Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d6ee05c21f84f0f…

MALICIOUS

PDF

65.8 KB Created: 2021-01-25 18:25:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c773e7dd294edc282e8facab3e8e4e98 SHA-1: c7623bb0cd686664b97abb69350d84c7aa268575 SHA-256: 6d6ee05c21f84f0f1a7754c38b6460be547d9e83d407e473651f8c66ad36cb9a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading further malware. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the presence of embedded URLs and the overall detection profile suggest a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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/123?utm_term=secondary+math+2+module+6+answer+key+6.10 PDF link annotation
    • http://english-10.site/757597493310npws.pdfIn PDF document text
    • https://cdn.sqhk.co/gogoturowib/IMgeFAm/44318479876.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404990/normal_5fc97b9fd8224.pdfIn PDF document text
    • https://cdn.sqhk.co/zidulibu/fjb6Plt/kung_fu_commando_2020_new_fighting_games_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/libarazituw/icgjiaw/pixel_3a_xl_force_restart.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379855/normal_5ff0b10d2cc3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454045/normal_5fcae50569494.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481273/normal_600899c785079.pdfIn PDF document text
    • https://cdn.sqhk.co/figakeves/jikijhb/armageddon_chess_rules.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485942/normal_5fd71f6ed5265.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/gozilum/tutugirovowowedeganatulif.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/kh3_adversaries_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/burning_soul_worker_gear_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/jarukekulolepim.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/dilixotovevezexido.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/bruce_lee_images_hd_free.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_off0000c3ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3AD 6052 bytes
SHA-256: 1b0bc99686350102dde94793d73300530ddba930b9a57f2ffd5045029428aaac
font_01_sfnt_off0000d83f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD83F 10036 bytes
SHA-256: f396b1043766a64e2b7f9ff4644e5de0c9f0cd3aa5c7519a83958baf7b10fc41

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