Analysis
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max time kernel
142s -
max time network
172s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
25-12-2023 10:03
General
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Target
15dbc954cd4f54abc55486ef11375fa6.exe
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Size
25.5MB
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MD5
15dbc954cd4f54abc55486ef11375fa6
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SHA1
c671fac7354974f482b9852dfbd4c9204782f317
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SHA256
1e71f322863511ac34ab0013f3740b1921a9756f4b326d2184a8f6159e61ccff
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SHA512
f4988c3fe2d18cff76dd869e65c60b06c9943f88c92f29807ff6e29044f3a166e7b3c582793e1c1a56bb3e98e6c51edc85458ef809825fd694f15fec3bcf46ba
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SSDEEP
786432:XLtc+xXgVxnovLYeLV1yhoyVOvgWWv7S4:5cUI49xHyQJ4
Malware Config
Extracted
44caliber
https://discord.com/api/webhooks/870377028749242408/bsw2VmRGeiAIilnd9vwqpCOLMZO_5v4RLwcEnrTBTCpbNpQmrUG6iRNERPAwaRZbpXqc
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 2 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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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\15dbc954cd4f54abc55486ef11375fa6.exe"C:\Users\Admin\AppData\Local\Temp\15dbc954cd4f54abc55486ef11375fa6.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
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5d2fd725e3fcacba6e9efdc7f1b548402
SHA10ec29845dfe28da21165530e281fefaa4e3697e1
SHA256e0d14bb5db99b28154d1dad8a89bac4e6e14a55d4314f131965584bb2096a53c
SHA5125c85d48ac7bc8f47856294897f3a49826de4b510efb64e30b10969e53d12bc85dc1aec11400b0ed59057e1328926ed7d0d2e998be6a4df290997f86d2e07484a
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Filesize
158B
MD5f8fe136924a6d661378d261f43556d66
SHA1e1fd0716b19268bc648fb36fadcee8b1a4468ea9
SHA256bcec28f58e0b343a67acf249ef2b692294ef90f1e9b8f452cbce92500d18371e
SHA5124dc1b2ce62f63bd3ca20e05e4cffcf300008f97271c9497a51d5b6df44ed80e3b9e6ae353ae02ec3d65bee77a4dc673c06ada1b5acd533d733ab72fc80324e4b
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Filesize
308B
MD539415a5c86f525e41600792291fd0686
SHA112d7f42d04d3256fcba57c27b41f1d5633fd0024
SHA256445fa07e7c109a6e9ceab730e982607dde124ffd0a6bae8452c1ce8d889e0583
SHA5126aa93c4f349e4d206e95263562db7a30685df176be8b5128f5d3988a28d04cd0aa0e0af0dd24d501e90969fdf5195041c3fbbb99fd553f9f12eadb2002e23c51
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Filesize
4KB
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Filesize
2.0MB
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Filesize
10.8MB
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Filesize
67.0MB
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Filesize
67.0MB
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Filesize
64KB
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Filesize
2.8MB
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Filesize
8KB
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Filesize
2.8MB
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Filesize
2.0MB
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Filesize
2.8MB
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Filesize
10.8MB