tinba | 675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0

Analysis

max time kernel
106s
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
26/09/2024, 18:53

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General

Target

675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0N.exe
Size

45KB
MD5

424f898890282ac4c173e289972daf40
SHA1

fb7cc9a929e909e40eb35cb622ca9a4d1b117b6f
SHA256

675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0
SHA512

476b75aa9256a573956485168454cb85fb593a571bc0061981be0b33b22416d3b14edf66276290c3f8fb53a43226b62b7248ca112e5fa3d4a2f54e82852957e8
SSDEEP

768:ZhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:DsWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EC0DFE40 = "C:\\Users\\Admin\\AppData\\Roaming\\EC0DFE40\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5012-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4792	3812	WerFault.exe	83

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	675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3812	winver.exe
3812	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3812	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 3812	5012	675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0N.exe	83
PID 5012 wrote to memory of 3812	5012	675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0N.exe	83
PID 5012 wrote to memory of 3812	5012	675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0N.exe	83
PID 5012 wrote to memory of 3812	5012	675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0N.exe	83
PID 3812 wrote to memory of 3516	3812	winver.exe	56
PID 3812 wrote to memory of 2720	3812	winver.exe	48

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2720

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3516
- C:\Users\Admin\AppData\Local\Temp\675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0N.exe
  "C:\Users\Admin\AppData\Local\Temp\675a8ad9183a013097318e6b0e43a5e687e65a70c47abe36c7c30d55d5a71eb0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5012
- - 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:3812
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3812 -s 352
      4⤵
      Program crash
      PID:4792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3812 -ip 3812
1⤵
PID:932

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/2720-13-0x00000000000A0000-0x00000000000A6000-memory.dmp

Filesize
24KB

Download
memory/3516-6-0x00007FFF1BD2D000-0x00007FFF1BD2E000-memory.dmp

Filesize
4KB

Download
memory/3516-3-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3516-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3812-5-0x00000000777E2000-0x00000000777E3000-memory.dmp

Filesize
4KB

Download
memory/3812-7-0x00007FFF1BC90000-0x00007FFF1BE85000-memory.dmp

Filesize
2.0MB

Download
memory/3812-11-0x0000000000DC0000-0x0000000000DC6000-memory.dmp

Filesize
24KB

Download
memory/3812-14-0x0000000000DC0000-0x0000000000DC6000-memory.dmp

Filesize
24KB

Download
memory/5012-4-0x00000000020B0000-0x0000000002AB0000-memory.dmp

Filesize
10.0MB

Download
memory/5012-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/5012-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/5012-9-0x00000000020B0000-0x0000000002AB0000-memory.dmp

Filesize
10.0MB

Download
memory/5012-1-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download