Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3e26c297c06171d…

MALICIOUS

PDF

67.7 KB Created: 2021-02-26 12:05:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 67cfd98d07649168eaa631dca6b45f41 SHA-1: 1904498873154b17dd50b5fd23ce612868d24d79 SHA-256: f3e26c297c06171d7a68e3581a3aaa36b6fdcd58275d86a7fad93fb1ac4d40b6
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://leonvi.ru/wix?keyword=harrisville+loom+manual PDF link annotation
    • http://tehnopolis.org/sonny_and_cher_songs_crossword_cluev9vci.pdfIn PDF document text
    • http://weareanonymous.org/international_law_definition_by_oppenheimnf79d.pdfIn PDF document text
    • http://tesocoin.online/the_wisdom_of_psychopathscre3u.pdfIn PDF document text
    • http://itdiscount.pro/81312229084wvwlu.pdfIn PDF document text
    • https://fidojosamesevuf.weebly.com/uploads/1/3/4/5/134594598/wuwuxubimu.pdfIn PDF document text
    • http://hot-money.fun/wajanal74b4d.pdfIn PDF document text
    • http://doweryklkq.space/mulapoximilegov4tqtp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408721/normal_60256f0dbd64a.pdfIn PDF document text
    • https://lokawerimi.weebly.com/uploads/1/3/0/7/130776865/f3792244.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/gekojulog/inej_ghafa_six_of_crows_fanart.pdfIn PDF document text
    • http://womawujun.atwebpages.com/acer_aspire_v5-431p-10074g50_mass_spec.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/clipart_frames_and_borders_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/gizifimefekirupinuvavizu.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_off0000cef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF1 4852 bytes
SHA-256: b77bb02cb2a4ffb7e283639f1475db2585b89fc23a1982837b06529697c05e3c
font_01_sfnt_off0000df59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF59 10256 bytes
SHA-256: d467ef66770d946ac314aae4e23f47f4fc77ae8836af57a6680efe75a9e32719