tinba | 2c8f85267b5e1db9f38d1b6d8562a313d0e9e8ce8dc1fc502e9a53ff6d1333df

General

Target

41be6ed9df42c6e4ed4b86d751462680N.exe
Size

45KB
MD5

41be6ed9df42c6e4ed4b86d751462680
SHA1

eddbdf0f36c1abcac7e684e095beea3b2c5a6280
SHA256

2c8f85267b5e1db9f38d1b6d8562a313d0e9e8ce8dc1fc502e9a53ff6d1333df
SHA512

1bfd8a7ee09a76f5a17b8edfada7b74d159c6eb4dbdc41ef379e7b4f35f7c525d73230355c676934145e5dad212c4f8f588b3662754e2e0b436c6d63825ba4e5
SSDEEP

768:phP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:zsWE9N5dFu53dsniQaB/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/2296-0-0x0000000000400000-0x000000000041D000-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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0B475EF6 = "C:\\Users\\Admin\\AppData\\Roaming\\0B475EF6\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1948	4308	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	41be6ed9df42c6e4ed4b86d751462680N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.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
4308	winver.exe
4308	winver.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4308	winver.exe
3424	Explorer.EXE
3424	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3424	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 4308	2296	41be6ed9df42c6e4ed4b86d751462680N.exe	85
PID 2296 wrote to memory of 4308	2296	41be6ed9df42c6e4ed4b86d751462680N.exe	85
PID 2296 wrote to memory of 4308	2296	41be6ed9df42c6e4ed4b86d751462680N.exe	85
PID 2296 wrote to memory of 4308	2296	41be6ed9df42c6e4ed4b86d751462680N.exe	85
PID 4308 wrote to memory of 3424	4308	winver.exe	56
PID 4308 wrote to memory of 3056	4308	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3056

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:3424
- C:\Users\Admin\AppData\Local\Temp\41be6ed9df42c6e4ed4b86d751462680N.exe
  "C:\Users\Admin\AppData\Local\Temp\41be6ed9df42c6e4ed4b86d751462680N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2296
- - 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:4308
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 352
      4⤵
      Program crash
      PID:1948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 4308 -ip 4308
1⤵
PID:4560

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/2296-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2296-1-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/2296-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2296-4-0x00000000020E0000-0x0000000002AE0000-memory.dmp

Filesize
10.0MB

Download
memory/2296-10-0x00000000020E0000-0x0000000002AE0000-memory.dmp

Filesize
10.0MB

Download
memory/3056-15-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3424-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/3424-7-0x00007FFF3110C000-0x00007FFF3110D000-memory.dmp

Filesize
4KB

Download
memory/3424-8-0x00007FFF312A0000-0x00007FFF312A1000-memory.dmp

Filesize
4KB

Download
memory/3424-5-0x00007FFF3110D000-0x00007FFF3110E000-memory.dmp

Filesize
4KB

Download
memory/3424-11-0x00007FFF31280000-0x00007FFF31281000-memory.dmp

Filesize
4KB

Download
memory/3424-3-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/4308-6-0x00007FFF31070000-0x00007FFF31265000-memory.dmp

Filesize
2.0MB

Download
memory/4308-13-0x0000000001EE0000-0x0000000001EE6000-memory.dmp

Filesize
24KB

Download
memory/4308-16-0x0000000001EE0000-0x0000000001EE6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads