Analysis
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max time kernel
4s -
max time network
113s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
31-12-2023 21:38
General
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Target
3b1e7e5df7f530ad30e29bb081f1c6e1.exe
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Size
20.1MB
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MD5
3b1e7e5df7f530ad30e29bb081f1c6e1
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SHA1
c54b0c1e12658c7882de84bfe7de4794d4182b39
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SHA256
50feea35e7a324e67b951d06fc3f0f5b01199b47b3cfb5a693e33eec699f84f2
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SHA512
83cb343bad4a00a0c2fb189057cc7fe2c642a8351816509c2239ff4503ac39322130a0f1e718691403c022be3ead6bae0b00a50aa1fd778bad8ba2bdd1c2da6f
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SSDEEP
393216:5hgfUt5Jb7h8Ki8H/4B+/UI+CyW3V1na971fyfP1WH5ePswr/d1:5hXX7hhi8QRbBM1nm71fy3100soX
Malware Config
Extracted
44caliber
https://discord.com/api/webhooks/870328559921668146/kazDUWGIa2HOkULS2qQpDIz38by-5RiNdWFILJQZSPRi2F9j1-5L1rtRf7yO0-V87Q4N
Signatures
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44Caliber
An open source infostealer written in C#.
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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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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Themida packer 3 IoCs
Detects Themida, an advanced Windows software protection system.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks whether UAC is enabled 1 TTPs 1 IoCs
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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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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\3b1e7e5df7f530ad30e29bb081f1c6e1.exe"C:\Users\Admin\AppData\Local\Temp\3b1e7e5df7f530ad30e29bb081f1c6e1.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
105B
MD52e9d094dda5cdc3ce6519f75943a4ff4
SHA15d989b4ac8b699781681fe75ed9ef98191a5096c
SHA256c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
SHA512d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7
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Filesize
1KB
MD541e74d3f6fba66d56879d754907eea64
SHA19ebebe43417567743eacf70a7221da9635b63742
SHA256dd61f394c4e7626b2e35f9f3dc60c4985855d27835974847b2c6b3c5475a2c25
SHA5129caf9670167e7b01e4540e3491f5a817019719e47a4a6259ff28bd43bc1412f067b76bdb58f20dffacb7c5d6e57f497883bd31d682320ecaca93ca603633158d
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Filesize
1KB
MD539b4e87eda1ccc50f2ca47112f4f2c36
SHA17fedf242074105375d8b3a3eff69efd7b1c71230
SHA256b9ff22023351c1a7e1de58a66389ac30cc1fce94a0b26994b78159768bb9aff3
SHA51252cd979666f3bc7930c1196dee8eeb8a8e7e949f6cb59960858fe077b16dd67d1add65e60fcdc07591ceb821ab0198aa66d94b4de073a6213fb25eae593914b8
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Filesize
233B
MD523c2e2c13868675bfba0fd63c679da91
SHA16e42af38bcc249a4bf5acdbf209d47c485a32ba6
SHA256339d86055f1aff8aaa9518e0b4fbc1fe806adff1a2be2ae86cdf4f22d2bdb95d
SHA5123e6bcfa7019a27ec4eba4fe18e7a83fba56b3ebd4880b3e7f3ba0c7b2e2f81927dd04fbfa3fb36dcc0fcbc031b69bda5ce53c48bb44b118b3dc14dfcec4f6004
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Filesize
960KB
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Filesize
960KB
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Filesize
960KB
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Filesize
960KB
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Filesize
960KB
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Filesize
960KB
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Filesize
50.9MB
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Filesize
50.9MB
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Filesize
584KB
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Filesize
50.9MB
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Filesize
5.6MB
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Filesize
8KB
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Filesize
408KB
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Filesize
960KB
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Filesize
960KB
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Filesize
960KB
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Filesize
50.9MB