Analysis
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max time kernel
152s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
30-12-2023 10:25
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 4 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
372B
MD52f02d38aaba5adc5a8479eb9f3923485
SHA11e9f7b5105d124b533ddc97910db3b9a25979a4c
SHA25663e2851d84f9074f53db3f2491df16763bf36a0deef86f37050328d71bb69ba7
SHA512c774a52d9c55260caede3401e0ed4ffb6274f3bb751738e20870a5cb3bb9604d9c609255f201ac9eae8e933a8db24bc0390f3e721efcbd37200a118faf762591
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Filesize
555B
MD5a694df7364ee1b850ed3b87da87f2cb3
SHA1030a5e38310e5e6fd8c94f805b96c89c0bddf090
SHA2563f42c6c13ac4607b102459f5721d6cc23a2054cc6a22bdf33e1cd355b79423e2
SHA5126088905879f08fbce5a5a6d68badb40d807b357478d58ac2210823ad56a7d39bfd5d907c264b23b10a9d34f9d6dcf17a527468170b9e9c298f7bd730cc13fad4
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Filesize
910B
MD534195b037b5e93c2ccbcc292b8313f52
SHA17c5150ffdb21294395e8ac08c744c2b8bea67b85
SHA256ecabed9791747f44c6b680740edb0424458d5bc5f43010eedc8f82f2f490867b
SHA512f0d8c8eb57d013445ab686f00863ba0029d401e292112df95c14836d6db00338719c78e341664f6c12bd0ba96ad9936477386a85a59cfdfb4a150ca596f25c18
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Filesize
1KB
MD5671c8956a820fd77c59b45055b58205f
SHA1f9f211f61a1b636146c3054bc623483436f72cb3
SHA25660c0f664cd71a6c73783fa20cb9599428b6084ab2bb3ce3653e9e246b7e67b55
SHA5122996de20bf50bae9b1d415021cdde2050981e3217729ecfb59bf805fd2c992a2dca035030eb69cf7d38bd269629395529fa2c15cb2a5dfdf4b9d8dd8520fe594
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Filesize
67.0MB
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Filesize
4KB
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Filesize
67.0MB
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Filesize
10.8MB
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Filesize
64KB
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Filesize
1.0MB
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Filesize
1.4MB
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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
8KB
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Filesize
2.8MB
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Filesize
1.0MB
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Filesize
1.4MB
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Filesize
2.8MB
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Filesize
2.8MB
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Filesize
2.0MB
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Filesize
10.8MB