tinba | 7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783

Analysis

max time kernel
111s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-01-2025 04:45

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General

Target

7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783N.exe
Size

88KB
MD5

41d302db1c11fb440e8908f67d42cc90
SHA1

a443954efcbff1686fa2a1593b000231c8fd1e6a
SHA256

7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783
SHA512

a14735093c7763200834650d9e6d5e3a73419307648faf2e2c73debfb6d570389a8f505d3e4ccdbcbab7b609d0032d5cf05235e9f4bd41964e3e037e597e7963
SSDEEP

1536:ez44CpRkr9DXhHf3aOd/56RrkQqjh+rmKVsN:ezvokZR/KM/ysjwqWsN

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\07FE6F5E = "C:\\Users\\Admin\\AppData\\Roaming\\07FE6F5E\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2476	4276	WerFault.exe	84

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	7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4276	winver.exe
4276	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4276	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 4276	2624	7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783N.exe	84
PID 2624 wrote to memory of 4276	2624	7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783N.exe	84
PID 2624 wrote to memory of 4276	2624	7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783N.exe	84
PID 2624 wrote to memory of 4276	2624	7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783N.exe	84
PID 4276 wrote to memory of 3444	4276	winver.exe	56
PID 4276 wrote to memory of 2608	4276	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2608

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783N.exe
  "C:\Users\Admin\AppData\Local\Temp\7c5851b381b86deff879bd0fa71b8f2c139b8b342c26a3c743cd6b451e69c783N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2624
- - 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:4276
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4276 -s 352
      4⤵
      Program crash
      PID:2476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4276 -ip 4276
1⤵
PID:312

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/2608-12-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2624-0-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/2624-3-0x0000000002350000-0x0000000002D50000-memory.dmp

Filesize
10.0MB

Download
memory/2624-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2624-8-0x0000000002350000-0x0000000002D50000-memory.dmp

Filesize
10.0MB

Download
memory/3444-1-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/3444-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/3444-5-0x00007FFF7F40D000-0x00007FFF7F40E000-memory.dmp

Filesize
4KB

Download
memory/4276-4-0x00000000777C2000-0x00000000777C3000-memory.dmp

Filesize
4KB

Download
memory/4276-6-0x00007FFF7F370000-0x00007FFF7F565000-memory.dmp

Filesize
2.0MB

Download
memory/4276-10-0x0000000000F00000-0x0000000000F06000-memory.dmp

Filesize
24KB

Download
memory/4276-13-0x0000000000F00000-0x0000000000F06000-memory.dmp

Filesize
24KB

Download