Analysis
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max time kernel
143s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 10:11
Static task
static1
Behavioral task
behavioral1
Sample
976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe
Resource
win10v2004-20240226-en
General
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Target
976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe
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Size
2.0MB
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MD5
c83362c925fc54cfff05527b2ad83895
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SHA1
7f257ae61d0a6d5e79500789780a2bca87796d55
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SHA256
976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477
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SHA512
8effc1f3b5da568349393427a0464c75a8a39fd44d5c26ea46c42e7ee6c1e8b01184a39e587301a6e5e0619595c6e4dd5db784552c55a718e6178051e51fce18
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SSDEEP
49152:OePpQE1JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE1tIuoITsdZ
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/4284-1-0x00000000041A0000-0x00000000042E9000-memory.dmp family_vidar_v7 behavioral1/memory/1584-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1584-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1584-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1584-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1584-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1584-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1584-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1584-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat1CCA.tmppid process 1584 kat1CCA.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:
976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exedescription pid process target process PID 4284 set thread context of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat1CCA.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat1CCA.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat1CCA.tmppid process 1584 kat1CCA.tmp 1584 kat1CCA.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exedescription pid process target process PID 4284 wrote to memory of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp PID 4284 wrote to memory of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp PID 4284 wrote to memory of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp PID 4284 wrote to memory of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp PID 4284 wrote to memory of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp PID 4284 wrote to memory of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp PID 4284 wrote to memory of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp PID 4284 wrote to memory of 1584 4284 976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe kat1CCA.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe"C:\Users\Admin\AppData\Local\Temp\976354b1243ffe869c3287ed8c53583698c47f0d416415d30f4f7da5f5850477.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat1CCA.tmpC:\Users\Admin\AppData\Local\Temp\kat1CCA.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1412 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat1CCA.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1584-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1584-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1584-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1584-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1584-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1584-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1584-21-0x000000001DC90000-0x000000001DEEF000-memory.dmpFilesize
2.4MB
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memory/1584-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1584-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4284-1-0x00000000041A0000-0x00000000042E9000-memory.dmpFilesize
1.3MB
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memory/4284-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB
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memory/4284-0-0x0000000000900000-0x0000000000901000-memory.dmpFilesize
4KB