Analysis
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max time kernel
92s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
30-06-2024 17:59
Static task
static1
Behavioral task
behavioral1
Sample
c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe
Resource
win10v2004-20240508-en
General
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Target
c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe
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Size
2.2MB
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MD5
dae495a3dc00e82ce23e77b8ff0cb9eb
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SHA1
5af5176749399638234f18b7a8008a993babdb33
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SHA256
c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8
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SHA512
ed8ee066f50d41e64d040df78c53784bcdba53b4034078f056c6ffca4773d8c034fa218fde1587b3b919a2e6ce107b437d2b7c3c42b71cca2bad92dc68401bf1
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgX3PU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPs21tuuIeNHYGY0LzjsJxK
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/216-1-0x0000000004030000-0x0000000004143000-memory.dmp family_vidar_v7 behavioral1/memory/1216-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1216-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1216-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1216-22-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1216-23-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1216-40-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1216-41-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4ECC.tmppid process 1216 kat4ECC.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:
c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exedescription pid process target process PID 216 set thread context of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4ECC.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4ECC.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat4ECC.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat4ECC.tmppid process 1216 kat4ECC.tmp 1216 kat4ECC.tmp 1216 kat4ECC.tmp 1216 kat4ECC.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exedescription pid process target process PID 216 wrote to memory of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp PID 216 wrote to memory of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp PID 216 wrote to memory of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp PID 216 wrote to memory of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp PID 216 wrote to memory of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp PID 216 wrote to memory of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp PID 216 wrote to memory of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp PID 216 wrote to memory of 1216 216 c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe kat4ECC.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe"C:\Users\Admin\AppData\Local\Temp\c478a0e1136d48725a915c4f98c65443354420fdc4fb46105efcccec41b787a8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4ECC.tmpC:\Users\Admin\AppData\Local\Temp\kat4ECC.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\kat4ECC.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/216-0-0x0000000000810000-0x0000000000811000-memory.dmpFilesize
4KB
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memory/216-1-0x0000000004030000-0x0000000004143000-memory.dmpFilesize
1.1MB
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memory/216-10-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/1216-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1216-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1216-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1216-22-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1216-23-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1216-25-0x00000000201A0000-0x00000000203FF000-memory.dmpFilesize
2.4MB
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memory/1216-40-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1216-41-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB