Malicious PDF — malware analysis report

Static analysis result for SHA-256 308b6f42fd92f5b3…

MALICIOUS

PDF

39.2 KB Created: 2021-05-21 03:38:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d7c95c730f3923a22b99a00bd65ffa6b SHA-1: 05ce6246662ccf5a73a783cee8bca3809cc50b50 SHA-256: 308b6f42fd92f5b35ffdc178c7d674e01ec4ae7fbe1520ce98f993294351f9ff
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a lure related to 'free followers' and 'game hacks'. The primary malicious URL, https://netcdn.xyz/app/835599320/free-tiktok-followers-trial-game-hack, is flagged by heuristics as a redirector for such lures. The document body and embedded links suggest an attempt to trick users into visiting potentially harmful websites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

Heuristics 4

  • 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.
  • 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/835599320/free-tiktok-followers-trial-game-hack PDF link annotation
    • http://szekelymozes.ro/images/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/is-pokemon-free_GM1094591345.pdfIn PDF document text
    • http://szekelymozes.ro/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003234.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3234 26940 bytes
SHA-256: df3ce27550856eedf483bfd05f496f5e9627539d3df922303978b2034557282e
font_01_sfnt_off00006ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE7 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off000078cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CD 17924 bytes
SHA-256: beb6eea47176517674576ae1490d7a553fa707514006d5ed05ae9e05fbad2ca0

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