tinba | 88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4f

Analysis

max time kernel
111s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 16:13

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General

Target
88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4fN.exe
Size 98KB
Sample241002-tn6eesvgrk
SHA256 88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4f
MD5 efbb22426777f8f49674e2b6ff7e5f20
SHA1 a158c41dc4412307bdbfd57741399116df4221ea
SHA512 4be8d8e7a72a453c8586b8d064156539f0fd196a88d065d18af7514dd3afc66b1727fa9340eee661572cd48c86d95cf78024b6b2bf9e8451a59bf4372270c806
SSDEEP 768:j+6p+OMlgGMCWhfDzU7f7JDgi9I57+sByZ+XsfXpwtG9ipelU9JF:j+mFM2HXKZgi9Iksu+XM57ipeq9JF
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\09A10CEB = "C:\\Users\\Admin\\AppData\\Roaming\\09A10CEB\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5028	1140	WerFault.exe	83

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	88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1140	winver.exe
1140	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1140	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 1140	224	88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4fN.exe	83
PID 224 wrote to memory of 1140	224	88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4fN.exe	83
PID 224 wrote to memory of 1140	224	88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4fN.exe	83
PID 224 wrote to memory of 1140	224	88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4fN.exe	83
PID 1140 wrote to memory of 3516	1140	winver.exe	56
PID 1140 wrote to memory of 2648	1140	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2648

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3516
- C:\Users\Admin\AppData\Local\Temp\88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4fN.exe
  "C:\Users\Admin\AppData\Local\Temp\88f9f322b5893f504310b1414f12821a45c3e0bfd5cd1f8cc6c7612158908e4fN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:224
- - 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:1140
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1140 -s 352
      4⤵
      Program crash
      PID:5028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1140 -ip 1140
1⤵
PID:2060

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

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Downloads

memory/224-0-0x0000000002150000-0x0000000002151000-memory.dmp

Download

memory/224-3-0x0000000002280000-0x0000000002C80000-memory.dmp

Download

memory/224-8-0x0000000002280000-0x0000000002C80000-memory.dmp

Download

memory/224-7-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/1140-4-0x0000000076EE2000-0x0000000076EE3000-memory.dmp

Download

memory/1140-6-0x00007FFAEAA70000-0x00007FFAEAC65000-memory.dmp

Download

memory/1140-10-0x0000000002C30000-0x0000000002C36000-memory.dmp

Download

memory/1140-13-0x0000000002C30000-0x0000000002C36000-memory.dmp

Download

memory/2648-12-0x0000000000E20000-0x0000000000E26000-memory.dmp

Download

memory/3516-2-0x0000000000A90000-0x0000000000A96000-memory.dmp

Download

memory/3516-1-0x0000000000A90000-0x0000000000A96000-memory.dmp

Download

memory/3516-5-0x00007FFAEAB0D000-0x00007FFAEAB0E000-memory.dmp

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