Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f3c0b93100e16f…

MALICIOUS

PDF

70.5 KB Created: 2021-02-14 19:27:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 45f9664e698e6b31acbe1fc4ab6bb888 SHA-1: 1546f9cfb0ccb543ce68db833bff75cf78a4fe1a SHA-256: f0f3c0b93100e16ff7e8f4a82cbb1400c3e153fe0fd06d1ce5c7df3a5852500f
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://bologen.ru/wix?keyword=super+mechs+apk+mod+unlock+all PDF link annotation
    • https://pupowoxixibigi.weebly.com/uploads/1/3/1/4/131438439/e94306.pdfIn PDF document text
    • https://galewijukinez.weebly.com/uploads/1/3/2/6/132695540/rufebobepofimi.pdfIn PDF document text
    • http://cadenalia.com/wuzozixim8n2p5.pdfIn PDF document text
    • http://okclub.org/18043362374p17w1.pdfIn PDF document text
    • https://noxagutut.weebly.com/uploads/1/3/4/4/134483949/bd41de699.pdfIn PDF document text
    • https://sorudexene.weebly.com/uploads/1/3/1/3/131384015/birera.pdfIn PDF document text
    • http://ryursew.space/kipudus9wpb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471488/normal_6014deb38b83f.pdfIn PDF document text
    • https://kajubogoxin.weebly.com/uploads/1/3/0/9/130969430/7879183.pdfIn PDF document text
    • http://shop-you.xyz/h_and_m_clothing_store_near_me2859x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414357/normal_60183cc630796.pdfIn PDF document text
    • https://pememeva.weebly.com/uploads/1/3/0/8/130874233/zagedenalor.pdfIn PDF document text
    • https://devuxitimon.weebly.com/uploads/1/3/4/5/134596282/viwonajawi-nixabikexo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446166/normal_5fe706bcca4ef.pdfIn PDF document text
    • https://jakakatis.weebly.com/uploads/1/3/5/3/135323185/8baf0820b53cf1a.pdfIn PDF document text
    • https://tajezutudod.weebly.com/uploads/1/3/1/3/131398094/nokalixakevimexeva.pdfIn PDF document text
    • http://servisvds.ru/neo_geo_battle_coliseum_rom_atomiswave6m3pk.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/rurosaveruk/allshare_play_pc_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/46719993686.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_off0000d7ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7AC 5480 bytes
SHA-256: 5c6be668fe6ffd19261d7f4ad56bd550e49a3dd8ceffc7fa747a6e88fa906cfb
font_01_sfnt_off0000ea20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA20 10220 bytes
SHA-256: 8a17ee0acc6a041ac200bedac82a2b4edc3f1326ade677b0b287e8e31d35b501