tinba | 8525d41164c34fec50e9e7075cfdbfafa4e8413a72a430a2517499e0772fd257

Analysis

max time kernel
140s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31/08/2024, 14:53

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General

Target

ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa.exe
Size

96KB
MD5

4d943e11191eac4f61834e3c9f9a0168
SHA1

2fedc1de71f27d21f0924683191cf826be90e594
SHA256

ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa
SHA512

a648ac664ef4ef373dcd1db193acd79bacaef2ec38c0d4869d8220e5cfdf71003130da61b8c501a514cbe95a3db4cd7c0218cefeaab1e8a9e3e66bc3664b4e2b
SSDEEP

1536:ciLOvRmmQegJW3aOgBbmAQ256/ZrwWnwqjhurmKFct:ciyvRmQKTLs/ZrwWJjAqGct

Score

10^/10

tinba banker discovery persistence trojan

Malware Config

Signatures

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

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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F173CEA1 = "C:\\Users\\Admin\\AppData\\Roaming\\F173CEA1\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2776	3920	WerFault.exe	85

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	ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3920	winver.exe
3920	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3920	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3480	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 3920	3204	ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa.exe	85
PID 3204 wrote to memory of 3920	3204	ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa.exe	85
PID 3204 wrote to memory of 3920	3204	ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa.exe	85
PID 3204 wrote to memory of 3920	3204	ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa.exe	85
PID 3920 wrote to memory of 3480	3920	winver.exe	56
PID 3920 wrote to memory of 2576	3920	winver.exe	43

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2576

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3480
- C:\Users\Admin\AppData\Local\Temp\ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa.exe
  "C:\Users\Admin\AppData\Local\Temp\ab2a9c294555f8be58430eef220ce3812dc01ca9b3478806464e6f69e491c7aa.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3204
- - 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:3920
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3920 -s 352
      4⤵
      Program crash
      PID:2776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3920 -ip 3920
1⤵
PID:1208

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

Replay Monitor

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Downloads

memory/2576-16-0x00007FF806510000-0x00007FF806511000-memory.dmp

Filesize
4KB

Download
memory/2576-13-0x0000000000DB0000-0x0000000000DB6000-memory.dmp

Filesize
24KB

Download
memory/3204-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3204-3-0x00000000023E0000-0x0000000002DE0000-memory.dmp

Filesize
10.0MB

Download
memory/3204-0-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/3204-8-0x00000000023E0000-0x0000000002DE0000-memory.dmp

Filesize
10.0MB

Download
memory/3480-9-0x00007FF806520000-0x00007FF806521000-memory.dmp

Filesize
4KB

Download
memory/3480-5-0x00007FF80638D000-0x00007FF80638E000-memory.dmp

Filesize
4KB

Download
memory/3480-1-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/3480-2-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/3920-6-0x00007FF8062F0000-0x00007FF8064E5000-memory.dmp

Filesize
2.0MB

Download
memory/3920-4-0x0000000076EF2000-0x0000000076EF3000-memory.dmp

Filesize
4KB

Download
memory/3920-11-0x0000000000A20000-0x0000000000A26000-memory.dmp

Filesize
24KB

Download
memory/3920-14-0x0000000000A20000-0x0000000000A26000-memory.dmp

Filesize
24KB

Download