Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8010d4c742dc534…

MALICIOUS

PDF

34.2 KB Created: 2021-07-07 03:06:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6643d93d33d69d09abbb73a7b7657e88 SHA-1: fb1a96a495c759d51494fb29d22195b2b11268d6 SHA-256: b8010d4c742dc534c57faede86f09630b8d830aa1418a78ae994ce578d018b33
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and references to game hacks and generators, strongly suggesting a lure for users to download potentially malicious files or visit phishing sites. The ML classifier also flagged this PDF as malicious with high confidence. The primary IOC is the initial redirector URL which likely leads to further malicious content.

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-hack-pc-game-hack PDF link annotation
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/roblox-swat-shirt-free_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/robux-xyz_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/roblox-safe-hacks-download_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/roblox-ro-ghoul-free-yen_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/roblox-murder-mystery-free-hacks_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/no-cooldown-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/coin-master-game-free_GM406889139.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/wurst-115-2_GM479516143.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/robux-game_GM431946152.pdfIn PDF document text
    • http://mtsnslemankota-elearning.net/__statics/gudangsoal/files/rbl-gg-free-robux_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
stream_002_off000030dc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30DC 22644 bytes
SHA-256: da15bd8efa130103153d014fb4295bc6333364ae4b8334b16d32dfaaec284595
font_01_sfnt_off0000637e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637E 18160 bytes
SHA-256: fd8dd7e41966129b00bd6faab6d015b3d95d63fef28ab848195abaaf238f8237

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