tinba | 8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5

Analysis

max time kernel
106s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 01:34

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General

Target

8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5N.exe
Size

45KB
MD5

be3093753f21b22af79bf21e14b87570
SHA1

f23573c34d5ef2fffccfec42ef130dc68626e1d0
SHA256

8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5
SHA512

168707d9f15750f2cd7d8d87b562994a3676e3ad7065dd9148955f335bdf9b6970c73910a19cbc91f6d1eba6492af7c1c8fe6f96ffc69b42f896b55140254b34
SSDEEP

768:dhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2V:fsWE9N5dFu53dsniQaB/xZ14n7zIF+q5

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\3B758CFE = "C:\\Users\\Admin\\AppData\\Roaming\\3B758CFE\\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/4584-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4948	4504	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	8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4504	winver.exe
4504	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4504	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 4504	4584	8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5N.exe	83
PID 4584 wrote to memory of 4504	4584	8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5N.exe	83
PID 4584 wrote to memory of 4504	4584	8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5N.exe	83
PID 4584 wrote to memory of 4504	4584	8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5N.exe	83
PID 4504 wrote to memory of 3444	4504	winver.exe	56
PID 4504 wrote to memory of 2632	4504	winver.exe	45

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2632

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5N.exe
  "C:\Users\Admin\AppData\Local\Temp\8f280c936450e15f81efb812e5ac40bdbbd2ce2eb7f4f7fb2a2250e36537b4d5N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4584
- - 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:4504
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 352
      4⤵
      Program crash
      PID:4948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4504 -ip 4504
1⤵
PID:716

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/2632-12-0x0000000000E80000-0x0000000000E86000-memory.dmp

Filesize
24KB

Download
memory/3444-3-0x0000000000B40000-0x0000000000B46000-memory.dmp

Filesize
24KB

Download
memory/3444-2-0x0000000000B40000-0x0000000000B46000-memory.dmp

Filesize
24KB

Download
memory/3444-5-0x00007FF992D0D000-0x00007FF992D0E000-memory.dmp

Filesize
4KB

Download
memory/4504-6-0x00007FF992C70000-0x00007FF992E65000-memory.dmp

Filesize
2.0MB

Download
memory/4504-10-0x0000000002CD0000-0x0000000002CD6000-memory.dmp

Filesize
24KB

Download
memory/4504-13-0x0000000002CD0000-0x0000000002CD6000-memory.dmp

Filesize
24KB

Download
memory/4584-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4584-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/4584-4-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/4584-7-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4584-8-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download