Analysis
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max time kernel
92s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 18:30
Static task
static1
Behavioral task
behavioral1
Sample
e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe
Resource
win10v2004-20240508-en
General
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Target
e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe
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Size
2.0MB
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MD5
a1cef5e196ba87c75db8f8ae17d58e97
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SHA1
d2935bc35fda912322d3569abc872788162bab5a
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SHA256
e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3
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SHA512
f77f07170679e3c6050a8b260fe6652a2047fa0d7f6da560c67d6ff627e5f029000f05997807ec1930523f9409e28292d9bc3f5d9546fa312846b5b9cab2c7bb
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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 9 IoCs
Processes:
resource yara_rule behavioral1/memory/4876-1-0x0000000004030000-0x0000000004179000-memory.dmp family_vidar_v7 behavioral1/memory/2880-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2880-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2880-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2880-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2880-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2880-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2880-51-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2880-53-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat449A.tmppid process 2880 kat449A.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:
e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exedescription pid process target process PID 4876 set thread context of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat449A.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat449A.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat449A.tmppid process 2880 kat449A.tmp 2880 kat449A.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exedescription pid process target process PID 4876 wrote to memory of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp PID 4876 wrote to memory of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp PID 4876 wrote to memory of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp PID 4876 wrote to memory of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp PID 4876 wrote to memory of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp PID 4876 wrote to memory of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp PID 4876 wrote to memory of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp PID 4876 wrote to memory of 2880 4876 e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe kat449A.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe"C:\Users\Admin\AppData\Local\Temp\e65f47787831de89546b616e2241d8516cd348174e0f4a35759740ab5075f8b3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4876 -
C:\Users\Admin\AppData\Local\Temp\kat449A.tmpC:\Users\Admin\AppData\Local\Temp\kat449A.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2880
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat449A.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2880-20-0x000000001DBE0000-0x000000001DE3F000-memory.dmpFilesize
2.4MB
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memory/2880-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2880-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2880-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2880-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2880-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2880-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2880-51-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2880-53-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4876-1-0x0000000004030000-0x0000000004179000-memory.dmpFilesize
1.3MB
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memory/4876-7-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/4876-0-0x0000000002260000-0x0000000002261000-memory.dmpFilesize
4KB