Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d44a9fa7fd6ef3a…

MALICIOUS

PDF

140.4 KB Created: 2020-12-05 19:45:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d825a18f720296acc66f7ac9fef1123 SHA-1: b886b74da57734f73fb6190a03872e191f5ad8db SHA-256: 3d44a9fa7fd6ef3a8be08547c8dd51c652bf8d6db9186fb332c385dbf1e1d54a
154 Risk Score

Malware Insights

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

The PDF contains embedded URLs, with one specifically identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary malicious URL identified is traffmen.ru, which likely serves as a lure to a phishing site or a malware download. No scripts were extracted, but the presence of malicious links is sufficient evidence of a phishing or distribution attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9038

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/aws?utm_term=ak+47+ki+full+form
    • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/6240334.pdf
    • https://munerotilaxamo.weebly.com/uploads/1/3/4/4/134476206/segajidesex-buxotukurariv-kixezirefumod.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdef429d793648405372bd/1606283075183/38115097825.pdf
    • https://s3.amazonaws.com/bevekizadoxuj/fraction_addition_and_subtraction_worksheets_year_6.pdf
    • https://static1.squarespace.com/static/5fbfd3c824b06a7eb3f8da22/t/5fc0f4a4fa04221c7141f8dc/1606481060898/sudasubisa.pdf
    • https://s3.amazonaws.com/lorugipopuxe/komok.pdf
    • https://static1.squarespace.com/static/5fc6b266bda9c57a97e6b58e/t/5fc7f46e95494a73ba4c08aa/1606939758807/46583852585.pdf
    • https://s3.amazonaws.com/tipikaxe/siferafedu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001de9a.bin
7cf4bde1ec95be6a28c836210c7f6b7abaa6761bde782e2213b22af65caf2903		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DE9A 4744 bytes
font_01_sfnt_off0001eebc.bin
e25e618a602a0d31cde7f51f81227dc95130c939daa52ad5d8fe69c618147d5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1EEBC 18868 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.