Analysis
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max time kernel
121s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
04-07-2024 22:43
Static task
static1
Behavioral task
behavioral1
Sample
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe
Resource
win7-20240611-en
General
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Target
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe
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Size
4.3MB
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MD5
67cef2b94174d0883a8e8b9ad9c217c7
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SHA1
d674a6454b03d5190ea685112e68a6604eabfc39
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SHA256
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7
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SHA512
bd335514641c23f96063c92783bcc2e607c7765705aafa2e742b631c102c08704b1bc77ba61dce7f2267abd5e0e4a30653a50179f86689ecf348f5eb0057ea3c
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SSDEEP
49152:WgMCMqzvDxEHJKquC8nlPCx0jdt8not+bgZV014po/8QNT9Fr1:wGdlbInoM0bBO5H
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2680-76-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-70-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-551-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
EHJJECBKKE.exepid process 1712 EHJJECBKKE.exe -
Loads dropped DLL 6 IoCs
Processes:
MSBuild.exeWerFault.exepid process 2680 MSBuild.exe 2680 MSBuild.exe 2680 MSBuild.exe 2848 WerFault.exe 2848 WerFault.exe 2848 WerFault.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exedescription pid process target process PID 1216 set thread context of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2848 1712 WerFault.exe EHJJECBKKE.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MSBuild.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2924 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
MSBuild.exepid process 2680 MSBuild.exe 2680 MSBuild.exe 2680 MSBuild.exe 2680 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exedescription pid process Token: SeDebugPrivilege 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exeMSBuild.exeEHJJECBKKE.execmd.exedescription pid process target process PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 1216 wrote to memory of 2680 1216 a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe MSBuild.exe PID 2680 wrote to memory of 1712 2680 MSBuild.exe EHJJECBKKE.exe PID 2680 wrote to memory of 1712 2680 MSBuild.exe EHJJECBKKE.exe PID 2680 wrote to memory of 1712 2680 MSBuild.exe EHJJECBKKE.exe PID 2680 wrote to memory of 1712 2680 MSBuild.exe EHJJECBKKE.exe PID 1712 wrote to memory of 2848 1712 EHJJECBKKE.exe WerFault.exe PID 1712 wrote to memory of 2848 1712 EHJJECBKKE.exe WerFault.exe PID 1712 wrote to memory of 2848 1712 EHJJECBKKE.exe WerFault.exe PID 1712 wrote to memory of 2848 1712 EHJJECBKKE.exe WerFault.exe PID 2680 wrote to memory of 1324 2680 MSBuild.exe cmd.exe PID 2680 wrote to memory of 1324 2680 MSBuild.exe cmd.exe PID 2680 wrote to memory of 1324 2680 MSBuild.exe cmd.exe PID 2680 wrote to memory of 1324 2680 MSBuild.exe cmd.exe PID 1324 wrote to memory of 2924 1324 cmd.exe timeout.exe PID 1324 wrote to memory of 2924 1324 cmd.exe timeout.exe PID 1324 wrote to memory of 2924 1324 cmd.exe timeout.exe PID 1324 wrote to memory of 2924 1324 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe"C:\Users\Admin\AppData\Local\Temp\a928fc7218f8b916a6c386f500634dc2f31772ed5da82173b257ccf4371bdee7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2680 -
C:\ProgramData\EHJJECBKKE.exe"C:\ProgramData\EHJJECBKKE.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 964⤵
- Loads dropped DLL
- Program crash
PID:2848 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DAEBKKKEHDHD" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2924
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5f6dd47fb45d0422c595ea906ebc53636
SHA16ce12688979a3983b53a9f3bf5fc82a680a0edbd
SHA256abee8531c2c91dcc99d81db66778430323502bd79585d3be8116b45acb767491
SHA512a1b2015d76489fc8fd796a2ad322ffbc98b0d42c0e8140f26576317672702a63a06dfafb37b7d30316b5f31b307ba50a6ea4e870fdc7a80943f552c59b405ff3
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5839c59ed8e1ee42952e2efce07f35f0f
SHA1e91d844e6ed405d5b6f87075a1eb16b3fe823e32
SHA25619750b2a8171f021b8c8bc2c5fc9558f66059ba28e2ef14e4d23d3aee980edc3
SHA51276126f7de9bc9400dbcd5d2245bf169ac3f292f81d52ae129beb2a53cd28b9ff3e177bff3f182ffffb1b05a6740db076c43b4f96315b127d0469d191b6137a99
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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Filesize
937KB
MD5168c5908924803d268d26965c32a5620
SHA19e0e2dc9c7e931c4ee860c32d83711c433f7b1a3
SHA2562fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449
SHA512749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1