Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aaa166cadd331e0…

MALICIOUS

PDF

33.6 KB Created: 2021-06-30 02:12:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6ef82624c243ff0e747913cccbe6cd1b SHA-1: cc4b3f42108752d11119cb24ae4407e1f5ee2a3f SHA-256: 2aaa166cadd331e05287237c60c710c113c4dc400c5b43831150f4948a00473a
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to a malicious redirector, specifically promoting a 'free generator / game hack'. The document body and embedded URLs reinforce this lure, directing users to download-related content. This suggests the file is designed to trick users into visiting a malicious site, likely to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/406889139/master-coin-free-spin-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-jailbreak-money-cheat_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/comment-hacker-roblox-android_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/hack-robux-facile-fr_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-tips_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-robux-hack-2021-october_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/gamepass-me-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/rollercoaster-tycoon-2-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-any-gamepass-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/get-free-spins-in-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_off00003075.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3075 21784 bytes
SHA-256: 0906b6fc13f78925616ab8f147fc2893923f9725f13dc2bc9cf84f22bfb7a24b
font_01_sfnt_off000060bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BC 18176 bytes
SHA-256: e7ebdb51c22119da7989f291c4e1e79e43f48b2212e10ddb7071af0af135db83