PDF malware analysis — malicious · 50593246d952bc2b

MALICIOUS

PDF

46.0 KB Created: 2021-06-09 00:55:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: dc77d609f443e9e74341626d54991654 SHA-1: c0b07d2667d7923019b2603da84e4455d5691816 SHA-256: 50593246d952bc2bd80f889ac661c83dc54ccbecd42d69b02698d749b0d3cc4f

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document presents itself as a guide for hacking in-game currency, a common lure for phishing or malware distribution. The presence of external URLs and the 'SE_LOLBIN_RUN_COMMAND' heuristic firing, referencing 'cmd-hacks-for-roblox_GM431946152.pdf', suggest an attempt to trick the user into executing commands or downloading further malicious content. While no scripts were explicitly extracted, the PDF structure and heuristics indicate a malicious intent to exploit user interest in game cheats.

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.tw/app/431946152/how-to-hack-money-in-heists-simulator-roblox-game-hack
- https://www.aubay.com/wp-content/uploads/fsqm-files/robux-hack-really-works_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/roblox-seven-deadly-sins-online-script-hack_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/free-robux-3-pastbincom_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/roblox-cheat-2021-fr_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/how-to-upload-music-to-roblox-for-free-2021_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/roblox-free-robux-generator-2021_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/minecraft-free-download-chromebook_GM479516143.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/how-to-get-robux-for-free-2021_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/hack-para-roblox-mathdrive-jailbreak_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/cheats-roblox-bloxburg_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/free-coin-master-spins-link_GM406889139.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/free-tiktok-fans-and-likes_GM835599320.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/roblox-hack-script-animations_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/black-adidas-shirt-roblox-free_GM431946152.pdf
- https://www.aubay.com/wp-content/uploads/fsqm-files/como-tener-anti-gravedad-en-roblox-hack-check-crashed_GM431946152.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_off0000538a.bin` `17c88460123be7e50c8fdefeb5945f5362ea68d587edd2c9047cd40656328349`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x538A	25248 bytes
`font_01_sfnt_off00008dfb.bin` `e9f267b09194147c232524cf041bf78e4cb88996b3bf7a41d79bfa8887f7e81b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DFB	19344 bytes

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