Malicious PDF — malware analysis report

Static analysis result for SHA-256 205300b54c76d1b7…

MALICIOUS

PDF

71.7 KB Created: 2021-02-25 17:22:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a17964760498045ea601ab6c9e247288 SHA-1: 6b941fbd735f9a023c7e0011adf26c6e4a411e05 SHA-256: 205300b54c76d1b7998257c1ca5f149a6740accbde515e1b99f1cd7a0b61e553
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/award?keyword=god+in+the+dock+lewis PDF link annotation
    • https://cdn.sqhk.co/pumopivosoba/hd7yhiU/37643550724.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/hcDXu8N/dinoponagesorasobozono.pdfIn PDF document text
    • http://jokidinavefo.22web.org/84127290138.pdfIn PDF document text
    • http://veselutut.mywebcommunity.org/55125643634.pdfIn PDF document text
    • https://pupiwukonavi.weebly.com/uploads/1/3/2/6/132682553/72667.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/igQijXV/polytone_mini_brute_amp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383689/normal_5ff287d777fd4.pdfIn PDF document text
    • https://kexanitafax.weebly.com/uploads/1/3/0/8/130813084/eb6986459176.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371246/normal_5feb78abbad12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406455/normal_5feef17a0f71f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gipanitefoj.epizy.com/sufaxipexerem.pdfIn PDF document text
    • http://sajipesexadagon.epizy.com/16820996312.pdfIn PDF document text
    • http://pivukezafubajeg.rf.gd/fixomujazugiwapavaxobo.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_off0000ded0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDED0 4908 bytes
SHA-256: a3f08b85989019fd863fa8dac1bd369e948d3bfe3aa93a96a24cf093e04b9fe6
font_01_sfnt_off0000ef97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF97 10196 bytes
SHA-256: 2b9abd70d3fb99abde4b05a3bdd2868803f8e2a94f820800b621254a768c80b3