Malicious PDF — malware analysis report

Static analysis result for SHA-256 d13a9c113eb1994b…

MALICIOUS

PDF

67.7 KB Created: 2020-12-06 07:03:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 38b72690c7bedac964b7b5e2017ae57b SHA-1: d9cb60aa806557469ad082442f8ca50071d129c3 SHA-256: d13a9c113eb1994b966c4b9d750c59484b388a62b3315c237e2ba295da38735e
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://trafficel.ru/strik?utm_term=80+oz+to+cups PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4457561/normal_5fcb248be1152.pdfIn PDF document text
    • https://xoxatazafej.weebly.com/uploads/1/3/4/8/134861408/8897814.pdfIn PDF document text
    • https://gaxopekel.weebly.com/uploads/1/3/0/9/130969853/nisivum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450415/normal_5fa7fa59a1c4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421336/normal_5fbe345a5beb7.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/5fc51dbabdb33045eedd6f3b/t/5fcc0a572fa8bc6bcdd5d5d2/1607207513100/love._ly_app_free_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe2e773c6ccf69f328d645/1606299261490/98939713906.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0cc6dc14dfd36fef0f123/t/5fc0eca0145a8629dcd29195/1606479009968/34272701066.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b24c933b-d75f-49f0-8d9b-23a551a28c48/sewes.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc53b22bf71053ccb2c19db/t/5fcb158a0814be4f73e374e4/1607144845984/hockey_trading_cards.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/jaluxaxunariloxudub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/180c2e26-a356-44a6-993d-c138909d5889/97622040372.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5947b0b6b03258f5520ec/t/5fcb01b61ef6d1662fe71d87/1607139767747/89229586038.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6263b56e-8f0e-45f5-a76e-c349b3a48297/nuserototusirexipate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b44a73e-944f-4561-9258-4088ddd4bd65/mexovemekovux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c4432be-fa32-4901-b795-0dbd01ef3131/81100155248.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB9E 4880 bytes
SHA-256: 246d2965e6d4ba8362de5059309fc04777ed3ecfe46840c8e42b221bfa4e48ce
font_01_sfnt_off0000dc58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC58 11276 bytes
SHA-256: 24bfd7a5556106d5e32a2e8f5cc2e7858862b3878ec69f131e6dba14c575db1f

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