Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00789ab2d714b73…

MALICIOUS

PDF

68.5 KB Created: 2021-03-03 10:40:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1b52ebe67b84afe4b6f88d90fd289708 SHA-1: bccffc9b9079ea7a7b1519353297617c57dc1e5d SHA-256: e00789ab2d714b73b02578abc8d33490b0f8004e20ba9f0156bda916dc88f6c8
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://lozipotod.ru/award?keyword=washington+gas+fcu+login PDF link annotation
    • https://kapojisu.weebly.com/uploads/1/3/2/6/132696117/nigaparasupor-lojivugetusos.pdfIn PDF document text
    • http://mabay.fun/6771862461346p49.pdfIn PDF document text
    • https://jenazikefu.weebly.com/uploads/1/3/4/0/134017187/putim_mozez.pdfIn PDF document text
    • https://jalamipitifem.weebly.com/uploads/1/3/0/7/130738892/520863.pdfIn PDF document text
    • https://ponigeje.weebly.com/uploads/1/3/0/8/130874529/c7e6c7c.pdfIn PDF document text
    • https://gemexufata.weebly.com/uploads/1/3/0/7/130739895/bidamenepuserekoku.pdfIn PDF document text
    • https://fabavowugofafif.weebly.com/uploads/1/3/4/5/134591931/gavizeka-ferab-residovif.pdfIn PDF document text
    • http://bestunew.xyz/puzezagupiligigarbino.pdfIn PDF document text
    • https://gijopufiri.weebly.com/uploads/1/3/1/3/131384250/c08c6f960.pdfIn PDF document text
    • https://vatilevemuwaji.weebly.com/uploads/1/3/1/4/131453872/78a3539fcfa6.pdfIn PDF document text
    • http://avlto.best/fodmap_food_list_ukdhjcl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410722/normal_5feba3bdb7c8f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF1 5060 bytes
SHA-256: 36aa7880fedf8d5a0d2aa296453d2f4fb4fd1e712d13a7f2c71da7c8827845b4
font_01_sfnt_off0000e042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE042 10852 bytes
SHA-256: 8ffb75b5f9dd1f2b9e9562232797a467f9d56895f7e5f31e36fd8cf79b34270c