Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d6eb3dedd3bcc59…

MALICIOUS

PDF

70.8 KB Created: 2020-12-08 03:42:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5546abf86b6e5ec97e6b443bdb829fca SHA-1: 96284d82d158dfe779f5e20da276a0d6235efffc SHA-256: 0d6eb3dedd3bcc59a165c6e32c99933a0aa735498711c403477971629b8dbf75
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/strik?utm_term=strong+fathers+strong+daughters+review PDF link annotation
    • https://mijelowiwiloz.weebly.com/uploads/1/3/1/1/131163856/zaberimov.pdfIn PDF document text
    • https://nexirexosevexos.weebly.com/uploads/1/3/4/5/134500935/gitexudulosunu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475571/normal_5fb73328b1cc5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd273e87c90448ba1a0248/1606231870746/35407163808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a23dbfa-f9f9-470c-827a-056f1e53f79f/fofigudu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5473b91-604e-4231-9bf6-786b3534a5e6/wosifutogezidafef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f269a297-d481-4ac3-ab29-0b9131dda217/rwby_beowolf_model.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9946e93-b3c7-418d-a035-8b47c086cf95/xemovagiju.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc19ddc2bbd7406580b9f20/t/5fc4c030a97599144e8e94e0/1606729777449/pennzoil_synchromesh_manual_transmission_fluid_for_honda.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/63954518321.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc69e3a3-b15a-40d5-9f8e-742261a15bf4/94545124131.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB0D 5276 bytes
SHA-256: dedb88f1119473b88bc2520b7bbcd15160a87dde223ffc85c3c45274b82181a7
font_01_sfnt_off0000dcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFC 10304 bytes
SHA-256: a26ea0f39d20d9e2d515928dc18f68ffbc317c6a786373b9fa64182f2d253739
font_02_sfnt_off0000ffef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFEF 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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