Malicious PDF — malware analysis report

Static analysis result for SHA-256 d744b53723226399…

MALICIOUS

PDF

70.0 KB Created: 2021-02-27 13:19:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e694a1385a097ffb7e17245bf6b1901 SHA-1: 70945082107a14ea462a5d87fb6b01bd45bafb34 SHA-256: d744b537232263990a98dc80e3fa691ee748525a517f9823ae28cc9a4a700478
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a malicious site. 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 as a phishing lure, potentially leading to further exploitation.

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://botokaw.ru/123?utm_term=3d+animation+apps+for+pc+free
    • http://desokore.medianewsonline.com/8918805237.pdf
    • https://lipofodimeduwep.weebly.com/uploads/1/3/0/8/130813747/ebf012c1b08.pdf
    • http://wewogokuwidu.mywebcommunity.org/kedidefuxalupeba.pdf
    • https://vidokabotofasi.weebly.com/uploads/1/3/4/8/134868814/fezazedokexuso.pdf
    • http://dizurexemubegog.mygamesonline.org/bepik.pdf
    • http://mekujoviwe.mypressonline.com/83727889846.pdf
    • http://jokojujut.medianewsonline.com/boating_knots_bumpers.pdf
    • https://bifitulodagox.weebly.com/uploads/1/3/6/0/136081839/09830b.pdf
    • https://tagekoworiz.weebly.com/uploads/1/3/4/0/134016686/27cf029a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/waxegatulo/furanepidexewaduzoxob.pdf
    • https://s3.amazonaws.com/jixeremipet/bounce_game_cheat_codes_for_android.pdf
    • https://s3.amazonaws.com/rerinago/hms_victory_rigging_manual.pdf
    • https://s3.amazonaws.com/kiguteperilodu/bikopulumobatutodok.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4f1.bin
0d7a3372865fa7bbe8598b298d32ea127cad95eeca1dc4f24347bc5f5f08cdfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F1 5340 bytes
font_01_sfnt_off0000e705.bin
af91226714421ccc0ded8be236f8f79db9f27854ee14addbc248d33de3562df6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE705 10756 bytes

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