Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a3287bc0471af23…

MALICIOUS

PDF

166.2 KB Created: 2021-03-14 02:32:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5dbb3de380cf2f9fc97f1410b34e0c96 SHA-1: 5ea21deb7b7a33595c88d19895db197dcb73a690 SHA-256: 9a3287bc0471af233d9d56cad77519d0d1d612d8489e257aac92350d498e6e63
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xezojetit.ru/strik?utm_term=timeline+of+medieval+period+of+indian+history PDF link annotation
    • https://waxalema.weebly.com/uploads/1/3/4/3/134364729/9146161.pdfIn PDF document text
    • https://migokenumepo.weebly.com/uploads/1/3/1/4/131454620/makojaloridebu-gizuxosa-vatibukigomazed.pdfIn PDF document text
    • https://cdn.sqhk.co/jopubelo/kx3RjcY/japanese_used_auto_parts_in_japan.pdfIn PDF document text
    • http://momentshop.website/lemuvozebatatufunolafedseen5.pdfIn PDF document text
    • https://jopazidavasuzu.weebly.com/uploads/1/3/2/6/132681438/ruteze.pdfIn PDF document text
    • https://gorejirulikem.weebly.com/uploads/1/3/4/7/134738880/logonaxutu.pdfIn PDF document text
    • https://jixatazibasuv.weebly.com/uploads/1/3/4/4/134402985/pabusaf_laxuxegepu_pewom.pdfIn PDF document text
    • https://tisemijosugimuv.weebly.com/uploads/1/3/1/0/131070246/73517d93b0a65d8.pdfIn PDF document text
    • https://cdn.sqhk.co/bavimimo/jKZUtji/civil_war_battlefields_in_west_tennessee.pdfIn PDF document text
    • http://easy-money-cash.space/hp_laserjet_p1102_manual_guideiwqht.pdfIn PDF document text
    • https://sinekaku.weebly.com/uploads/1/3/5/9/135964305/tedozuvawuxoforifese.pdfIn PDF document text
    • https://cdn.sqhk.co/kurotevu/bHhficX/67967840626.pdfIn PDF document text
    • https://pelosewedi.weebly.com/uploads/1/3/4/7/134753512/xujanuk-nibobuda-bejutu.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/games_free_kjv_biblef22tm.pdfIn PDF document text
    • https://gijajagilaz.weebly.com/uploads/1/3/5/3/135313732/2269630.pdfIn PDF document text
    • https://rujapunilibufig.weebly.com/uploads/1/3/4/7/134713438/5539778.pdfIn PDF document text
    • https://bejokuwawij.weebly.com/uploads/1/3/4/6/134688199/kepibu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdda74c2-3a3d-4220-b406-cc6062d203e7/jatifezelip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca2f99e8-8f42-465c-93e8-e4e930741397/focusrite_scarlett_2i2_drivers_free_download_mac.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002542f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2542F 5392 bytes
SHA-256: 99da60366f3dfa8bdf0c27e63afa06c19e65ea1f93e17305c1400deb3b0b42ec
font_01_sfnt_off00026667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26667 10792 bytes
SHA-256: dac0374f3b500e0be8b38e87b315a1ecd6efcf24357fd5cc8048ccb9b82e04ec

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