Analysis
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max time kernel
90s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-05-2024 06:14
Static task
static1
Behavioral task
behavioral1
Sample
70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe
Resource
win10v2004-20240508-en
General
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Target
70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe
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Size
2.0MB
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MD5
3b8d5a397be9796ac909d80c99711d19
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SHA1
caba598ae4dcbd3b01733a0735f3f1df5b9532c4
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SHA256
70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47
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SHA512
a2b0734ecf7a235f0da30d0a607dc5d5c0f0c5eb4679f1ea604faca2abf31523c97d72765115e30737dab89279451f06d2a39992d98b604864e5668ae190254e
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SSDEEP
49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ
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/4268-2-0x0000000004090000-0x00000000041D9000-memory.dmp family_vidar_v7 behavioral2/memory/1700-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1700-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4FC6.tmppid process 1700 kat4FC6.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:
70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exedescription pid process target process PID 4268 set thread context of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4FC6.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4FC6.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4FC6.tmppid process 1700 kat4FC6.tmp 1700 kat4FC6.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exedescription pid process target process PID 4268 wrote to memory of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp PID 4268 wrote to memory of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp PID 4268 wrote to memory of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp PID 4268 wrote to memory of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp PID 4268 wrote to memory of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp PID 4268 wrote to memory of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp PID 4268 wrote to memory of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp PID 4268 wrote to memory of 1700 4268 70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe kat4FC6.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe"C:\Users\Admin\AppData\Local\Temp\70328dcc6c827d7906bc929334f43a0bbf0bd8b0ee315a336ee4cf30f2021e47.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4FC6.tmpC:\Users\Admin\AppData\Local\Temp\kat4FC6.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\kat4FC6.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1700-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-22-0x00000000260E0000-0x000000002633F000-memory.dmpFilesize
2.4MB
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memory/1700-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1700-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4268-0-0x0000000002480000-0x0000000002481000-memory.dmpFilesize
4KB
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memory/4268-2-0x0000000004090000-0x00000000041D9000-memory.dmpFilesize
1.3MB
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memory/4268-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB