tinba | ae2620577d793c33c4fad31722970111deabc3f9d96c8894147916a5f10d186f

Analysis

max time kernel
118s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2024, 04:13

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General

Target
66a6f878614548dd5fc724627da63c80N.exe
Size 45KB
Sample240915-es8m1svfpc
SHA256 ae2620577d793c33c4fad31722970111deabc3f9d96c8894147916a5f10d186f
MD5 66a6f878614548dd5fc724627da63c80
SHA1 90a5aabe132086447bce4215b1c117bb381f355e
SHA512 901ce49a2c83f362673916a0752bddd46649ac727a59c028f99c207140f711c083b3a212f94651b2c2f6e9aa6965175c7cd26ad29ed1f99bdd05e2b8428a1232
SSDEEP 768:xhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:LsWE9N5dFu53dsniQaB/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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2004-0-0x0000000000400000-0x000000000041D000-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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\23962D10 = "C:\\Users\\Admin\\AppData\\Roaming\\23962D10\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3312	4132	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	66a6f878614548dd5fc724627da63c80N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4132	winver.exe
4132	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3472	Explorer.EXE
Token: SeCreatePagefilePrivilege	3472	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4132	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3472	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 4132	2004	66a6f878614548dd5fc724627da63c80N.exe	84
PID 2004 wrote to memory of 4132	2004	66a6f878614548dd5fc724627da63c80N.exe	84
PID 2004 wrote to memory of 4132	2004	66a6f878614548dd5fc724627da63c80N.exe	84
PID 2004 wrote to memory of 4132	2004	66a6f878614548dd5fc724627da63c80N.exe	84
PID 4132 wrote to memory of 3472	4132	winver.exe	56
PID 4132 wrote to memory of 2628	4132	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2628

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3472
- C:\Users\Admin\AppData\Local\Temp\66a6f878614548dd5fc724627da63c80N.exe
  "C:\Users\Admin\AppData\Local\Temp\66a6f878614548dd5fc724627da63c80N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2004
- - 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:4132
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4132 -s 352
      4⤵
      Program crash
      PID:3312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4132 -ip 4132
1⤵
PID:4072

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/2004-0-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/2004-1-0x00000000006B0000-0x00000000006B1000-memory.dmp

Download

memory/2004-11-0x0000000002380000-0x0000000002D80000-memory.dmp

Download

memory/2004-4-0x0000000002380000-0x0000000002D80000-memory.dmp

Download

memory/2004-10-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/2628-15-0x00000000008C0000-0x00000000008C6000-memory.dmp

Download

memory/3472-9-0x00007FF81E100000-0x00007FF81E101000-memory.dmp

Download

memory/3472-7-0x00007FF81DF6D000-0x00007FF81DF6E000-memory.dmp

Download

memory/3472-2-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

Download

memory/3472-3-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

Download

memory/4132-5-0x00000000005D0000-0x00000000005D6000-memory.dmp

Download

memory/4132-8-0x00007FF81DED0000-0x00007FF81E0C5000-memory.dmp

Download

memory/4132-6-0x00000000779E2000-0x00000000779E3000-memory.dmp

Download

memory/4132-16-0x00000000005D0000-0x00000000005D6000-memory.dmp

Download