Analysis
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max time kernel
90s -
max time network
92s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
26-05-2024 14:44
Static task
static1
Behavioral task
behavioral1
Sample
dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe
Resource
win10v2004-20240508-en
General
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Target
dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe
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Size
2.0MB
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MD5
a6c81395895974be957916b4a98ee096
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SHA1
32d1d37390ec40b45ed8dba6081fd5459fe6b2e7
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SHA256
dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a
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SHA512
cb7af04d04745c79420bba8ab668a874d1dd16a181d5d5f5a5d39e88d305e767fd1703bbc7a26e04c125ed136513bb92a7129f1b9e3166e45ace145cc5d79883
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SSDEEP
49152:OePpQE5JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE5tIuoITsdZ
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/3664-2-0x0000000004080000-0x00000000041C9000-memory.dmp family_vidar_v7 behavioral2/memory/4136-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4136-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4136-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4136-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4136-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4136-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4136-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat68EB.tmppid process 4136 kat68EB.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:
dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exedescription pid process target process PID 3664 set thread context of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat68EB.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat68EB.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat68EB.tmppid process 4136 kat68EB.tmp 4136 kat68EB.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exedescription pid process target process PID 3664 wrote to memory of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp PID 3664 wrote to memory of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp PID 3664 wrote to memory of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp PID 3664 wrote to memory of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp PID 3664 wrote to memory of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp PID 3664 wrote to memory of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp PID 3664 wrote to memory of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp PID 3664 wrote to memory of 4136 3664 dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe kat68EB.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe"C:\Users\Admin\AppData\Local\Temp\dcd9c04ee1ac196b388b4bbd8690e7d109e4572784353f228fbb03a5fe01017a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3664 -
C:\Users\Admin\AppData\Local\Temp\kat68EB.tmpC:\Users\Admin\AppData\Local\Temp\kat68EB.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4136
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat68EB.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3664-0-0x0000000002470000-0x0000000002471000-memory.dmpFilesize
4KB
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memory/3664-2-0x0000000004080000-0x00000000041C9000-memory.dmpFilesize
1.3MB
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memory/3664-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB
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memory/4136-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4136-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4136-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4136-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4136-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4136-19-0x000000001B8A0000-0x000000001BAFF000-memory.dmpFilesize
2.4MB
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memory/4136-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4136-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB