tinba | 7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4

Analysis

max time kernel
103s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2024 00:23

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General

Target

7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4N.exe
Size

45KB
MD5

79f2bbbe05c55035dfd1d72098e207b0
SHA1

54fe5642b4377442d27047c998e8a808ffbd2bc5
SHA256

7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4
SHA512

18f3a6ede2ec7d0ea454231a645ebe1a12364abf49cd0b34c1602d33019be9c7dd5c17cb51702ecaded832b184ac82eac4688b1a2eb8199b41a23bd7c0c02726
SSDEEP

768:lhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:3sWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A594AECE = "C:\\Users\\Admin\\AppData\\Roaming\\A594AECE\\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/4376-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1152	1256	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	7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1256	winver.exe
1256	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
1256	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 1256	4376	7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4N.exe	83
PID 4376 wrote to memory of 1256	4376	7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4N.exe	83
PID 4376 wrote to memory of 1256	4376	7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4N.exe	83
PID 4376 wrote to memory of 1256	4376	7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4N.exe	83
PID 1256 wrote to memory of 3548	1256	winver.exe	56
PID 1256 wrote to memory of 2652	1256	winver.exe	44

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3548
- C:\Users\Admin\AppData\Local\Temp\7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4N.exe
  "C:\Users\Admin\AppData\Local\Temp\7a8b5ceb51215f4ffde73bb5cafbdbb7b4f3a675b4596d29462105b2f850b3e4N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4376
- - 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:1256
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1256 -s 352
      4⤵
      Program crash
      PID:1152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 1256 -ip 1256
1⤵
PID:216

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/1256-8-0x00007FFBB7E30000-0x00007FFBB8025000-memory.dmp

Filesize
2.0MB

Download
memory/1256-15-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/1256-6-0x0000000077DE2000-0x0000000077DE3000-memory.dmp

Filesize
4KB

Download
memory/1256-5-0x0000000000B50000-0x0000000000B56000-memory.dmp

Filesize
24KB

Download
memory/2652-14-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/3548-3-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3548-2-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3548-7-0x00007FFBB7ECD000-0x00007FFBB7ECE000-memory.dmp

Filesize
4KB

Download
memory/4376-4-0x0000000002300000-0x0000000002D00000-memory.dmp

Filesize
10.0MB

Download
memory/4376-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4376-10-0x0000000002300000-0x0000000002D00000-memory.dmp

Filesize
10.0MB

Download
memory/4376-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4376-1-0x0000000002150000-0x0000000002151000-memory.dmp

Filesize
4KB

Download