tinba | 3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798

Analysis

max time kernel
113s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2025 09:54

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General

Target

3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe
Size

45KB
MD5

78ee2e2c78c01117c8998d34320086a0
SHA1

156cd312f1245c72725c34783605f423e92b0d3d
SHA256

3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798
SHA512

c787b48355cfa14691edfa0f566563f2b50c77ae3ee26522262dba4362bc672ffbfdd9c9059b7d2d4fe0e24e0c2a446b1f8485ae70006d79cc111c7acacd7c62
SSDEEP

768:EhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ23:osWE9N5dFu53dsniQaB/xZ14n7zIF+qj

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A7C42249 = "C:\\Users\\Admin\\AppData\\Roaming\\A7C42249\\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/3676-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2036	2672	WerFault.exe	87

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	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2672	winver.exe
2672	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
2672	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 2672	3676	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	87
PID 3676 wrote to memory of 2672	3676	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	87
PID 3676 wrote to memory of 2672	3676	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	87
PID 3676 wrote to memory of 2672	3676	3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe	87
PID 2672 wrote to memory of 3472	2672	winver.exe	56
PID 2672 wrote to memory of 2648	2672	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:3472
- C:\Users\Admin\AppData\Local\Temp\3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe
  "C:\Users\Admin\AppData\Local\Temp\3cdb3043f85f8466f2df2dc19b405571a0ba0f48d3f0f10813d79dfd07db3798N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3676
- - 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:2672
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2672 -s 356
      4⤵
      Program crash
      PID:2036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2672 -ip 2672
1⤵
PID:1660

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

Replay Monitor

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Downloads

memory/2648-14-0x0000000000FE0000-0x0000000000FE6000-memory.dmp

Filesize
24KB

Download
memory/2672-5-0x0000000001410000-0x0000000001416000-memory.dmp

Filesize
24KB

Download
memory/2672-15-0x0000000001410000-0x0000000001416000-memory.dmp

Filesize
24KB

Download
memory/2672-8-0x00007FFD83130000-0x00007FFD83325000-memory.dmp

Filesize
2.0MB

Download
memory/2672-6-0x0000000077C42000-0x0000000077C43000-memory.dmp

Filesize
4KB

Download
memory/3472-7-0x00007FFD831CD000-0x00007FFD831CE000-memory.dmp

Filesize
4KB

Download
memory/3472-2-0x0000000001530000-0x0000000001536000-memory.dmp

Filesize
24KB

Download
memory/3472-3-0x0000000001530000-0x0000000001536000-memory.dmp

Filesize
24KB

Download
memory/3676-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3676-4-0x0000000002230000-0x0000000002C30000-memory.dmp

Filesize
10.0MB

Download
memory/3676-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3676-10-0x0000000002230000-0x0000000002C30000-memory.dmp

Filesize
10.0MB

Download
memory/3676-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download