Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9ee44be8fb0de23…

MALICIOUS

PDF

84.1 KB Created: 2021-03-03 06:51:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 415a89663685eea2ea86ccf46f108cc4 SHA-1: b248f13564baddf68a087c37a18615cdf654fcef SHA-256: d9ee44be8fb0de23a5d47257c8c2a533649a7e83d2237b8959590714994d9dc8
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://nipisod.ru/award?keyword=bissell+vacuum+cleaner+belt+keeps+breaking PDF link annotation
    • https://cdn.sqhk.co/boxokozofe/icvmPbG/tewuminawaxegu.pdfIn PDF document text
    • https://malitorenifavo.weebly.com/uploads/1/3/4/0/134017021/derapusituvuvadowodo.pdfIn PDF document text
    • https://fiwobezamarevev.weebly.com/uploads/1/3/2/7/132740324/zepoja-puvuwapifuzu-tidis-rewaminu.pdfIn PDF document text
    • https://cdn.sqhk.co/laripikiwafo/szhcPid/89210124455.pdfIn PDF document text
    • https://cdn.sqhk.co/tezikegoj/ekcEjgc/50273150526.pdfIn PDF document text
    • https://cdn.sqhk.co/vizakifito/9hhibgj/26707983509.pdfIn PDF document text
    • http://reduslim-sito.site/936621162561nlu9.pdfIn PDF document text
    • https://cdn.sqhk.co/davusegeb/iggggFg/zirelerixupugomesuka.pdfIn PDF document text
    • https://cdn.sqhk.co/gizoxemovefi/jxagjii/dragon_quest_11_casino_jackpot.pdfIn PDF document text
    • https://loguxofe.weebly.com/uploads/1/3/0/7/130775118/c63bf558ffaf75.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/5hgKagj/world_war_2_zombie_movie.pdfIn PDF document text
    • https://refugisedenofa.weebly.com/uploads/1/3/1/3/131380322/logilesuzatinedirori.pdfIn PDF document text
    • https://cdn.sqhk.co/vakenuda/fD659he/goziv.pdfIn PDF document text
    • https://webegerux.weebly.com/uploads/1/3/4/7/134759049/4caab16427d.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/bepukuba/shooting_games_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/76390389376.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/45581640338.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/82804031363.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_off00010c05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C05 5564 bytes
SHA-256: e1b4dac177d6a44825df37ad0ea1a5a41451e263f6bc9a142316571810fa5b4e
font_01_sfnt_off00011eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EEC 10660 bytes
SHA-256: bcac76767b5b8f98a01183dad8161f7e1e13fb3dbec84695749af6bd6b52d60f