tinba | c9bc57dd415dc8354bd543a40cbb5949e1e66f434c287d2fb09a79bd13955f7d

General

Target

dfef0ae5742587850de5c9e963223110N.exe
Size

45KB
MD5

dfef0ae5742587850de5c9e963223110
SHA1

0a32c1abf7cc4a179aa0a1defdfe5176555aba97
SHA256

c9bc57dd415dc8354bd543a40cbb5949e1e66f434c287d2fb09a79bd13955f7d
SHA512

bc200d5c5085b4760b950424a128c43b1f9d70a2a67a834bdda68aed7362f0574b18298e1ca9813417ec7bd70be23cb448ba89a037729fecca3ff3799e19bd9d
SSDEEP

768:ZhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:DsWE9N5dFu53dsniQaB/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/2672-0-0x0000000000400000-0x000000000041D000-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\3209C49F = "C:\\Users\\Admin\\AppData\\Roaming\\3209C49F\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2552	2380	WerFault.exe	84

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	dfef0ae5742587850de5c9e963223110N.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
2380	winver.exe
2380	winver.exe

Suspicious use of AdjustPrivilegeToken 18 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE
Token: SeShutdownPrivilege	3400	Explorer.EXE
Token: SeCreatePagefilePrivilege	3400	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2380	winver.exe
3400	Explorer.EXE
3400	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3400	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2380	2672	dfef0ae5742587850de5c9e963223110N.exe	84
PID 2672 wrote to memory of 2380	2672	dfef0ae5742587850de5c9e963223110N.exe	84
PID 2672 wrote to memory of 2380	2672	dfef0ae5742587850de5c9e963223110N.exe	84
PID 2672 wrote to memory of 2380	2672	dfef0ae5742587850de5c9e963223110N.exe	84
PID 2380 wrote to memory of 3400	2380	winver.exe	56
PID 2380 wrote to memory of 2648	2380	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2648

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:3400
- C:\Users\Admin\AppData\Local\Temp\dfef0ae5742587850de5c9e963223110N.exe
  "C:\Users\Admin\AppData\Local\Temp\dfef0ae5742587850de5c9e963223110N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2672
- - 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:2380
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 352
      4⤵
      Program crash
      PID:2552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2380 -ip 2380
1⤵
PID:3892

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/2380-17-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download
memory/2380-5-0x00000000775E2000-0x00000000775E3000-memory.dmp

Filesize
4KB

Download
memory/2380-7-0x00007FF85B650000-0x00007FF85B845000-memory.dmp

Filesize
2.0MB

Download
memory/2380-14-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download
memory/2648-16-0x0000000000F40000-0x0000000000F46000-memory.dmp

Filesize
24KB

Download
memory/2672-11-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/2672-1-0x0000000002150000-0x0000000002151000-memory.dmp

Filesize
4KB

Download
memory/2672-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2672-4-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/2672-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3400-3-0x0000000001420000-0x0000000001426000-memory.dmp

Filesize
24KB

Download
memory/3400-12-0x00007FF85B860000-0x00007FF85B861000-memory.dmp

Filesize
4KB

Download
memory/3400-8-0x00007FF85B880000-0x00007FF85B881000-memory.dmp

Filesize
4KB

Download
memory/3400-6-0x00007FF85B6ED000-0x00007FF85B6EE000-memory.dmp

Filesize
4KB

Download
memory/3400-2-0x0000000001420000-0x0000000001426000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads