tinba | c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 13:47

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General

Target

c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe
Size

49KB
MD5

e424c4dc36c4e23aaa999e6dccf46bb6
SHA1

348571756ae25c3d3555db7708945a62faea443a
SHA256

c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021
SHA512

203a901a87a27cb51273abc5771e80248b8fa2bd022857ac7dd8417622437abbd6936e48f9d6251a43989792690226afee25e8f68d63582e46c17b569cd15a6a
SSDEEP

768:EY9XSIMHJ3frSSVRpUvVfaG+3flG1Eq/mxO64g/CWCcO5ZFtR9Jx:Duu0056flS5/Z64gqcO5ZFv9Jx

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\26FF5675 = "C:\\Users\\Admin\\AppData\\Roaming\\26FF5675\\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	c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 57 IoCs

pid	Process
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe
2396	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2396	winver.exe
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2396	2380	c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe	31
PID 2380 wrote to memory of 2396	2380	c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe	31
PID 2380 wrote to memory of 2396	2380	c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe	31
PID 2380 wrote to memory of 2396	2380	c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe	31
PID 2380 wrote to memory of 2396	2380	c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe	31
PID 2396 wrote to memory of 1212	2396	winver.exe	21
PID 2396 wrote to memory of 1116	2396	winver.exe	19
PID 2396 wrote to memory of 1176	2396	winver.exe	20
PID 2396 wrote to memory of 1212	2396	winver.exe	21
PID 2396 wrote to memory of 1516	2396	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⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1212
- C:\Users\Admin\AppData\Local\Temp\c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe
  "C:\Users\Admin\AppData\Local\Temp\c904b17422b8f295017d999b3ccc4e6f9d56ee811184a2d51795717cbbb41021.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2380
- - 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:2396

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1516

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/1116-25-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1116-26-0x0000000077301000-0x0000000077302000-memory.dmp

Filesize
4KB

Download
memory/1176-19-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1176-27-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1176-34-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1176-28-0x0000000077301000-0x0000000077302000-memory.dmp

Filesize
4KB

Download
memory/1212-9-0x0000000077301000-0x0000000077302000-memory.dmp

Filesize
4KB

Download
memory/1212-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1212-3-0x0000000002DB0000-0x0000000002DB6000-memory.dmp

Filesize
24KB

Download
memory/1212-2-0x0000000002DB0000-0x0000000002DB6000-memory.dmp

Filesize
24KB

Download
memory/1212-1-0x0000000002DB0000-0x0000000002DB6000-memory.dmp

Filesize
24KB

Download
memory/1212-29-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1516-32-0x0000000077301000-0x0000000077302000-memory.dmp

Filesize
4KB

Download
memory/1516-31-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download
memory/1516-24-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download
memory/2380-12-0x0000000001CE0000-0x00000000026E0000-memory.dmp

Filesize
10.0MB

Download
memory/2380-0-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2380-11-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2380-4-0x0000000001CE0000-0x00000000026E0000-memory.dmp

Filesize
10.0MB

Download
memory/2396-10-0x00000000772B0000-0x0000000077459000-memory.dmp

Filesize
1.7MB

Download
memory/2396-8-0x00000000774AF000-0x00000000774B1000-memory.dmp

Filesize
8KB

Download
memory/2396-7-0x00000000774AF000-0x00000000774B0000-memory.dmp

Filesize
4KB

Download
memory/2396-30-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download
memory/2396-6-0x00000000774B0000-0x00000000774B1000-memory.dmp

Filesize
4KB

Download
memory/2396-5-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download