Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1f0e7212df6b363…

MALICIOUS

PDF

69.8 KB Created: 2021-02-27 12:26:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e99936a9e76998ccc1417e843c5ef762 SHA-1: 93c984a47fb1730387b3bf71783fa49da73c2bf2 SHA-256: d1f0e7212df6b363d1e9a7817df95dd8ed25b14e815987b4c2c1ef01b14f88b1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://vilenefex.ru/wb?keyword=omron%20tri%20axis%20pedometer%20reviews PDF link annotation
    • http://chambrely.xyz/82191268226tynqx.pdfIn PDF document text
    • https://cdn.sqhk.co/tedalome/d57oArE/ejen_ali_emergency_apk.pdfIn PDF document text
    • https://vususutuf.weebly.com/uploads/1/3/4/6/134634118/vozisex.pdfIn PDF document text
    • http://istlan.fun/best_scale_for_weight_watchers_appjahht.pdfIn PDF document text
    • https://cdn.sqhk.co/wowobavukelo/eFUtjcy/14828885869.pdfIn PDF document text
    • https://xirovule.weebly.com/uploads/1/3/4/7/134749068/a9a235b390f19bc.pdfIn PDF document text
    • http://gufutaca1.xyz/35952496980v0g1t.pdfIn PDF document text
    • https://fizegebukuri.weebly.com/uploads/1/3/1/4/131453213/rokibi-jikigukaforuz-tiresele-wobaxezakigeb.pdfIn PDF document text
    • https://rarasaxemog.weebly.com/uploads/1/3/4/6/134611000/3200324.pdfIn PDF document text
    • https://fobepuwup.weebly.com/uploads/1/3/1/0/131070598/wirupivawa-kodilukowok-kovijivuvuwoz-pogovun.pdfIn PDF document text
    • https://cdn.sqhk.co/rifelefiw/hfCLhji/samsung_members_app_beta_program.pdfIn PDF document text
    • https://bovuxugiz.weebly.com/uploads/1/3/4/9/134901291/mijipikuligim_lizere_jitaferagej_jojuju.pdfIn PDF document text
    • https://cdn.sqhk.co/lijipatalenu/s3heZjd/wedigisogepavufunukedira.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vufebadavoga.epizy.com/how_much_does_an_engineer_make_at_apple.pdfIn PDF document text
    • http://widevuwototavu.rf.gd/mtg_amulet_titan_sideboard_guide.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_off0000d0dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0DC 5320 bytes
SHA-256: a8af3c5236b2f81f3538f6dd1fd03e4811f7a625bcd21aacaab4bc671b58a17b
font_01_sfnt_off0000e2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E9 11384 bytes
SHA-256: 990de08d4ec7d39b54176f1462c087a0b98ec6a6ff8ae3eeabde560e77799fba