Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e5f0bb1c3451e2b…

MALICIOUS

PDF

68.6 KB Created: 2021-02-20 17:04:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 02af86356f3e58a2ab312705736c0b13 SHA-1: c32403fabe2d7d90e3089dca5dbf499f8a938389 SHA-256: 3e5f0bb1c3451e2ba0f27458640bf55577f8fdbe8aa187ccc92cc4c363163525
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many pointing to disposable domains and using UTM parameters, indicative of a link farm or phishing campaign. ClamAV and ML classifiers identified the file as malicious, specifically a phishing trojan. The presence of embedded URLs and the structure suggest an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9690

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 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
  • 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://baarspo.ru/aws?utm_term=ledger+medical+definition PDF link annotation
    • https://cdn.sqhk.co/gokarunedod/QljeDiw/superhero_running_shirts_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/zapimafe/jj2jasm/heart_rate_monitor_app_iphone_6.pdfIn PDF document text
    • https://cdn.sqhk.co/sajatanugeg/nheKTAG/94579691296.pdfIn PDF document text
    • https://cdn.sqhk.co/wibezudak/ihgiibT/real_football_games_download_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/wujugojuse/jgLanyb/33428848529.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/jf2Pide/nofizegopani.pdfIn PDF document text
    • https://gomujivas.weebly.com/uploads/1/3/5/3/135321586/6006831.pdfIn PDF document text
    • https://lixawedubofalat.weebly.com/uploads/1/3/1/4/131407760/mexureni-nofagunesiwu.pdfIn PDF document text
    • https://cdn.sqhk.co/nixagigad/fhajeib/2058813236.pdfIn PDF document text
    • https://pasojifet.weebly.com/uploads/1/3/0/7/130776368/1f801be0b.pdfIn PDF document text
    • https://cdn.sqhk.co/zodavujera/jr9kJ6c/truck_driving_racing_3d.pdfIn PDF document text
    • https://rajizoru.weebly.com/uploads/1/3/1/8/131856770/bixun.pdfIn PDF document text
    • https://tevukebejesa.weebly.com/uploads/1/3/2/6/132695492/842948.pdfIn PDF document text
    • https://ramaxuvezida.weebly.com/uploads/1/3/4/3/134327775/kiluzejufisusavazub.pdfIn PDF document text
    • https://cdn.sqhk.co/xenivoronizu/jfjdido/necromancer_spectre_build_poe.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/punurum/47556357465.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/94186264627.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/35105354155.pdfIn PDF document text
    • http://buxamojajowolos.rf.gd/32934819021.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF145 5104 bytes
SHA-256: eb22962dd64432d5c930137ee3e29aa01be98ac4abcc9acba9c64faff66b6245

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