Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 07:37
Static task
static1
Behavioral task
behavioral1
Sample
d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe
Resource
win10v2004-20240426-en
General
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Target
d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe
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Size
2.0MB
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MD5
92a95133e1e7489606b7ba9545b384c1
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SHA1
d1362543bcdbb6a4acb8d4329cee2ed68a38f694
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SHA256
d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292
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SHA512
b700991d3b8fcbdc9b8119c471934c3e29a4fa98733853fed622ad723cbb0eba26a1efaa40cf4d1edfea05c3ab2f1d6da8b9166e0d6f5e3d7a51339edaf2fb31
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SSDEEP
49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ
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/1176-1-0x0000000004070000-0x00000000041B9000-memory.dmp family_vidar_v7 behavioral1/memory/1680-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1680-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1680-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1680-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1680-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1680-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1680-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3856.tmppid process 1680 kat3856.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:
d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exedescription pid process target process PID 1176 set thread context of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3856.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3856.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3856.tmppid process 1680 kat3856.tmp 1680 kat3856.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exedescription pid process target process PID 1176 wrote to memory of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp PID 1176 wrote to memory of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp PID 1176 wrote to memory of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp PID 1176 wrote to memory of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp PID 1176 wrote to memory of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp PID 1176 wrote to memory of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp PID 1176 wrote to memory of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp PID 1176 wrote to memory of 1680 1176 d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe kat3856.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe"C:\Users\Admin\AppData\Local\Temp\d9344da45193f9e42b6ded8192aacf694a40f12436dc17aa1d4f7a70bbf22292.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3856.tmpC:\Users\Admin\AppData\Local\Temp\kat3856.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\kat3856.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1176-0-0x00000000008C0000-0x00000000008C1000-memory.dmpFilesize
4KB
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memory/1176-1-0x0000000004070000-0x00000000041B9000-memory.dmpFilesize
1.3MB
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memory/1176-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/1680-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1680-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1680-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1680-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1680-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1680-17-0x000000001DBF0000-0x000000001DE4F000-memory.dmpFilesize
2.4MB
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memory/1680-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1680-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB