Analysis
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max time kernel
133s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
03/06/2024, 05:27
Static task
static1
Behavioral task
behavioral1
Sample
d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe
Resource
win10v2004-20240508-en
General
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Target
d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe
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Size
2.4MB
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MD5
e3ed1d1fc684a58bcb6b319b2660796b
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SHA1
efe295ada71c63daebeb83b64faa0e10df6e541b
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SHA256
d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048
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SHA512
c0de3f17fd64962e200cc61b4bf14ab6c19dd8fc5fd1d5a759d2e7d4bee0e3d20412de5f4bb768977dc37ae8161186a56dd38c732bbff6a7144098c9052fbbf8
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SSDEEP
49152:wQc81KnB/a/hNT/ddYa8aesY3Ot4N7G/:wDta/hNT/ddn0etD/
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269
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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
resource yara_rule behavioral1/memory/720-2-0x00000000029D0000-0x0000000002B1C000-memory.dmp family_vidar_v7 behavioral1/memory/4520-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/4520-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/4520-9-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/4520-13-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/4520-14-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/4520-31-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/4520-32-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 4520 katF194.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
description pid Process procid_target PID 720 set thread context of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katF194.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4520 katF194.tmp 4520 katF194.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 720 wrote to memory of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94 PID 720 wrote to memory of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94 PID 720 wrote to memory of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94 PID 720 wrote to memory of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94 PID 720 wrote to memory of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94 PID 720 wrote to memory of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94 PID 720 wrote to memory of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94 PID 720 wrote to memory of 4520 720 d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe"C:\Users\Admin\AppData\Local\Temp\d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:720 -
C:\Users\Admin\AppData\Local\Temp\katF194.tmpC:\Users\Admin\AppData\Local\Temp\katF194.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4520
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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=4104,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:81⤵PID:4412
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f