tinba | 8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 20:29

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General

Target

8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe
Size

59KB
MD5

d0d1ab85ac71813f7d9cbe1987f7e9be
SHA1

4892e69afc8651a4be0fbbe00a4a9c55c8c15104
SHA256

8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f
SHA512

a90b7e0ef26308c878d77258091df4dd7d5e4388b987491b439756979aff2cfad3e097082443a1c3ed92fb706d0ee039e0d69fff664cf5e459e9e6d1f01cf459
SSDEEP

768:M+6p+OMlgGMCWhfDzU7f7JDgiFP7xI57+sByZ+XsfXpwtGc9J3:M+mFM2HXKZgiFP7xIksu+XM5O9J3

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\6A4371D1 = "C:\\Users\\Admin\\AppData\\Roaming\\6A4371D1\\bin.exe"	winver.exe

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	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe
2104	winver.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2104	winver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2104	1976	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	31
PID 1976 wrote to memory of 2104	1976	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	31
PID 1976 wrote to memory of 2104	1976	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	31
PID 1976 wrote to memory of 2104	1976	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	31
PID 1976 wrote to memory of 2104	1976	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	31
PID 2104 wrote to memory of 1204	2104	winver.exe	21
PID 2104 wrote to memory of 1116	2104	winver.exe	19
PID 2104 wrote to memory of 1176	2104	winver.exe	20
PID 2104 wrote to memory of 1204	2104	winver.exe	21
PID 2104 wrote to memory of 1624	2104	winver.exe	23

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1176

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1204
- C:\Users\Admin\AppData\Local\Temp\8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe
  "C:\Users\Admin\AppData\Local\Temp\8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1976
- - 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:2104

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1624

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/1116-24-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/1116-25-0x0000000076DC1000-0x0000000076DC2000-memory.dmp

Filesize
4KB

Download
memory/1176-31-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1176-19-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1176-29-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1204-3-0x0000000002630000-0x0000000002636000-memory.dmp

Filesize
24KB

Download
memory/1204-2-0x0000000002630000-0x0000000002636000-memory.dmp

Filesize
24KB

Download
memory/1204-1-0x0000000002630000-0x0000000002636000-memory.dmp

Filesize
24KB

Download
memory/1204-9-0x0000000076DC1000-0x0000000076DC2000-memory.dmp

Filesize
4KB

Download
memory/1204-21-0x0000000002610000-0x0000000002616000-memory.dmp

Filesize
24KB

Download
memory/1204-26-0x0000000002610000-0x0000000002616000-memory.dmp

Filesize
24KB

Download
memory/1624-27-0x0000000001E30000-0x0000000001E36000-memory.dmp

Filesize
24KB

Download
memory/1624-23-0x0000000001E30000-0x0000000001E36000-memory.dmp

Filesize
24KB

Download
memory/1624-28-0x0000000076DC1000-0x0000000076DC2000-memory.dmp

Filesize
4KB

Download
memory/1976-12-0x0000000001C60000-0x0000000002660000-memory.dmp

Filesize
10.0MB

Download
memory/1976-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1976-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/1976-4-0x0000000001C60000-0x0000000002660000-memory.dmp

Filesize
10.0MB

Download
memory/2104-30-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2104-6-0x0000000076F70000-0x0000000076F71000-memory.dmp

Filesize
4KB

Download
memory/2104-7-0x0000000076F6F000-0x0000000076F70000-memory.dmp

Filesize
4KB

Download
memory/2104-8-0x0000000076F6F000-0x0000000076F71000-memory.dmp

Filesize
8KB

Download
memory/2104-10-0x0000000076D70000-0x0000000076F19000-memory.dmp

Filesize
1.7MB

Download
memory/2104-5-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download