Analysis
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max time kernel
134s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 10:22
Static task
static1
Behavioral task
behavioral1
Sample
533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe
Resource
win10v2004-20240508-en
General
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Target
533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe
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Size
1.9MB
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MD5
42995a48b6a9c41e9e7c60f53579299c
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SHA1
aff381aa725aebe5efaf695f739aae356f8fb35d
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SHA256
533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095
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SHA512
2d52697ed1ca7ed1f15bcc23d6e75ec7689ad40b0bba5123fadc9550b1867110b086219d5685fa1dc2b56ec854728b0ebd6f7c755cf68794a8602b55ad49c2de
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SSDEEP
49152:CdKfTn6vCJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn5tIuoITsdZ
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/4268-2-0x00000000040F0000-0x0000000004239000-memory.dmp family_vidar_v7 behavioral1/memory/1692-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1692-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1692-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1692-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1692-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1692-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1692-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat519A.tmppid process 1692 kat519A.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:
533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exedescription pid process target process PID 4268 set thread context of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat519A.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat519A.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat519A.tmppid process 1692 kat519A.tmp 1692 kat519A.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exedescription pid process target process PID 4268 wrote to memory of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp PID 4268 wrote to memory of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp PID 4268 wrote to memory of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp PID 4268 wrote to memory of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp PID 4268 wrote to memory of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp PID 4268 wrote to memory of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp PID 4268 wrote to memory of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp PID 4268 wrote to memory of 1692 4268 533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe kat519A.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe"C:\Users\Admin\AppData\Local\Temp\533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4268 -
C:\Users\Admin\AppData\Local\Temp\kat519A.tmpC:\Users\Admin\AppData\Local\Temp\kat519A.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1692
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat519A.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1692-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1692-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1692-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1692-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1692-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1692-20-0x000000001B7E0000-0x000000001BA3F000-memory.dmpFilesize
2.4MB
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memory/1692-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1692-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4268-0-0x00000000006E0000-0x00000000006E1000-memory.dmpFilesize
4KB
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memory/4268-2-0x00000000040F0000-0x0000000004239000-memory.dmpFilesize
1.3MB
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memory/4268-9-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB