Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f9e18c03370b7ea…

MALICIOUS

PDF

72.1 KB Created: 2021-02-18 03:59:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8b7280fe9d9ea9373dff4cf6c1f4ed43 SHA-1: 37123dc0e29e4e0eda4798ec26606d04fb9153e8 SHA-256: 1f9e18c03370b7ea9446f4d879bd2829712ddde648a9843863388b649e0b52dd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/wix?keyword=hink+pinks+with+answers PDF link annotation
    • http://gebuhrenfrei-mein.com/the_cars_you_might_think_sheet_musicnsopa.pdfIn PDF document text
    • https://cdn.sqhk.co/xurajalijok/ggwvhiQ/94295929671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456114/normal_601d8ec35e8cb.pdfIn PDF document text
    • http://babysampler.com/geography_grade_11_focus_textbook8him9.pdfIn PDF document text
    • https://donefuvo.weebly.com/uploads/1/3/1/1/131164418/2441965.pdfIn PDF document text
    • https://cdn.sqhk.co/dovinokobez/jftRMgi/49681065676.pdfIn PDF document text
    • https://dakesepev.weebly.com/uploads/1/3/4/3/134308776/4281a27ff41e91.pdfIn PDF document text
    • https://xalifabosivibu.weebly.com/uploads/1/3/0/7/130775217/9518737.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462046/normal_601f787760252.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384820/normal_5fe30e413a319.pdfIn PDF document text
    • http://shtangye.xyz/pivupaxujinl10.pdfIn PDF document text
    • https://dizufarul.weebly.com/uploads/1/3/1/3/131379939/rifisej_xafujojida_pizewuketav_dorerod.pdfIn PDF document text
    • https://cdn.sqhk.co/tezasevimab/aSsjijc/21988887081.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368503/normal_5ffe0f95f3ba7.pdfIn PDF document text
    • http://trylait.club/62603847801liiuc.pdfIn PDF document text
    • https://mibiduzomezo.weebly.com/uploads/1/3/5/3/135327428/fozeliwuneked_lilivinabof_rusox.pdfIn PDF document text
    • https://cdn.sqhk.co/gutejalajige/hcIkjha/square_pic_photo_editor_no_crop_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387037/normal_601885b94fdff.pdfIn PDF document text
    • https://cdn.sqhk.co/tirekidifole/QjjjbMz/fake_video_chat.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/tapelu/cafeteria_and_catering_management.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/61265561912.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/60582289263.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_off0000dfa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA9 4992 bytes
SHA-256: 87ebca74b23f4aaad4f09ed855b4d340dd94cb667ced7ed2f5206839000a7d14
font_01_sfnt_off0000f0a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A8 10092 bytes
SHA-256: 84e50deb95a4d4307fdb0bf3e132c56338656b4a9f42db96812baec3d6a0f282

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