tinba | 8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06-12-2024 10:07

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General

Target

8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe
Size

425KB
MD5

3dde2178a7376015838d6d582f836146
SHA1

20667e2cd0e4b27aff72ae01db18958db2ad9aa0
SHA256

8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667
SHA512

3d6656ef02a265a44b35d9b9946c6866048d84def57f34716059cacee00ae28a133c0f5a1bf3cbcba593c1acf1f0b6ce908e369a8a4407d5efef0506aa6881d4
SSDEEP

6144:bCE6/mUXJ531nIUliViSZbLhaZfvMlLXICg2vj7Oyzu:F6TOUMBQf0ljW2vj7Oyzu

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\46FF5FAD = "C:\\Users\\Admin\\AppData\\Roaming\\46FF5FAD\\bin.exe"	winver.exe

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	8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 59 IoCs

pid	Process
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe
3012	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3012	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1744	8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 3012	1744	8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe	29
PID 1744 wrote to memory of 3012	1744	8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe	29
PID 1744 wrote to memory of 3012	1744	8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe	29
PID 1744 wrote to memory of 3012	1744	8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe	29
PID 1744 wrote to memory of 3012	1744	8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe	29
PID 3012 wrote to memory of 1364	3012	winver.exe	21
PID 3012 wrote to memory of 1176	3012	winver.exe	19
PID 3012 wrote to memory of 1312	3012	winver.exe	20
PID 3012 wrote to memory of 1364	3012	winver.exe	21
PID 3012 wrote to memory of 1480	3012	winver.exe	23
PID 3012 wrote to memory of 1744	3012	winver.exe	27

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1176

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1312

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1364
- C:\Users\Admin\AppData\Local\Temp\8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe
  "C:\Users\Admin\AppData\Local\Temp\8bf8ac7efd2c64781e3d324a514341ac575dc815bdc4990419ac3363dc14e667.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1744
- - 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:3012

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1480

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/1176-17-0x0000000000140000-0x0000000000147000-memory.dmp

Filesize
28KB

Download
memory/1176-27-0x0000000000140000-0x0000000000147000-memory.dmp

Filesize
28KB

Download
memory/1176-28-0x0000000077C31000-0x0000000077C32000-memory.dmp

Filesize
4KB

Download
memory/1312-20-0x00000000001B0000-0x00000000001B7000-memory.dmp

Filesize
28KB

Download
memory/1312-29-0x00000000001B0000-0x00000000001B7000-memory.dmp

Filesize
28KB

Download
memory/1364-7-0x00000000025D0000-0x00000000025D7000-memory.dmp

Filesize
28KB

Download
memory/1364-4-0x00000000025D0000-0x00000000025D7000-memory.dmp

Filesize
28KB

Download
memory/1364-3-0x00000000025D0000-0x00000000025D7000-memory.dmp

Filesize
28KB

Download
memory/1364-30-0x0000000002AE0000-0x0000000002AE7000-memory.dmp

Filesize
28KB

Download
memory/1364-14-0x0000000077C31000-0x0000000077C32000-memory.dmp

Filesize
4KB

Download
memory/1364-23-0x0000000002AE0000-0x0000000002AE7000-memory.dmp

Filesize
28KB

Download
memory/1480-32-0x0000000077C31000-0x0000000077C32000-memory.dmp

Filesize
4KB

Download
memory/1480-31-0x0000000001ED0000-0x0000000001ED7000-memory.dmp

Filesize
28KB

Download
memory/1480-25-0x0000000001ED0000-0x0000000001ED7000-memory.dmp

Filesize
28KB

Download
memory/1744-33-0x00000000020D0000-0x0000000002AD0000-memory.dmp

Filesize
10.0MB

Download
memory/1744-2-0x0000000000230000-0x0000000000232000-memory.dmp

Filesize
8KB

Download
memory/1744-1-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1744-8-0x00000000020D0000-0x0000000002AD0000-memory.dmp

Filesize
10.0MB

Download
memory/1744-0-0x0000000000410000-0x0000000000413000-memory.dmp

Filesize
12KB

Download
memory/3012-12-0x0000000077DDF000-0x0000000077DE1000-memory.dmp

Filesize
8KB

Download
memory/3012-15-0x0000000077BE0000-0x0000000077D89000-memory.dmp

Filesize
1.7MB

Download
memory/3012-5-0x00000000000B0000-0x00000000000B7000-memory.dmp

Filesize
28KB

Download
memory/3012-13-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/3012-11-0x0000000077DDF000-0x0000000077DE0000-memory.dmp

Filesize
4KB

Download
memory/3012-9-0x00000000000B0000-0x00000000000B7000-memory.dmp

Filesize
28KB

Download
memory/3012-10-0x0000000077DE0000-0x0000000077DE1000-memory.dmp

Filesize
4KB

Download
memory/3012-34-0x00000000000B0000-0x00000000000B7000-memory.dmp

Filesize
28KB

Download