Analysis
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max time kernel
112s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
09-11-2024 23:03
Static task
static1
Behavioral task
behavioral1
Sample
5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe
Resource
win10v2004-20241007-en
General
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Target
5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe
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Size
158KB
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MD5
9f5a394f9c6239d569ac1beed020c9d0
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SHA1
6fc5c6d156798c1a4c4d8a5086b1e79eb0734289
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SHA256
5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1
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SHA512
391aa0845d31534421073cef761c98354b1381d9463fcdc65874691fd2b58e5c166e3719717a208e1e8d1f063ac656987308d14c8f841622c4e8e9a134c06e26
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SSDEEP
3072:oZpYg19EeiLLmjempGuCYooEK1JWaCItULG3rt2Wcora4dIM:OPjEl6jLiQ1JW+Oy3p/9
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
Processes:
resource yara_rule \??\c:\Program Files\rxgbcjlh\tcrcuj.dll acprotect -
Deletes itself 1 IoCs
Processes:
qvjru.exepid process 2584 qvjru.exe -
Executes dropped EXE 2 IoCs
Processes:
qvjru.exetcrcuj.exepid process 2584 qvjru.exe 2304 tcrcuj.exe -
Loads dropped DLL 7 IoCs
Processes:
cmd.exeqvjru.exetcrcuj.exepid process 2132 cmd.exe 2132 cmd.exe 2584 qvjru.exe 2304 tcrcuj.exe 2304 tcrcuj.exe 2304 tcrcuj.exe 2304 tcrcuj.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:
tcrcuj.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\Linycpy = "c:\\Program Files\\rxgbcjlh\\tcrcuj.exe \"c:\\Program Files\\rxgbcjlh\\tcrcuj.dll\",SetHandle" tcrcuj.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
tcrcuj.exedescription ioc process File opened (read-only) \??\b: tcrcuj.exe File opened (read-only) \??\m: tcrcuj.exe File opened (read-only) \??\o: tcrcuj.exe File opened (read-only) \??\a: tcrcuj.exe File opened (read-only) \??\i: tcrcuj.exe File opened (read-only) \??\k: tcrcuj.exe File opened (read-only) \??\l: tcrcuj.exe File opened (read-only) \??\q: tcrcuj.exe File opened (read-only) \??\x: tcrcuj.exe File opened (read-only) \??\z: tcrcuj.exe File opened (read-only) \??\n: tcrcuj.exe File opened (read-only) \??\s: tcrcuj.exe File opened (read-only) \??\u: tcrcuj.exe File opened (read-only) \??\v: tcrcuj.exe File opened (read-only) \??\w: tcrcuj.exe File opened (read-only) \??\e: tcrcuj.exe File opened (read-only) \??\g: tcrcuj.exe File opened (read-only) \??\h: tcrcuj.exe File opened (read-only) \??\j: tcrcuj.exe File opened (read-only) \??\p: tcrcuj.exe File opened (read-only) \??\r: tcrcuj.exe File opened (read-only) \??\t: tcrcuj.exe File opened (read-only) \??\y: tcrcuj.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:
tcrcuj.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 tcrcuj.exe -
Drops file in Program Files directory 4 IoCs
Processes:
qvjru.exedescription ioc process File opened for modification \??\c:\Program Files\rxgbcjlh qvjru.exe File created \??\c:\Program Files\rxgbcjlh\tcrcuj.dll qvjru.exe File created \??\c:\Program Files\rxgbcjlh\tcrcuj.exe qvjru.exe File opened for modification \??\c:\Program Files\rxgbcjlh\tcrcuj.exe qvjru.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:
5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.execmd.exePING.EXEqvjru.exetcrcuj.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.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 qvjru.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tcrcuj.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 2132 cmd.exe 2432 PING.EXE -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
tcrcuj.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 tcrcuj.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString tcrcuj.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
tcrcuj.exepid process 2304 tcrcuj.exe 2304 tcrcuj.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
tcrcuj.exedescription pid process Token: SeDebugPrivilege 2304 tcrcuj.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exeqvjru.exepid process 2084 5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe 2584 qvjru.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.execmd.exeqvjru.exedescription pid process target process PID 2084 wrote to memory of 2132 2084 5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe cmd.exe PID 2084 wrote to memory of 2132 2084 5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe cmd.exe PID 2084 wrote to memory of 2132 2084 5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe cmd.exe PID 2084 wrote to memory of 2132 2084 5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe cmd.exe PID 2132 wrote to memory of 2432 2132 cmd.exe PING.EXE PID 2132 wrote to memory of 2432 2132 cmd.exe PING.EXE PID 2132 wrote to memory of 2432 2132 cmd.exe PING.EXE PID 2132 wrote to memory of 2432 2132 cmd.exe PING.EXE PID 2132 wrote to memory of 2584 2132 cmd.exe qvjru.exe PID 2132 wrote to memory of 2584 2132 cmd.exe qvjru.exe PID 2132 wrote to memory of 2584 2132 cmd.exe qvjru.exe PID 2132 wrote to memory of 2584 2132 cmd.exe qvjru.exe PID 2584 wrote to memory of 2304 2584 qvjru.exe tcrcuj.exe PID 2584 wrote to memory of 2304 2584 qvjru.exe tcrcuj.exe PID 2584 wrote to memory of 2304 2584 qvjru.exe tcrcuj.exe PID 2584 wrote to memory of 2304 2584 qvjru.exe tcrcuj.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe"C:\Users\Admin\AppData\Local\Temp\5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2084 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qvjru.exe "C:\Users\Admin\AppData\Local\Temp\5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2132 -
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:2432 -
C:\Users\Admin\AppData\Local\Temp\qvjru.exeC:\Users\Admin\AppData\Local\Temp\\qvjru.exe "C:\Users\Admin\AppData\Local\Temp\5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2584 -
\??\c:\Program Files\rxgbcjlh\tcrcuj.exe"c:\Program Files\rxgbcjlh\tcrcuj.exe" "c:\Program Files\rxgbcjlh\tcrcuj.dll",SetHandle C:\Users\Admin\AppData\Local\Temp\qvjru.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2304
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
128KB
MD59f2d64a2936f4932418fac30369afc52
SHA1a55e215dd59602c653dcc4b7804060ae781597c6
SHA256acca07ef34919fcdeedcda6e44e6819be083beaa35f91a661d1d7f072f0d45e7
SHA5126cf4a551dd66d30ca1d7cf5390b0578eacaa53fdf8eaf66016d69b2ef3d85e1a97c254955b3b1fc226fc3b992ea5bb7de7764a5a29ab73f749529e6985f4aa60
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
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Filesize
158KB
MD5d35148e80f52181f2d5516ea453a9813
SHA1069c6edef518c5a136abb508a9823fc46567bc5f
SHA256e26a7cf31e08d53c41d6e6f0c34f1ba26297892844368f729ee864c01678396b
SHA512a76bc5b00321d03d28570c195091574a133e454328889d61af110a5c92581611a42a0b0d90632ed48d577206e55d6bd6a4c79135cf839d562935ad9d93a424be