PDF malware analysis — malicious · 199c2341d78654aa

MALICIOUS

PDF

45.6 KB Created: 2021-06-02 08:20:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: e5eba0ad0d628dc795c081d149d98299 SHA-1: b863b7a38d488af6f85595d56a54cd4312e09622 SHA-256: 199c2341d78654aa18fe4023abde72788d8cf1b3ed044be6b7f604e70757ac9d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains an embedded URI and document body text referencing a URL that promises free game hacks, acting as a lure for users to download a file. The heuristic 'SE_LOLBIN_RUN_COMMAND' also indicates the presence of command-line related artifacts within the document text, suggesting an attempt to execute commands. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.xyz/app/431946152/how-to-look-aesthetic-on-roblox-for-free-game-hack
- https://www.aubay.com/wp-content/uploads/fsqm-files/daily-free-spins-coin-master_GM406889139.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/coin-master-free-spins-2021_GM406889139.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/cheats-roblox-bloxburg_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/minecraft-free-download-mac_GM479516143.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/hacks-for-roblox-the-mad-murderer_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/free-tiktok-comments_GM835599320.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/roblox-free-tshirts_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/roblox-hack-sharder_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/how-do-u-get-free-robux_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/free-roblox-accounts-2021-september_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/hack-para-roblox-mathdrive-jailbreak_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/cmd-hacks-for-roblox_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/huskybuscom-free-robux_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/hacks-for-arsenal-roblox-mega_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-scam_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/minecraft-name-tag-hacks_GM479516143.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/180k-robux-hack_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/how-to-get-free-hats-on-roblox-2021_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/free-robux-admin-button-on-roblox-2021_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/free-spins-coin-master-2021_GM406889139.pdf
- https://www.aubay.com/w
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000054de.bin` `76922c701eba59b4b72fed77c69ec90cb2853080eea529fa7944882c469f550d`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x54DE	25028 bytes
`font_01_sfnt_off00008ed5.bin` `7b8f8ac8ad772797b6cb744aa8b7b19b4f7d493b2e568f500f200e824493226e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8ED5	18672 bytes

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