Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 09:19
Static task
static1
Behavioral task
behavioral1
Sample
8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe
Resource
win10v2004-20240508-en
General
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Target
8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe
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Size
2.0MB
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MD5
4c050161ae0f07b7cd127fb97b18856d
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SHA1
a756a6091283962c9a64070c6049004e572ae1e3
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SHA256
8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd
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SHA512
5516a08a65d9c34fec140e0431064f0bf4e8a5d3a8e1f51f4a392d12e4c2ce43a287ed1387849cc12366e1bf3ce5a1d903b684dd0813d677f9dd31d1b7dad97b
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SSDEEP
49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/3872-1-0x0000000003FE0000-0x0000000004129000-memory.dmp family_vidar_v7 behavioral1/memory/860-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/860-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/860-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/860-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/860-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/860-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/860-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat468E.tmppid process 860 kat468E.tmp -
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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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exedescription pid process target process PID 3872 set thread context of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat468E.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat468E.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat468E.tmppid process 860 kat468E.tmp 860 kat468E.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exedescription pid process target process PID 3872 wrote to memory of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp PID 3872 wrote to memory of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp PID 3872 wrote to memory of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp PID 3872 wrote to memory of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp PID 3872 wrote to memory of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp PID 3872 wrote to memory of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp PID 3872 wrote to memory of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp PID 3872 wrote to memory of 860 3872 8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe kat468E.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe"C:\Users\Admin\AppData\Local\Temp\8dc80a71783ce7e542c002d47d895780f709f7f3cc5023e61a64c1c32854b8bd.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat468E.tmpC:\Users\Admin\AppData\Local\Temp\kat468E.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat468E.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/860-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/860-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/860-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/860-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/860-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/860-17-0x000000001DBA0000-0x000000001DDFF000-memory.dmpFilesize
2.4MB
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memory/860-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/860-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3872-0-0x0000000002370000-0x0000000002371000-memory.dmpFilesize
4KB
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memory/3872-1-0x0000000003FE0000-0x0000000004129000-memory.dmpFilesize
1.3MB
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memory/3872-6-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB