tinba | 90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636

Analysis

max time kernel
119s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 09:08

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General

Target

90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636.exe
Size

123KB
MD5

7c98c0878b33e3987cc2e9d66344605e
SHA1

83356419aaba4d4676146938afd057cfe3441ae9
SHA256

90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636
SHA512

de65e076140991bddb3e220fd24be12dd9974ac0fbd06da70db6b21f3cd7d618ccbde54a2a9f6cd7e72fb9968ef939ab2dae3494b5d6a74278fe89a7d4c196bd
SSDEEP

3072:D8q8/KGHNOMZXJEEOvd44Ts2ktrAN9j3gli0B0vHs7y5uoRz4s:Dr8/KCXEEQd4oErAN9cPEZ5B

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1403F030 = "C:\\Users\\Admin\\AppData\\Roaming\\1403F030\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4000	2496	WerFault.exe	82

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	90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2496	winver.exe
2496	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2496	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 972 wrote to memory of 2496	972	90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636.exe	82
PID 972 wrote to memory of 2496	972	90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636.exe	82
PID 972 wrote to memory of 2496	972	90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636.exe	82
PID 972 wrote to memory of 2496	972	90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636.exe	82
PID 2496 wrote to memory of 3500	2496	winver.exe	56
PID 2496 wrote to memory of 2896	2496	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2896

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3500
- C:\Users\Admin\AppData\Local\Temp\90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636.exe
  "C:\Users\Admin\AppData\Local\Temp\90701a3781f6aece6aaf1d3605a02eedf159c9ae5ca685ded71b19bdfff20636.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:972
- - 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:2496
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 352
      4⤵
      Program crash
      PID:4000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2496 -ip 2496
1⤵
PID:1816

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/972-0-0x00000000023E0000-0x00000000023E2000-memory.dmp

Filesize
8KB

Download
memory/972-8-0x00000000023F0000-0x0000000002DF0000-memory.dmp

Filesize
10.0MB

Download
memory/972-7-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/972-3-0x00000000023F0000-0x0000000002DF0000-memory.dmp

Filesize
10.0MB

Download
memory/2496-6-0x00007FFCC3850000-0x00007FFCC3A45000-memory.dmp

Filesize
2.0MB

Download
memory/2496-4-0x0000000077482000-0x0000000077483000-memory.dmp

Filesize
4KB

Download
memory/2496-10-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/2496-13-0x0000000000AD0000-0x0000000000AD6000-memory.dmp

Filesize
24KB

Download
memory/2496-14-0x00007FFCC3850000-0x00007FFCC3A45000-memory.dmp

Filesize
2.0MB

Download
memory/2896-12-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3500-5-0x00007FFCC38ED000-0x00007FFCC38EE000-memory.dmp

Filesize
4KB

Download
memory/3500-2-0x00000000032C0000-0x00000000032C6000-memory.dmp

Filesize
24KB

Download
memory/3500-1-0x00000000032C0000-0x00000000032C6000-memory.dmp

Filesize
24KB

Download