tinba | 993de1c6ae11fd1e0ad4ecf74da5029eaf43a069a6d4d8c8d3abb413accd03c3

General

Target

828fb497a6b500ee04e15445908e7480N.exe
Size

34KB
MD5

828fb497a6b500ee04e15445908e7480
SHA1

5d1239d3cfcec6f0794abd6f7e66fb62149ad565
SHA256

993de1c6ae11fd1e0ad4ecf74da5029eaf43a069a6d4d8c8d3abb413accd03c3
SHA512

13dd7175bd900437191503f5c848a759a07c5914d026fd737c7307dc285c0be1e53a7bad422603077fc14bf6a3b6c7c06b95cd7daeb9088dd7b6a698a0680443
SSDEEP

768:rp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:rpYoX58z1uirL98xMWnT0OQ9J2

Score

10^/10

tinba banker discovery persistence trojan upx

Malware Config

Signatures

Tinba / TinyBanker
Banking trojan which uses packet sniffing to steal data.
trojan banker tinba

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5084-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6FB77A2A = "C:\\Users\\Admin\\AppData\\Roaming\\6FB77A2A\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1640	4168	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	828fb497a6b500ee04e15445908e7480N.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4168	winver.exe
4168	winver.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4168	winver.exe
3480	Explorer.EXE
3480	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3480	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 4168	5084	828fb497a6b500ee04e15445908e7480N.exe	85
PID 5084 wrote to memory of 4168	5084	828fb497a6b500ee04e15445908e7480N.exe	85
PID 5084 wrote to memory of 4168	5084	828fb497a6b500ee04e15445908e7480N.exe	85
PID 5084 wrote to memory of 4168	5084	828fb497a6b500ee04e15445908e7480N.exe	85
PID 4168 wrote to memory of 3480	4168	winver.exe	56
PID 4168 wrote to memory of 2576	4168	winver.exe	43

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2576

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3480
- C:\Users\Admin\AppData\Local\Temp\828fb497a6b500ee04e15445908e7480N.exe
  "C:\Users\Admin\AppData\Local\Temp\828fb497a6b500ee04e15445908e7480N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5084
- - 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:4168
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4168 -s 352
      4⤵
      Program crash
      PID:1640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4168 -ip 4168
1⤵
PID:2908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2576-17-0x0000000000DB0000-0x0000000000DB6000-memory.dmp

Filesize
24KB

Download
memory/3480-9-0x00007FF806520000-0x00007FF806521000-memory.dmp

Filesize
4KB

Download
memory/3480-7-0x00007FF80638D000-0x00007FF80638E000-memory.dmp

Filesize
4KB

Download
memory/3480-2-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/3480-13-0x00007FF806500000-0x00007FF806501000-memory.dmp

Filesize
4KB

Download
memory/3480-3-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/4168-8-0x00007FF8062F0000-0x00007FF8064E5000-memory.dmp

Filesize
2.0MB

Download
memory/4168-5-0x0000000001170000-0x0000000001176000-memory.dmp

Filesize
24KB

Download
memory/4168-6-0x0000000076EF2000-0x0000000076EF3000-memory.dmp

Filesize
4KB

Download
memory/4168-18-0x0000000001170000-0x0000000001176000-memory.dmp

Filesize
24KB

Download
memory/5084-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5084-11-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5084-12-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/5084-4-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/5084-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads