Malicious PDF — malware analysis report

Static analysis result for SHA-256 493cc06a041f866b…

MALICIOUS

PDF

77.1 KB Created: 2021-02-12 14:35:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a14a9492acd91d24c38d1c9fe6adab25 SHA-1: 2619541f43ae5f81dea7960e84d7f1efec224adb SHA-256: 493cc06a041f866bb9e385ac07b34961d1e5e2d0ec1b81cc6611ee882c14ddbe
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'seumenha.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into downloading further malicious content, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=toyota+avalon+service+manual+pdf PDF link annotation
    • http://natiral.space/896187528204odwk.pdfIn PDF document text
    • https://cdn.sqhk.co/bapuwanuvadi/Vjip6ha/xoom_money_transfer_daily_limit.pdfIn PDF document text
    • https://cdn.sqhk.co/nokotadi/eibwOIq/10539852171.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469358/normal_5ff3fcceb7dcd.pdfIn PDF document text
    • http://websporizle4.com/loxuzexifomixaponivolutev59w2y.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/dXBhgKL/64595666175.pdfIn PDF document text
    • http://inter-kalinka.ru/318753577125pqfn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393515/normal_5fd0ed9097e4c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/genedesowul/80584943902.pdfIn PDF document text
    • http://kalotiwinilobiw.epizy.com/lawuwegesase.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/bukuxomojonutugukakali.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/outlook_signature_template_group_policy.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/ben_ten_alien_force_game.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B3 5296 bytes
SHA-256: 16275b786df2aed0cb811d6d2d4eed49f08bc7aac8948e6aac17f864df4838ae
font_01_sfnt_off0000f3a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A6 11612 bytes
SHA-256: 33e3dd229d78283e1caa3d537f6b9d6ca0f261864855be592342c4256154f71d
font_02_sfnt_off00011917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11917 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.