tinba | 40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631

Analysis

max time kernel
106s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2024, 21:42

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General

Target

40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631N.exe
Size

59KB
MD5

1e5cdf8ef9ff028e73bd64d01a112c60
SHA1

07a9abc5bdcf88e10f8d54db6076a77cb862d96a
SHA256

40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631
SHA512

ceacfed9a4db37f26046a607311ee7a9012871239f9fe4b5d2d06d020aaa4a7b687d9e2d47b35ef3ef549de8887d07f36b73a89022abfa7071bb572b0bbf76c5
SSDEEP

768:K+6p+OMlgGMCWhfDzU7f7JDgiFP7xI57+sByZ+XsfXpwtGc9J1:K+mFM2HXKZgiFP7xIksu+XM5O9J1

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
Tinba family
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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9AF2FD35 = "C:\\Users\\Admin\\AppData\\Roaming\\9AF2FD35\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2252	3656	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	40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3656	winver.exe
3656	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
3656	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 3656	4116	40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631N.exe	84
PID 4116 wrote to memory of 3656	4116	40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631N.exe	84
PID 4116 wrote to memory of 3656	4116	40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631N.exe	84
PID 4116 wrote to memory of 3656	4116	40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631N.exe	84
PID 3656 wrote to memory of 3356	3656	winver.exe	55
PID 3656 wrote to memory of 2672	3656	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2672

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3356
- C:\Users\Admin\AppData\Local\Temp\40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631N.exe
  "C:\Users\Admin\AppData\Local\Temp\40a432671310be48078d8ef1708451b3d2a5436b2d5a419c8bdfa4c91c1c2631N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4116
- - 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:3656
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 356
      4⤵
      Program crash
      PID:2252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3656 -ip 3656
1⤵
PID:2936

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/2672-12-0x0000000000090000-0x0000000000096000-memory.dmp

Filesize
24KB

Download
memory/3356-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3356-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3356-5-0x00007FFA5B00D000-0x00007FFA5B00E000-memory.dmp

Filesize
4KB

Download
memory/3656-4-0x00000000776A2000-0x00000000776A3000-memory.dmp

Filesize
4KB

Download
memory/3656-6-0x00007FFA5AF70000-0x00007FFA5B165000-memory.dmp

Filesize
2.0MB

Download
memory/3656-10-0x0000000001080000-0x0000000001086000-memory.dmp

Filesize
24KB

Download
memory/3656-13-0x0000000001080000-0x0000000001086000-memory.dmp

Filesize
24KB

Download
memory/4116-0-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/4116-3-0x0000000002340000-0x0000000002D40000-memory.dmp

Filesize
10.0MB

Download
memory/4116-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4116-8-0x0000000002340000-0x0000000002D40000-memory.dmp

Filesize
10.0MB

Download