tinba | 6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 13:55

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General

Target

6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863N.exe
Size

98KB
MD5

affc44fbf29c29947b5245594ee03b40
SHA1

60c0d77a8a2a4752852850c0ffc31102ed7a5f33
SHA256

6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863
SHA512

66c09eb201a06922247a7b2364c2165a18bea869da1802cfa94d6f60663ab3a1962d76f73dd5756dd39f30f087ed194b0339478d57cea1148758d12f3fe6af0d
SSDEEP

768:C+6p+OMlgGMCWhfDzU7f7JDgi9I57+sByZ+XsfXpwtG9ipelU9JF:C+mFM2HXKZgi9Iksu+XM57ipeq9JF

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5E53746D = "C:\\Users\\Admin\\AppData\\Roaming\\5E53746D\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
928	2712	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	6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2712	winver.exe
2712	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2712	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3444	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4268 wrote to memory of 2712	4268	6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863N.exe	85
PID 4268 wrote to memory of 2712	4268	6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863N.exe	85
PID 4268 wrote to memory of 2712	4268	6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863N.exe	85
PID 4268 wrote to memory of 2712	4268	6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863N.exe	85
PID 2712 wrote to memory of 3444	2712	winver.exe	56
PID 2712 wrote to memory of 3008	2712	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3008

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3444
- C:\Users\Admin\AppData\Local\Temp\6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863N.exe
  "C:\Users\Admin\AppData\Local\Temp\6e3d474f83c5281f84b5349b40834437f50e9cc65b63c3de0a5931f2b8f18863N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4268
- - 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:2712
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2712 -s 352
      4⤵
      Program crash
      PID:928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2712 -ip 2712
1⤵
PID:4092

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/2712-5-0x00000000774D2000-0x00000000774D3000-memory.dmp

Filesize
4KB

Download
memory/2712-4-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/2712-7-0x00007FF978A10000-0x00007FF978C05000-memory.dmp

Filesize
2.0MB

Download
memory/2712-14-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/3008-13-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/3444-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/3444-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/3444-16-0x00007FF978C40000-0x00007FF978C41000-memory.dmp

Filesize
4KB

Download
memory/3444-6-0x00007FF978AAD000-0x00007FF978AAE000-memory.dmp

Filesize
4KB

Download
memory/4268-3-0x00000000022B0000-0x0000000002CB0000-memory.dmp

Filesize
10.0MB

Download
memory/4268-9-0x00000000022B0000-0x0000000002CB0000-memory.dmp

Filesize
10.0MB

Download
memory/4268-8-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4268-0-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download