Analysis
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max time kernel
90s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 16:37
Static task
static1
Behavioral task
behavioral1
Sample
d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe
Resource
win10v2004-20240508-en
General
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Target
d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe
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Size
2.0MB
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MD5
8122eccc7f6626465aea3665bc561514
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SHA1
c2037dd299d568296da48c942ff9bec63332ea5b
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SHA256
d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f
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SHA512
2faf1534e65673cee0a0d4f9f43050112305bb9f6ba3a1ea3c5af7f9e36250129180d3e89be984fcaa24d2cdf0354a12cf7b84fa783772964a7266ca66c5aaa0
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SSDEEP
49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ
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 behavioral2/memory/1220-2-0x0000000004090000-0x00000000041D9000-memory.dmp family_vidar_v7 behavioral2/memory/3632-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3632-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3632-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3632-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3632-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3632-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3632-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat511D.tmppid process 3632 kat511D.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:
d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exedescription pid process target process PID 1220 set thread context of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat511D.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat511D.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat511D.tmppid process 3632 kat511D.tmp 3632 kat511D.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exedescription pid process target process PID 1220 wrote to memory of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp PID 1220 wrote to memory of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp PID 1220 wrote to memory of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp PID 1220 wrote to memory of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp PID 1220 wrote to memory of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp PID 1220 wrote to memory of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp PID 1220 wrote to memory of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp PID 1220 wrote to memory of 3632 1220 d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe kat511D.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe"C:\Users\Admin\AppData\Local\Temp\d698f4a95e8e4906e2ac061839316a6f45a713944952db9b61bdd9b64222961f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1220 -
C:\Users\Admin\AppData\Local\Temp\kat511D.tmpC:\Users\Admin\AppData\Local\Temp\kat511D.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3632
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat511D.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1220-0-0x0000000002460000-0x0000000002461000-memory.dmpFilesize
4KB
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memory/1220-2-0x0000000004090000-0x00000000041D9000-memory.dmpFilesize
1.3MB
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memory/1220-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/3632-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-23-0x0000000026060000-0x00000000262BF000-memory.dmpFilesize
2.4MB
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memory/3632-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB