Malicious PDF — malware analysis report

Static analysis result for SHA-256 029d54965e419a84…

MALICIOUS

PDF

91.4 KB Created: 2021-03-21 08:11:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 46824eec3905fb80dbd12e66931ae71e SHA-1: 52a812375e53fff9f3c6cd65521617e7c9c1cf49 SHA-256: 029d54965e419a84ebc3452f542e1365c94c95a8507f14e4dab1ecfdfc251cb1
264 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing and trojan threat. It impersonates the 'Target' brand and uses a 'download button' lure to trick users into clicking a link. The document also contains a large number of external links, suggesting it may be part of a link farm designed to distribute malware or lead to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://wizuxasu.weebly.com/uploads/1/3/4/8/134876367/4226539.pdf.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mezovuduw.ru/wix?keyword=halo+combat+evolved+download+unblocked+at+school PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476429/normal_5fe1873f2aa44.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474998/normal_600248f3668e2.pdfIn PDF document text
    • https://cdn.sqhk.co/mewovegid/7jaggje/17266939804.pdfIn PDF document text
    • https://cdn.sqhk.co/lizubenesowi/HQhgign/electronic_drum_kits_for_sale_near_me.pdfIn PDF document text
    • http://rorixuge.iblogger.org/awakening_by_kate_chopin.pdfIn PDF document text
    • https://cdn.sqhk.co/senepaderu/Pctngh1/ant_smashers_rewards_code.pdfIn PDF document text
    • https://wizuxasu.weebly.com/uploads/1/3/4/8/134876367/4226539.pdfIn PDF document text
    • https://gebowajawuma.weebly.com/uploads/1/3/4/5/134582097/44a9aea91f9c96.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/kivugupanaxugu.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/adjectives_worksheets_for_grade_1_and_2.pdfIn PDF document text
    • http://nanoxamovafosox.epizy.com/fujumeleve.pdfIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/2810241337.pdfIn PDF document text
    • http://lomigibowexalu.epizy.com/where_did_the_united_states_invest_the_most_money_in_latin_america.pdfIn PDF document text
    • https://s3.amazonaws.com/musokejixami/wagner_w15_steamperfect_wallpaper_steamer_review.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/jonemexufogepa.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/dutiwasunolusofojadevo.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/wisuwipovifosozelekixapo.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000126a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126A3 5400 bytes
SHA-256: 19adb4444b1a50747017961d54c74669673670cbc481066675eba2a7811bddaf
font_01_sfnt_off000138ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138EC 11580 bytes
SHA-256: c747ae3abe86b8f3962e4e5070637a4dcee40eed69baec9e1d75a11675209c91

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