Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
01-06-2024 07:07
Static task
static1
Behavioral task
behavioral1
Sample
9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe
Resource
win7-20240221-en
General
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Target
9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe
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Size
2.0MB
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MD5
c44ebafd9c4bf611eebe81332e642791
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SHA1
53dd386db1d795789e9fc8b99882a18c26eccdd1
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SHA256
9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08
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SHA512
19c36630e92c8584f207dd93877a766770d69fb992cc3dc915ae6e6877e5379914a07be52a0a6a17668a34fb2c9ca90093a18a5993cadfc1c75d1fbe8219359f
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SSDEEP
49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ
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 behavioral2/memory/2336-2-0x0000000004020000-0x0000000004169000-memory.dmp family_vidar_v7 behavioral2/memory/4816-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4816-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4816-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4816-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4816-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4816-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4816-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat594B.tmppid Process 4816 kat594B.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:
9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exedescription pid Process procid_target PID 2336 set thread context of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat594B.tmpdescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat594B.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat594B.tmppid Process 4816 kat594B.tmp 4816 kat594B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exedescription pid Process procid_target PID 2336 wrote to memory of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83 PID 2336 wrote to memory of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83 PID 2336 wrote to memory of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83 PID 2336 wrote to memory of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83 PID 2336 wrote to memory of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83 PID 2336 wrote to memory of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83 PID 2336 wrote to memory of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83 PID 2336 wrote to memory of 4816 2336 9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe"C:\Users\Admin\AppData\Local\Temp\9204e6ef2f88a286731c299dd79d1f169f2e7d4f8dc9843bfb725a69e1659f08.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2336 -
C:\Users\Admin\AppData\Local\Temp\kat594B.tmpC:\Users\Admin\AppData\Local\Temp\kat594B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f