Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6eb71a32ad33ebd…

MALICIOUS

PDF

65.8 KB Created: 2021-02-24 14:54:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 34788754abcd8b1a03246b27e8b0a154 SHA-1: e8c77a30e03d8b2c3cf7cc576b821dea2ffca325 SHA-256: c6eb71a32ad33ebd0e36dc7e600fc0723d240ff3de465a46f7a36fd45ff2c366
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://maypoin.ru/wix?keyword=tzumi+sound+mates+6759+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383561/normal_603414c383795.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/d6ijFc0/luvopo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491705/normal_5feb104e3f60f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476766/normal_6030dab4c2810.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477401/normal_60224244ccb37.pdfIn PDF document text
    • https://berapiginufar.weebly.com/uploads/1/3/4/3/134316450/3749856.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/gchf7T2/buzzfeed_unsolved_brent.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407060/normal_601119a6923e6.pdfIn PDF document text
    • https://nodepinanobepex.weebly.com/uploads/1/3/1/3/131381288/85e40.pdfIn PDF document text
    • https://cdn.sqhk.co/voguzasijur/vHbhiid/piano_music_for_beginners_disney.pdfIn PDF document text
    • https://cdn.sqhk.co/tajixixejafi/jjgf8tN/game_dev_tycoon_guide_1._8.pdfIn PDF document text
    • https://luwupedo.weebly.com/uploads/1/3/1/3/131383743/3289472.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504839/normal_602c5fb1389a1.pdfIn PDF document text
    • https://cdn.sqhk.co/migukosodaza/BGjeIid/vengeance_rpg_mega_mod_apk.pdfIn PDF document text
    • https://xigowepuge.weebly.com/uploads/1/3/6/0/136082497/bitozipaxapepukepej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485705/normal_6011e56997fa2.pdfIn PDF document text
    • https://cdn.sqhk.co/gobenebovi/hiyDLla/pipaz.pdfIn PDF document text
    • https://xaweworamek.weebly.com/uploads/1/3/4/6/134610398/zenidesevorefix-binunoneragugi-mokik-lumejugafuvuxo.pdfIn PDF document text
    • https://cdn.sqhk.co/zupisopad/dihhHge/26657676052.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/5eiiehe/zadelobifosemu.pdfIn PDF document text
    • https://kimukotepasa.weebly.com/uploads/1/3/5/3/135329918/titaxebi.pdfIn PDF document text
    • https://cdn.sqhk.co/gadujotev/Igfjfgk/32738588121.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC72D 5388 bytes
SHA-256: 2d49a8daefd7e4e6194eb9082d52a92ebfb443a14f6d4dfa3ee39cc83e564ba3
font_01_sfnt_off0000d97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD97A 9552 bytes
SHA-256: e38dc1ef1eebbb54f09d46f3b991f5642ac10350d4e86ba9aa267d835f80345a

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