Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 ac13144f54d1d428…

MALICIOUS

PDF / .VIR

497.4 KB Created: 2023-11-27 11:24:29 Authoring application: Soda PDF First seen: 2024-04-14
MD5: 260e4a2119e8004b848094782e744d69 SHA-1: 11ea0909055b8a01a4e2820e15efb9277e0c0d69 SHA-256: ac13144f54d1d4283b0cc778bede0314d170f5a5f7cc0187161ce04cf32bbe8d
306 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6148

Heuristics 9

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
    PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://adservice.google.com.ng/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/ad56508d-b150-4975-94b1-1fed548902b9/downloads/59907094035.pdf In PDF document text
    • https://adservice.google.com.sb/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/1216c7cf-d5ce-4776-9057-2705d5a4a081/downloads/american_cinematographer_magazine_free_download.pdfIn PDF document text
    • https://adservice.google.com.ph/ddm/clk/425484003;227454619;f;;%3F//img1.wsimg.com/blobby/go/1216c7cf-d5ce-4776-9057-2705d5a4a081/downloads/roxisixupozemuserenit.pdfIn PDF document text
    • https://shinglee-mathematics-1-7th-edition-pdf-f.singfortheclimate.de/757474.pdfIn PDF document text
    • https://adservice.google.com.ag/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/26d0d91d-0a7e-47a4-ba18-207b7389562d/downloads/85504815749.pdfIn PDF document text
    • https://adservice.google.com.gh/ddm/clk/408405163;208572896;n;;%3F//descargar-rabuffetti-calculo-2-pdf-grati.marieschefssoap.com/vifizole.pdfIn PDF document text
    • http://map-of-elbe-river.iptechnologytransfer.com/75.pdfIn PDF document text
    • https://adservice.google.com.pa/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/00810c7d-a901-42bd-b2e3-20945a4ad8cb/downloads/kegidesenuxagi.pdfIn PDF document text
    • http://map-port-townsend-washington.pusatatas.com/kifaniralemojapuwef.pdfIn PDF document text
    • https://adservice.google.com.ec/ddm/clk/426382440;228185261;d;;%3F//img1.wsimg.com/blobby/go/1216c7cf-d5ce-4776-9057-2705d5a4a081/downloads/phone_number_lookup_app_android.pdfIn PDF document text
    • https://adservice.google.com.na/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/ad56508d-b150-4975-94b1-1fed548902b9/downloads/60158182842.pdfIn PDF document text
    • https://kasibon.joopsoa.com/650697883?fuzakadavevotifogagoserajopuzefemozavigapeguvegideboliwitenapivoxafibotivutonewokokibuzokati=zugasekusavukozupizobetimuvupinizazonilerizomigafudarenujofidetowevujuluwogopatesufijuwavamukiderijebifuzuzumewamegaxawajilamimaxosuburoperizixusexifemosasowewumuxireruvafitarekivabotajagogokidumepexolusu&utm_term=application+for+australian+passport+b11+form&vonegusurunorijugibojavezewunafababolotatoxositunutupukegedidomob=daxikafudovemulerurakirivexonikijufogududivoxekalatorudugurogarutumozupozesixudowufomasufugudetupobobufipexeburogurazerevulovIn PDF document text
    • https://kasibon.joopsoa.com/650697883?fuzakadavevotifogagoserajopuzefemozavigapeguvegideboliwitenapivoxafibotivutonewokokibuzokati=zugasekusavukozupizobetimuvupinizazonilerizomigafudarenujofidetowevujuluwogopatesufijuwavamukiderijebifuzuzumewamegaxawajilamimaxosuburoperizixusexifemosasowewumuxireruvPDF link annotation
    • https://kasibon.joopsoa.com/650697883?fuzakadavevotifogagoserajopuzefemozavigapeguvegideboliwitenapivoxafibotivutonewokokibuzokati=zugasekusavukozupizobetimuvupinizazonilerizomigafudarenujofidetowevujuluwogopatesufijuwavamukiderijebifuzuzumewamegaxawajilamimaxosuburoperizixusexifemosasowewumuxireruvafitarekivabotajagogokidumepexolusu&utm_term=application+for+australian+passport+b11+form&vonegusurunorijugibojavezewunafababolotatoxositunutupukegedidomob=daxikafudovemulerurakirivexonikijufogududivoPDF link annotation
    • https://img1.wsimg.com/blobby/go/2e4a6e1d-6d83-45f5-ba4e-35f9c4bdbe5b/downloads/sunobijuwijimadupe.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/4d143552-d327-4495-9a1c-ecda7df13615/downloads/43613039557.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/f6479094-5bf7-4b46-9ced-d0f3d0d49751/downloads/24895216048.pdfIn PDF document text
    • https://adservice.google.sh/ddm/clk/478229754;284365575;c;;%3F//img1.wsimg.com/blobby/go/51377169-a229-48cc-b386-315052386624/downloads/54903296985.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/a9097d4f-efbb-4a69-a459-ae11b96ed1d1/downloads/quitclaim_deed_california.pdfIn PDF document text
    • https://adservice.google.com.br/ddm/clk/424929466;226923624;r;;%3F//first-aid-step-1-usmle-pdf.georgialapsurgery.com/vogakab.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/c7015bda-97a3-4f42-83ae-adb780063b6d/downloads/message_app_for_android_apk.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/51377169-a229-48cc-b386-315052386624/downloads/bimojixugoxabiwizevori.pdfIn PDF document text
    • http://adservice.google.tn/ddm/clk/408405163;208572896;n;;%3F//lunuz.genuineviking.parts/zozujarabolapukize.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/24fbbfc9-9289-47c1-84b1-5e8061978ca3/downloads/87676172371.pdfIn PDF document text
    • https://adservice.google.de/ddm/clk/425484003;227454619;f;;%3F//img1.wsimg.com/blobby/go/26d0d91d-0a7e-47a4-ba18-207b7389562d/downloads/48757500788.pdfIn PDF document text
    • http://adservice.google.com.tw/ddm/clk/295204063;122181591;w;;%3F//nevada-property-casualty-exam-secrets-st.maghrib.site/jekinudon.pdfIn PDF document text
    • https://adservice.google.st/ddm/clk/478229754;284365575;c;;%3F//img1.wsimg.com/blobby/go/a9097d4f-efbb-4a69-a459-ae11b96ed1d1/downloads/75095414763.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d14b3d7c-d2a1-4602-b2ac-f75e1e5d1a45/downloads/36041941440.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/f6479094-5bf7-4b46-9ced-d0f3d0d49751/downloads/calendar_app_with_to_do_list_android.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/19af5b03-a7af-4494-9fae-b50c94194596/downloads/brighthouse_tv_guide_clearwater_fl.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/c85c0661-22c8-43e3-814c-10375dab7097/downloads/best_qr_barcode_scanner_android.pdfIn PDF document text
    • http://adservice.google.cv/ddm/clk/448794861;252804937;a;;%3F//introduction-to-high-energy-physics-perk.blackwomenpersonals.com/2465474.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/8b277512-469a-4ea0-af84-3760ac80c101/downloads/foganu.pdfIn PDF document text
    • https://adservice.google.com.tr/ddm/clk/424929466;226923624;r;;%3F//job-safety-analysis-in-construction-pdf.kapulemu.cfd/448154653.pdfIn PDF document text
    • https://adservice.google.si/ddm/clk/445204615;249060672;c;;%3F//img1.wsimg.com/blobby/go/b35d4d78-84bd-42dc-97eb-c702f90ed329/downloads/66976650678.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d71d22c7-e6b6-498e-9e93-30f871a40703/downloads/pazuzelupal.pdfIn PDF document text
    • https://adservice.google.la/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/64bf7e24-917f-4fe6-9b90-623f7d2c7670/downloads/38646070416.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/f4672671-e054-4d8c-b986-20b75378e608/downloads/12636123556.pdfIn PDF document text
    • https://adservice.google.co.jp/ddm/clk/408533097;208818505;l;;%3F//img1.wsimg.com/blobby/go/1216c7cf-d5ce-4776-9057-2705d5a4a081/downloads/23499385688.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/d14b3d7c-d2a1-4602-b2ac-f75e1e5d1a45/downloads/zegudalinosipudewarud.pdfIn PDF document text
    • https://adservice.google.hu/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/24fbbfc9-9289-47c1-84b1-5e8061978ca3/downloads/50612477572.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/c85c0661-22c8-43e3-814c-10375dab7097/downloads/fuvetava.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0007739a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007739a.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007739a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7739A 16188 bytes
SHA-256: 929209da3ccf7c1f29c5a4869da9d155b7ecc8d39bb8351ae5bec6ce95f72834
font_01_sfnt_off00079d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79D8B 11532 bytes
SHA-256: 65e8b92f645c0c5840f5614dd9fa53dec899c6ece4d788e672f109e1a95104fc