Analysis
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max time kernel
142s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 12:02
Static task
static1
Behavioral task
behavioral1
Sample
e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe
Resource
win10v2004-20240226-en
General
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Target
e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe
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Size
2.0MB
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MD5
65f9a7c8cf59598e48faceeffeb4a0bd
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SHA1
7ba1258397afbc5579e95089069594acaddc5f19
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SHA256
e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd
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SHA512
e4d87e73c2e1755b3784d818a938d9af2114c5ec3811dafb67fc4e19c1435c21a436aacf224b55d0dc15fe4295a14421f0fe597a3c55e6f8f1b80711ecacf292
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SSDEEP
49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ
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/3192-1-0x00000000041E0000-0x0000000004329000-memory.dmp family_vidar_v7 behavioral1/memory/1364-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1364-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1364-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1364-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1364-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1364-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1364-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1364-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat7BB.tmppid process 1364 kat7BB.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:
e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exedescription pid process target process PID 3192 set thread context of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7BB.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7BB.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat7BB.tmppid process 1364 kat7BB.tmp 1364 kat7BB.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exedescription pid process target process PID 3192 wrote to memory of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp PID 3192 wrote to memory of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp PID 3192 wrote to memory of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp PID 3192 wrote to memory of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp PID 3192 wrote to memory of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp PID 3192 wrote to memory of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp PID 3192 wrote to memory of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp PID 3192 wrote to memory of 1364 3192 e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe kat7BB.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe"C:\Users\Admin\AppData\Local\Temp\e706c8ab0c03cee6bc4b6e979606789f22c105556be0bc3a7b7104da044681bd.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat7BB.tmpC:\Users\Admin\AppData\Local\Temp\kat7BB.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=3720 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --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\kat7BB.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1364-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1364-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1364-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1364-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1364-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1364-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1364-18-0x000000001B7D0000-0x000000001BA2F000-memory.dmpFilesize
2.4MB
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memory/1364-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1364-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3192-1-0x00000000041E0000-0x0000000004329000-memory.dmpFilesize
1.3MB
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memory/3192-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/3192-0-0x00000000023A0000-0x00000000023A1000-memory.dmpFilesize
4KB