Malicious PDF — malware analysis report

Static analysis result for SHA-256 6191181649bc96e1…

MALICIOUS

PDF

68.6 KB Created: 2021-01-14 06:38:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c6c65a652c88b8c91f07efc3659bb06f SHA-1: 84a3196e02857d6e45370de319bf59ea224908e9 SHA-256: 6191181649bc96e1e4fa04461314a3c3a6e045d222a302b20ec3d4a54465f391
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or trojan delivery mechanism. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document likely instructs the user to copy and paste commands into a shell, a common tactic to trick users into executing malicious code. The embedded URL 'https://traffnew.ru/aws?utm_term=abrir++automaticamente+firefox' is a strong indicator of a phishing or malware distribution point.

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
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://traffnew.ru/aws?utm_term=abrir++automaticamente+firefox PDF link annotation
    • https://cdn.sqhk.co/waximanodif/fihCgiR/does_he_like_me_or_not_mixed_signals.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374536/normal_5fe1875bb1ded.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368469/normal_5fd39d5f91987.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/HhijhjD/dezetifujaveber.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471464/normal_5fa5c807c5ed3.pdfIn PDF document text
    • https://site-1174481.mozfiles.com/files/1174481/a_bugs_home_game_help.pdfIn PDF document text
    • https://cdn.sqhk.co/motulobugaji/jJnRijb/fematijaxusigezubapilajaz.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/ogcPjfw/muzesupunatiseruran.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498702/normal_5fb293fa3507b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488806/normal_5ffe52a098906.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jifesu/vimosibepadimefazumezex.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_off0000d00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00A 5012 bytes
SHA-256: 7a247d6e78a2f9105de73f755dbc079b935c3ab616f8a895675574b91afa760c
font_01_sfnt_off0000e10a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10A 11040 bytes
SHA-256: 5cbb829b351d31fb0b0b85a4cca4d09062256cbf1b519143b79f6481bd4afaf6