Malicious PDF — malware analysis report

Static analysis result for SHA-256 3af008d76e5a7dc5…

MALICIOUS

PDF

71.1 KB Created: 2021-02-22 07:17:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8b1160c6196e5767031fe08c55201343 SHA-1: 92a8caa633f2281608b7df714a9cacb0bdfd1b3d SHA-256: 3af008d76e5a7dc56be6b4d2f2149efc7a8bbf6bb7dd7bbd6a0e4c036fbe3584
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/wix?keyword=otto+d%2527ambrosio+guitars PDF link annotation
    • http://cmb-eco.com/703582490659zjpf.pdfIn PDF document text
    • http://barbanapoli.moscow/dejazusigi3sk.pdfIn PDF document text
    • http://sadovik.me/meaning_and_definition_of_joint_stock_companyqv2lp.pdfIn PDF document text
    • http://tryadasert.online/96019168031iwq6p.pdfIn PDF document text
    • http://precabinets.xyz/96198334670mdi8l.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387704/normal_600e89fabd1a0.pdfIn PDF document text
    • https://xanuzejo.weebly.com/uploads/1/3/1/6/131637194/zevategipenawibe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380854/normal_602b4a7b62ae5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485161/normal_5fc5843585cd6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390350/normal_5fe67959a81be.pdfIn PDF document text
    • http://porn77.design/vinodujpzkl4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473954/normal_5fedbd09b43e3.pdfIn PDF document text
    • http://simultaneously.space/77978104063rn4b0.pdfIn PDF document text
    • http://itrom.fun/8349167996ou2nv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/nj_transit_bus_schedule_193_willowbrook.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/how_to_reset_check_engine_light_2012_dodge_avenger.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_off0000dbb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB0 5316 bytes
SHA-256: 53870c412d970b2f5267f7be49fd973b52a687f63c7087df91203a084a816803
font_01_sfnt_off0000eda6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA6 10024 bytes
SHA-256: b5b46ea3bd1aeef5cd60eeb751ff183385cb1e594828972969a0a2d5cbd74f81