Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1bba1e87e9b52f2…

MALICIOUS

PDF

46.5 KB Created: 2021-05-17 21:02:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4f895c91815c31d17c788ceff68de3fc SHA-1: 44be29f823da9a0041bdc371333fbf08e3564d20 SHA-256: d1bba1e87e9b52f25a52117ef3e8dde4790cf68157e50e2436068978b0399c14
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a free generator or game hack. These links redirect to malicious infrastructure, specifically a URL associated with game-related scams. The presence of a visual download button further supports the deceptive nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/431946152/robux-free-online-game-hack In PDF document text
    • https://abouttimetech.com/images/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/robux-only_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-homepage_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-links-2021_GM406889139.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_off00004b67.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B67 25908 bytes
SHA-256: 25f36a797057f22b293ae0b4b5dac3631554fd611c60fb62727b03a166c2278c
font_01_sfnt_off0000880e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880E 3452 bytes
SHA-256: 33f517e78bf3a1651dffb738c8253e26c400c782daf86c125c02a486458e7d39
font_02_sfnt_off00009380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9380 18208 bytes
SHA-256: 9c6e6aa5efa9903ee4d2fc70532f13b8880c04837d913a4df075592e4b137fb6

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