Analysis
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max time kernel
135s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 19:11
Static task
static1
Behavioral task
behavioral1
Sample
83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe
Resource
win10v2004-20240508-en
General
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Target
83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe
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Size
2.0MB
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MD5
275b754d29bc47c0bb6b107d300dc4a7
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SHA1
27e28b2d9f7d50c9efdcc6302d85c05402092c4e
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SHA256
83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90
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SHA512
0d68e747bb3b694b681ffce36d94fdf0852e6621a6aaac2b6b4939a0f221451d3575ec601d550b6a38e292981a8b3545301c49b246992feee97e9d09d43baece
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SSDEEP
49152:s4K3x1vUaJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18atIuoITsdZ
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/2360-2-0x0000000004030000-0x0000000004179000-memory.dmp family_vidar_v7 behavioral1/memory/3052-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3052-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3052-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3052-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3052-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3052-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3052-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
katF165.tmppid process 3052 katF165.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:
83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exedescription pid process target process PID 2360 set thread context of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
katF165.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katF165.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
katF165.tmppid process 3052 katF165.tmp 3052 katF165.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exedescription pid process target process PID 2360 wrote to memory of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp PID 2360 wrote to memory of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp PID 2360 wrote to memory of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp PID 2360 wrote to memory of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp PID 2360 wrote to memory of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp PID 2360 wrote to memory of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp PID 2360 wrote to memory of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp PID 2360 wrote to memory of 3052 2360 83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe katF165.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe"C:\Users\Admin\AppData\Local\Temp\83d8ff013b77bccdaa0a72864ff4a37db218ab1e1140c2c4f142109fc1a14b90.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Users\Admin\AppData\Local\Temp\katF165.tmpC:\Users\Admin\AppData\Local\Temp\katF165.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3052
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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 --field-trial-handle=4204,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=1960 /prefetch:81⤵PID:2784
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\katF165.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2360-0-0x00000000008D0000-0x00000000008D1000-memory.dmpFilesize
4KB
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memory/2360-2-0x0000000004030000-0x0000000004179000-memory.dmpFilesize
1.3MB
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memory/2360-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/3052-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3052-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3052-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3052-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3052-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3052-17-0x000000001DBC0000-0x000000001DE1F000-memory.dmpFilesize
2.4MB
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memory/3052-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3052-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB