tinba | 2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/09/2024, 19:58

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General

Target

2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe
Size

237KB
MD5

0b38016766227d15c35dee2e88df8e66
SHA1

581c3f7d817b405a9ff4342db151a4329c925539
SHA256

2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a
SHA512

6a4f5686deedf75067eb8570e37227d4664e15826c7ca0784e2ce4c2b8ac119df945d9afdbdaf8f82200991c22534a98c36b504fd932586298afcd14c08a09e3
SSDEEP

6144:EA2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYQ:EATuTAnKGwUAWVycQqgj

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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\2637A365 = "C:\\Users\\Admin\\AppData\\Roaming\\2637A365\\bin.exe"	winver.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe
2916	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2916	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2916	3056	2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe	29
PID 3056 wrote to memory of 2916	3056	2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe	29
PID 3056 wrote to memory of 2916	3056	2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe	29
PID 3056 wrote to memory of 2916	3056	2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe	29
PID 3056 wrote to memory of 2916	3056	2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe	29
PID 2916 wrote to memory of 1372	2916	winver.exe	20
PID 2916 wrote to memory of 1224	2916	winver.exe	18
PID 2916 wrote to memory of 1332	2916	winver.exe	19
PID 2916 wrote to memory of 1372	2916	winver.exe	20
PID 2916 wrote to memory of 1108	2916	winver.exe	22

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1224

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1332

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1372
- C:\Users\Admin\AppData\Local\Temp\2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe
  "C:\Users\Admin\AppData\Local\Temp\2a89252403e014c7cbb3cf330c52e07c5f91ac3d2c66a25df10a77a8f47a363a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3056
- - 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:2916

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1108

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 Information Discovery

T1082

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/1108-20-0x0000000001C70000-0x0000000001C76000-memory.dmp

Filesize
24KB

Download
memory/1108-27-0x0000000001C70000-0x0000000001C76000-memory.dmp

Filesize
24KB

Download
memory/1224-24-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1224-11-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1332-25-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1332-14-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1372-6-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1372-17-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/1372-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1372-3-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1372-26-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/2916-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2916-4-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/2916-29-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3056-8-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download