Malicious PDF — malware analysis report

Static analysis result for SHA-256 391318b9eb6a1f24…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 07:01:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 44e0328906e80715c7b4f8e72977227b SHA-1: a989c5da28ac23a336e051be4c355e8a7d27904c SHA-256: 391318b9eb6a1f2465a731cf1837d719c209cbbd5e78ab3751b091cebb75e36b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/479516143/cool-minecraft-hacks-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/free-roblox-promocodes-that-stiil-work_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-a-private-server-roblox-jailbreak-for-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-do-you-hack-in-critical-strike-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/best-free-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/car-sim-free-code-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-boku-no-hero-academia-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-site-fracais-fiable_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-to-hack-joining-sumones-server-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-bag-goku_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-deals_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-jailbreak-play-for-free-online_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/make-your-own-roblox-avatar-for-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hack-impact-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-legendary-swords-rpg-hack_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_off000030d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D2 22748 bytes
SHA-256: 7186e418bf3320d0b251615186a7c4ac9f774937889cd3247b5ffd0205394f8d
font_01_sfnt_off00006389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6389 18240 bytes
SHA-256: 1c98bc36042c0615650adcd4002099b1bf58f46cf651dff08176303f69938fe5

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