tinba | 3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9d

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 11:48

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General

Target

3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe
Size

89KB
MD5

6b63f33750e660d007e0c3c28fcd1700
SHA1

239817be025723456a16f96bdfe22d8292bb31a0
SHA256

3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9d
SHA512

18a0c866a4b942bce7faa091e8403a0b819d49b0b5457f203d3269d83a773acabc9c099573fd5e7c68fed6e77a1afb2c5998309a5e82119a02ebd0a319de848e
SSDEEP

1536:E9o65gQK3Zm+Mt9RV5O8oQ9cXFunGm6ManhFLnBqHan6owwosTk8vxA:E9o6fK2XqXQwhnHlqQo8Lvy

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\2BA478D8 = "C:\\Users\\Admin\\AppData\\Roaming\\2BA478D8\\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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe
2676	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2676	winver.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2676	2092	3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe	30
PID 2092 wrote to memory of 2676	2092	3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe	30
PID 2092 wrote to memory of 2676	2092	3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe	30
PID 2092 wrote to memory of 2676	2092	3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe	30
PID 2092 wrote to memory of 2676	2092	3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe	30
PID 2676 wrote to memory of 1156	2676	winver.exe	21
PID 2676 wrote to memory of 1064	2676	winver.exe	18
PID 2676 wrote to memory of 1076	2676	winver.exe	19
PID 2676 wrote to memory of 1156	2676	winver.exe	21
PID 2676 wrote to memory of 1460	2676	winver.exe	23
PID 2676 wrote to memory of 2092	2676	winver.exe	29

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1064

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1076

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1156
- C:\Users\Admin\AppData\Local\Temp\3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe
  "C:\Users\Admin\AppData\Local\Temp\3528e8765a401d827c50a838b4b83af5261086841fd6c31d1ba96e3da3552a9dN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2092
- - 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:2676

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1460

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/1064-17-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/1064-30-0x00000000772D1000-0x00000000772D2000-memory.dmp

Filesize
4KB

Download
memory/1064-29-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/1076-31-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1076-19-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1156-32-0x00000000029D0000-0x00000000029D6000-memory.dmp

Filesize
24KB

Download
memory/1156-12-0x00000000772D1000-0x00000000772D2000-memory.dmp

Filesize
4KB

Download
memory/1156-5-0x00000000029C0000-0x00000000029C6000-memory.dmp

Filesize
24KB

Download
memory/1156-1-0x00000000029C0000-0x00000000029C6000-memory.dmp

Filesize
24KB

Download
memory/1156-22-0x00000000029D0000-0x00000000029D6000-memory.dmp

Filesize
24KB

Download
memory/1156-2-0x00000000029C0000-0x00000000029C6000-memory.dmp

Filesize
24KB

Download
memory/1460-28-0x00000000772D1000-0x00000000772D2000-memory.dmp

Filesize
4KB

Download
memory/1460-27-0x0000000001D00000-0x0000000001D06000-memory.dmp

Filesize
24KB

Download
memory/1460-24-0x0000000001D00000-0x0000000001D06000-memory.dmp

Filesize
24KB

Download
memory/2092-0-0x0000000000280000-0x0000000000282000-memory.dmp

Filesize
8KB

Download
memory/2092-6-0x0000000002410000-0x0000000002E10000-memory.dmp

Filesize
10.0MB

Download
memory/2092-14-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2092-33-0x0000000002410000-0x0000000002E10000-memory.dmp

Filesize
10.0MB

Download
memory/2676-13-0x0000000077280000-0x0000000077429000-memory.dmp

Filesize
1.7MB

Download
memory/2676-7-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2676-8-0x0000000077480000-0x0000000077481000-memory.dmp

Filesize
4KB

Download
memory/2676-9-0x000000007747F000-0x0000000077480000-memory.dmp

Filesize
4KB

Download
memory/2676-10-0x000000007747F000-0x0000000077481000-memory.dmp

Filesize
8KB

Download
memory/2676-11-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2676-3-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2676-34-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download