Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2646e3b34d2c18…

MALICIOUS

PDF

65.8 KB Created: 2020-12-28 06:42:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 871b2afa8bb3b776912e40fdec9df3c9 SHA-1: 963dfae10e680b38c645acc57cf14a4022ee1770 SHA-256: 5c2646e3b34d2c1844336bb6c6591109e87fec17b27325cb136c69bf6a8d62c9
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to 'trafftec.ru', which is suspicious given the context of a phishing lure related to 'London city airport'. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for phishing or to download further payloads.

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://trafftec.ru/strik?utm_term=london+city+airport+facebook PDF link annotation
    • https://cdn.sqhk.co/rinilafexowi/8n5idVl/forbidden_racing_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xulawajikigi/ig5hgHr/37508096551.pdfIn PDF document text
    • https://cdn.sqhk.co/lukedivibeb/2bpgfic/extreme_digital_hr.pdfIn PDF document text
    • https://cdn.sqhk.co/luwiwaduna/VxQZczQ/sugezise.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/zokokamu/dixalexefisowot.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/acrobat_editor_trial.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/pinch_hitter_unblocked_66.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/los_9_dones_del_espiritu_santo_biblia.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/3271590711.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/17315154800.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/impossible_dream_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/vomikini.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/gallstones_formed_in_liver.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 4

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_off0000c255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC255 5184 bytes
SHA-256: 521609a5af6da779b4842680680394292fe71e361b6f391f90289e80307d26ff
font_01_sfnt_off0000d419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD419 10928 bytes
SHA-256: cad03288b3d571039c7108d85ee0cd89ef50006ff6d51632d83e92d790c0a27d

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