Malicious PDF — malware analysis report

Static analysis result for SHA-256 b753eedd766b46fc…

MALICIOUS

PDF

66.6 KB Created: 2021-02-14 10:07:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68441d24de2b943b595beb36d1d06db0 SHA-1: f6ad247a176e73a56ea46fcc0f16db42f8dd9a2d SHA-256: b753eedd766b46fcfb3d3480817a565ddd41b7be111648b3625723aece6956c7
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to disposable hosting and link farms, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with techniques used to redirect users to malicious sites, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9489

Heuristics 4

  • 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
  • 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://seumenha.ru/aws?utm_term=adobe+photoshop+fix+apkpure
    • https://dorubirema.weebly.com/uploads/1/3/4/3/134317311/wigalokefimotedofusa.pdf
    • https://maxijegiv.weebly.com/uploads/1/3/4/1/134131269/c38f288.pdf
    • https://static.s123-cdn-static.com/uploads/4473030/normal_5fdf763e4bcda.pdf
    • https://sobidoduwipiver.weebly.com/uploads/1/3/1/4/131406433/1412053.pdf
    • https://static.s123-cdn-static.com/uploads/4387226/normal_5fdf8270f24f3.pdf
    • https://jexafowasefuxuv.weebly.com/uploads/1/3/4/5/134588667/993016fa0b3.pdf
    • http://shtangennstutkupitseychas.xyz/ate_ve_su_2_kitapjvv4e.pdf
    • http://quinzsy-studio.design/coordinating_conjunction_worksheets_for_grade_6bmifq.pdf
    • https://jasugigikimodo.weebly.com/uploads/1/3/1/3/131383258/wuxafago.pdf
    • https://ludurodeb.weebly.com/uploads/1/3/4/8/134852143/bupetiw.pdf
    • https://xaviloxoganobe.weebly.com/uploads/1/3/1/3/131383750/wuwawupamexid.pdf
    • https://cdn-cms.f-static.net/uploads/4369912/normal_5fdaf5522ef31.pdf
    • https://jedewudozoj.weebly.com/uploads/1/3/0/7/130739070/kigofuwara_fapizud_xoxefajulorovo.pdf
    • https://cdn-cms.f-static.net/uploads/4387807/normal_5fe6c206c5643.pdf
    • http://lnstagram-helping.live/merobimo4xti7.pdf
    • https://static.s123-cdn-static.com/uploads/4370071/normal_5fdd24ad1d7ff.pdf
    • http://legalvictory.group/knife_spine_etchingvi0rd.pdf
    • https://kitejunozog.weebly.com/uploads/1/3/4/3/134319277/7227649.pdf
    • https://s3.amazonaws.com/novifamigot/koziganewominokigagedigi.pdf
    • https://s3.amazonaws.com/miwolezedubujoz/siderutex.pdf
    • https://s3.amazonaws.com/daxemo/29934313078.pdf
    • https://s3.amazonaws.com/jinotugiwomo/53354284445.pdf

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