tinba | 19a66fa8aea2a47d1994bd913229c10e2e99f66d44b061415243c42cbc8fbda1

General

Target

86be8e9c11dcf4a3c9054bbd48e5f380N.exe
Size

45KB
MD5

86be8e9c11dcf4a3c9054bbd48e5f380
SHA1

74f6eded72e56d654bdcb5ec17c2efd2b9fef3fe
SHA256

19a66fa8aea2a47d1994bd913229c10e2e99f66d44b061415243c42cbc8fbda1
SHA512

18801a6a6d7de01854289ad57bb31bf50d5b71f74d8c4c786abe195c3864b8f43c5254d41a603bc486bf1fbdea8bff674828d235a94077306f0110af5b5ef785
SSDEEP

768:UhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:YsWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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/4460-0-0x0000000000400000-0x000000000041D000-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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FC94FCFE = "C:\\Users\\Admin\\AppData\\Roaming\\FC94FCFE\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1500	4272	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	86be8e9c11dcf4a3c9054bbd48e5f380N.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
4272	winver.exe
4272	winver.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4272	winver.exe
3456	Explorer.EXE
3456	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3456	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 4272	4460	86be8e9c11dcf4a3c9054bbd48e5f380N.exe	85
PID 4460 wrote to memory of 4272	4460	86be8e9c11dcf4a3c9054bbd48e5f380N.exe	85
PID 4460 wrote to memory of 4272	4460	86be8e9c11dcf4a3c9054bbd48e5f380N.exe	85
PID 4460 wrote to memory of 4272	4460	86be8e9c11dcf4a3c9054bbd48e5f380N.exe	85
PID 4272 wrote to memory of 3456	4272	winver.exe	56
PID 4272 wrote to memory of 2636	4272	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2636

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:3456
- C:\Users\Admin\AppData\Local\Temp\86be8e9c11dcf4a3c9054bbd48e5f380N.exe
  "C:\Users\Admin\AppData\Local\Temp\86be8e9c11dcf4a3c9054bbd48e5f380N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4460
- - 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:4272
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4272 -s 352
      4⤵
      Program crash
      PID:1500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4272 -ip 4272
1⤵
PID:2028

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

Replay Monitor

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Downloads

memory/2636-16-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2636-19-0x00007FF83A350000-0x00007FF83A351000-memory.dmp

Filesize
4KB

Download
memory/3456-8-0x00007FF83A360000-0x00007FF83A361000-memory.dmp

Filesize
4KB

Download
memory/3456-12-0x00007FF83A340000-0x00007FF83A341000-memory.dmp

Filesize
4KB

Download
memory/3456-6-0x00007FF83A1CD000-0x00007FF83A1CE000-memory.dmp

Filesize
4KB

Download
memory/3456-2-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/3456-3-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/4272-5-0x0000000077D52000-0x0000000077D53000-memory.dmp

Filesize
4KB

Download
memory/4272-7-0x00007FF83A130000-0x00007FF83A325000-memory.dmp

Filesize
2.0MB

Download
memory/4272-17-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Filesize
24KB

Download
memory/4272-14-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Filesize
24KB

Download
memory/4460-4-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/4460-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4460-11-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/4460-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4460-1-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads