Analysis
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max time kernel
142s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 02:54
Static task
static1
Behavioral task
behavioral1
Sample
fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe
Resource
win10v2004-20240226-en
General
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Target
fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe
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Size
2.0MB
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MD5
6b79fe6c5de0c877847fd148f542b8a0
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SHA1
7941cff1add480406a713f4e519ece6c49381b8d
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SHA256
fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512
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SHA512
cec629c2bd309d52676021ca25dad2e0339132d42bcda9176f9a73c1e3cbf7ae8d9f8db19d354a4084571000fe8ccbe16a26bf17acfbf5bf64cd0fd6df531ff6
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SSDEEP
49152:7QzHt472DkJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt+tIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/1444-1-0x0000000004130000-0x0000000004279000-memory.dmp family_vidar_v7 behavioral1/memory/3920-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3920-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3920-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3920-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3920-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3920-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3920-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3515.tmppid process 3920 kat3515.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:
fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exedescription pid process target process PID 1444 set thread context of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3515.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3515.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3515.tmppid process 3920 kat3515.tmp 3920 kat3515.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exedescription pid process target process PID 1444 wrote to memory of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp PID 1444 wrote to memory of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp PID 1444 wrote to memory of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp PID 1444 wrote to memory of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp PID 1444 wrote to memory of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp PID 1444 wrote to memory of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp PID 1444 wrote to memory of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp PID 1444 wrote to memory of 3920 1444 fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe kat3515.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe"C:\Users\Admin\AppData\Local\Temp\fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3515.tmpC:\Users\Admin\AppData\Local\Temp\kat3515.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=4156 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --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\kat3515.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1444-0-0x00000000008E0000-0x00000000008E1000-memory.dmpFilesize
4KB
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memory/1444-1-0x0000000004130000-0x0000000004279000-memory.dmpFilesize
1.3MB
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memory/1444-8-0x0000000000400000-0x0000000000601000-memory.dmpFilesize
2.0MB
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memory/3920-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3920-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3920-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3920-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3920-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3920-17-0x000000001B7F0000-0x000000001BA4F000-memory.dmpFilesize
2.4MB
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memory/3920-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3920-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB