tinba | 7f30e3c954a307a43b1e7dae7d6769e7d83c76e74f54e1cd20daf7849d6b4e84

Analysis

max time kernel
146s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 21:39

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General

Target

6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7.exe
Size

96KB
MD5

42d6043b2470828883f624b8c22e56f2
SHA1

26e533b7bf95c6f8a3694a1887f29a0a76754ded
SHA256

6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7
SHA512

d64372a92ae9f0f2e5e03ba567b52ccc61ac550d8e614c25d29893dc5797ed17cefa6ad7faefb2ccbce193562156342324c48dedaf0be836cc2936c1acaef373
SSDEEP

1536:eiLOvRmmQegJW3aOgBbmAQ256/ZrwWnwqjhurmKFct:eiyvRmQKTLs/ZrwWJjAqGct

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\81EF92A6 = "C:\\Users\\Admin\\AppData\\Roaming\\81EF92A6\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3284	3644	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	6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3644	winver.exe
3644	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3644	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3492	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 3644	2136	6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7.exe	85
PID 2136 wrote to memory of 3644	2136	6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7.exe	85
PID 2136 wrote to memory of 3644	2136	6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7.exe	85
PID 2136 wrote to memory of 3644	2136	6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7.exe	85
PID 3644 wrote to memory of 3492	3644	winver.exe	56
PID 3644 wrote to memory of 2672	3644	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2672

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3492
- C:\Users\Admin\AppData\Local\Temp\6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7.exe
  "C:\Users\Admin\AppData\Local\Temp\6b3045381513d819c92c265c847fc05d9fe591b3f0bef449a368ae17fd23f4f7.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2136
- - 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:3644
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3644 -s 352
      4⤵
      Program crash
      PID:3284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3644 -ip 3644
1⤵
PID:3376

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/2136-9-0x00000000022E0000-0x0000000002CE0000-memory.dmp

Filesize
10.0MB

Download
memory/2136-3-0x00000000022E0000-0x0000000002CE0000-memory.dmp

Filesize
10.0MB

Download
memory/2136-8-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2136-0-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/2672-13-0x0000000000F50000-0x0000000000F56000-memory.dmp

Filesize
24KB

Download
memory/3492-2-0x00000000010A0000-0x00000000010A6000-memory.dmp

Filesize
24KB

Download
memory/3492-1-0x00000000010A0000-0x00000000010A6000-memory.dmp

Filesize
24KB

Download
memory/3492-5-0x00007FFA3332D000-0x00007FFA3332E000-memory.dmp

Filesize
4KB

Download
memory/3492-7-0x00007FFA334C0000-0x00007FFA334C1000-memory.dmp

Filesize
4KB

Download
memory/3644-4-0x00000000772D2000-0x00000000772D3000-memory.dmp

Filesize
4KB

Download
memory/3644-6-0x00007FFA33290000-0x00007FFA33485000-memory.dmp

Filesize
2.0MB

Download
memory/3644-11-0x00000000007A0000-0x00000000007A6000-memory.dmp

Filesize
24KB

Download
memory/3644-14-0x00000000007A0000-0x00000000007A6000-memory.dmp

Filesize
24KB

Download