Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed549b1734a41f6d…

MALICIOUS

PDF

72.6 KB Created: 2021-02-18 00:29:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 6a1c07c26418a7155167c6a9db65682a SHA-1: 1d8a9125ef56979f3a82163817e8a65fa4c0e818 SHA-256: ed549b1734a41f6d640edd2833acea36d83894b9427e2f94ac9162acf539d787
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to workplace appearance, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/strik?utm_term=why+is+appearance+important+at+work PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383801/normal_601a120bc8e55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450884/normal_5ff970b9d08df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387589/normal_601604727ca6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445745/normal_6014614785ef1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409122/normal_5ffbcf92ee89a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381320/normal_6007cbb067183.pdfIn PDF document text
    • https://cdn.sqhk.co/lotivadafe/kjjRjjs/85455737698.pdfIn PDF document text
    • http://selavaxanunuv.iblogger.org/kinobody_superhero_bulking_program.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392210/normal_601b1edb4cdcd.pdfIn PDF document text
    • https://cdn.sqhk.co/xujurovemu/icipgfP/jopanoseke.pdfIn PDF document text
    • https://cdn.sqhk.co/rekewuneboxu/ojj4kgj/survival_rate_of_pancreatic_cancer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449599/normal_5fff4b528700e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455894/normal_6005e10dee8cb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vugapadilubokis.epizy.com/popakirerunogujozakeg.pdfIn PDF document text
    • http://zemadepa.rf.gd/ruxatageburuduvanipedo.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_off0000e1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AC 5412 bytes
SHA-256: 887eae342c53ea99844f6bb95f9e00e5e8d0988c27a5ea97f5036974735d1e22
font_01_sfnt_off0000f407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF407 9892 bytes
SHA-256: 88087420793ee8c5805e7208858df808769e2e29ca525ef8ddc8e29851efc4c7