Analysis
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max time kernel
148s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-05-2024 22:45
Static task
static1
Behavioral task
behavioral1
Sample
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe
Resource
win10v2004-20240426-en
General
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Target
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe
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Size
1.9MB
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MD5
3a760aed3f905fad061bc76c8a65f5bb
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SHA1
e723ac950e6f553702cc7281b707d31f86b8db54
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SHA256
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4
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SHA512
ad71c45ed493b4001a8bf9c9c99c45cda1e5813518492f75b65d18bb7f4afd50a6ec1fe9629b1e5e64bb29b3f566e0787d356927721338f98fa11f2a3bd59bb2
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SSDEEP
49152:CdKfTn6vWJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ
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 14 IoCs
Processes:
resource yara_rule behavioral2/memory/2376-2-0x0000000004020000-0x0000000004169000-memory.dmp family_vidar_v7 behavioral2/memory/1160-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-53-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-69-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1160-72-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat733C.tmppid process 1160 kat733C.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 local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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:
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exedescription pid process target process PID 2376 set thread context of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat733C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat733C.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 5076 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat733C.tmppid process 1160 kat733C.tmp 1160 kat733C.tmp 1160 kat733C.tmp 1160 kat733C.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exekat733C.tmpcmd.exedescription pid process target process PID 2376 wrote to memory of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp PID 2376 wrote to memory of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp PID 2376 wrote to memory of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp PID 2376 wrote to memory of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp PID 2376 wrote to memory of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp PID 2376 wrote to memory of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp PID 2376 wrote to memory of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp PID 2376 wrote to memory of 1160 2376 6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe kat733C.tmp PID 1160 wrote to memory of 4668 1160 kat733C.tmp cmd.exe PID 1160 wrote to memory of 4668 1160 kat733C.tmp cmd.exe PID 1160 wrote to memory of 4668 1160 kat733C.tmp cmd.exe PID 4668 wrote to memory of 5076 4668 cmd.exe timeout.exe PID 4668 wrote to memory of 5076 4668 cmd.exe timeout.exe PID 4668 wrote to memory of 5076 4668 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe"C:\Users\Admin\AppData\Local\Temp\6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2376 -
C:\Users\Admin\AppData\Local\Temp\kat733C.tmpC:\Users\Admin\AppData\Local\Temp\kat733C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat733C.tmp" & rd /s /q "C:\ProgramData\BFIDGDAKFHIE" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4668 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:5076
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat733C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1160-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-20-0x000000001B860000-0x000000001BABF000-memory.dmpFilesize
2.4MB
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memory/1160-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-72-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-69-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-53-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1160-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2376-2-0x0000000004020000-0x0000000004169000-memory.dmpFilesize
1.3MB
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memory/2376-0-0x0000000002430000-0x0000000002431000-memory.dmpFilesize
4KB
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memory/2376-9-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB