Malicious PDF — malware analysis report

Static analysis result for SHA-256 764740f456586aea…

MALICIOUS

PDF

65.8 KB Created: 2021-01-26 06:57:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 29a9e04a9bb766021a3c2de3bab0a8ee SHA-1: 86d6f6f8d87d85220cd222a809dc9decf8438acb SHA-256: 764740f456586aea148e1cfab382a2dd302e5a2dcc4ce94e2dcd0183d4fa70b4
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://jottigo.ru/shook?utm_term=barber+shop+haircut+game+online PDF link annotation
    • http://reactivaperu-viabcpi.com/4556857363aigv2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376127/normal_5fe17853f4048.pdfIn PDF document text
    • http://tortomsk.ru/65541545926u5xqu.pdfIn PDF document text
    • https://cdn.sqhk.co/girolivudafo/icjhhhj/vufelejajativatuk.pdfIn PDF document text
    • http://saratov.ooo/bidekopewusowufolefacfp.pdfIn PDF document text
    • https://ruwefenoref.weebly.com/uploads/1/3/0/7/130739117/3547389.pdfIn PDF document text
    • https://ruzuxopamekegi.weebly.com/uploads/1/3/4/7/134748505/tubutibonajuzefa.pdfIn PDF document text
    • https://bolamowoxuwev.weebly.com/uploads/1/3/3/9/133997192/2c54e7b1a9b0188.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416811/normal_5fd22319dd405.pdfIn PDF document text
    • http://evakuator-uga.ru/boo_berry_cereal_barsevwyo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402953/normal_5fdc27b4bb4e7.pdfIn PDF document text
    • https://cdn.sqhk.co/bepotedaxus/hdgcgAt/34863685417.pdfIn PDF document text
    • https://cdn.sqhk.co/zipodumup/gdhjyia/tj_maxx_near_me_hours_of_operation.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fojiguxojed.epizy.com/kidusuje.pdfIn PDF document text
    • http://tenisofirurefed.rf.gd/bangkok_metro_map_2017.pdfIn PDF document text
    • http://wixulolefafela.rf.gd/voice_synthesizer_for_android.pdfIn PDF document text
    • http://mejesikiwabez.epizy.com/another_day_of_sun_sheet_music.pdfIn PDF document text
    • http://nemabufebuxabo.epizy.com/vowab.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_off0000c2a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2A6 5536 bytes
SHA-256: 1581163a33d2d01826fefeba6c2e98ce4082c3e24de505094dc935e93b64af33
font_01_sfnt_off0000d54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD54A 10840 bytes
SHA-256: 334661340962cfffa573532473b1f4d06b9a6f6d31324be0c53f1a76856ef165