tinba | 8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 20:31

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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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\201AB293 = "C:\\Users\\Admin\\AppData\\Roaming\\201AB293\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1436	3620	WerFault.exe	84

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 2 IoCs

pid	Process
3620	winver.exe
3620	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3620	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 3620	1324	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	84
PID 1324 wrote to memory of 3620	1324	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	84
PID 1324 wrote to memory of 3620	1324	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	84
PID 1324 wrote to memory of 3620	1324	8c8cc94d235f1ae047180ad04961c6e741d076399bd35848c6d01f258af2133f.exe	84
PID 3620 wrote to memory of 3424	3620	winver.exe	56
PID 3620 wrote to memory of 2876	3620	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2876

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3424
- 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:1324
- - 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:3620
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 352
      4⤵
      Program crash
      PID:1436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3620 -ip 3620
1⤵
PID:436

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

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Downloads

memory/1324-0-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/1324-3-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/1324-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1324-8-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/2876-12-0x0000000000B10000-0x0000000000B16000-memory.dmp

Filesize
24KB

Download
memory/3424-2-0x0000000001310000-0x0000000001316000-memory.dmp

Filesize
24KB

Download
memory/3424-1-0x0000000001310000-0x0000000001316000-memory.dmp

Filesize
24KB

Download
memory/3424-5-0x00007FFC6DE0D000-0x00007FFC6DE0E000-memory.dmp

Filesize
4KB

Download
memory/3620-4-0x0000000077412000-0x0000000077413000-memory.dmp

Filesize
4KB

Download
memory/3620-6-0x00007FFC6DD70000-0x00007FFC6DF65000-memory.dmp

Filesize
2.0MB

Download
memory/3620-10-0x0000000000C60000-0x0000000000C66000-memory.dmp

Filesize
24KB

Download
memory/3620-13-0x0000000000C60000-0x0000000000C66000-memory.dmp

Filesize
24KB

Download