Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f5448d98608b781…

MALICIOUS

PDF

72.5 KB Created: 2021-03-03 14:43:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 64350c49a6765f9c8a345d16168bbc72 SHA-1: e476c7f18d3d76d9ff732c213f071bfb7ce98ad4 SHA-256: 2f5448d98608b781e261f8375fec39cf4d22e3428f4f46473e3109ec81363005
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 9

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Fake encrypted/secure-document view lure high SE_ENCRYPTED_DOC_LURE
    Document claims to be an encrypted or protected file that must be opened through a 'secure view' link, and the action link uses deceptive infrastructure. This is the secure-document credential-phishing carrier: the page imitates a secure-mail / document-cloud gate while the link leads to a harvesting site. action link to abused redirector.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://pelibifir.ru/award?keyword=oster+clipper+customer+service PDF link annotation
    • https://nuxagaselupig.weebly.com/uploads/1/3/4/0/134016775/kivanurakefaxi_lawamunazekik_nemijasugesef_vuxikuz.pdfIn PDF document text
    • https://bizugejukuvav.weebly.com/uploads/1/3/4/3/134322279/vosisaxonexisun_wimufokupeka_kaguxuz.pdfIn PDF document text
    • http://zutolewe.mywebcommunity.org/how_to_thread_bobbin_on_singer_simple.pdfIn PDF document text
    • https://bewapuvin.weebly.com/uploads/1/3/1/4/131453684/8984094.pdfIn PDF document text
    • http://reduslimitaly-official.website/fluid_ng_pro_apkvnflf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418166/normal_5fc67a5cdbdaa.pdfIn PDF document text
    • https://vigusukababimer.weebly.com/uploads/1/3/4/8/134881512/dobojuvoda-vidugobuvufamon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369776/normal_5ffd995026a08.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/rofawewazo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497071/normal_5fd3157eb5328.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493198/normal_600050ca234f9.pdfIn PDF document text
    • https://cdn.sqhk.co/widiroje/iaiitu2/fishing_pole_holder_that_sets_hook.pdfIn PDF document text
    • https://fugogifozu.weebly.com/uploads/1/3/4/8/134888696/mapudotejagezu_risawos_zinezow_wenivinare.pdfIn PDF document text
    • https://cdn.sqhk.co/wuseguwe/heicjeO/riliz.pdfIn PDF document text
    • http://cethq.xyz/1997_honda_shadow_1100_battery_coverfp4zk.pdfIn PDF document text
    • http://lukisasore.mywebcommunity.org/41378089111.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e04e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE04E 4956 bytes
SHA-256: 97b1cb219e7e8d424062f5400e6cc9e1b2e76fbb53a131c1fc42bf67181d4bb7
font_01_sfnt_off0000f11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11C 10568 bytes
SHA-256: 9ef338cbcff94e80ca638c94cbace66c184c20abc3d202bf6ef157cc28a5fdd4