Malicious PDF — malware analysis report

Static analysis result for SHA-256 de2fad2eef6a0038…

MALICIOUS

PDF

67.9 KB Created: 2021-02-23 22:00:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4d25e9a486e3c3ae7b03d9902341074a SHA-1: 046564e3c62d23a22eadf47f8c70ea74be2a7db8 SHA-256: de2fad2eef6a003820cd61064b684cde90771dfb1769d27df71e34fd5746526e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/123?utm_term=death+note+anime+english+dub+cast PDF link annotation
    • https://cdn.sqhk.co/pugijuzo/ahcwhcd/shaolin_kung_fu_pants.pdfIn PDF document text
    • https://fivubiforozoxi.weebly.com/uploads/1/3/4/6/134676017/lopewiloxamu.pdfIn PDF document text
    • https://lurofigugibax.weebly.com/uploads/1/3/4/6/134686006/rujinefazopu.pdfIn PDF document text
    • https://milelujip.weebly.com/uploads/1/3/4/8/134861654/f650b3e8dd.pdfIn PDF document text
    • https://generixa.weebly.com/uploads/1/3/5/3/135350481/jawigix-dagukabusin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446494/normal_6023ad0392d45.pdfIn PDF document text
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/minikizekunu-nuwefakubid-jusekazi-lezuwefilevep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489722/normal_60288da9def81.pdfIn PDF document text
    • https://cdn.sqhk.co/raxinosi/gciiwid/49395774155.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407316/normal_5fdd07a1c46f3.pdfIn PDF document text
    • https://kunimagim.weebly.com/uploads/1/3/4/6/134608209/pepewujara.pdfIn PDF document text
    • https://vigekajabaka.weebly.com/uploads/1/3/4/7/134708837/454617.pdfIn PDF document text
    • https://fomimixa.weebly.com/uploads/1/3/4/7/134775862/gimovudex.pdfIn PDF document text
    • https://duzonaxur.weebly.com/uploads/1/3/4/0/134012347/nejij_mufulojefe_roborun_xejusafozoli.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lemujiv.epizy.com/background_png_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBB 5396 bytes
SHA-256: b82d9904d6dfbeb4c8e926c2ec1c4459f5d2f11342d6583c971baa6419291f54
font_01_sfnt_off0000ddf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF3 10916 bytes
SHA-256: 92970bc76e41b6ed436f01e333e8ae000560a172eeb43569defaa895c6059832