Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d1e7421f9a449f…

MALICIOUS

PDF

67.4 KB Created: 2021-02-13 11:48:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 93787f5d9a6b35f9b62d88ff13d8aa7a SHA-1: 37337b3ae0198eccf88ffdd5f2378adaa9db0531 SHA-256: c5d1e7421f9a449f3cdfd00cea17733edda40ac49ca4bd6b24d233b48243bdbd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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=te+quiero+mucho+lyrics PDF link annotation
    • http://merulabodonulu.iblogger.org/weather_report_bishkek_kyrgyzstan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393485/normal_5fe91e9ac7c23.pdfIn PDF document text
    • https://cdn.sqhk.co/riketumes/3cAbn8n/lego_racers_2_rocket_racer_car.pdfIn PDF document text
    • http://shop50off.info/whatsapp_apk_for_blackberry_os_71njca.pdfIn PDF document text
    • http://topcreditcheck.info/tobokege356yi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475866/normal_5fd8b097c60a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394079/normal_60276a2ea42d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503787/normal_5fe262171e089.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486745/normal_6021949d090f4.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/2hjfifz/xokabu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487200/normal_5fec94812e64c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450139/normal_602128473af01.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/449288531198do2f.pdfIn PDF document text
    • http://zuzotolifewujex.22web.org/49706774855.pdfIn PDF document text
    • http://pollsexpert.com/aster_flower_information_in_kannadafydb2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mefabimunusor.epizy.com/66121920943.pdfIn PDF document text
    • http://wepexivir.epizy.com/gsfa_platinum_guidelines.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_off0000ca2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA2E 5008 bytes
SHA-256: 6e811b2add2f62619a869892173e2e7c2921415a0da36a412896c7e086507423
font_01_sfnt_off0000db19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB19 11036 bytes
SHA-256: 882a520740f87fe23215e6985c50e385c52dc36837307ddf95ca12a7b1605c57