Malicious PDF — malware analysis report

Static analysis result for SHA-256 87fed4e1bbebf1f1…

MALICIOUS

PDF

61.1 KB Created: 2020-12-19 21:45:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5cbe0355c0c6dcaa01ae6e39679b5e46 SHA-1: 08027cdcb3f10fdfdf241e086343d7daacfca54b SHA-256: 87fed4e1bbebf1f1a608564e56429ef334c8dfcfd316f6f474bffe88f1dde74c
124 Risk Score

Malware Insights

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

The sample is identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'traffnew.ru', which is flagged as a link farm on disposable hosting. The document body is heavily obfuscated and unreadable, suggesting an attempt to hide malicious content. The primary attack vector appears to be directing the user to a suspicious external URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8124

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://traffnew.ru/aws?utm_term=art+and+the+christian+apocrypha+pdf PDF link annotation
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/4413176.pdfIn PDF document text
    • https://wudizibi.weebly.com/uploads/1/3/4/4/134477582/bfd0a1fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372371/normal_5f892f6f503b1.pdfIn PDF document text
    • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/13d71d437be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367017/normal_5fc0d8e24b9c2.pdfIn PDF document text
    • https://tugarekuxu.weebly.com/uploads/1/3/4/3/134307697/7a3969f.pdfIn PDF document text
    • https://wilixutisew.weebly.com/uploads/1/3/4/0/134095986/252d5fb0f50b.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/2400deed-94e8-40d8-8b3b-89ca2692b7b7/49581598318.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc522e660f2895dc10348e3/t/5fccf700260a660a6bdcd790/1607268098614/toolbox_murders_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c41a20ee-564b-4af9-ba11-ab084cd43400/frm_part_2_sample_exam.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11355ab79f442f22aa123/t/5fd035adc0a29916a563e7ed/1607480751767/ghost_rider_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23b4e8f0-d2d8-43d3-8716-a5fc9f5e67ca/45088996014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/153d5c84-1500-4c0c-9c95-55259b190680/69827340180.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afd88058-3195-4671-baa4-705c2c120565/affirmative_action_pros_and_cons_statistics.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/zaxawawitetegukafukanuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b10cfe8-c40f-44db-9de7-21f5c9a5e367/drug_calculations_made_easy.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_off0000d190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD190 5300 bytes
SHA-256: aa28d3580cf9ee36c53616eecba02e4f20b5d87c52c4f33c946c9df51d211dce