Analysis
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max time kernel
20s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
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submitted
31-12-2023 06:25
General
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Target
2ba940cf9a7a31aa0cfc73f74e3482e4.exe
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Size
3.1MB
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MD5
2ba940cf9a7a31aa0cfc73f74e3482e4
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SHA1
2874764e864021db2985ff64ef8dd94d1957f3d8
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SHA256
9d4c0e742192d990d817e17aa3375658cb704ae49b81a0da85fe4b40fcd14465
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SHA512
443287c03e81ba5e0bcceef5a5381646579645342c618f86742297605a72537da4c07b86a8dfbf57d553b0f54351f44871f8cb4403179f051f8bcd2133ffcbfd
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SSDEEP
98304:6Syum4Rwim9q8GN0lEulzh5kte61nqkELcQ0p+IQ+SeEIRt:oUR1m9q8GMlzh5kksqDLAp+IZST8
Malware Config
Extracted
44caliber
https://discord.com/api/webhooks/867100509307142154/BMIycBNKWEMuXl991uUrUx-2sScTu3a04QCmMfOP8t-z9WEPTh8ZVkINTJPpUma2BdTD
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\2ba940cf9a7a31aa0cfc73f74e3482e4.exe"C:\Users\Admin\AppData\Local\Temp\2ba940cf9a7a31aa0cfc73f74e3482e4.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
8.4MB
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Filesize
960KB
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Filesize
584KB
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Filesize
8.4MB
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Filesize
960KB
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Filesize
960KB
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Filesize
960KB
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Filesize
8KB
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Filesize
8.4MB
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Filesize
8.4MB
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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
5.6MB
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Filesize
408KB
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Filesize
960KB
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Filesize
960KB
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Filesize
8.4MB