tinba | 6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8

Analysis

max time kernel
110s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/10/2024, 09:07

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General

Target
6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8N.exe
Size 45KB
Sample241005-k3ka3a1dkf
SHA256 6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8
MD5 0ea3082a0d8ad538c60dc73dc25868e0
SHA1 d898867d910d29cac83c47e2b2e48c57e1104e32
SHA512 eef3e7c2b0fdc7973c12eb3c5ec9b363710f472ad933a39331de7b14e848776aab493cc36fd1316d53726eabc1eb0eb1d468721e85c8f24fb4287bc57f42d2ea
SSDEEP 768:3hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:RsWE9N5dFu53dsniQaB/xZ14n7zIF+qr
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

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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\79F49723 = "C:\\Users\\Admin\\AppData\\Roaming\\79F49723\\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/4644-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4772	3872	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	6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3872	winver.exe
3872	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3548	Explorer.EXE
Token: SeCreatePagefilePrivilege	3548	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3872	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 3872	4644	6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8N.exe	83
PID 4644 wrote to memory of 3872	4644	6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8N.exe	83
PID 4644 wrote to memory of 3872	4644	6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8N.exe	83
PID 4644 wrote to memory of 3872	4644	6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8N.exe	83
PID 3872 wrote to memory of 3548	3872	winver.exe	56
PID 3872 wrote to memory of 2604	3872	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2604

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3548
- C:\Users\Admin\AppData\Local\Temp\6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8N.exe
  "C:\Users\Admin\AppData\Local\Temp\6d444ca7356a9f546832a94608f3746b4c491586414f4751b156b5c1fd0fa0c8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4644
- - 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:3872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 352
      4⤵
      Program crash
      PID:4772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3872 -ip 3872
1⤵
PID:2576

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/2604-13-0x00000000008D0000-0x00000000008D6000-memory.dmp

Download

memory/3548-3-0x0000000000750000-0x0000000000756000-memory.dmp

Download

memory/3548-2-0x0000000000750000-0x0000000000756000-memory.dmp

Download

memory/3548-6-0x00007FFCB80ED000-0x00007FFCB80EE000-memory.dmp

Download

memory/3872-11-0x0000000001000000-0x0000000001006000-memory.dmp

Download

memory/3872-14-0x0000000001000000-0x0000000001006000-memory.dmp

Download

memory/3872-5-0x0000000077B42000-0x0000000077B43000-memory.dmp

Download

memory/3872-7-0x00007FFCB8050000-0x00007FFCB8245000-memory.dmp

Download

memory/4644-4-0x0000000002340000-0x0000000002D40000-memory.dmp

Download

memory/4644-9-0x0000000002340000-0x0000000002D40000-memory.dmp

Download

memory/4644-8-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/4644-0-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/4644-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Download