tinba | ebd0417983358fe99d405ec03e53aabd803a73f3e3fbd67e58ae20f732f8e5c9

Analysis

max time kernel
118s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 03:41

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General

Target
69061775f1f50a59a99acbbde0771f30N.exe
Size 45KB
Sample240726-d8xd9axejf
SHA256 ebd0417983358fe99d405ec03e53aabd803a73f3e3fbd67e58ae20f732f8e5c9
MD5 69061775f1f50a59a99acbbde0771f30
SHA1 126b6a75c16128edf192b810a7df55606c7f2e89
SHA512 5d91adab6a6e35706f9ceb65403f0a4cd6148784218e8bfa3405bdb5c18a92f53eb9cb64493b26d953336268c1e836dbc99487ec42ec246d22e7491402795c81
SSDEEP 768:IhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:0sWE9N5dFu53dsniQaB/xZ14n7zIF+qr
MD5 SHA1 SHA512 SSDEEP

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/3632-0-0x0000000000400000-0x000000000041D000-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-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9C63B8F9 = "C:\\Users\\Admin\\AppData\\Roaming\\9C63B8F9\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1960	3524	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	69061775f1f50a59a99acbbde0771f30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3524	winver.exe
3524	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3464	Explorer.EXE
Token: SeCreatePagefilePrivilege	3464	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3524	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3632 wrote to memory of 3524	3632	69061775f1f50a59a99acbbde0771f30N.exe	85
PID 3632 wrote to memory of 3524	3632	69061775f1f50a59a99acbbde0771f30N.exe	85
PID 3632 wrote to memory of 3524	3632	69061775f1f50a59a99acbbde0771f30N.exe	85
PID 3632 wrote to memory of 3524	3632	69061775f1f50a59a99acbbde0771f30N.exe	85
PID 3524 wrote to memory of 3464	3524	winver.exe	56
PID 3524 wrote to memory of 2672	3524	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2672

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3464
- C:\Users\Admin\AppData\Local\Temp\69061775f1f50a59a99acbbde0771f30N.exe
  "C:\Users\Admin\AppData\Local\Temp\69061775f1f50a59a99acbbde0771f30N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3632
- - 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:3524
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 352
      4⤵
      Program crash
      PID:1960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3524 -ip 3524
1⤵
PID:3148

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

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Downloads

memory/2672-14-0x0000000000AB0000-0x0000000000AB6000-memory.dmp

Download

memory/2672-17-0x00007FFFC1D30000-0x00007FFFC1D31000-memory.dmp

Download

memory/3464-6-0x00007FFFC1BAD000-0x00007FFFC1BAE000-memory.dmp

Download

memory/3464-2-0x0000000002A30000-0x0000000002A36000-memory.dmp

Download

memory/3464-10-0x00007FFFC1D40000-0x00007FFFC1D41000-memory.dmp

Download

memory/3464-3-0x0000000002A30000-0x0000000002A36000-memory.dmp

Download

memory/3524-5-0x0000000077D42000-0x0000000077D43000-memory.dmp

Download

memory/3524-7-0x00007FFFC1B10000-0x00007FFFC1D05000-memory.dmp

Download

memory/3524-12-0x0000000001230000-0x0000000001236000-memory.dmp

Download

memory/3524-15-0x0000000001230000-0x0000000001236000-memory.dmp

Download

memory/3632-4-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Download

memory/3632-0-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/3632-8-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/3632-9-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Download

memory/3632-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Download