Malicious PDF — malware analysis report

Static analysis result for SHA-256 12a2b07497cc1d93…

MALICIOUS

PDF

73.2 KB Created: 2021-03-06 02:48:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8e991dfdf9369e8400ce346300982152 SHA-1: d03fe796d3259df6eee804173be80b78b3773b9a SHA-256: 12a2b07497cc1d93b7181d7453a9783f0fb13263f3e8c810e4696b4a191cedd8
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/wix?keyword=monster+carnival+app PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4497109/normal_60126e95ca6fc.pdfIn PDF document text
    • https://cdn.sqhk.co/feduvefas/jdveyg2/toxupakeg.pdfIn PDF document text
    • http://finonit.mypressonline.com/50743357163.pdfIn PDF document text
    • https://cdn.sqhk.co/wovegase/jdnghge/nomad_sculpt_tutorial.pdfIn PDF document text
    • http://gerobotukonu.iblogger.org/reckless_love_of_god_ukulele_chords.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/gfjDhd9/41281295087.pdfIn PDF document text
    • http://tufofol.medianewsonline.com/gudomekubibirakizu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499673/normal_602d0d589043f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/294fbaed-0026-47a5-b08c-e6e7f4d936e2/gonataxisesufen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3720553-6ee8-4ae9-8734-ed4c6b38e040/85748843900.pdfIn PDF document text
    • http://selofedibaxonal.epizy.com/govanafukilokajetine.pdfIn PDF document text
    • http://duxegejuw.atwebpages.com/high_level_capacity_planning.pdfIn PDF document text
    • http://sojisij.epizy.com/gipogawasuviga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f15dab44-471f-4909-975a-ff17a37f2f16/garuda_puranam_full_book_in_telugu.pdfIn PDF document text
    • http://nulidofa.rf.gd/52763609177.pdfIn PDF document text
    • https://c145ee04-3c3b-4786-8b94-e0511401b322.filesusr.com/ugd/de65f7_3094d2889df54cf3b61b66f6b8b01533.pdf?index=trueIn PDF document text
    • https://626fb5af-1d67-41cb-86ce-204163677ff0.filesusr.com/ugd/9d869b_7d7177d6facd4a8ea787153f0dbbd8a2.pdf?index=trueIn PDF document text
    • https://8c285b57-3156-47ce-881b-df665acc117b.filesusr.com/ugd/8d46c2_12d1c113ad6e4a10b8d9d71b3ed8938b.pdf?index=trueIn PDF document text
    • http://tosememab.rf.gd/83390902544.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42d9f946-461f-43d1-b5d7-c70ef0b6be52/titeto.pdfIn PDF document text
    • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_6a64ae8323654c699af6b01edf4129c0.pdf?index=trueIn 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_off0000e158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE158 4992 bytes
SHA-256: c86043fa5632df88be94eaaec4ddd49ded346fde0c3f1596545d4a3a53350a72
font_01_sfnt_off0000f275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF275 11140 bytes
SHA-256: eef1984f76acfe2297e477c1918df2c3335c7e72795c9082b04874025b9c0374