tinba | 25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-12-2024 20:28

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General

Target

25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe
Size

610KB
MD5

9f82c75adfe64310c43bb80640e92b7b
SHA1

f7ede7030daa73ff5c43bf4b98507c838a9cfcc0
SHA256

25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac
SHA512

928cc88db7fb7ab1b8ebd3d4696492d24781d091675193a6fdf1a707153741dd4bae4469f955af67c6754b32db2aba3ff154d4b1435ecb0ef1d3996b69c94aae
SSDEEP

12288:fATuTAnKGwUAW3ycQqgYo3CyWoKEY3ZQi7gfqOuuh+E:lT+KjUdQqboyyWoK1NGqzuhJ

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\09E58D15 = "C:\\Users\\Admin\\AppData\\Roaming\\09E58D15\\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	25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe
2760	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2760	winver.exe
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2760	1736	25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe	31
PID 1736 wrote to memory of 2760	1736	25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe	31
PID 1736 wrote to memory of 2760	1736	25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe	31
PID 1736 wrote to memory of 2760	1736	25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe	31
PID 1736 wrote to memory of 2760	1736	25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe	31
PID 2760 wrote to memory of 1188	2760	winver.exe	21
PID 2760 wrote to memory of 1100	2760	winver.exe	19
PID 2760 wrote to memory of 1160	2760	winver.exe	20
PID 2760 wrote to memory of 1188	2760	winver.exe	21
PID 2760 wrote to memory of 1440	2760	winver.exe	23
PID 2760 wrote to memory of 1736	2760	winver.exe	29

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1100

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1160

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1188
- C:\Users\Admin\AppData\Local\Temp\25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe
  "C:\Users\Admin\AppData\Local\Temp\25dd5cf7f5215db3fa348cf082023d9d4a6999ffd8023ec534285cc1d55a22ac.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1736
- - 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:2760

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1440

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/1100-26-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/1100-9-0x0000000001ED0000-0x0000000001ED6000-memory.dmp

Filesize
24KB

Download
memory/1160-12-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1160-28-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1188-15-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

Filesize
24KB

Download
memory/1188-6-0x0000000002A80000-0x0000000002A86000-memory.dmp

Filesize
24KB

Download
memory/1188-1-0x0000000002A80000-0x0000000002A86000-memory.dmp

Filesize
24KB

Download
memory/1188-3-0x0000000002A80000-0x0000000002A86000-memory.dmp

Filesize
24KB

Download
memory/1188-27-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

Filesize
24KB

Download
memory/1440-18-0x0000000001D90000-0x0000000001D96000-memory.dmp

Filesize
24KB

Download
memory/1440-29-0x0000000001D90000-0x0000000001D96000-memory.dmp

Filesize
24KB

Download
memory/1736-25-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2760-23-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/2760-4-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download
memory/2760-31-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download