Malicious PDF — malware analysis report

Static analysis result for SHA-256 67cfd54617b47f15…

MALICIOUS

PDF

64.9 KB Created: 2020-12-28 21:04:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 226b3bf981d36d69b08b091691868891 SHA-1: 75aded05d464f772411aa8f4ba0e4fb002bb9898 SHA-256: 67cfd54617b47f1570642fa42b59c2f651222a3aefebdb2a5a70351d2fc853da
154 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, and contains a critical heuristic firing for a PDF redirector link. The embedded URL 'https://ggtraff.ru/strik?utm_term=puppet+soccer+champions+league+2014' is a strong indicator of malicious intent, likely leading to a phishing page or malware download. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ggtraff.ru/strik?utm_term=puppet+soccer+champions+league+2014 In PDF document text
    • https://tilafiranude.weebly.com/uploads/1/3/4/3/134314128/xakikuwu-titumewifa-garuvepeto.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367617/normal_5fe6a8a4998e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407070/normal_5fad9869970d6.pdfIn PDF document text
    • https://neverazu.weebly.com/uploads/1/3/4/9/134901342/1362695.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/OFjinjh/meteor_impact_nigeria_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444630/normal_5fa6b4cd54d6f.pdfIn PDF document text
    • https://cdn.sqhk.co/zixajofazadi/Sgiohiv/98369122714.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/vasofirida/answer_me_1988_ep_1_eng_sub.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/pilorunemaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/payback_2_apk_cepte_indir.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_off0000be09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE09 5760 bytes
SHA-256: bedb072658fbdbecd3d9c53579e2dc345794b435ce6d7cef10b15cce47a5e297
font_01_sfnt_off0000d185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD185 11428 bytes
SHA-256: cfe00c2b5909b07fe0dc3d92436669f3a264f7497fd6e1f81b30a4f5b8a12f51