tinba | 99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009ee

Analysis

max time kernel
118s
max time network
90s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-02-2025 07:42

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General

Target

99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe
Size

110KB
MD5

bc73f4c7a7dd70877d37ca1b7e7c54f0
SHA1

fa6d415bf0c17a3c9fc9059d949fdf7f2b384541
SHA256

99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009ee
SHA512

d0e4a59bdc54677f4994226af4f28b076d5798941ffa449dcaa41e185e32d90da33b960e841a46ba917d70fc5ca2454ff225220f1ead5a589e525cb5eed4afbd
SSDEEP

1536:LiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0EQ:LiyvRmDLs/ZrwWJjAqGcRJ2hQ

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\FC3F7934 = "C:\\Users\\Admin\\AppData\\Roaming\\FC3F7934\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

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	99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe
2688	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2688	winver.exe
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2688	2696	99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe	31
PID 2696 wrote to memory of 2688	2696	99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe	31
PID 2696 wrote to memory of 2688	2696	99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe	31
PID 2696 wrote to memory of 2688	2696	99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe	31
PID 2696 wrote to memory of 2688	2696	99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe	31
PID 2688 wrote to memory of 1192	2688	winver.exe	21
PID 2688 wrote to memory of 1100	2688	winver.exe	19
PID 2688 wrote to memory of 1160	2688	winver.exe	20
PID 2688 wrote to memory of 1192	2688	winver.exe	21
PID 2688 wrote to memory of 1640	2688	winver.exe	25

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1100

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1160

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1192
- C:\Users\Admin\AppData\Local\Temp\99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe
  "C:\Users\Admin\AppData\Local\Temp\99bffbb6ed529c12dc661dfafff50cd38ac0464503a69d7fa1b63187c09009eeN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2696
- - 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:2688

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1640

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/1100-26-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1100-33-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/1100-28-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1160-30-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1160-29-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1160-21-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1192-4-0x0000000002B00000-0x0000000002B06000-memory.dmp

Filesize
24KB

Download
memory/1192-23-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

Filesize
24KB

Download
memory/1192-3-0x0000000002B00000-0x0000000002B06000-memory.dmp

Filesize
24KB

Download
memory/1192-2-0x0000000002B00000-0x0000000002B06000-memory.dmp

Filesize
24KB

Download
memory/1192-10-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1192-31-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

Filesize
24KB

Download
memory/1640-25-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1640-32-0x0000000076D91000-0x0000000076D92000-memory.dmp

Filesize
4KB

Download
memory/1640-36-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2688-7-0x0000000076F40000-0x0000000076F41000-memory.dmp

Filesize
4KB

Download
memory/2688-27-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/2688-6-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/2688-8-0x0000000076F3F000-0x0000000076F40000-memory.dmp

Filesize
4KB

Download
memory/2688-9-0x0000000076F3F000-0x0000000076F41000-memory.dmp

Filesize
8KB

Download
memory/2688-11-0x0000000076D40000-0x0000000076EE9000-memory.dmp

Filesize
1.7MB

Download
memory/2696-13-0x0000000001D20000-0x0000000002720000-memory.dmp

Filesize
10.0MB

Download
memory/2696-12-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2696-5-0x0000000001D20000-0x0000000002720000-memory.dmp

Filesize
10.0MB

Download
memory/2696-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2696-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download