Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3d94371f3886771…

MALICIOUS

PDF

69.9 KB Created: 2021-02-21 12:51:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2b451018e38af43c00df55782464464e SHA-1: f6e77ade169baee5461c3ae2458e7d0c760256b5 SHA-256: c3d94371f38867715cf0b6f7bafc022014a4c4df9013ac35a67f6315c7f85959
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wb?keyword=sullair%20screw%20compressor%20parts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376850/normal_6020cc772ed4a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371023/normal_5fc5afadc2d33.pdfIn PDF document text
    • http://urott-hu.com/honda_motorcycle_parts_list_australilkyg8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444371/normal_602f20ca89692.pdfIn PDF document text
    • https://gozowejikagigu.weebly.com/uploads/1/3/5/3/135345496/zamilupanazu-febagotaze-rokukipujiro-piketenarowewe.pdfIn PDF document text
    • http://getsalon.xyz/byod_policy_template_for_schoolscmcl4.pdfIn PDF document text
    • http://bosnoslovnoejelaniekupit.xyz/tuvodupolosuzubamexkfcw.pdfIn PDF document text
    • https://cdn.sqhk.co/noxuluni/hiahcQ5/74443157489.pdfIn PDF document text
    • https://duwaxitim.weebly.com/uploads/1/3/4/3/134312722/8181353.pdfIn PDF document text
    • https://botironuz.weebly.com/uploads/1/3/1/3/131380999/xuzurimulovusiz-vevapididovubik-lazepixero-tebunetax.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481270/normal_5fe2302145744.pdfIn PDF document text
    • http://rapegutuxipik.22web.org/captain_tsubasa_sega_game_free.pdfIn PDF document text
    • https://vexakoloninabi.weebly.com/uploads/1/3/4/8/134851928/2887419.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kezadovimitaw.rf.gd/tax_on_reportable_employer_superannuation_contributions.pdfIn PDF document text
    • http://tejoratu.epizy.com/6880117598.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_off0000d218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD218 5276 bytes
SHA-256: e32ef552817434673961a626f884e954bf21c68fa014f89229ac1e4cff2c87d3
font_01_sfnt_off0000e404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE404 11500 bytes
SHA-256: 7612874c0aab0c97cf590b559c4425107744585e3088c9bd01f0233c20a6ff5a