Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 ec9d6637f673ea17…

MALICIOUS

PDF / .VIR

490.2 KB Created: 2023-02-24 20:33:45 Authoring application: SWFTools First seen: 2024-05-07
MD5: b27a8ec0e27267dd6eea2c3f2c368d77 SHA-1: 8e37f08b24e14cd95c7a99ce7a21130dc08f9493 SHA-256: ec9d6637f673ea17c01b3f0d0765fe375784a82dd43b1d4c53a4eb1b1dccb3b8
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6734

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 http://donald-h-mcburney-research-methods-5th-e.stsx.ink/senavevuwox.pdf In PDF document text
    • https://adservice.google.co.zm/ddm/clk/466651624;272226156;i;;%3F//img1.wsimg.com/blobby/go/63dccf72-7be1-4876-b73a-9f2ad68d69e8/downloads/literatura_brasileira_em_quadrinhos.pdfIn PDF document text
    • https://div-to-pdf-jquery.jumoxenaf.cfd/lotisawebo.pdfIn PDF document text
    • http://quarta-dimens-o-livro-pdf-gr-tis.onlychelseawaves.com/junomokubelubipo.pdfIn PDF document text
    • https://tavujal.lovali.co.za/791721949577356495?vasilivujezewafemutubudokodulagadegarojaxepixobefaxakusejusovewozufa=lulinudupixotesudanipegujasuzadaxusepanitobarikoperaraxelegapiguzafibipupikeradenulogideronodejuwewaxulogipivigevarojesasekirejerosazilefawajutudapinovasusutaxelikixiramunitoxoxigeluxajavurewipixotanesi&keyword=chinese+architecture+a+pictorial+history+pdf&rudinuwowerumulatozatikaxupokagoxovokemivedoro=viwazenoriletovowipumawukexikafomulipamawogosemesozufisomutulubuzinotoxawofewuzolujuranidobopolagupipudazijasimigesukegixopasetudopomarogarIn PDF document text
    • https://tavujal.lovali.co.za/791721949577356495?vasilivujezewafemutubudokodulagadegarojaxepixobefaxakusejusovewozufa=lulinudupixotesudanipegujasuzadaxusepanitobarikoperaraxelegapiguzafibipupikeradenulogideronodejuwewaxulogipivigevarojesasekirejerosazilefawajutudapinovasusutaxelikixiramunitoxoxigeluxPDF link annotation
    • https://tavujal.lovali.co.za/791721949577356495?vasilivujezewafemutubudokodulagadegarojaxepixobefaxakusejusovewozufa=lulinudupixotesudanipegujasuzadaxusepanitobarikoperaraxelegapiguzafibipupikeradenulogideronodejuwewaxulogipivigevarojesasekirejerosazilefawajutudapinovasusutaxelikixiramunitoxoxigeluxajavurewipixotanesi&keyword=chinese+architecture+a+pictorial+history+pdf&rudinuwowerumulatozatikaxupokagoxovokemivedoro=viwazenoriletovowipumawukexikafomulipamawogosemesozufisomutulubuzinotoxawofewuzoPDF link annotation
    • http://wenq.org/In extracted file (font_01_sfnt_off00070cd7.bin)
    • https://img1.wsimg.com/blobby/go/63dccf72-7be1-4876-b73a-9f2ad68d69e8/downloads/dizivebodar.pdfIn PDF document text
    • https://adservice.google.tl/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/cb247fed-e30a-4aff-93c4-d4c2fd8b7b75/downloads/complete_list_of_android_auto_apps.pdfIn PDF document text
    • https://adservice.google.bs/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/c2808bc6-f014-4e13-bda9-fb9fed72d2f8/downloads/toxuzete.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/0f3f56ba-5d04-46d2-9932-7e57f099b9e1/downloads/79551567859.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/0c796096-12ec-40b9-b03d-fd0efc30eb84/downloads/79665477840.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/1ad5d32f-271f-480e-a818-2cf65e93c8a0/downloads/14376170646.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/25950010-c6d5-42d4-a656-a319b4d0e4da/downloads/kavek.pdfIn PDF document text
    • https://adservice.google.jo/ddm/clk/478229754;284365575;c;;%3F//lavanderia-a-gettoni-vicino-a-me.rotewulomi.sbs/kotetobenusagatuva.pdfIn PDF document text
    • https://adservice.google.co.jp/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/74fc1813-6173-4e1c-baaa-0a8f87fd5bb9/downloads/introducing_applied_linguistics_concepts_and_skills.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/0c796096-12ec-40b9-b03d-fd0efc30eb84/downloads/tajepedivolat.pdfIn PDF document text
    • https://adservice.google.cg/ddm/clk/426382440;228185261;d;;%3F//img1.wsimg.com/blobby/go/cb247fed-e30a-4aff-93c4-d4c2fd8b7b75/downloads/55980539614.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/a69478e6-f005-411d-9089-b7b5cba0b646/downloads/city_of_regina_summer_leisure_guide_2020.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/c2808bc6-f014-4e13-bda9-fb9fed72d2f8/downloads/14567453178.pdfIn PDF document text
    • https://adservice.google.ml/ddm/clk/466651624;272226156;i;;%3F//img1.wsimg.com/blobby/go/2e9f4832-47a3-4cd1-ab6d-cdcb60da940b/downloads/11893085949.pdfIn PDF document text
    • https://adservice.google.jo/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/3e77e6f3-ebb8-4580-b2f7-fd9c731ef018/downloads/blocking_caller_on_android.pdfIn PDF document text
    • https://adservice.google.kg/ddm/clk/478229754;284365575;c;;%3F//img1.wsimg.com/blobby/go/76a47e87-ff76-491e-988f-56ed3ff214bb/downloads/gawavuvunuwijesere.pdfIn PDF document text
    • https://adservice.google.ml/ddm/clk/478229754;284365575;c;;%3F//img1.wsimg.com/blobby/go/0c796096-12ec-40b9-b03d-fd0efc30eb84/downloads/22212870981.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/c03b7db8-dd12-4ea2-bf1d-fdf9f233f72e/downloads/41114425922.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_off0006f256.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006f256.bin)
    • http://nmr.mgh.harvard.edu/~fangq/In extracted file (font_01_sfnt_off00070cd7.bin)
    • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_01_sfnt_off00070cd7.bin)
🗂 Part of campaign: wenq.org 13 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006f256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F256 11328 bytes
SHA-256: 90acd8df94e010ba3119990a7ffd9c107a3f68554271b73dc3a98d74da135e9b
font_01_sfnt_off00070cd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70CD7 31040 bytes
SHA-256: 5b5976fc73aab6d82b63ff6ad3cb8e39e2ae7914ac52db7a22b5699a29d13c79
font_02_sfnt_off000766c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766C5 19776 bytes
SHA-256: c6e7d5e445d9de6a44ad7d3f7978247056a8b2ffb6a12aa17bd05195d46785f9