Malicious PDF — malware analysis report

Static analysis result for SHA-256 72cf0e7dc424a9c7…

MALICIOUS

PDF

70.9 KB Created: 2021-02-07 08:00:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f78b091798f734460834232679c9814a SHA-1: 8a746c721c6374d7abcdaab563216e2f38f1c4ad SHA-256: 72cf0e7dc424a9c7ec9a1254a16224f9f5881213bbe4f7039eead45b0fbc8966
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/wb?keyword=makalah%20askep%20bblr%20pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370054/normal_5fcd21cdafd18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418567/normal_600c90410ab26.pdfIn PDF document text
    • https://fepazizagi.weebly.com/uploads/1/3/5/3/135345318/4710499.pdfIn PDF document text
    • https://cdn.sqhk.co/rowalulo/idhbzjd/coffin_dance_game_roblox.pdfIn PDF document text
    • https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/dba7c.pdfIn PDF document text
    • https://cdn.sqhk.co/ropikenetu/6HiefEn/ketepa.pdfIn PDF document text
    • http://malapiwo.66ghz.com/raati_tamil_album_song_masstamilan.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417213/normal_5fe4092837ce3.pdfIn PDF document text
    • https://cdn.sqhk.co/muzexeragod/fijjibM/vevokagofi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426549/normal_5fec0b93d063d.pdfIn PDF document text
    • https://tazidafojunuxu.weebly.com/uploads/1/3/3/9/133997245/noxaze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486220/normal_5fd8a10a67054.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://roxutudutupit.epizy.com/47941809162.pdfIn PDF document text
    • http://faxaxesaxejov.rf.gd/64057069868.pdfIn PDF document text
    • http://fepirag.epizy.com/wiximad.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_off0000d8d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D2 5340 bytes
SHA-256: 97f26d62c8d254f27fbe79aad8aaee617acf4bc07a9af3556be6c0a2c9237850
font_01_sfnt_off0000eaf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF4 10532 bytes
SHA-256: 42ec2bf79b7421d65f3bb92c22c5ad40df04b93a4dabf5205c8fa4d2645d41bc