Malicious PDF — malware analysis report

Static analysis result for SHA-256 963b32e37883e7b4…

MALICIOUS

PDF

67.6 KB Created: 2021-02-09 17:28:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: faae1f304ebf9c08fb576b9af7fa3d52 SHA-1: 2a9db2652180a0e783b459437819f397b6b17a87 SHA-256: 963b32e37883e7b40aa64d46e69309ab2a759b4f3573d5b0c2095167a957737e
124 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs pointing to disposable domains and link farms, a common tactic for phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM suggests the document is designed as a link farm, likely to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8223

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://baarspo.ru/aws?utm_term=elektron+analog+four+user+manual PDF link annotation
    • https://cdn.sqhk.co/novozefox/cPnWjaI/island_tribe_4_online.pdfIn PDF document text
    • http://unonatur.space/welcome_zindagi_marathi_movie_watch_online7nbam.pdfIn PDF document text
    • http://detonic-romania.website/1259321563750p69.pdfIn PDF document text
    • http://future-techno.ru/fitewikojawi55ckn.pdfIn PDF document text
    • https://cdn.sqhk.co/gadukupuwe/ijhJEmM/livab.pdfIn PDF document text
    • http://igme.site/6327815025656w8r.pdfIn PDF document text
    • https://cdn.sqhk.co/kufejagefep/idiehcn/king_of_thieves_game_bases.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/idH5CfP/9361823095.pdfIn PDF document text
    • https://cdn.sqhk.co/waderapal/x20Ficb/rimagelokupolovunub.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473637/normal_5fcaa13aa5c22.pdfIn PDF document text
    • https://cdn.sqhk.co/figesuweno/hdCShaw/i_love_hue_too_solutions_authority.pdfIn PDF document text
    • https://cdn.sqhk.co/vixuwegijelo/gfe1icU/21616305304.pdfIn PDF document text
    • https://cdn.sqhk.co/livoluxuwad/jgrvjbD/72747499702.pdfIn PDF document text
    • http://copyrighthelpbusiness.net/the_dark_tower_ii_the_drawing_of_the_threewm3zi.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/hgnpjgT/18069951996.pdfIn PDF document text
    • https://cdn.sqhk.co/vawadawuleja/jrhhqjb/tasabifu.pdfIn PDF document text
    • http://avto-document.site/beli_pulsa_pake_gopay_murahwxmri.pdfIn PDF document text
    • https://cdn.sqhk.co/venitalobeni/XibOjjd/bemanosakuf.pdfIn PDF document text
    • http://kittyplay.online/amar_chitra_katha_tamilm69k0.pdfIn PDF document text
    • http://yognat.space/91227237265vu1p5.pdfIn PDF document text
    • http://livethailand.fun/72649253817e3f2f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f77a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF77A 5108 bytes
SHA-256: 97cbc3b24c9cadc3f5df2ede3c006a390c1c4daaafd1842b5dc0d9cc88efc9e5