Malicious PDF — malware analysis report

Static analysis result for SHA-256 0701f40da00a7c3a…

MALICIOUS

PDF

59.5 KB Created: 2020-12-19 16:43:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f7d62b83cad067628af00609514d37fa SHA-1: 38da04032d5e7ceea1258f9c699edffef2872c78 SHA-256: 0701f40da00a7c3a4d36f0c40c7c0a148b77fa20e675473528037ef8c394c635
204 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was detected as malicious by multiple heuristics and a machine learning classifier, indicating it is likely a phishing or malware distribution attempt. The embedded URLs, particularly 'https://traffmen.ru/123?utm_term=dodge+magnum+srt8+for+sale+in+california', point to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be a lure related to a vehicle sale, designed to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://traffmen.ru/123?utm_term=dodge+magnum+srt8+for+sale+in+california In PDF document text
    • https://cdn-cms.f-static.net/uploads/4420470/normal_5fbefcb6151c2.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/wopuvotawo-dasosiw-dedazijixibo-mijofuliwona.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459029/normal_5fcdb050824b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489061/normal_5fd7f7a5a52f5.pdfIn PDF document text
    • https://moxizeza.weebly.com/uploads/1/3/3/9/133999163/zenufixomarodolewo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470401/normal_5fd92146a9aaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392452/normal_5f9bddb88b9eb.pdfIn PDF document text
    • https://dagakaxogofawi.weebly.com/uploads/1/3/4/6/134699425/rusifege.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427544/normal_5f9fc3d15da86.pdfIn PDF document text
    • https://nikokabiliru.weebly.com/uploads/1/3/1/4/131409463/1660a45b3e6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374704/normal_5fd0bc14ae2df.pdfIn PDF document text
    • https://ziwuwozapa.weebly.com/uploads/1/3/4/5/134517717/9917140.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fdd546437a75c289d599510/t/5fdd6479c18bd5077c89561e/1608344697865/black_bardot_bodysuit_missguided.pdfIn 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_off0000ab6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB6E 5536 bytes
SHA-256: 5801a9c58798a3485ca301ad3c2e376d005271fb5f92ff961448e5efbacda479
font_01_sfnt_off0000be2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE2C 10276 bytes
SHA-256: 82e3b3da06f5128d8af1e36dba3082a28a7adb1d344df80869ae37743e5ea9e7

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