tinba | 8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593

General

Target

8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593N.exe
Size

98KB
MD5

f5d45c95cee135069addb1334fb841b0
SHA1

858bf22dcfa5ee3b1c44bbf915285a114d9eacf2
SHA256

8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593
SHA512

96abf6c56a057057ad613e775f801b8d9fdf74cd1b1fddf1d7db211de25cbcfb3790e56fd61f000b681ce5c4a3f659bac1e806c60d58c3b7fe2e859e7e0ddf23
SSDEEP

768:P+6p+OMlgGMCWhfDzU7f7JDgi9I57+sByZ+XsfXpwtG9ipelU9JF:P+mFM2HXKZgi9Iksu+XM57ipeq9JF

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
Tinba family
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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\F6AC7E3C = "C:\\Users\\Admin\\AppData\\Roaming\\F6AC7E3C\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3976	2900	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	8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593N.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
2900	winver.exe
2900	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
2900	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 2216 wrote to memory of 2900	2216	8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593N.exe	85
PID 2216 wrote to memory of 2900	2216	8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593N.exe	85
PID 2216 wrote to memory of 2900	2216	8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593N.exe	85
PID 2216 wrote to memory of 2900	2216	8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593N.exe	85
PID 2900 wrote to memory of 3436	2900	winver.exe	56
PID 2900 wrote to memory of 2972	2900	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2972

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\8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593N.exe
  "C:\Users\Admin\AppData\Local\Temp\8875d5b7022c58bb812102956d937adfa5e5ede03d7f44704cd5f0430ad17593N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2216
- - 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:2900
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 352
      4⤵
      Program crash
      PID:3976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2900 -ip 2900
1⤵
PID:928

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/2216-3-0x0000000002280000-0x0000000002C80000-memory.dmp

Filesize
10.0MB

Download
memory/2216-9-0x0000000002280000-0x0000000002C80000-memory.dmp

Filesize
10.0MB

Download
memory/2216-8-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2216-0-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/2900-6-0x00007FFDA37B0000-0x00007FFDA39A5000-memory.dmp

Filesize
2.0MB

Download
memory/2900-4-0x00000000772D2000-0x00000000772D3000-memory.dmp

Filesize
4KB

Download
memory/2900-12-0x0000000000E60000-0x0000000000E66000-memory.dmp

Filesize
24KB

Download
memory/2900-15-0x0000000000E60000-0x0000000000E66000-memory.dmp

Filesize
24KB

Download
memory/2972-14-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/2972-17-0x00007FFDA39D0000-0x00007FFDA39D1000-memory.dmp

Filesize
4KB

Download
memory/3436-5-0x00007FFDA384D000-0x00007FFDA384E000-memory.dmp

Filesize
4KB

Download
memory/3436-7-0x00007FFDA39E0000-0x00007FFDA39E1000-memory.dmp

Filesize
4KB

Download
memory/3436-2-0x0000000001130000-0x0000000001136000-memory.dmp

Filesize
24KB

Download
memory/3436-1-0x0000000001130000-0x0000000001136000-memory.dmp

Filesize
24KB

Download
memory/3436-10-0x00007FFDA39C0000-0x00007FFDA39C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads