tinba | 52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2024, 00:10

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General

Target
52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af.exe
Size 160KB
Sample241124-af667stnfx
SHA256 52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af
MD5 cedeb9a9d9176194bcbdec2148684d63
SHA1 3bebc8bf2675f6dac6f972b76c80e6e2976fcb15
SHA512 2b9b2b4c538242bd1cb91be7e0e0c85db75bbcbc1f117ce92fa20dd69121d403fcefff7518779b4c0e22927eb3a520ed11a47bb65a3ccb2e930fdf54705cd40e
SSDEEP 1536:fEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph0:MY+4MiIkLZJNAQ9J6vq
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
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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3B52FB88 = "C:\\Users\\Admin\\AppData\\Roaming\\3B52FB88\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/640-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4748	872	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	52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
872	winver.exe
872	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3588	Explorer.EXE
Token: SeCreatePagefilePrivilege	3588	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
872	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 872	640	52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af.exe	83
PID 640 wrote to memory of 872	640	52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af.exe	83
PID 640 wrote to memory of 872	640	52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af.exe	83
PID 640 wrote to memory of 872	640	52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af.exe	83
PID 872 wrote to memory of 3588	872	winver.exe	56
PID 872 wrote to memory of 2588	872	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2588

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3588
- C:\Users\Admin\AppData\Local\Temp\52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af.exe
  "C:\Users\Admin\AppData\Local\Temp\52de61824deb74e4cda27f246f88818ad83ffd912c45819d38a8a4de9cb4d5af.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:640
- - 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:872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 872 -s 352
      4⤵
      Program crash
      PID:4748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 872 -ip 872
1⤵
PID:4556

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/640-1-0x0000000002170000-0x0000000002171000-memory.dmp

Download

memory/640-0-0x0000000000400000-0x0000000000428000-memory.dmp

Download

memory/640-4-0x0000000002270000-0x0000000002C70000-memory.dmp

Download

memory/640-8-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/640-9-0x0000000002270000-0x0000000002C70000-memory.dmp

Download

memory/872-11-0x0000000002910000-0x0000000002916000-memory.dmp

Download

memory/872-14-0x0000000002910000-0x0000000002916000-memory.dmp

Download

memory/872-5-0x0000000077D82000-0x0000000077D83000-memory.dmp

Download

memory/872-7-0x00007FFC2B390000-0x00007FFC2B585000-memory.dmp

Download

memory/2588-13-0x0000000000100000-0x0000000000106000-memory.dmp

Download

memory/3588-3-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

Download

memory/3588-6-0x00007FFC2B42D000-0x00007FFC2B42E000-memory.dmp

Download

memory/3588-2-0x0000000002DE0000-0x0000000002DE6000-memory.dmp

Download