Analysis
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max time kernel
195s -
max time network
255s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
03-06-2024 05:40
Static task
static1
Behavioral task
behavioral1
Sample
87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe
Resource
win7-20240508-en
General
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Target
87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe
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Size
2.4MB
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MD5
e35b75079c03f8536e2da425b17d3c1f
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SHA1
9738a9e337d44bdf57a926f663c45b1b73819387
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SHA256
87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4
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SHA512
381a628a429a24041383b83be5066a59b5870804e0c168e3379204ec07861fe253826dbbf2706d5723d22ef6dd8e7eb9d0e57ce33732fc1395f7568893353b81
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SSDEEP
49152:wQc81KnB/a/hNT/dFYa8aesY3Ot4N7G/:wDta/hNT/dFn0etD/
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 9 IoCs
Processes:
resource yara_rule behavioral2/memory/4760-2-0x0000000003F60000-0x00000000040AC000-memory.dmp family_vidar_v7 behavioral2/memory/520-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/520-9-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/520-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/520-16-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/520-17-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/520-34-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/520-42-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/520-47-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat612B.tmppid Process 520 kat612B.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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:
87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exedescription pid Process procid_target PID 4760 set thread context of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat612B.tmpdescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat612B.tmp -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
kat612B.tmppid Process 520 kat612B.tmp 520 kat612B.tmp 520 kat612B.tmp 520 kat612B.tmp 520 kat612B.tmp 520 kat612B.tmp 520 kat612B.tmp 520 kat612B.tmp 520 kat612B.tmp 520 kat612B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exedescription pid Process procid_target PID 4760 wrote to memory of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73 PID 4760 wrote to memory of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73 PID 4760 wrote to memory of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73 PID 4760 wrote to memory of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73 PID 4760 wrote to memory of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73 PID 4760 wrote to memory of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73 PID 4760 wrote to memory of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73 PID 4760 wrote to memory of 520 4760 87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe 73
Processes
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C:\Users\Admin\AppData\Local\Temp\87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe"C:\Users\Admin\AppData\Local\Temp\87de249f91629dfcdead09370c3821f93e93caf49e04705c8d7d1a0736af49b4.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Users\Admin\AppData\Local\Temp\kat612B.tmpC:\Users\Admin\AppData\Local\Temp\kat612B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:520
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f