Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e8c8cfc250bb64f…

MALICIOUS

PDF

71.9 KB Created: 2021-02-25 03:30:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a92b3c89ce47320c7136f5616f5b3624 SHA-1: b8403aae36da356b6e5d7d3e6f7bf0826b19367f SHA-256: 1e8c8cfc250bb64faaaf28d4261930c5b0dce569dda20c01cb8f5203bd2b457c
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://bologen.ru/award?keyword=do+not+pray+for+easy+lives PDF link annotation
    • https://zimuvudiredefux.weebly.com/uploads/1/3/2/7/132710782/2015710.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/ytwja8D/4061076264.pdfIn PDF document text
    • https://rikulaseno.weebly.com/uploads/1/3/4/4/134471776/ritidime-niwedir.pdfIn PDF document text
    • http://smartbright.club/injustice_2_full_roster_dlcjgc52.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/ig3Rpcv/94423396577.pdfIn PDF document text
    • https://xikisujegowo.weebly.com/uploads/1/3/1/8/131856166/219713cd9.pdfIn PDF document text
    • http://trenolgia.buzz/5366276753808ps6.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/blackmagic_video_switcher_atem_pro.pdfIn PDF document text
    • https://cdn.sqhk.co/bumegukomuza/hcNghjb/68120140980.pdfIn PDF document text
    • http://rubyshup.space/sokowuzutopageyjag5.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/sejatutuzaruzase.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/20093884383.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/hifjeU5/61032967719.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/mowinobewojatowu.pdfIn PDF document text
    • http://mscredit.info/5011345494heyt5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vunonam.atwebpages.com/gamawobopikofafetafeju.pdfIn PDF document text
    • http://gevejonitu.onlinewebshop.net/what_is_the_longest_big_nate_book.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_off0000dc8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC8B 5056 bytes
SHA-256: 1f1f225b9dec15a675f2d71c31f36835421f3c51c6953de5c13e84e0fa08feca
font_01_sfnt_off0000ede3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE3 10872 bytes
SHA-256: c6b4ec891519867040612e5a4697c8d971890bda6ba06c751f788bd9abf9675a