Malicious PDF — malware analysis report

Static analysis result for SHA-256 1abe07ecc5202c1f…

MALICIOUS

PDF

37.8 KB Created: 2021-04-14 14:13:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 046215c3477fcc1042b286e9511300c2 SHA-1: d3dd6e84dfe030cd221d44492e457dec4f242664 SHA-256: 1abe07ecc5202c1f89e53a7dc62c11de14685343cd9a1dbb75abe692b676b365
72 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a 'GAME_HACK_REDIRECT_LURE' pointing to a URL that promises a Roblox hacker name generator. This indicates a social engineering tactic to trick users into clicking the link, which likely leads to a malicious download or exploit. The presence of a download button lure further supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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://gaminggenerator.org/app/431946152/roblox-hacker-name-generator-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_off0000369d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x369D 26884 bytes
SHA-256: e08bf4fb51ead5b22f50f86f1c2baa3433e3cdc3d42d0cdb5d24cb290a422d49
font_01_sfnt_off0000730b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730B 18080 bytes
SHA-256: b56dcb700ba3b3fef67ba25625413a794f69c7fcdeada66ebeac1b598f54b483

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