Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49eb13bf7f3f4cf…

MALICIOUS

PDF

84.3 KB Created: 2021-03-15 18:21:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24bd020639487fde968feb5c1cb677be SHA-1: 76cf80fc0a8d05f6339192e3f85ae7c34779c903 SHA-256: e49eb13bf7f3f4cfa49b4a57c4541ecafd7d698f752bf7cab31b814c6da33c86
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/wix?keyword=blood+done+sign+my+name+chapter+8+summary
    • https://static.s123-cdn-static.com/uploads/4451940/normal_6000b205b2394.pdf
    • https://cdn.sqhk.co/lopijikuvi/ujeghjj/36545140870.pdf
    • https://cdn-cms.f-static.net/uploads/4383475/normal_5fd396780a1d9.pdf
    • https://cdn-cms.f-static.net/uploads/4417827/normal_601ffd27b72fc.pdf
    • https://cdn-cms.f-static.net/uploads/4449406/normal_6043bfd4bc53b.pdf
    • https://cdn-cms.f-static.net/uploads/4416136/normal_6012bfef7ec0b.pdf
    • https://static.s123-cdn-static.com/uploads/4446770/normal_5fccb61abed39.pdf
    • https://cdn-cms.f-static.net/uploads/4482617/normal_604cbe6105e7c.pdf
    • https://cdn-cms.f-static.net/uploads/4387704/normal_603921e055576.pdf
    • https://cdn.sqhk.co/xamitarerivu/Zcjagij/57371522425.pdf
    • https://cdn-cms.f-static.net/uploads/4379034/normal_602c238d303de.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wefemabeni/what_does_menagerie_mean_in_science.pdf
    • https://s3.amazonaws.com/wizidimawag/health_canada_guidelines_labelling_of_cosmetics.pdf
    • https://uploads.strikinglycdn.com/files/e826641f-0167-48dc-9143-2dc48eb41409/65804905454.pdf
    • https://s3.amazonaws.com/loxopudizus/basetizowid.pdf
    • https://s3.amazonaws.com/supefujoxopubu/73052180075.pdf
    • https://uploads.strikinglycdn.com/files/bbedd4b7-7eeb-422a-a004-16a72bb64f5a/what_does_it_mean_when_battery_charger_says_reconditioning.pdf
    • https://uploads.strikinglycdn.com/files/6cb132ef-742e-4c9b-b629-2652944258b1/62165502270.pdf
    • https://s3.amazonaws.com/mukut/what_mbti_types_get_along.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ba9.bin
169eeb1b7b1838452ca3f67254b92c3bfede421aefdf81c34b978b2b7605af75
pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA9 5832 bytes
font_01_sfnt_off00011f5e.bin
a7af8add48a848c67e3f3858ccb95e3ee7921b20e1687d78903a67a982f0ada2
pdf-font-stream PDF embedded font (sfnt) at offset 0x11F5E 10536 bytes