tinba | ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437

Analysis

max time kernel
108s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2024 11:48

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General

Target

ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437N.exe
Size

45KB
MD5

89a32eca653171c56c33a5a085bcbc70
SHA1

04c44842d6585f8e488f55e2c3b8af305f0be808
SHA256

ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437
SHA512

da05fed8837374288b154c03c4d78e9123f34323ccd168838d766e00281050853aa358b4b2b561927fc72c4f11beb27285e87c71de406d30da4cc1c01e03fe57
SSDEEP

768:ohP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:UsWE9N5dFu53dsniQaB/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
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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D1E0B83D = "C:\\Users\\Admin\\AppData\\Roaming\\D1E0B83D\\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/2176-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1780	4760	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	ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4760	winver.exe
4760	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3380	Explorer.EXE
Token: SeCreatePagefilePrivilege	3380	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4760	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 4760	2176	ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437N.exe	84
PID 2176 wrote to memory of 4760	2176	ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437N.exe	84
PID 2176 wrote to memory of 4760	2176	ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437N.exe	84
PID 2176 wrote to memory of 4760	2176	ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437N.exe	84
PID 4760 wrote to memory of 3380	4760	winver.exe	56
PID 4760 wrote to memory of 2652	4760	winver.exe	46

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3380
- C:\Users\Admin\AppData\Local\Temp\ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437N.exe
  "C:\Users\Admin\AppData\Local\Temp\ef331d0b67c485a53c4df69f663beff427f0db1a80d8d8541ba8c2603c1da437N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2176
- - 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:4760
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 352
      4⤵
      Program crash
      PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4760 -ip 4760
1⤵
PID:3856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2176-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2176-1-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2176-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2176-4-0x0000000002340000-0x0000000002D40000-memory.dmp

Filesize
10.0MB

Download
memory/2176-9-0x0000000002340000-0x0000000002D40000-memory.dmp

Filesize
10.0MB

Download
memory/2652-13-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/3380-2-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/3380-6-0x00007FFE8BCCD000-0x00007FFE8BCCE000-memory.dmp

Filesize
4KB

Download
memory/3380-3-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/4760-7-0x00007FFE8BC30000-0x00007FFE8BE25000-memory.dmp

Filesize
2.0MB

Download
memory/4760-5-0x0000000077A22000-0x0000000077A23000-memory.dmp

Filesize
4KB

Download
memory/4760-11-0x0000000000EE0000-0x0000000000EE6000-memory.dmp

Filesize
24KB

Download
memory/4760-14-0x0000000000EE0000-0x0000000000EE6000-memory.dmp

Filesize
24KB

Download