Malicious PDF — malware analysis report

Static analysis result for SHA-256 2032e558667907b8…

MALICIOUS

PDF

59.7 KB Created: 2020-11-10 01:28:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 569d55c7cf1455af99ed786b38f002ff SHA-1: 1ea29c2c37433a0392fd6d744487815040b5dd93 SHA-256: 2032e558667907b8a596735e8b2e216d5c5bf1210d46b4a5f3d1202878eb21a6
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, traffmen.ru, which is likely used to deliver a secondary payload. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit users by directing them to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • 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?keyword=renegade+racing+unblocked+games In PDF document text
    • https://nazuvunu.weebly.com/uploads/1/3/4/4/134438845/0cb5d3d9.pdfIn PDF document text
    • https://durabaseduxoj.weebly.com/uploads/1/3/4/2/134235759/nafaladumafuso_dupasuferipelix_tonevi_toboxasijobowo.pdfIn PDF document text
    • https://zinikedefi.weebly.com/uploads/1/3/0/7/130740178/3827253.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412895/normal_5f9cd68b4149c.pdfIn PDF document text
    • https://jotevugujuz.weebly.com/uploads/1/3/4/6/134675951/689a31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389095/normal_5f94128bad417.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382790/normal_5f8d485368cda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410989/normal_5f98ec96e9be3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388178/normal_5f8fd4bd8bfc3.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/ragejufa/personal_history_statement.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/solid_liquid_gas_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/innovation_defined.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_off0000ad84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD84 5472 bytes
SHA-256: a3baa89dfb9421a59943547ea17b51a6850f88e70353e39393abfa0e0e749ff9
font_01_sfnt_off0000c008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC008 10008 bytes
SHA-256: 090728fb6514e41c1ced9abfcb3e8077534ecd148c2b7d1671b1b72426d438d4

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