tinba | cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449

Analysis

max time kernel
119s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/09/2024, 18:46

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General

Target

cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe
Size

89KB
MD5

f99d4f2e189c65391fa4964289ee2a80
SHA1

73af09397d2aa6429313e737e668205e74b47383
SHA256

cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449
SHA512

b47cbb189c2e509c8f7ef85c35b20bbe10519d51f2f5072efadf91e4199ecac76b5494c0ddca91a0fec972948b3425cbf071eb05d7a66dfd94274b573b19a288
SSDEEP

1536:g9o65gQK3Zm+Mt9RV5O8oQ9cXFunGm6ManhFLnBqHan6owwosTk8vxA:g9o6fK2XqXQwhnHlqQo8Lvy

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

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\C9E5FF26 = "C:\\Users\\Admin\\AppData\\Roaming\\C9E5FF26\\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	cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe
1732	winver.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1732	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 11 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 1732	2524	cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe	30
PID 2524 wrote to memory of 1732	2524	cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe	30
PID 2524 wrote to memory of 1732	2524	cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe	30
PID 2524 wrote to memory of 1732	2524	cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe	30
PID 2524 wrote to memory of 1732	2524	cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe	30
PID 1732 wrote to memory of 1192	1732	winver.exe	21
PID 1732 wrote to memory of 1104	1732	winver.exe	19
PID 1732 wrote to memory of 1160	1732	winver.exe	20
PID 1732 wrote to memory of 1192	1732	winver.exe	21
PID 1732 wrote to memory of 1736	1732	winver.exe	25
PID 1732 wrote to memory of 2524	1732	winver.exe	29

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1104

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\cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe
  "C:\Users\Admin\AppData\Local\Temp\cc8dc3c66e11496988e25b21b80e9004b4fda6c2c5d778af96a47e9e4fc9e449N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2524
- - 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:1732

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1736

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/1104-27-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1104-28-0x0000000077CD1000-0x0000000077CD2000-memory.dmp

Filesize
4KB

Download
memory/1160-32-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1160-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1192-5-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/1192-2-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/1192-1-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/1192-22-0x0000000002D10000-0x0000000002D16000-memory.dmp

Filesize
24KB

Download
memory/1192-12-0x0000000077CD1000-0x0000000077CD2000-memory.dmp

Filesize
4KB

Download
memory/1192-29-0x0000000002D10000-0x0000000002D16000-memory.dmp

Filesize
24KB

Download
memory/1732-13-0x0000000077C80000-0x0000000077E29000-memory.dmp

Filesize
1.7MB

Download
memory/1732-10-0x0000000077E7F000-0x0000000077E81000-memory.dmp

Filesize
8KB

Download
memory/1732-7-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1732-39-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1732-3-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/1732-9-0x0000000077E7F000-0x0000000077E80000-memory.dmp

Filesize
4KB

Download
memory/1732-11-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/1732-8-0x0000000077E80000-0x0000000077E81000-memory.dmp

Filesize
4KB

Download
memory/1736-30-0x0000000001F30000-0x0000000001F36000-memory.dmp

Filesize
24KB

Download
memory/1736-31-0x0000000077CD1000-0x0000000077CD2000-memory.dmp

Filesize
4KB

Download
memory/1736-24-0x0000000001F30000-0x0000000001F36000-memory.dmp

Filesize
24KB

Download
memory/2524-0-0x00000000001D0000-0x00000000001D2000-memory.dmp

Filesize
8KB

Download
memory/2524-6-0x00000000025F0000-0x0000000002FF0000-memory.dmp

Filesize
10.0MB

Download
memory/2524-33-0x00000000025F0000-0x0000000002FF0000-memory.dmp

Filesize
10.0MB

Download
memory/2524-14-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download