Malicious PDF — malware analysis report

Static analysis result for SHA-256 0480f0c1c4d4998f…

MALICIOUS

PDF

72.1 KB Created: 2021-03-01 07:09:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e5859d9b52c9bfba1f5b9d1057889aad SHA-1: 98c120c2080b4c6f845796ecfcba45f5ef7ad135 SHA-256: 0480f0c1c4d4998f30f90f44a781409edc37ec9855f5cab85f954ee7cd674409
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
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://siximegam.weebly.com/uploads/1/3/1/4/131453251/xuvexulimanozibuv.pdf.
  • 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://jumiwimov.ru/award?keyword=consider+the+differential+equation+dy%252Fdx%253D-1%252By%255E2%252Fx PDF link annotation
    • https://cdn.sqhk.co/videgogaf/dEciijj/tutiwupasalejuvaket.pdfIn PDF document text
    • http://tifubuza.22web.org/new_album_song_2018_bhojpuri.pdfIn PDF document text
    • http://rodsfish.club/belling_built_in_oven_manualjdnxb.pdfIn PDF document text
    • https://siximegam.weebly.com/uploads/1/3/1/4/131453251/xuvexulimanozibuv.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/GuMNhja/65001974596.pdfIn PDF document text
    • http://katermore.ru/auto_call_recorder_app_uptodown8v4mq.pdfIn PDF document text
    • http://rokexulom.22web.org/plantronics_backbeat_pro_user_guide.pdfIn PDF document text
    • http://it50discount.pro/what_latino_gang_wears_greengdbt4.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabalero/hRghjef/71695236810.pdfIn PDF document text
    • http://ifeelgood.club/norse_mythology_names_and_meaningsgnje4.pdfIn PDF document text
    • https://cdn.sqhk.co/butiluluvuk/kicMjg3/94262388819.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nakepusigazu.epizy.com/sepazabujuzivibowigor.pdfIn PDF document text
    • http://mutifesojare.epizy.com/45954075455.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/3915881259.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/dallas_hoopster_briefly_crossword_answer.pdfIn PDF document text
    • http://waxusumuguk.epizy.com/garozikogatapazeva.pdfIn PDF document text
    • http://kewupuz.rf.gd/ingenuity_convertme_baby_swing_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/tommee_tippee_perfect_prep_cleaning_manual.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_off0000dbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAA 5544 bytes
SHA-256: 82bf2851f9c7fc324db4db76bd3cfc3f53cbd22eb7172b67fcbf2f3540a3ce4f
font_01_sfnt_off0000eea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA3 10580 bytes
SHA-256: f21e1c684fe912bba2502fd5baefdce2ec025c30b0e196a40818252eecc42019