Malicious PDF — malware analysis report

Static analysis result for SHA-256 0296cdc62d88d9b5…

MALICIOUS

PDF

74.9 KB Created: 2020-12-17 17:49:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fa05698333dbfe1b95a386d0088778d6 SHA-1: eb7754d1414eeea278f320ab97e290a5eb814cab SHA-256: 0296cdc62d88d9b54e4271d3e363713cd1b9e26071c297c2f88968862933c5e0
214 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 and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 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.
  • 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=animal+jam+secret+codes In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379241/normal_5f97d5bba084c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411498/normal_5f9860a61d743.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496225/normal_5fc3e1157c104.pdfIn PDF document text
    • https://zukutalemuz.weebly.com/uploads/1/3/4/5/134582669/9c21909d5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478968/normal_5fafd77ca9fc3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459805/normal_5fb4011e5045d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379473/normal_5fa6130b8f3cb.pdfIn PDF document text
    • https://patilufadan.weebly.com/uploads/1/3/4/4/134462925/edabd60fbd92.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/sezewu/e_adhaar_by_name.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1a5383dfdd95b60da62a1/t/5fcdf85dc836a917f9318147/1607333981820/survivalcraft_apk_download_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/7644259111.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/2713684302.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/razubipobogisib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/505a1225-56c0-4f4b-8f03-dfac5e8bd74b/zikaxagolusuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/mibamofijagotetawefado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ed7d560-de3f-4684-9475-8785c127b374/sniper_3d_assassin_hack.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 7

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_off0000dd9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9C 5152 bytes
SHA-256: c07b2ea139c28e4a56e560b87f5f3fbab926298c718d60adf8c749dbda6d6c50
font_01_sfnt_off0000eefe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFE 2252 bytes
SHA-256: f3ffe4ba3621d765656d78aaabd71fd798feab98c1821a744cf45e925a576ee8
font_02_sfnt_off0000f93f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93F 10260 bytes
SHA-256: 07b489a1d2298051ecafc549880b84169838da8b75b89f4450f6eb7f47cb5703

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