Malicious PDF — malware analysis report

Static analysis result for SHA-256 08e7a99ff03436f8…

MALICIOUS

PDF

67.4 KB Created: 2021-02-23 12:21:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: af3d94647686781da4e0ecebfea19db6 SHA-1: 37cb10c4ced7562dc51006e0823915448a52188e SHA-256: 08e7a99ff03436f81f54382c64f9a3212fcee87db8996685867961e9d1239e0f
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://bologen.ru/wix?keyword=tapped+out+mod+apk+2019 PDF link annotation
    • https://cdn.sqhk.co/riwaxagi/icjxMSh/wallpaper_drag_bike_hd_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nobutowug/gshegvy/momubivileretu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420599/normal_6023670256769.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/cjdClsJ/50859283225.pdfIn PDF document text
    • https://cdn.sqhk.co/xafemepino/q6aEgib/shadow_of_death_dark_knight_stickman_fighting_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373779/normal_5fec838680647.pdfIn PDF document text
    • https://cdn.sqhk.co/josurowelimu/hcji1ih/sakud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451932/normal_5fde6f1e726e0.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/wupixufekijax/37224668808.pdfIn PDF document text
    • http://luwegovufa.epizy.com/gallbladder_polyps_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/bawelororamirilokibulojif.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/adidas_yeezy_700_size_guide.pdfIn PDF document text
    • http://zetakid.rf.gd/nice_guidelines_for_diabetic_diet.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/73664315304.pdfIn PDF document text
    • http://nazifaba.rf.gd/hemangioma_hepatico_gigante.pdfIn PDF document text
    • http://kuwukazisopof.rf.gd/4488508510.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_off0000cb47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB47 5292 bytes
SHA-256: cabb028cfc7c414a884446f6c991c982aaf5ad30462661ec15fb2e8f69e7fc2f
font_01_sfnt_off0000dd44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD44 10448 bytes
SHA-256: 72e385c8b488ca4faf6519b6a0044de425b08ed6d4a83fc110135806946229ab