Analysis
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max time kernel
130s -
max time network
149s -
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 08:36
Static task
static1
Behavioral task
behavioral1
Sample
edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe
Resource
win10v2004-20240508-en
General
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Target
edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe
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Size
2.0MB
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MD5
a9c149590d54631451e8bed277ffc1a5
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SHA1
874c50f554d8804e36def971e25d4b755ab97e15
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SHA256
edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c
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SHA512
75468b175ac5d746d42cae04366d807c4c5951bd890740b6d485a443e342f125170ff4979c0c649eebd2b6a228224246b9c0b78c2da62ca17ac1a9e516bb8c90
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SSDEEP
49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ
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/4368-1-0x00000000040B0000-0x00000000041F9000-memory.dmp family_vidar_v7 behavioral1/memory/4400-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4400-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4400-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4400-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4400-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4400-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4400-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4863.tmppid process 4400 kat4863.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:
edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exedescription pid process target process PID 4368 set thread context of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4863.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4863.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4863.tmppid process 4400 kat4863.tmp 4400 kat4863.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exedescription pid process target process PID 4368 wrote to memory of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp PID 4368 wrote to memory of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp PID 4368 wrote to memory of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp PID 4368 wrote to memory of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp PID 4368 wrote to memory of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp PID 4368 wrote to memory of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp PID 4368 wrote to memory of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp PID 4368 wrote to memory of 4400 4368 edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe kat4863.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe"C:\Users\Admin\AppData\Local\Temp\edcce638861b5de18ebcabd65b8fd2b07211275bb539a1743643a79b9aab146c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4863.tmpC:\Users\Admin\AppData\Local\Temp\kat4863.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\kat4863.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/4368-0-0x0000000000750000-0x0000000000751000-memory.dmpFilesize
4KB
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memory/4368-1-0x00000000040B0000-0x00000000041F9000-memory.dmpFilesize
1.3MB
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memory/4368-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/4400-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4400-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4400-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4400-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4400-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4400-23-0x00000000283F0000-0x000000002864F000-memory.dmpFilesize
2.4MB
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memory/4400-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4400-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB