Analysis
- max time kernel
149s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
22/05/2026, 13:09
General
- Target tmpkbyiabas.exe
- Size 89KB
- Sample260522-qd7b7aev3s
- SHA256 e1bba3d4920edc6e4044e4de304363b0b0444881abe2cab8cda5db54a4234c19
Malware Config
Signatures
- Family: Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 10 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmpkbyiabas.exe"C:\Users\Admin\AppData\Local\Temp\tmpkbyiabas.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\winver.exewinver3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4188 -s 3524⤵
- Program crash
-
-
-
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C:\Users\Admin\AppData\Roaming\CC7F803D\bin.exeC:\Users\Admin\AppData\Roaming\CC7F803D\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4188 -ip 41881⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
bin.exe
memory/468-1-0x00000000006C0000-0x00000000006C1000-memory.dmp
memory/468-4-0x00000000021E0000-0x0000000002BE0000-memory.dmp
memory/468-0-0x0000000000400000-0x0000000000418000-memory.dmp
memory/468-10-0x0000000000400000-0x0000000000418000-memory.dmp
memory/468-11-0x00000000021E0000-0x0000000002BE0000-memory.dmp
memory/884-31-0x00007FFB3C110000-0x00007FFB3C305000-memory.dmp
memory/884-23-0x00007FFB3C110000-0x00007FFB3C305000-memory.dmp
memory/884-20-0x00007FFB3C110000-0x00007FFB3C305000-memory.dmp
memory/2416-34-0x00007FFB3C330000-0x00007FFB3C331000-memory.dmp
memory/2416-29-0x0000000000B20000-0x0000000000B26000-memory.dmp
memory/3248-8-0x00007FFB3C340000-0x00007FFB3C341000-memory.dmp
memory/3248-14-0x0000000000F80000-0x0000000000F81000-memory.dmp
memory/3248-17-0x00007FFB3C320000-0x00007FFB3C321000-memory.dmp
memory/3248-16-0x00007FFB3C310000-0x00007FFB3C311000-memory.dmp
memory/3248-36-0x00007FFB3C330000-0x00007FFB3C331000-memory.dmp
memory/3248-6-0x00007FFB3C1AD000-0x00007FFB3C1AE000-memory.dmp
memory/3248-2-0x00000000033D0000-0x00000000033D6000-memory.dmp
memory/3248-3-0x00000000033D0000-0x00000000033D6000-memory.dmp
memory/4188-5-0x0000000077B62000-0x0000000077B63000-memory.dmp
memory/4188-33-0x0000000000F50000-0x0000000000F56000-memory.dmp
memory/4188-13-0x0000000000F50000-0x0000000000F56000-memory.dmp
memory/4188-7-0x00007FFB3C110000-0x00007FFB3C305000-memory.dmp
memory/5336-26-0x00000000001C0000-0x00000000001C6000-memory.dmp
memory/5336-25-0x00007FFB3C110000-0x00007FFB3C305000-memory.dmp
memory/5336-22-0x0000000000400000-0x0000000000418000-memory.dmp