Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f1e18cd38438b09…

MALICIOUS

PDF

71.1 KB Created: 2020-12-02 15:02:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2222c54c4f3f1015c6982387bf1e21b SHA-1: 1cf0aaea880d4f320cdc59badff6bcdb838209f9 SHA-256: 6f1e18cd38438b09e18bff410c4ec876e4f12e06b9c4e0771333ddd6f6dd9d4c
104 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as a phishing trojan and an ML classifier assigned a high probability of maliciousness. The document body contains a lure related to 'pubg emulator hack tool free' and an embedded URI points to a suspicious URL, suggesting a phishing or malware distribution attempt. The presence of a visual download button further supports the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafffi.ru/aws?utm_term=pubg+emulator+hack+tool+free
    • https://rubazepenomul.weebly.com/uploads/1/3/4/3/134324915/delotutapokepuk_retudofup.pdf
    • https://gurigibafex.weebly.com/uploads/1/3/0/7/130739571/kujilolorakuw.pdf
    • https://nepajomawowezuw.weebly.com/uploads/1/3/4/4/134462508/pekokevufir.pdf
    • https://mefevujeloz.weebly.com/uploads/1/3/4/3/134317202/86b6e024e1cf95.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static1.squarespace.com/static/5fc2a954239b0722913c9654/t/5fc6c19d1d106d256bac0d17/1606861214091/t_mobile_customer_service_chattanooga_tn.pdf
    • https://s3.amazonaws.com/fejenijovekozu/figeramuxazapug.pdf
    • https://s3.amazonaws.com/fejenijovekozu/zoll_m_series_cct_user_manual.pdf
    • https://s3.amazonaws.com/vibove/33464497311.pdf
    • https://uploads.strikinglycdn.com/files/3eeb7d95-aa94-4a2d-a1d7-778bf0888672/portadas_para_trabajos_word.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd1231803f460880cbb032/1606226482947/51938221636.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc55.bin
1993e1d311cf608ee7320dd5e6fa0e422cad69052dae00752ddc4667ee29033b
pdf-font-stream PDF embedded font (sfnt) at offset 0xCC55 5048 bytes
font_01_sfnt_off0000dd86.bin
4de00636c4f69a9e4681cc4b8d7c75c82a61e7b098a442b7730f995261ccec83
pdf-font-stream PDF embedded font (sfnt) at offset 0xDD86 10472 bytes
font_02_sfnt_off0001014d.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0x1014D 4324 bytes