Analysis
- max time kernel
149s - platform
windows11-21h2_x64 - resource
win11-20260513-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 64 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4896 -s 3804⤵
- Program crash
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C:\Users\Admin\AppData\Roaming\FC30BB14\bin.exeC:\Users\Admin\AppData\Roaming\FC30BB14\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4896 -ip 48961⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
bin.exe
memory/1708-8-0x0000000000400000-0x0000000000418000-memory.dmp
memory/1708-1-0x00000000005C0000-0x00000000005C1000-memory.dmp
memory/1708-0-0x0000000000400000-0x0000000000418000-memory.dmp
memory/1708-4-0x0000000002340000-0x0000000002D40000-memory.dmp
memory/1708-9-0x0000000002340000-0x0000000002D40000-memory.dmp
memory/3064-26-0x0000000000EE0000-0x0000000000EE6000-memory.dmp
memory/3160-2-0x0000000003410000-0x0000000003416000-memory.dmp
memory/3160-31-0x00007FFD5CF10000-0x00007FFD5CF11000-memory.dmp
memory/3160-32-0x00007FFD5CF20000-0x00007FFD5CF21000-memory.dmp
memory/3160-6-0x00007FFD5CD83000-0x00007FFD5CD84000-memory.dmp
memory/3160-12-0x0000000003330000-0x0000000003331000-memory.dmp
memory/3160-13-0x00007FFD5CEF0000-0x00007FFD5CEF1000-memory.dmp
memory/3160-15-0x00007FFD5CF00000-0x00007FFD5CF01000-memory.dmp
memory/3160-3-0x0000000003410000-0x0000000003416000-memory.dmp
memory/4164-23-0x00000000001C0000-0x00000000001C6000-memory.dmp
memory/4164-21-0x0000000000400000-0x0000000000418000-memory.dmp
memory/4164-22-0x00007FFD5CCE0000-0x00007FFD5CEE9000-memory.dmp
memory/4552-18-0x00007FFD5CCE0000-0x00007FFD5CEE9000-memory.dmp
memory/4552-28-0x00007FFD5CCE0000-0x00007FFD5CEE9000-memory.dmp
memory/4896-11-0x0000000002850000-0x0000000002856000-memory.dmp
memory/4896-30-0x0000000002850000-0x0000000002856000-memory.dmp
memory/4896-7-0x00007FFD5CCE0000-0x00007FFD5CEE9000-memory.dmp
memory/4896-5-0x00000000772E4000-0x00000000772E5000-memory.dmp