Analysis
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max time kernel
143s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
15-05-2024 22:05
Static task
static1
Behavioral task
behavioral1
Sample
5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe
Resource
win10v2004-20240426-en
General
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Target
5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe
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Size
117KB
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MD5
a8e828a136789222fda0009748ad8325
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SHA1
134aae25a885b5c92cc8003ad44c8cc82fe34507
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SHA256
5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538
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SHA512
f13865fe5bf23860e591fd42a230dc844ded17ec726459e445823437519fcb567959e067dcb6b87c8712120d79718d899f3531fec63ee94dde15c477620da9ab
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SSDEEP
1536:aJUGCqveEeXdTeG4wu6oQuwEhQQWKXJR721rSTdk/cpAKdlaKrorkgA55i:aHFveEyTAK7VKXXS1GT7AKzaKrtP55i
Malware Config
Signatures
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Detects executables containing base64 encoded User Agent 7 IoCs
resource yara_rule behavioral2/memory/4020-14-0x0000000010000000-0x0000000010036000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral2/memory/4020-13-0x0000000010000000-0x0000000010036000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral2/memory/4020-12-0x0000000010000000-0x0000000010036000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral2/memory/4020-15-0x0000000010000000-0x0000000010036000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral2/memory/4020-17-0x0000000010000000-0x0000000010036000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral2/memory/4020-19-0x0000000010000000-0x0000000010036000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent behavioral2/memory/4020-20-0x0000000010000000-0x0000000010036000-memory.dmp INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent -
Blocklisted process makes network request 8 IoCs
flow pid Process 17 4020 rundll32.exe 30 4020 rundll32.exe 31 4020 rundll32.exe 32 4020 rundll32.exe 46 4020 rundll32.exe 47 4020 rundll32.exe 56 4020 rundll32.exe 71 4020 rundll32.exe -
resource yara_rule behavioral2/files/0x00030000000229e0-9.dat aspack_v212_v242 -
Deletes itself 1 IoCs
pid Process 2156 rqsve.exe -
Executes dropped EXE 1 IoCs
pid Process 2156 rqsve.exe -
Loads dropped DLL 1 IoCs
pid Process 4020 rundll32.exe -
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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\gtlalexvf\\eqqjaety.dll\",AbortProc" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\t: rundll32.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3528 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4020 rundll32.exe 4020 rundll32.exe 4020 rundll32.exe 4020 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4020 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1688 5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe 2156 rqsve.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1688 wrote to memory of 3620 1688 5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe 82 PID 1688 wrote to memory of 3620 1688 5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe 82 PID 1688 wrote to memory of 3620 1688 5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe 82 PID 3620 wrote to memory of 3528 3620 cmd.exe 84 PID 3620 wrote to memory of 3528 3620 cmd.exe 84 PID 3620 wrote to memory of 3528 3620 cmd.exe 84 PID 3620 wrote to memory of 2156 3620 cmd.exe 88 PID 3620 wrote to memory of 2156 3620 cmd.exe 88 PID 3620 wrote to memory of 2156 3620 cmd.exe 88 PID 2156 wrote to memory of 4020 2156 rqsve.exe 89 PID 2156 wrote to memory of 4020 2156 rqsve.exe 89 PID 2156 wrote to memory of 4020 2156 rqsve.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe"C:\Users\Admin\AppData\Local\Temp\5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\rqsve.exe "C:\Users\Admin\AppData\Local\Temp\5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3620 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- Runs ping.exe
PID:3528
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\??\c:\rqsve.exec:\rqsve.exe "C:\Users\Admin\AppData\Local\Temp\5374555783b3c7492b217c73a90a89fb35d41cd0f4b8dae3c38031538e0fd538.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2156 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\gtlalexvf\eqqjaety.dll",AbortProc c:\rqsve.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4020
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
118KB
MD5c8772ecde730533a86eadf9b1237a990
SHA1466a22e7365c5c498b083d85f3b80d1db0c5f372
SHA256fffa775749c1970f4d76dd88100de2c50e1a8fbcf9e75fe9fd381da21fa31665
SHA512f970a94138e7785cdf012ce7587dd7dce0bcf7935a2aaa521c1228d57c73ebc1b560fe7a1d5f55ea0a6f1580aeee8905751480e9a8f7b6860bf8c6a14cc9285e
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Filesize
87KB
MD5a2c2137ff7abf6be6bcae4252c394a69
SHA107b402104df563f9486c2eef975fee70f65a5145
SHA25637ab4b7ee8f6b61c3854af4ed4676fd0d69f0260fb1296ad75e57aa08e1eeb03
SHA5125d05ed7c55bee8f41502acaea3d41fcf4421ad641d43f0b97b4cdc8fe584983da7712c561a53b708e88391df7929914746115700ae733155418693bcec6989a9