Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed885127519b0d98…

MALICIOUS

PDF

76.7 KB Created: 2021-02-07 18:45:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 88c0b2f7ba3d5d214a0fd6f4c087b57e SHA-1: cf5f099873d50fc70888aa59d5e0384eb53f10c0 SHA-256: ed885127519b0d98fb452f33e2e6b225824ab1492f41ed68529c5d25f728ac36
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://baarspo.ru/aws?utm_term=auto+login+website+android PDF link annotation
    • http://helplnstagramcontact6088756.com/bovojesexibowelub5kmf.pdfIn PDF document text
    • http://timelessdecorum.com/implosion_mod_apk_free4jyu4.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/class_12_flamingo_deep_water_question_answersguj45.pdfIn PDF document text
    • https://zavowije.weebly.com/uploads/1/3/2/6/132680855/4554307.pdfIn PDF document text
    • https://xibupofuku.weebly.com/uploads/1/3/5/3/135306475/f66e32c545e.pdfIn PDF document text
    • https://cdn.sqhk.co/gorokipo/ibgijco/gubabaranilozunawux.pdfIn PDF document text
    • https://cdn.sqhk.co/gimexigerub/Jo2ijKf/learn_python_for_data_science_online_course.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458412/normal_5ff96f0ad2c0c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495271/normal_60039c3752f1e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377925/normal_5fc71b483fa01.pdfIn PDF document text
    • https://cdn.sqhk.co/ganidabizi/c7yWNhf/nike_run_club_facebook_connection_error.pdfIn PDF document text
    • http://topcreditreport.info/best_android_emulator_for_windows_108o5pq.pdfIn PDF document text
    • http://logvoz.ru/26808758047rko86.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/ekiihgQ/31898315004.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jofawapedoguw.rf.gd/campursari_caping_gunung_koplo.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_off0000eba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA9 5216 bytes
SHA-256: 06223e358c00afbcc86e16975bbdddc0f3c58163e0e1333c369e482138b878f7
font_01_sfnt_off0000fd81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD81 12588 bytes
SHA-256: f8938b59fc94a08f6519154a4ed4ba368eb5287609c28481b9ed3effe8a052fe