tinba | 85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed

Analysis

max time kernel
114s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 23:35

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General

Target

85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed.exe
Size

45KB
MD5

0982dc2ab7dc8b9ddbbf5bfa6921c39c
SHA1

f3b23bb107826574c414341f0feb838a33f73c61
SHA256

85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed
SHA512

7122472299f6578a7c11500c41d15adf77c8ebfa64a9fa47950467f8fc80f04bb4d646cced69d943c91a5db8e0d937cf7a8c57c4c0e7f6444adf6b96a83fd7ef
SSDEEP

768:ghP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ29:csWE9N5dFu53dsniQaB/xZ14n7zIF+qB

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\BF2E7B2A = "C:\\Users\\Admin\\AppData\\Roaming\\BF2E7B2A\\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/3788-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4676	400	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	85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
400	winver.exe
400	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
400	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3788 wrote to memory of 400	3788	85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed.exe	84
PID 3788 wrote to memory of 400	3788	85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed.exe	84
PID 3788 wrote to memory of 400	3788	85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed.exe	84
PID 3788 wrote to memory of 400	3788	85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed.exe	84
PID 400 wrote to memory of 3432	400	winver.exe	56
PID 400 wrote to memory of 3000	400	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3000

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3432
- C:\Users\Admin\AppData\Local\Temp\85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed.exe
  "C:\Users\Admin\AppData\Local\Temp\85d493698d0e055bc24a30270d53bd78223a1227e4a82c5a5e31170ae3d29fed.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3788
- - 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:400
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 400 -s 352
      4⤵
      Program crash
      PID:4676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 400 -ip 400
1⤵
PID:2884

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/400-11-0x0000000002130000-0x0000000002136000-memory.dmp

Filesize
24KB

Download
memory/400-14-0x0000000002130000-0x0000000002136000-memory.dmp

Filesize
24KB

Download
memory/400-5-0x0000000077D52000-0x0000000077D53000-memory.dmp

Filesize
4KB

Download
memory/400-7-0x00007FFE82690000-0x00007FFE82885000-memory.dmp

Filesize
2.0MB

Download
memory/3000-13-0x0000000000E20000-0x0000000000E26000-memory.dmp

Filesize
24KB

Download
memory/3432-2-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/3432-3-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/3432-6-0x00007FFE8272D000-0x00007FFE8272E000-memory.dmp

Filesize
4KB

Download
memory/3788-4-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/3788-9-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Filesize
10.0MB

Download
memory/3788-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3788-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3788-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download