Analysis
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max time kernel
142s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
09-11-2024 21:01
Static task
static1
Behavioral task
behavioral1
Sample
31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe
Resource
win10v2004-20241007-en
General
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Target
31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe
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Size
612KB
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MD5
37b0bf8deb5f81a3ec3421ca00fad8b8
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SHA1
91c596ea171011327a8d5cef9f7e9a3e1fe469c8
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SHA256
31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb
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SHA512
a38624bdc3205965d5c8ec9c3b0d9c541df267973673dd4c0dfede3b47d90bc05ab15a9f2738cc3ee48792557552ca8378fc886c853c431dbd1b11bd2ea15b09
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SSDEEP
12288:EVRTE3het1yJh2HduH7GqjTyiVRTE3het1yJh2HduH7GqjTy:IX1AwHsH7hTyOX1AwHsH7hTy
Malware Config
Signatures
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Deletes itself 1 IoCs
Processes:
bjcxis.exepid process 2388 bjcxis.exe -
Executes dropped EXE 2 IoCs
Processes:
bjcxis.exejgx.exepid process 2388 bjcxis.exe 2880 jgx.exe -
Loads dropped DLL 7 IoCs
Processes:
cmd.exebjcxis.exejgx.exepid process 2188 cmd.exe 2188 cmd.exe 2388 bjcxis.exe 2880 jgx.exe 2880 jgx.exe 2880 jgx.exe 2880 jgx.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:
jgx.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\SHR = "c:\\Program Files\\pbztam\\jgx.exe \"c:\\Program Files\\pbztam\\jgxhn.dll\",Scheduler" jgx.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
jgx.exedescription ioc process File opened (read-only) \??\i: jgx.exe File opened (read-only) \??\l: jgx.exe File opened (read-only) \??\m: jgx.exe File opened (read-only) \??\p: jgx.exe File opened (read-only) \??\r: jgx.exe File opened (read-only) \??\s: jgx.exe File opened (read-only) \??\y: jgx.exe File opened (read-only) \??\e: jgx.exe File opened (read-only) \??\g: jgx.exe File opened (read-only) \??\j: jgx.exe File opened (read-only) \??\o: jgx.exe File opened (read-only) \??\a: jgx.exe File opened (read-only) \??\h: jgx.exe File opened (read-only) \??\t: jgx.exe File opened (read-only) \??\v: jgx.exe File opened (read-only) \??\x: jgx.exe File opened (read-only) \??\z: jgx.exe File opened (read-only) \??\b: jgx.exe File opened (read-only) \??\k: jgx.exe File opened (read-only) \??\n: jgx.exe File opened (read-only) \??\q: jgx.exe File opened (read-only) \??\u: jgx.exe File opened (read-only) \??\w: jgx.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:
jgx.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 jgx.exe -
Drops file in Program Files directory 4 IoCs
Processes:
bjcxis.exedescription ioc process File opened for modification \??\c:\Program Files\pbztam bjcxis.exe File created \??\c:\Program Files\pbztam\jgxhn.dll bjcxis.exe File created \??\c:\Program Files\pbztam\jgx.exe bjcxis.exe File opened for modification \??\c:\Program Files\pbztam\jgx.exe bjcxis.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:
bjcxis.exejgx.exe31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.execmd.exePING.EXEdescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bjcxis.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jgx.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.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 2188 cmd.exe 2076 PING.EXE -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
jgx.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 jgx.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString jgx.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
jgx.exepid process 2880 jgx.exe 2880 jgx.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
jgx.exedescription pid process Token: SeDebugPrivilege 2880 jgx.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exebjcxis.exepid process 2212 31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe 2388 bjcxis.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.execmd.exebjcxis.exedescription pid process target process PID 2212 wrote to memory of 2188 2212 31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe cmd.exe PID 2212 wrote to memory of 2188 2212 31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe cmd.exe PID 2212 wrote to memory of 2188 2212 31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe cmd.exe PID 2212 wrote to memory of 2188 2212 31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe cmd.exe PID 2188 wrote to memory of 2076 2188 cmd.exe PING.EXE PID 2188 wrote to memory of 2076 2188 cmd.exe PING.EXE PID 2188 wrote to memory of 2076 2188 cmd.exe PING.EXE PID 2188 wrote to memory of 2076 2188 cmd.exe PING.EXE PID 2188 wrote to memory of 2388 2188 cmd.exe bjcxis.exe PID 2188 wrote to memory of 2388 2188 cmd.exe bjcxis.exe PID 2188 wrote to memory of 2388 2188 cmd.exe bjcxis.exe PID 2188 wrote to memory of 2388 2188 cmd.exe bjcxis.exe PID 2388 wrote to memory of 2880 2388 bjcxis.exe jgx.exe PID 2388 wrote to memory of 2880 2388 bjcxis.exe jgx.exe PID 2388 wrote to memory of 2880 2388 bjcxis.exe jgx.exe PID 2388 wrote to memory of 2880 2388 bjcxis.exe jgx.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe"C:\Users\Admin\AppData\Local\Temp\31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2212 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\bjcxis.exe "C:\Users\Admin\AppData\Local\Temp\31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2188 -
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:2076 -
C:\Users\Admin\AppData\Local\Temp\bjcxis.exeC:\Users\Admin\AppData\Local\Temp\\bjcxis.exe "C:\Users\Admin\AppData\Local\Temp\31621debc461a0a11d643c3eb72ecf66463ca973e6afb97babb7ab505b9021fb.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:2388 -
\??\c:\Program Files\pbztam\jgx.exe"c:\Program Files\pbztam\jgx.exe" "c:\Program Files\pbztam\jgxhn.dll",Scheduler C:\Users\Admin\AppData\Local\Temp\bjcxis.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:2880
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
184KB
MD502968025d0cd2d99813676e5e1c6b5cb
SHA155cf7ba33eb0b4ecd0cea466e3c1f857ff0660c1
SHA256cd59df04371c35400261f0ce2189e561cf06e06d0bc77504bb7060880aaae337
SHA5126fb23000e134d6f72689b50d73bd4f0e6ad501d6dacf50c811fa0ef66d9df712b71747b669cc63808153c8deee9c794592b0c13210a3c1e0148772a644bf9219
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Filesize
43KB
MD551138beea3e2c21ec44d0932c71762a8
SHA18939cf35447b22dd2c6e6f443446acc1bf986d58
SHA2565ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d
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Filesize
613KB
MD5faec7e25512c18ed5645e225837f1797
SHA1f2ce92039bbf70bdb6a7e04d3cc20a998bd9cdb3
SHA256b6844d70efa2e0411ba7c11f9a28ff95bfebfafcafe23267d70e2180c3b5e31c
SHA5129baf942b04f70cb1c075b8fbf2034da440c86bbdad2223288a01b7fd6bacfa9368f2d57e21f91beda2f741cfa9cf75e999c605936a192dc9b8a0a58e11e49ba3