Analysis
- max time kernel
144s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
02/02/2024, 17:23
General
- Target b71112887e2b67a93960842b156d3807.exe
- Size 626KB
- Sample240202-vx5d6addgn
- SHA256 fb740e250acd2f9d5d5de59d9292b4f49c866dd0ae4cce517a734df814ac9b56
Malware Config
Extracted
-
systembc
-
69.10.60.115:4018
Signatures
- Detect ZGRat V1 34 IoCs
- SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
- ZGRat
ZGRat is remote access trojan written in C#.
- Downloads MZ/PE file
- Executes dropped EXE 3 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Drops file in System32 directory 1 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Drops file in Windows directory 4 IoCs
- Modifies data under HKEY_USERS 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b71112887e2b67a93960842b156d3807.exe"C:\Users\Admin\AppData\Local\Temp\b71112887e2b67a93960842b156d3807.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\b71112887e2b67a93960842b156d3807.exeC:\Users\Admin\AppData\Local\Temp\b71112887e2b67a93960842b156d3807.exe2⤵
- Adds Run key to start application
- Drops file in Windows directory
-
-
C:\Users\Admin\AppData\Local\Temp\bnqjt.exeC:\Users\Admin\AppData\Local\Temp\bnqjt.exe1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\bnqjt.exeC:\Users\Admin\AppData\Local\Temp\bnqjt.exe2⤵
- Executes dropped EXE
- Drops file in Windows directory
- Modifies data under HKEY_USERS
-
-
C:\Windows\TEMP\pcgko.exeC:\Windows\TEMP\pcgko.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
bnqjt.exe
memory/1600-0-0x0000000000690000-0x0000000000732000-memory.dmp
memory/1600-1-0x0000000075100000-0x00000000758B0000-memory.dmp
memory/1600-2-0x00000000050C0000-0x0000000005156000-memory.dmp
memory/1600-3-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-4-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-6-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-8-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-10-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-12-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-14-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-16-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-18-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-20-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-22-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-24-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-26-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-28-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-30-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-32-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-34-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-36-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-38-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-40-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-42-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-44-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-46-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-48-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-60-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-58-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-56-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-62-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-54-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-52-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-64-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-50-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-66-0x00000000050C0000-0x0000000005150000-memory.dmp
memory/1600-935-0x0000000005040000-0x0000000005050000-memory.dmp
memory/1600-936-0x0000000005150000-0x0000000005151000-memory.dmp
memory/1600-938-0x0000000005230000-0x000000000527C000-memory.dmp
memory/1600-937-0x00000000051B0000-0x00000000051DE000-memory.dmp
memory/1600-939-0x0000000075100000-0x00000000758B0000-memory.dmp
memory/1600-940-0x0000000005040000-0x0000000005050000-memory.dmp
memory/1600-941-0x0000000005BD0000-0x0000000006174000-memory.dmp
memory/1600-948-0x0000000075100000-0x00000000758B0000-memory.dmp
memory/2828-956-0x00000000749D0000-0x0000000075180000-memory.dmp
memory/2828-1890-0x0000000003660000-0x0000000003661000-memory.dmp
memory/2828-1889-0x0000000000F10000-0x0000000000F20000-memory.dmp
memory/2828-1891-0x00000000749D0000-0x0000000075180000-memory.dmp
memory/2828-1892-0x0000000000F10000-0x0000000000F20000-memory.dmp
memory/2828-1897-0x00000000749D0000-0x0000000075180000-memory.dmp
memory/3456-949-0x0000000000400000-0x0000000000406000-memory.dmp
memory/3616-1908-0x00000000750A0000-0x0000000075850000-memory.dmp
memory/3616-2842-0x0000000003F00000-0x0000000003F01000-memory.dmp
memory/3616-2841-0x0000000003F90000-0x0000000003FA0000-memory.dmp