Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d6dedf9a7e03241…

MALICIOUS

PDF

35.4 KB Created: 2021-05-14 17:33:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2a1b2c60a9e4afd47f0a7c363453fc1f SHA-1: 9abea188a305f707b9f6a2a774dbc5def7b9c499 SHA-256: 2d6dedf9a7e03241934fd1556ae33b38b5a05fc5aeda48a8c854c3cabaa0e491
92 Risk Score

Malware Insights

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

This PDF document was flagged as malicious. It uses a remote-support lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier clean score 0.0326

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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
  • 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://netcdn.xyz/app/479516143/minecraft-free-online-unblocked-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003203.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3203 24400 bytes
SHA-256: 6d00895f686c3ea9ccacc6d15adbc8973479f59bcef36ac763e562c60724dac1
font_01_sfnt_off00006899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6899 18472 bytes
SHA-256: abb7a985c0805b7a76c0c4535c5556453d230e477aa0a832b20693e75b2d3697

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