Analysis
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max time kernel
420s -
max time network
428s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
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submitted
08-07-2024 08:24
General
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Target
SolaraBootstrapper.exe
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Size
304KB
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MD5
57e127da218cf91a3bd38b177099edad
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SHA1
40138b9611a8bc7dddc94bccd6d3847ca8ab881d
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SHA256
470914ddf3d824016ea5d00527b72f28e848ba4ef5cc48fc2d8ec65ca8d1f50d
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SHA512
55978686bdf56f7a9f1e9209d77494320390cb6ee5175de728028a7602e1e4c7624196eb5c6b8735f4b4b15dd132d1df8491d166f832580c6a2abeec460b4ef4
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SSDEEP
6144:q/oT6MDdbICydeBrdEGHpcJWba23UVt3QA8e0F5B:q/WJEGHpQWeGUVtj8eUB
Malware Config
Extracted
44caliber
https://discord.com/api/webhooks/1259774804534497342/8EZmH3dK1jU0Q5PXQDVD0hawjscINRdEpoQ85BKJvoPo3stGWAfUJE7lZN4wJCUTHdnG
Signatures
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44Caliber
An open source infostealer written in C#.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 12 IoCs
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Suspicious use of AdjustPrivilegeToken 6 IoCs
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Suspicious use of FindShellTrayWindow 35 IoCs
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Suspicious use of SendNotifyMessage 35 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.exe"C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
8KB
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Filesize
328KB
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Filesize
10.8MB
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Filesize
10.8MB