Analysis
- max time kernel
142s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system - submitted
09/10/2023, 06:23
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe
Resource
win7-20230831-en
windows7-x64
17 signatures
150 seconds
General
- Target 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe
- Size 1.3MB
- Sample231009-g5vyssda87
- SHA256 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3
- MD5 77835bcfdbdaacb36446573669b8dcfc
- SHA1 888f8726358044bcce07edc86dc3020b9b14a73b
- SHA512 ff6bbb8e678f81fb6036c4e06c72fff24fc755e1ded57f4b044d15c147ad05a8b64eb86cb9520fad11e5c2a4cb31e6a78432c3a09e1e92f3d7b1aaeceef0b8e7
- SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNW:QHPkVOBTK
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
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resource yara_rule behavioral2/memory/2960-0-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit - Gh0st RAT payload 1 IoCs
resource yara_rule behavioral2/memory/2960-0-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat - Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys Jbrja.exe - Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" Jbrja.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\Control Panel\International\Geo\Nation 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe - Executes dropped EXE 1 IoCs
pid Process 2720 Jbrja.exe - Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\G: Jbrja.exe File opened (read-only) \??\J: Jbrja.exe File opened (read-only) \??\N: Jbrja.exe File opened (read-only) \??\U: Jbrja.exe File opened (read-only) \??\V: Jbrja.exe File opened (read-only) \??\B: Jbrja.exe File opened (read-only) \??\E: Jbrja.exe File opened (read-only) \??\Q: Jbrja.exe File opened (read-only) \??\Z: Jbrja.exe File opened (read-only) \??\M: Jbrja.exe File opened (read-only) \??\R: Jbrja.exe File opened (read-only) \??\S: Jbrja.exe File opened (read-only) \??\P: Jbrja.exe File opened (read-only) \??\T: Jbrja.exe File opened (read-only) \??\W: Jbrja.exe File opened (read-only) \??\H: Jbrja.exe File opened (read-only) \??\I: Jbrja.exe File opened (read-only) \??\K: Jbrja.exe File opened (read-only) \??\L: Jbrja.exe File opened (read-only) \??\O: Jbrja.exe File opened (read-only) \??\X: Jbrja.exe File opened (read-only) \??\Y: Jbrja.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 Jbrja.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz Jbrja.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 3640 PING.EXE - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe 2720 Jbrja.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 2720 Jbrja.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2960 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe Token: SeLoadDriverPrivilege 2720 Jbrja.exe Token: 33 2720 Jbrja.exe Token: SeIncBasePriorityPrivilege 2720 Jbrja.exe Token: 33 2720 Jbrja.exe Token: SeIncBasePriorityPrivilege 2720 Jbrja.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2960 wrote to memory of 2720 2960 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe 85 PID 2960 wrote to memory of 2720 2960 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe 85 PID 2960 wrote to memory of 2720 2960 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe 85 PID 2960 wrote to memory of 2708 2960 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe 86 PID 2960 wrote to memory of 2708 2960 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe 86 PID 2960 wrote to memory of 2708 2960 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe 86 PID 2708 wrote to memory of 3640 2708 cmd.exe 89 PID 2708 wrote to memory of 3640 2708 cmd.exe 89 PID 2708 wrote to memory of 3640 2708 cmd.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe"C:\Users\Admin\AppData\Local\Temp\1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Jbrja.exe"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Jbrja.exe"2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:2720
-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\1D86D9~1.EXE > nul2⤵
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.13⤵
- Runs ping.exe
PID:3640
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Jbrja.exe
- Size 1.3MB
- SHA256 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3
- MD5 77835bcfdbdaacb36446573669b8dcfc
- SHA1 888f8726358044bcce07edc86dc3020b9b14a73b
- SHA512 ff6bbb8e678f81fb6036c4e06c72fff24fc755e1ded57f4b044d15c147ad05a8b64eb86cb9520fad11e5c2a4cb31e6a78432c3a09e1e92f3d7b1aaeceef0b8e7
- SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNW:QHPkVOBTK
- MD5 SHA1 SHA512 SSDEEP
- Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Jbrja.exe
- Size 1.3MB
- SHA256 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3
- MD5 77835bcfdbdaacb36446573669b8dcfc
- SHA1 888f8726358044bcce07edc86dc3020b9b14a73b
- SHA512 ff6bbb8e678f81fb6036c4e06c72fff24fc755e1ded57f4b044d15c147ad05a8b64eb86cb9520fad11e5c2a4cb31e6a78432c3a09e1e92f3d7b1aaeceef0b8e7
- SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNW:QHPkVOBTK
- MD5 SHA1 SHA512 SSDEEP
- Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Jbrja.exe
- Size 1.3MB
- SHA256 1d86d95e6dfa6b7ac29531a8abc6b087c95dbd4e8821902406965fd43dea59c3
- MD5 77835bcfdbdaacb36446573669b8dcfc
- SHA1 888f8726358044bcce07edc86dc3020b9b14a73b
- SHA512 ff6bbb8e678f81fb6036c4e06c72fff24fc755e1ded57f4b044d15c147ad05a8b64eb86cb9520fad11e5c2a4cb31e6a78432c3a09e1e92f3d7b1aaeceef0b8e7
- SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNW:QHPkVOBTK
- MD5 SHA1 SHA512 SSDEEP