tinba | 7c814ce9d9aa397b75241dbd68e6fc9c5ab694083b7fa065775ff8e25c08e6c4

Analysis

max time kernel
118s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2024, 01:53

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General

Target
ff8fcd24c51448c01bb33533a7bcb1a0N.exe
Size 45KB
Sample240915-cbc4nszcml
SHA256 7c814ce9d9aa397b75241dbd68e6fc9c5ab694083b7fa065775ff8e25c08e6c4
MD5 ff8fcd24c51448c01bb33533a7bcb1a0
SHA1 7ef2aa19a9a5a3aa27fb367dcd97e758e533ecc1
SHA512 56f46024bf47c9a8596f5b5d909cbc0a2206f1f24603045094b1d1c0cbe273af252f9ce464771c72ee494770ca246e821c4e3346d88f6913369558846cf181fe
SSDEEP 768:PhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:ZsWE9N5dFu53dsniQaB/xZ14n7zIF+qr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tinba banker discovery persistence trojan upx

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1684-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4AA2BD90 = "C:\\Users\\Admin\\AppData\\Roaming\\4AA2BD90\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1964	4192	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ff8fcd24c51448c01bb33533a7bcb1a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4192	winver.exe
4192	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3356	Explorer.EXE
Token: SeCreatePagefilePrivilege	3356	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4192	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3356	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 4192	1684	ff8fcd24c51448c01bb33533a7bcb1a0N.exe	84
PID 1684 wrote to memory of 4192	1684	ff8fcd24c51448c01bb33533a7bcb1a0N.exe	84
PID 1684 wrote to memory of 4192	1684	ff8fcd24c51448c01bb33533a7bcb1a0N.exe	84
PID 1684 wrote to memory of 4192	1684	ff8fcd24c51448c01bb33533a7bcb1a0N.exe	84
PID 4192 wrote to memory of 3356	4192	winver.exe	56
PID 4192 wrote to memory of 2500	4192	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2500

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3356
- C:\Users\Admin\AppData\Local\Temp\ff8fcd24c51448c01bb33533a7bcb1a0N.exe
  "C:\Users\Admin\AppData\Local\Temp\ff8fcd24c51448c01bb33533a7bcb1a0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1684
- - C:\Windows\SysWOW64\winver.exe
    winver
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4192
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 352
      4⤵
      Program crash
      PID:1964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4192 -ip 4192
1⤵
PID:3344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1684-9-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/1684-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Download

memory/1684-0-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/1684-4-0x0000000002280000-0x0000000002C80000-memory.dmp

Download

memory/1684-10-0x0000000002280000-0x0000000002C80000-memory.dmp

Download

memory/2500-15-0x0000000000CA0000-0x0000000000CA6000-memory.dmp

Download

memory/3356-2-0x0000000000A10000-0x0000000000A16000-memory.dmp

Download

memory/3356-6-0x00007FFCF2D0D000-0x00007FFCF2D0E000-memory.dmp

Download

memory/3356-11-0x00007FFCF2EA0000-0x00007FFCF2EA1000-memory.dmp

Download

memory/3356-3-0x0000000000A10000-0x0000000000A16000-memory.dmp

Download

memory/4192-7-0x00007FFCF2C70000-0x00007FFCF2E65000-memory.dmp

Download

memory/4192-5-0x0000000077862000-0x0000000077863000-memory.dmp

Download

memory/4192-13-0x0000000000A60000-0x0000000000A66000-memory.dmp

Download

memory/4192-16-0x0000000000A60000-0x0000000000A66000-memory.dmp

Download