tinba | 5158633cdcd58e7df4c5c33b714dcb4b6de86821f1d3af88e4006d3758cee633

General

Target

640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304.exe
Size

49KB
MD5

95ba507c62f9bfbe0bc258702450e634
SHA1

1a3af882c7600a021a7a01e5739e630ad45dc3b8
SHA256

640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304
SHA512

f2d33ced2ca42e7d0d7922f6778b3ad8aa362418d86e6f45285d2069fce6ca8f0b52b3155f4165ebdb84d4b74764a768acd497eeb1a70dd1fa47ef5044d6c565
SSDEEP

768:LCCCFlkbwAYbFshpyiB9L9Mx2BWseUCHGAwk5R9Jw:vbw/6plBTFBYNNR9Jw

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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4BEB8452 = "C:\\Users\\Admin\\AppData\\Roaming\\4BEB8452\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3620	3592	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	640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3592	winver.exe
3592	winver.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3376	Explorer.EXE
Token: SeCreatePagefilePrivilege	3376	Explorer.EXE
Token: SeShutdownPrivilege	3376	Explorer.EXE
Token: SeCreatePagefilePrivilege	3376	Explorer.EXE
Token: SeShutdownPrivilege	3376	Explorer.EXE
Token: SeCreatePagefilePrivilege	3376	Explorer.EXE
Token: SeShutdownPrivilege	3376	Explorer.EXE
Token: SeCreatePagefilePrivilege	3376	Explorer.EXE
Token: SeShutdownPrivilege	3376	Explorer.EXE
Token: SeCreatePagefilePrivilege	3376	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3592	winver.exe
3376	Explorer.EXE
3376	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3376	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 3592	2036	640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304.exe	85
PID 2036 wrote to memory of 3592	2036	640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304.exe	85
PID 2036 wrote to memory of 3592	2036	640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304.exe	85
PID 2036 wrote to memory of 3592	2036	640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304.exe	85
PID 3592 wrote to memory of 3376	3592	winver.exe	55
PID 3592 wrote to memory of 2624	3592	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2624

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3376
- C:\Users\Admin\AppData\Local\Temp\640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304.exe
  "C:\Users\Admin\AppData\Local\Temp\640db2b24b1ff39f4c6c8eb1d177c7d9882d55839744901e55891a496bab7304.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2036
- - 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:3592
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 352
      4⤵
      Program crash
      PID:3620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3592 -ip 3592
1⤵
PID:1500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2036-9-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/2036-8-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2036-0-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2036-3-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/2624-14-0x0000000000040000-0x0000000000046000-memory.dmp

Filesize
24KB

Download
memory/3376-5-0x00007FF898C6D000-0x00007FF898C6E000-memory.dmp

Filesize
4KB

Download
memory/3376-2-0x0000000000F50000-0x0000000000F56000-memory.dmp

Filesize
24KB

Download
memory/3376-1-0x0000000000F50000-0x0000000000F56000-memory.dmp

Filesize
24KB

Download
memory/3376-10-0x00007FF898DE0000-0x00007FF898DE1000-memory.dmp

Filesize
4KB

Download
memory/3376-7-0x00007FF898E00000-0x00007FF898E01000-memory.dmp

Filesize
4KB

Download
memory/3592-4-0x0000000077952000-0x0000000077953000-memory.dmp

Filesize
4KB

Download
memory/3592-6-0x00007FF898BD0000-0x00007FF898DC5000-memory.dmp

Filesize
2.0MB

Download
memory/3592-12-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download
memory/3592-15-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads