tinba | 4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2024 11:51

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General

Target

4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe
Size

88KB
MD5

ed9115f157a22ca83d4189362d453448
SHA1

63f71f7b107fa880e613e425542a9dcc2911c9d7
SHA256

4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3
SHA512

bb6460d017b8daba9aa769838885f3b7df69d4aa5edc64eaf988bbc99588de4896de67e98f5310ac8b2a713fa35cb76f142aed84b95e016ef11d5b592d0ded78
SSDEEP

1536:M5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsNI:M5fvp12UFKcD/6jwqWsNI

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\57BCD5EA = "C:\\Users\\Admin\\AppData\\Roaming\\57BCD5EA\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2208	4456	WerFault.exe	86

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	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4456	winver.exe
4456	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4456	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 4456	2820	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	86
PID 2820 wrote to memory of 4456	2820	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	86
PID 2820 wrote to memory of 4456	2820	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	86
PID 2820 wrote to memory of 4456	2820	4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe	86
PID 4456 wrote to memory of 3416	4456	winver.exe	56
PID 4456 wrote to memory of 2808	4456	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2808

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3416
- C:\Users\Admin\AppData\Local\Temp\4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe
  "C:\Users\Admin\AppData\Local\Temp\4d6a2b3232b090f762d88da2736c4dfd094c1f535206a320a7d7338eb891d9e3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2820
- - 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:4456
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 352
      4⤵
      Program crash
      PID:2208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4456 -ip 4456
1⤵
PID:1092

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/2808-12-0x0000000000C40000-0x0000000000C46000-memory.dmp

Filesize
24KB

Download
memory/2820-0-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/2820-3-0x0000000002130000-0x0000000002B30000-memory.dmp

Filesize
10.0MB

Download
memory/2820-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2820-8-0x0000000002130000-0x0000000002B30000-memory.dmp

Filesize
10.0MB

Download
memory/3416-2-0x00000000010B0000-0x00000000010B6000-memory.dmp

Filesize
24KB

Download
memory/3416-1-0x00000000010B0000-0x00000000010B6000-memory.dmp

Filesize
24KB

Download
memory/3416-5-0x00007FFC2D92D000-0x00007FFC2D92E000-memory.dmp

Filesize
4KB

Download
memory/4456-4-0x00000000778C2000-0x00000000778C3000-memory.dmp

Filesize
4KB

Download
memory/4456-6-0x00007FFC2D890000-0x00007FFC2DA85000-memory.dmp

Filesize
2.0MB

Download
memory/4456-10-0x0000000002720000-0x0000000002726000-memory.dmp

Filesize
24KB

Download
memory/4456-13-0x0000000002720000-0x0000000002726000-memory.dmp

Filesize
24KB

Download