Malicious PDF — malware analysis report

Static analysis result for SHA-256 aff177d250abd0dd…

MALICIOUS

PDF

45.7 KB Created: 2021-05-15 08:17:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1a2d3398c8d58b9433a9f1532d21a2c9 SHA-1: a63e922a51689d5fb86ba2ecd1de7899b78c214b SHA-256: aff177d250abd0ddfd2631e6c9b3c01cbaef51db6ff404eae4d9e13cdd7c6d08
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that are associated with game hacks and free item lures, indicating a phishing or scam attempt. The heuristic firings confirm the presence of malicious redirector links and a general ML classification of maliciousness. While no scripts were explicitly extracted, the document's structure and embedded URLs suggest it is designed to redirect users to potentially malicious content or download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-get-minecraft-bedrock-edition-for-free-game-hack In PDF document text
    • http://parsbaft.com/images/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-coin-master-in-pc_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/abd-roblox_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-free-education_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/robux-matchcomfree-robux_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_003_off00004b00.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B00 26712 bytes
SHA-256: ff81b3186d2ca9c1cc20fdec361482344a5872deb29e6a353619fecba608ed2a
font_01_sfnt_off000085a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A7 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00008fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB7 18436 bytes
SHA-256: 3a0999d30397def23c47b5d80e97d9b0f28df4cbffb45a09cf4ec0f6b7597619

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