Analysis
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max time kernel
129s -
max time network
99s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 17:29
Static task
static1
Behavioral task
behavioral1
Sample
e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe
Resource
win10v2004-20240426-en
General
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Target
e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe
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Size
2.0MB
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MD5
1465b829a87207810a81018ba164a600
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SHA1
a74c346ed58145ee48cf622e089ddb291a22753b
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SHA256
e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc
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SHA512
de17c26f64f8524e13757bd2e362c852b7bebbdb150e51224c2b403b9de24992f2a3b1fb45a50e7b4b8598f247712cf9aa9bd9a668cd2bbc88dd8e927c77a400
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SSDEEP
49152:s4K3x1vU2JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex182tIuoITsdZ
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/5312-2-0x00000000040B0000-0x00000000041F9000-memory.dmp family_vidar_v7 behavioral1/memory/1984-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1984-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1984-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1984-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1984-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1984-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1984-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat320C.tmppid process 1984 kat320C.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:
e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exedescription pid process target process PID 5312 set thread context of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat320C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat320C.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat320C.tmppid process 1984 kat320C.tmp 1984 kat320C.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exedescription pid process target process PID 5312 wrote to memory of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp PID 5312 wrote to memory of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp PID 5312 wrote to memory of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp PID 5312 wrote to memory of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp PID 5312 wrote to memory of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp PID 5312 wrote to memory of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp PID 5312 wrote to memory of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp PID 5312 wrote to memory of 1984 5312 e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe kat320C.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe"C:\Users\Admin\AppData\Local\Temp\e25b296ee0cbbaba810d1b2a4d53d5de358bd487403085f91a2f5087157a61cc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5312 -
C:\Users\Admin\AppData\Local\Temp\kat320C.tmpC:\Users\Admin\AppData\Local\Temp\kat320C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1984
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat320C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1984-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1984-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1984-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1984-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1984-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1984-17-0x000000001DBD0000-0x000000001DE2F000-memory.dmpFilesize
2.4MB
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memory/1984-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1984-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/5312-0-0x00000000007B0000-0x00000000007B1000-memory.dmpFilesize
4KB
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memory/5312-2-0x00000000040B0000-0x00000000041F9000-memory.dmpFilesize
1.3MB
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memory/5312-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB