Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f6e034632368d30…

MALICIOUS

PDF

90.9 KB Created: 2020-12-24 05:54:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: cfc47c208fa7d193dd20269315c0eb30 SHA-1: 98252a81e60e54f425820a9e445a8666f44c825b SHA-256: 1f6e034632368d30a827e69975176fcb5f59a55ce80266c5afbb7d435f5f19a2
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely intended to phish or deliver malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=cheats+for+sims+4+child+skills PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419836/normal_5fbbdda15b96e.pdfIn PDF document text
    • https://cdn.sqhk.co/guletema/jdXggij/nottingham_city_hospital_ward_names.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408713/normal_5f9e508a583ba.pdfIn PDF document text
    • https://cdn.sqhk.co/mepetiruzi/enjehCX/stiletto_nails_long_white.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501204/normal_5fc5b3a626a4c.pdfIn PDF document text
    • https://cdn.sqhk.co/balekunu/bihgeYQ/hepatic_flexure_syndrome_and_anxiety.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446158/normal_5fdb71d165eeb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/475598ce-eb95-4c8a-8c7a-8d515194bce5/non-homologous_end_joining_repair.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e03cd12-7cb7-4bad-850e-961eb8bc2a48/recognition_proteins_in_cell_membranes.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/17600593392.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/everglow_coldplay_piano_sheet_music_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a90af90-f86e-4fc4-898e-1232a08307a2/benaw.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_off00012534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12534 5320 bytes
SHA-256: cd8b4bf2e96578ec99fd86d21ad72e5f3d38e6733ca97fc8cdbf53ee85e65173
font_01_sfnt_off0001371b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1371B 12156 bytes
SHA-256: 98b650a22261da6f701104801febdd8b7fe6b157f7e1304c67696af501302033