Malicious PDF — malware analysis report

Static analysis result for SHA-256 79785cbab647c698…

MALICIOUS

PDF

36.2 KB Created: 2021-07-04 01:34:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 29b51a4f63b5636f9508a3122b4293b7 SHA-1: d0bd69d2e0a7c36209f15311b9ebed95e1073256 SHA-256: 79785cbab647c698921f1948f61d5ee6e1ec65f33637c808eb7e3c7bba791eb7
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs, with a primary focus on luring users with game hacks and free spins for popular mobile games. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. The document likely exploits a vulnerability to execute code or redirect the user to a malicious site, aligning with T1203. The presence of external links suggests a phishing or social engineering attack vector, consistent with T1566.001.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/406889139/coin-master-free-spins-link-today-haktuts-game-hack PDF link annotation
    • http://elib.acls-indonesia.com/repository/fiverr-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/how-to-bypass-roblox-with-cheat-engine-66_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/boxing-simulator-2-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/hacks-for-blood-flow-roblox_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/comandos-para-project-gamma-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/hack-download-for-btools-roblox_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robloxcom-accounts_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/roblox-free-clothes-cheat-2021_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000362a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x362A 22832 bytes
SHA-256: 886e05a18588a9d1f71454a15c5a8b541d5b3d4834d44396214412a2ce13c795
font_01_sfnt_off00006916.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6916 18840 bytes
SHA-256: 1c196598d7565b04b12914c9b0b6f4ca1aa495b1c41f3b8025fb009c6aa67c48

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