Malicious PDF — malware analysis report

Static analysis result for SHA-256 9143338dd38d716c…

MALICIOUS

PDF

34.6 KB Created: 2021-06-29 20:55:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a8ce5ec35184865fb9c32f23722c3866 SHA-1: b846d52383aa6c982fb0669886510cd893cf6f29 SHA-256: 9143338dd38d716c2bd2d3acb68d17a9005bdd7c2d5cff59b0998250ea190a16
82 Risk Score

Malware Insights

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

The PDF document contains numerous URLs and text referencing game hacks and free currency, strongly suggesting a social engineering lure. The presence of 'cmd-to-hack-roblox' in the document text and a high ML classifier score indicate malicious intent. The document likely serves as a dropper or redirector to malicious content hosted at the provided URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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.co/app/431946152/savagery-how-to-get-free-robux-game-hack
    • http://www.alajwakh.com/uploaded_files/userfiles/files/cheat-doodle-robux_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-minecraft-account_GM479516143.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/classic-noob-roblox-t-shirt-free_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/robux-hack-generator_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-minecraft-skin-packs_GM479516143.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/calu-hack-for-roblox-jailbreak_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/how-to-use-cmd-to-hack-roblox_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/broken-bones-4-roblox-hack_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/roblox-got-talent-piano-hack_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-fmswat-camp-roblox_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/kids-games-free-roblox-download_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-robux-team_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-roblox-cards-june-2021_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/electric-state-roblox-hack_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/pokemon-go-free-hack-ios_GM1094591345.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/wwwcoin-master-hack-apk_GM406889139.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/coin-master-hack-2021-apk-download_GM406889139.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/get-me-robux-for-free_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/cheat-engine-63-roblox-jailbreak_GM431946152.pdf
    • http://www.alajwakh.com/uploaded_files/userfiles/files/free-robux-card-numbers_GM431946152.pdf
    • http://www.alajwakh.com/u
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000301d.bin
eaeeb18050ac0f1a7e9b25274748f3afcbc33a70c5faf9dffcd8f62486a5896c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x301D 22292 bytes
font_01_sfnt_off00006159.bin
2f45af6c31ce09f971f9fcc6e9c24a5305d08a131bd3f3d6b24a24295a472e7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6159 19280 bytes

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