tinba | 23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa

Analysis

max time kernel
108s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 01:05

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General

Target

23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa.exe
Size

59KB
MD5

4340dc42aaaa198d111bfb54574d245a
SHA1

2b41e721f97ce52f8e49a9a868748dca0d2d6a9f
SHA256

23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa
SHA512

cd3c579fcd2f1057d4b2cb1eb0f924cf42ec3e2a5331ad2c72a070e522c5c713cc15b1c0116305e6e6fa33c4b75648067348354914998fc2f787c6bcc2de907f
SSDEEP

768:I+6p+OMlgGMCWhfDzU7f7JDgiFP7xI57+sByZ+XsfXpwtGc9JH:I+mFM2HXKZgiFP7xIksu+XM5O9JH

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9DB9C38B = "C:\\Users\\Admin\\AppData\\Roaming\\9DB9C38B\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1628	4736	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	23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4736	winver.exe
4736	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4736	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 4736	4844	23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa.exe	84
PID 4844 wrote to memory of 4736	4844	23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa.exe	84
PID 4844 wrote to memory of 4736	4844	23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa.exe	84
PID 4844 wrote to memory of 4736	4844	23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa.exe	84
PID 4736 wrote to memory of 3420	4736	winver.exe	56
PID 4736 wrote to memory of 2836	4736	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2836

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3420
- C:\Users\Admin\AppData\Local\Temp\23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa.exe
  "C:\Users\Admin\AppData\Local\Temp\23e3a9739b96748a66a6262b87b8cccabaacc34af7c35203f7aa2d2d62fba0aa.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4844
- - 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:4736
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 352
      4⤵
      Program crash
      PID:1628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4736 -ip 4736
1⤵
PID:2592

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/2836-12-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/3420-2-0x0000000002690000-0x0000000002696000-memory.dmp

Filesize
24KB

Download
memory/3420-1-0x0000000002690000-0x0000000002696000-memory.dmp

Filesize
24KB

Download
memory/3420-5-0x00007FFBCB90D000-0x00007FFBCB90E000-memory.dmp

Filesize
4KB

Download
memory/4736-4-0x0000000077E72000-0x0000000077E73000-memory.dmp

Filesize
4KB

Download
memory/4736-6-0x00007FFBCB870000-0x00007FFBCBA65000-memory.dmp

Filesize
2.0MB

Download
memory/4736-10-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4736-13-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4844-0-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/4844-3-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/4844-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4844-8-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download