tinba | f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07ae

General

Target

f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07aeN.exe
Size

45KB
MD5

66002e4eb241628104287f1392cdb490
SHA1

106905df54ee2e8a63f93970b7dc92ae096ee10b
SHA256

f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07ae
SHA512

a761ad99ed6b14829acab7509c145eeeb5f8ab30a0358c798db5485e7315512b32198102ad83df8c7e40d78acfeb726d890f337d48d4ab13f8a47ba309a01258
SSDEEP

768:nhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:hsWE9N5dFu53dsniQaB/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

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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6F0159F8 = "C:\\Users\\Admin\\AppData\\Roaming\\6F0159F8\\bin.exe"	winver.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4784-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3496	4692	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	f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07aeN.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
4692	winver.exe
4692	winver.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4692	winver.exe
3436	Explorer.EXE
3436	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3436	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 4692	4784	f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07aeN.exe	85
PID 4784 wrote to memory of 4692	4784	f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07aeN.exe	85
PID 4784 wrote to memory of 4692	4784	f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07aeN.exe	85
PID 4784 wrote to memory of 4692	4784	f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07aeN.exe	85
PID 4692 wrote to memory of 3436	4692	winver.exe	56
PID 4692 wrote to memory of 2968	4692	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2968

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:3436
- C:\Users\Admin\AppData\Local\Temp\f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07aeN.exe
  "C:\Users\Admin\AppData\Local\Temp\f5ea71a3a5a423c12e7f9c6df65ac4a9ea1f6552f7e4f93eacf20bb56e5c07aeN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4784
- - 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:4692
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 352
      4⤵
      Program crash
      PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4692 -ip 4692
1⤵
PID:2328

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/2968-20-0x00007FFCF3A90000-0x00007FFCF3A91000-memory.dmp

Filesize
4KB

Download
memory/2968-17-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3436-9-0x00007FFCF3AA0000-0x00007FFCF3AA1000-memory.dmp

Filesize
4KB

Download
memory/3436-2-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3436-3-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3436-6-0x00007FFCF390D000-0x00007FFCF390E000-memory.dmp

Filesize
4KB

Download
memory/3436-7-0x00007FFCF390C000-0x00007FFCF390D000-memory.dmp

Filesize
4KB

Download
memory/3436-13-0x00007FFCF3A80000-0x00007FFCF3A81000-memory.dmp

Filesize
4KB

Download
memory/4692-8-0x00007FFCF3870000-0x00007FFCF3A65000-memory.dmp

Filesize
2.0MB

Download
memory/4692-5-0x00000000772F2000-0x00000000772F3000-memory.dmp

Filesize
4KB

Download
memory/4692-15-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/4692-18-0x00000000025A0000-0x00000000025A6000-memory.dmp

Filesize
24KB

Download
memory/4784-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4784-11-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4784-12-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/4784-4-0x0000000002270000-0x0000000002C70000-memory.dmp

Filesize
10.0MB

Download
memory/4784-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads