tinba | 3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41b

Analysis

max time kernel
118s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02/11/2024, 16:50

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General

Target
3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe
Size 59KB
Sample241102-vcbw4syrez
SHA256 3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41b
MD5 ab67e00a84dfd14838487a54bd3a7390
SHA1 1977ee27040b0995beb6ed813659daec8531c2bd
SHA512 1e8e18af7da3ede91f491a2980dc98a4d2f761be832e1f0a1976acc059fc2bd8c95583f609e4cf0d33e033ca2e90180172d9694900456fa1b9ea689ee51d0a3d
SSDEEP 768:4+6p+OMlgGMCWhfDzU7f7JDgiFP7xI57+sByZ+XsfXpwtGc9J1:4+mFM2HXKZgiFP7xIksu+XM5O9J1
MD5 SHA1 SHA512 SSDEEP

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\39BAB19D = "C:\\Users\\Admin\\AppData\\Roaming\\39BAB19D\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2552	2300	WerFault.exe	85

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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2300	winver.exe
2300	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2300	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3388	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 2300	4728	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	85
PID 4728 wrote to memory of 2300	4728	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	85
PID 4728 wrote to memory of 2300	4728	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	85
PID 4728 wrote to memory of 2300	4728	3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe	85
PID 2300 wrote to memory of 3388	2300	winver.exe	56
PID 2300 wrote to memory of 2488	2300	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2488

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3388
- C:\Users\Admin\AppData\Local\Temp\3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe
  "C:\Users\Admin\AppData\Local\Temp\3a012bd8406d27fdc756141b8124ab194dc57dba6ce0143ba1f2b9380256e41bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4728
- - 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:2300
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 352
      4⤵
      Program crash
      PID:2552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2300 -ip 2300
1⤵
PID:3304

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/2300-7-0x00007FFC22490000-0x00007FFC22685000-memory.dmp

Download

memory/2300-15-0x0000000000A70000-0x0000000000A76000-memory.dmp

Download

memory/2300-5-0x0000000077DB2000-0x0000000077DB3000-memory.dmp

Download

memory/2300-4-0x0000000000A70000-0x0000000000A76000-memory.dmp

Download

memory/2488-17-0x00007FFC226B0000-0x00007FFC226B1000-memory.dmp

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memory/2488-14-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

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memory/3388-6-0x00007FFC2252D000-0x00007FFC2252E000-memory.dmp

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memory/3388-10-0x00007FFC226C0000-0x00007FFC226C1000-memory.dmp

Download

memory/3388-1-0x0000000001000000-0x0000000001006000-memory.dmp

Download

memory/3388-2-0x0000000001000000-0x0000000001006000-memory.dmp

Download

memory/4728-0-0x0000000000680000-0x0000000000681000-memory.dmp

Download

memory/4728-8-0x0000000000400000-0x0000000000414000-memory.dmp

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memory/4728-9-0x0000000002210000-0x0000000002C10000-memory.dmp

Download

memory/4728-3-0x0000000002210000-0x0000000002C10000-memory.dmp

Download