tinba | 6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95

Analysis

max time kernel
103s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2024, 04:19

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General

Target
6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95N.exe
Size 160KB
Sample240918-exjjpasgrp
SHA256 6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95
MD5 dd6b4f1747fd60bc6bd42517410cfde0
SHA1 ca0850c763963f97a8ae8c867e7c0a0c1e320bf7
SHA512 de406a9761051624bb159f6b99bc86be54de3e556e8e9df793fed4c96df2d8383448805f85912e6439e06c1bfd9ab9645dd14406f7ebe837cabf43444d00dae6
SSDEEP 1536:WEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:9Y+4MiIkLZJNAQ9J6v
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tinba banker discovery persistence trojan upx

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1756-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\41F46F58 = "C:\\Users\\Admin\\AppData\\Roaming\\41F46F58\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5052	3812	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	6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3812	winver.exe
3812	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
3812	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 3812	1756	6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95N.exe	83
PID 1756 wrote to memory of 3812	1756	6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95N.exe	83
PID 1756 wrote to memory of 3812	1756	6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95N.exe	83
PID 1756 wrote to memory of 3812	1756	6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95N.exe	83
PID 3812 wrote to memory of 3516	3812	winver.exe	56
PID 3812 wrote to memory of 2720	3812	winver.exe	48

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2720

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3516
- C:\Users\Admin\AppData\Local\Temp\6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95N.exe
  "C:\Users\Admin\AppData\Local\Temp\6c7ca572606961f212fdc41ce73617d9e3c2cff300b40f10ccf37f9df6f26c95N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1756
- - 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:3812
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3812 -s 352
      4⤵
      Program crash
      PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3812 -ip 3812
1⤵
PID:116

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/1756-10-0x0000000000400000-0x0000000000428000-memory.dmp

Download

memory/1756-1-0x0000000000540000-0x0000000000541000-memory.dmp

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memory/1756-0-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/1756-4-0x00000000021A0000-0x0000000002BA0000-memory.dmp

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memory/1756-11-0x00000000021A0000-0x0000000002BA0000-memory.dmp

Download

memory/2720-15-0x00000000000A0000-0x00000000000A6000-memory.dmp

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memory/3516-2-0x0000000000360000-0x0000000000366000-memory.dmp

Download

memory/3516-7-0x00007FFF1BD2D000-0x00007FFF1BD2E000-memory.dmp

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memory/3516-3-0x0000000000360000-0x0000000000366000-memory.dmp

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memory/3812-5-0x0000000000E80000-0x0000000000E86000-memory.dmp

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memory/3812-8-0x00007FFF1BC90000-0x00007FFF1BE85000-memory.dmp

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memory/3812-6-0x00000000777E2000-0x00000000777E3000-memory.dmp

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memory/3812-16-0x0000000000E80000-0x0000000000E86000-memory.dmp

Download