Malicious PDF — malware analysis report

Static analysis result for SHA-256 faee5b5a78623b06…

MALICIOUS

PDF

34.1 KB Created: 2021-07-19 11:34:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e601d052ab20e5e14ec705b5e56202d3 SHA-1: e01b24328e9d66be9e7feaafa8b578edbd08bc5e SHA-256: faee5b5a78623b0658d193c8703da5622286c366534d6e46cdefe16b71e58307
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically advertising "free generator / game hack" lures. The document body and embedded artifacts suggest an attempt to trick the user into clicking these links, which likely leads to a second-stage download or exploit. The presence of multiple related PDF URLs further reinforces the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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 http://netcdn.tw/app/406889139/coin-master-free-blogspot-game-hack In PDF document text
    • https://ambarevleri.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://ambarevleri.com/images/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://ambarevleri.com/images/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://ambarevleri.com/images/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://ambarevleri.com/images/free-robux-generator-for-kids_GM431946152.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_off00002eb1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EB1 23152 bytes
SHA-256: fdf624efea12633ef03ba14d853749efb374365ed4300d928bb0a7f970b1f057
font_01_sfnt_off000062e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E2 18464 bytes
SHA-256: 3d1506adb004325b5ad849f11167115e1f90dbd1428f7e6d98779d75984a0c30