Analysis
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max time kernel
132s -
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
22-05-2024 18:59
Static task
static1
Behavioral task
behavioral1
Sample
78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe
Resource
win7-20240508-en
General
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Target
78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe
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Size
2.0MB
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MD5
a67a243935174069d226856ed2339707
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SHA1
e51d9e40482fe5557c348af4c8dce899b68f882e
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SHA256
78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a
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SHA512
ff5788674bd83139c5e844d8bb90696cb7099adcd07fda6451e60d16d3b178e4b99600d2e80226fbc510394cce8a7639ae7824f97e15e3abbc84ff306d00e6c9
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SSDEEP
49152:7QzHt472D6JtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtwtIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/1404-1-0x00000000040B0000-0x00000000041F9000-memory.dmp family_vidar_v7 behavioral2/memory/4012-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4012-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4012-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4012-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4012-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4012-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4012-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
katF174.tmppid process 4012 katF174.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:
78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exedescription pid process target process PID 1404 set thread context of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
katF174.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katF174.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
katF174.tmppid process 4012 katF174.tmp 4012 katF174.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exedescription pid process target process PID 1404 wrote to memory of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp PID 1404 wrote to memory of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp PID 1404 wrote to memory of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp PID 1404 wrote to memory of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp PID 1404 wrote to memory of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp PID 1404 wrote to memory of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp PID 1404 wrote to memory of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp PID 1404 wrote to memory of 4012 1404 78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe katF174.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe"C:\Users\Admin\AppData\Local\Temp\78889e694b687e2295be269aa3590ce7a10b154091e11fa48b37fbc47c0abb5a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\katF174.tmpC:\Users\Admin\AppData\Local\Temp\katF174.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 --field-trial-handle=4036,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=1960 /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\katF174.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1404-0-0x00000000006F0000-0x00000000006F1000-memory.dmpFilesize
4KB
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memory/1404-1-0x00000000040B0000-0x00000000041F9000-memory.dmpFilesize
1.3MB
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memory/1404-9-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB
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memory/4012-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4012-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4012-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4012-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4012-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4012-17-0x000000001DC60000-0x000000001DEBF000-memory.dmpFilesize
2.4MB
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memory/4012-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4012-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB