Malicious PDF — malware analysis report

Static analysis result for SHA-256 d16225c0dc10ad92…

MALICIOUS

PDF

73.2 KB Created: 2021-02-14 15:43:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cfc60632209701d7f87141eabc499c0e SHA-1: 65e9e1115aefb11b4330bd3e5ce1bb5f1749e623 SHA-256: d16225c0dc10ad92b99124a84b7e577965fe40bb113fe5f50465231f38caa52d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=essay+contest+2020+india PDF link annotation
    • http://losmopaka.site/zoxapovomesawoniguvafa4aox7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381971/normal_5fe595ff284d3.pdfIn PDF document text
    • http://zazonowipudu.66ghz.com/cyber_security_policy_guidebook.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/mobikawelulupnj9c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448539/normal_600c65ae7d2a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416125/normal_5fcdfd79a6875.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496582/normal_5fd76efc5dc98.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465389/normal_5fe235d33880e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383577/normal_5ff815f9ca63c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505096/normal_5fe717b597200.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383922/normal_6028b1f7d550d.pdfIn PDF document text
    • http://kugimanuvo.iblogger.org/dugekibulubimigolil.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/potamotaz/groundwater_contamination_in_india.pdfIn PDF document text
    • http://birijigasexow.epizy.com/mahjong_special_hands_cheat_sheet.pdfIn PDF document text
    • http://gejiregi.rf.gd/bollywood_movies_2019_in_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/marvel_future_fight_leveling_guide_2018.pdfIn PDF document text
    • http://bumerezuwo.epizy.com/70420959106.pdfIn PDF document text
    • http://litaxuroba.rf.gd/akkad_bakkad_bambe_bo_full_song.pdfIn PDF document text
    • http://fametofet.rf.gd/papilas_filiformes_inflamadas.pdfIn PDF document text
    • http://bipofixijanafuf.rf.gd/patchy_beard_trimming_guide.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_off0000e136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE136 5136 bytes
SHA-256: 6a4c262c4b957c7db2a3f74f2b11e0524a45d86fd7f455e8ee60c668c19a28d9
font_01_sfnt_off0000f2ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2CE 10672 bytes
SHA-256: f59fcfe1faf10bcd23e41e86b053f7fe99f2d8019b2d6ff865235e6d1a0f8c5b