Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 cf2c99fe1acebe06…

MALICIOUS

PDF / .VIR

428.3 KB Created: 2023-03-29 06:22:09 Authoring application: pstoedit First seen: 2024-04-16
MD5: 098b6d86dcfe72f940a1ce3817e55bd5 SHA-1: df06f2e149317fa9f5c042677d970f58a546a446 SHA-256: cf2c99fe1acebe06a270be8b5240dad45bedaf3a190c6dbe7a416ca3cba376c1
276 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9194

Heuristics 8

  • 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.
  • 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://voxeludateg.mofien.co.za/949030226760086125?ratisovanidajirazerip=lekilariguwokajemewalebananimutugobuvenusaxipegixifufetivipawijezalotilimekirusikokesirodezilasivirikamogesuxiludonapadivepozonitapotogutevekoxejovudafanitemagubevefidonumifebogebenumutasikafigozotuwodar&keyword=llama+45+acp+manual&vowidijobenaboliwinuxamup=zujavazedafudawagiripiruraveboloxavokoresifaximotekojegapogikafofoguzonofapiwanuxobibizovonavosexosotasizasubudaxofojimetibujitupojom PDF link annotation
    • https://adservice.google.co.ug/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/7a4cf981-99d8-4de4-8550-e77a791e0e3c/downloads/89065077468.pdfIn PDF document text
    • http://adservice.google.com.et/ddm/clk/426382440;228185261;d;;%3F//vowamudu.pincorrectia.com/sosabu.pdfIn PDF document text
    • https://bunaxurufezu.fipixasu.cfd/sizalo.pdfIn PDF document text
    • https://adservice.google.co.il/ddm/clk/466651624;272226156;i;;%3F//img1.wsimg.com/blobby/go/32bcaf7d-c6f4-48aa-9686-5b05a95d8825/downloads/giwurugupoje.pdfIn PDF document text
    • http://caja-de-minecraft.simplistechs.com/lak.pdfIn PDF document text
    • http://the-joker-nikki-j-summers-pdf.cabletraysupply.com/betejokoxisifosodul.pdfIn PDF document text
    • https://voxeludateg.mofien.co.za/949030226760086125?ratisovanidajirazerip=lekilariguwokajemewalebananimutugobuvenusaxipegixifufetivipawijezalotilimekirusikokesirodezilasivirikamogesuxiludonapadivepozonitapotogutevekoxejovudafanitemagubevefidonumifebogebenumutasikafigozotuwodar&keyword=llama+45+acp+mPDF link annotation
    • http://adservice.google.je/ddm/clk/295204063;122181591;w;;%3F//legal-and-ethical-issues-for-health-prof.veganasms.com/199.pdfIn PDF document text
    • https://adservice.google.nu/ddm/clk/408533097;208818505;l;;%3F//img1.wsimg.com/blobby/go/1d1e4ca6-c6da-4e45-92fc-e06f6e988839/downloads/57575816115.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/b4b08fcb-46ee-4b86-8d58-d98ce36005bf/downloads/wobujezo.pdfIn PDF document text
    • https://adservice.google.dm/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/707695a0-ca53-4728-85c2-0bdf3976c66a/downloads/movie_maker_app_android_free.pdfIn PDF document text
    • https://adservice.google.sc/ddm/clk/300948314;127869103;e;;%3F//img1.wsimg.com/blobby/go/7aecbe57-b388-44e2-93b0-571546a4f6c4/downloads/72693397858.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/6625c440-1bcf-4aa8-9103-49fc181abc51/downloads/11013634532.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/388fb92b-e256-4da3-8ab4-dd8c7f500305/downloads/fssc_22020_bahasa_indonesia.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/388fb92b-e256-4da3-8ab4-dd8c7f500305/downloads/1810266596.pdfIn PDF document text
    • https://adservice.google.ro/ddm/clk/478229754;284365575;c;;%3F//calculus-with-multiple-variables-essenti.budoxaviw.online/461.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7a4cf981-99d8-4de4-8550-e77a791e0e3c/downloads/drinking_problem_line_dance.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/bed743ea-ca8a-4055-9b76-f9f5b7925538/downloads/28532810329.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/5f73fac7-59a7-47f8-b157-62efff326da1/downloads/donafekojefafidowiri.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_off00065984.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00065984.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00065984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65984 11028 bytes
SHA-256: 9fa4186a4f3362ccda3d2d200cd2cd4010408a8f4bcf195f187c5ae75ebca7a8
font_01_sfnt_off00067314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67314 18076 bytes
SHA-256: 5951d577146de4ce6f223d999f67ba8499d7c18f0a135dec67956427756b23e8