Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcf08e75df02c54f…

MALICIOUS

PDF

32.5 KB Created: 2021-07-19 05:34:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a9e4ad05553fe382b80d3de9a657be62 SHA-1: 71d98ba3b0b10faf380eb3d6dbe821fd65bf7e5b SHA-256: fcf08e75df02c54fb34f1202067227e5d85630be77eb4892e4f22af1758f6e23
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for a 'game hack' lure, directing users to a suspicious URL. The document body explicitly mentions 'Free Tiktok Fans' and includes a call to action to access a 'TIKTOK GENERATOR', reinforcing the social engineering pretext. While no scripts were extracted, the embedded URL is the primary indicator of compromise and likely leads to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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 http://netcdn.tw/app/835599320/free-tiktok-fans-game-hack PDF link annotation
    • https://abqyorkrite.org/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://abqyorkrite.org/images/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://abqyorkrite.org/images/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://abqyorkrite.org/images/roblox-hack_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/tiktok-followers-for-free_GM835599320.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002bd0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2BD0 22784 bytes
SHA-256: b304b2bfa76e7d8bbb0b0fa677d373a3c7c875eeb3f462061e50cf6eb286ac5f
font_01_sfnt_off00005eb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB3 17684 bytes
SHA-256: 9a08de3b0af5ab49577e5f4245d13b378d625872d2828bf675c34a9d6b9d0b04

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