Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9b02ee5be075041…

MALICIOUS

PDF

83.1 KB Created: 2021-03-07 10:47:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3b43257b5e0659f3df4fcfbb49473064 SHA-1: a3f5082cc594f7254e46c0dd8bd79f794937ea40 SHA-256: a9b02ee5be07504111ecb9d8404026263594491803425bf1f6ba9bfad97faeb4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://pelibifir.ru/award?keyword=how+to+add+memory+to+lenovo+t430 PDF link annotation
    • https://cdn.sqhk.co/pujapipiwat/aichhgg/my_lips_are_sealed_meaning_slang.pdfIn PDF document text
    • http://vubunojetufofi.iblogger.org/word_resume_template_modern_free.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/fJia2Ap/dining_room_table_sets_cheap.pdfIn PDF document text
    • https://ludopugadataz.weebly.com/uploads/1/3/4/7/134709803/goraxojowadeboreni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388157/normal_60112ef3efcfd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383446/normal_5feb9469ee217.pdfIn PDF document text
    • https://cdn.sqhk.co/feduvefas/igJjiJc/rejil.pdfIn PDF document text
    • http://fejekadiwoxobiz.getenjoyment.net/89661122748.pdfIn PDF document text
    • http://xariketixagat.mypressonline.com/fapamozi.pdfIn PDF document text
    • https://renudufodajofi.weebly.com/uploads/1/3/4/8/134884992/namasipifibigipumuv.pdfIn PDF document text
    • https://xidoferowugefu.weebly.com/uploads/1/3/4/3/134348033/1225976.pdfIn PDF document text
    • https://cdn.sqhk.co/zokosofu/hhjdBHq/48489897468.pdfIn PDF document text
    • https://kesiwupi.weebly.com/uploads/1/3/1/4/131407351/rixuxelujabelalukas.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/92584282879.pdfIn PDF document text
    • https://jifalutisapore.weebly.com/uploads/1/3/4/7/134772579/6343241.pdfIn PDF document text
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/a3edb7db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384167/normal_5fe122e80aa83.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://susijul.rf.gd/is_oxford_comma_ap_style.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_off00010aef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEF 5400 bytes
SHA-256: fe5e5311cdca6db4e443f5c30dda1dd944b89a8fef20e1c5a599aabd924743a3
font_01_sfnt_off00011d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D57 9912 bytes
SHA-256: 3c23b92d3eee5ac5ef39f28d6fb57c2fa95a41fcc6806e993cea1fc62d157f38