Analysis
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max time kernel
150s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09-11-2024 19:05
Static task
static1
Behavioral task
behavioral1
Sample
3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe
Resource
win10v2004-20241007-en
General
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Target
3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe
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Size
416KB
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MD5
ae00ad0a951b7f5fd34acd8c1d3cb1c3
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SHA1
d15761a9272edd220b76ce2063714a09cca3c4e7
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SHA256
3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f
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SHA512
a16a61cc3625279c381a05acdc50e9e4c8ebb296884cac3000f0702bfc30bdcdd3d971fcd6db4c35469be4cd8d7ba9544f01cbcabb7a35ad3ce0d76d905869cf
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SSDEEP
6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse
Malware Config
Signatures
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Blocklisted process makes network request 8 IoCs
Processes:
rundll32.exeflow pid process 14 1740 rundll32.exe 20 1740 rundll32.exe 21 1740 rundll32.exe 22 1740 rundll32.exe 36 1740 rundll32.exe 37 1740 rundll32.exe 41 1740 rundll32.exe 46 1740 rundll32.exe -
Deletes itself 1 IoCs
Processes:
dbrayxl.exepid process 624 dbrayxl.exe -
Executes dropped EXE 1 IoCs
Processes:
dbrayxl.exepid process 624 dbrayxl.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 1740 rundll32.exe -
Reads user/profile data of web browsers 3 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
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\hioztq\\jjvdy.dll\",Verify" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
rundll32.exedescription ioc process File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\p: 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) \??\w: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\u: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\y: 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.
Processes:
rundll32.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
rundll32.exepid process 1740 rundll32.exe -
Drops file in Program Files directory 2 IoCs
Processes:
dbrayxl.exedescription ioc process File opened for modification \??\c:\Program Files\hioztq dbrayxl.exe File created \??\c:\Program Files\hioztq\jjvdy.dll dbrayxl.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.execmd.exePING.EXEdbrayxl.exerundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dbrayxl.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
Processes:
cmd.exePING.EXEpid process 2876 cmd.exe 1368 PING.EXE -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription 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
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
rundll32.exepid process 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
rundll32.exedescription pid process Token: SeDebugPrivilege 1740 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exedbrayxl.exepid process 740 3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe 624 dbrayxl.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.execmd.exedbrayxl.exedescription pid process target process PID 740 wrote to memory of 2876 740 3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe cmd.exe PID 740 wrote to memory of 2876 740 3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe cmd.exe PID 740 wrote to memory of 2876 740 3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe cmd.exe PID 2876 wrote to memory of 1368 2876 cmd.exe PING.EXE PID 2876 wrote to memory of 1368 2876 cmd.exe PING.EXE PID 2876 wrote to memory of 1368 2876 cmd.exe PING.EXE PID 2876 wrote to memory of 624 2876 cmd.exe dbrayxl.exe PID 2876 wrote to memory of 624 2876 cmd.exe dbrayxl.exe PID 2876 wrote to memory of 624 2876 cmd.exe dbrayxl.exe PID 624 wrote to memory of 1740 624 dbrayxl.exe rundll32.exe PID 624 wrote to memory of 1740 624 dbrayxl.exe rundll32.exe PID 624 wrote to memory of 1740 624 dbrayxl.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe"C:\Users\Admin\AppData\Local\Temp\3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:740 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\dbrayxl.exe "C:\Users\Admin\AppData\Local\Temp\3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1368 -
C:\Users\Admin\AppData\Local\Temp\dbrayxl.exeC:\Users\Admin\AppData\Local\Temp\\dbrayxl.exe "C:\Users\Admin\AppData\Local\Temp\3a698dd58a116915f6a48fe8423a5a8e45f528ac2ce1bd0e6a822950955ad99f.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:624 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\Program Files\hioztq\jjvdy.dll",Verify C:\Users\Admin\AppData\Local\Temp\dbrayxl.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)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1740
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
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
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Filesize
416KB
MD585e0fdee06d50906104eba53d0724fcb
SHA186c808a3c7a11920f8a4cd017e350bad0e8d0c0e
SHA25678a727d1ab9cdfde82c5ab41221782596b86cbeb292d1ce3f4745543dc5395a7
SHA512e44315b85e6dca73509f26537ce4ad1e22dec9b04144c3ed3b8a40c23af613c535e3461f73e16c1cea8104ae3fb6ce9bb05fbe3b90a26495e678f79651ab1e22
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Filesize
228KB
MD5373f0e827f6e55594445c8ac8e5e15ff
SHA1734f6b405d39351b91cfeb71973ecb47d94136de
SHA256b960a3a53541237b71dba0cfd8f00a4e2718584b345082aabd43ff6e34f64766
SHA512304133fb595660e0cfdcca2e4116e14f209de71850194ba149c69d194d8d46d77f014395d676ddb8d85591fa5ad9c15a3e4e7f5ef8746449a069a373319216e7