Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdcd3b8fc6656fac…

MALICIOUS

PDF

48.2 KB Created: 2021-06-11 11:55:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b85e662ce29c80cdf151f2bf7c326664 SHA-1: 07c4d45192b6984656dce5c4aea41bd595ddf7d4 SHA-256: bdcd3b8fc6656face0365e31d6b8bcf0bed2f2915042ce89dc9d20df29a96c15
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game cheats and hacks, a common lure for malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs likely lead to a site designed to download further malware or exploit the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/cheats-for-roblox-lumber-tycoon-2-game-hack PDF link annotation
    • http://sv-nahetal.de/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-free-robux-easy-on-computer_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-do-i-hack-someone-on-roblox-with-edidthiscookie_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-kindly-instantly_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-pe-hacked-client-download_GM479516143.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_004_off00005127.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5127 26480 bytes
SHA-256: 9ce1b0bd2235810752c78a418a2d110fdb8386715a4717f6090f16625e06ea8d
font_01_sfnt_off00008d4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D4F 2880 bytes
SHA-256: 552e62132cae3603ce0819827e44d96a992bd06014cc5080bf3af4b2ea155b3e
font_02_sfnt_off00009727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9727 19152 bytes
SHA-256: c659e5718397107fda4d9698b955327c07aa4a1967fe8be7f17b60475dd26427

Open this report in the interactive analyzer, or submit your own file for analysis.