Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 04:54
Static task
static1
Behavioral task
behavioral1
Sample
bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe
Resource
win10v2004-20240508-en
General
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Target
bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe
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Size
2.0MB
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MD5
045ec68331d8aa84163e75043a68e39c
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SHA1
5bfd66ef2287faaf38b6faed332be7beefb8ac9d
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SHA256
bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a
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SHA512
529d52d89e2a71146bbcdc5c405481812ae5e4ef419d751594c6738fb0e548114b464cc122e9072b8c922a691c2fdb5bb7535a6f2529150e9f4ff91b4183f372
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SSDEEP
49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ
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 9 IoCs
Processes:
resource yara_rule behavioral1/memory/3632-2-0x0000000004170000-0x00000000042B9000-memory.dmp family_vidar_v7 behavioral1/memory/2900-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2900-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2900-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2900-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2900-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2900-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2900-48-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2900-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4381.tmppid process 2900 kat4381.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:
bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exedescription pid process target process PID 3632 set thread context of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4381.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4381.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4381.tmppid process 2900 kat4381.tmp 2900 kat4381.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exedescription pid process target process PID 3632 wrote to memory of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp PID 3632 wrote to memory of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp PID 3632 wrote to memory of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp PID 3632 wrote to memory of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp PID 3632 wrote to memory of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp PID 3632 wrote to memory of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp PID 3632 wrote to memory of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp PID 3632 wrote to memory of 2900 3632 bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe kat4381.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe"C:\Users\Admin\AppData\Local\Temp\bdef7daffe1b0ab965c1f56604c959ed9b113fdae806dfea2e49930a9494163a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4381.tmpC:\Users\Admin\AppData\Local\Temp\kat4381.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\kat4381.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2900-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2900-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2900-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2900-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2900-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2900-17-0x000000001B730000-0x000000001B98F000-memory.dmpFilesize
2.4MB
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memory/2900-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2900-48-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2900-50-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3632-2-0x0000000004170000-0x00000000042B9000-memory.dmpFilesize
1.3MB
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memory/3632-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/3632-0-0x00000000023A0000-0x00000000023A1000-memory.dmpFilesize
4KB