tinba | 13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398

Analysis

max time kernel
116s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-10-2024 15:10

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General

Target

13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398N.exe
Size

45KB
MD5

85648863347fef008ca21f49553ba950
SHA1

695a14b2598cc129ff98fcbf49c2339e54fa008d
SHA256

13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398
SHA512

3264c5d092b84be95e01de9e424a50433ecf6bc907addc6b6ea886388b81ddb48924e7555aac4bbda9960676825e8ea7c4d73d8f365edb43d9d7dfa54fc776bc
SSDEEP

768:dhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:fsWE9N5dFu53dsniQaB/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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D13E8F07 = "C:\\Users\\Admin\\AppData\\Roaming\\D13E8F07\\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/2716-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4228	1552	WerFault.exe	83

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	13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1552	winver.exe
1552	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1552	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 1552	2716	13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398N.exe	83
PID 2716 wrote to memory of 1552	2716	13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398N.exe	83
PID 2716 wrote to memory of 1552	2716	13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398N.exe	83
PID 2716 wrote to memory of 1552	2716	13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398N.exe	83
PID 1552 wrote to memory of 3408	1552	winver.exe	56
PID 1552 wrote to memory of 2844	1552	winver.exe	49

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2844

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3408
- C:\Users\Admin\AppData\Local\Temp\13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398N.exe
  "C:\Users\Admin\AppData\Local\Temp\13e95b8ef98c1a9b4655728a0188ffb4dc041e181508a2e265f3eed1ff548398N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2716
- - 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:1552
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 352
      4⤵
      Program crash
      PID:4228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1552 -ip 1552
1⤵
PID:1788

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/1552-5-0x0000000077682000-0x0000000077683000-memory.dmp

Filesize
4KB

Download
memory/1552-14-0x0000000001180000-0x0000000001186000-memory.dmp

Filesize
24KB

Download
memory/1552-11-0x0000000001180000-0x0000000001186000-memory.dmp

Filesize
24KB

Download
memory/1552-7-0x00007FFCE8710000-0x00007FFCE8905000-memory.dmp

Filesize
2.0MB

Download
memory/2716-9-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/2716-4-0x00000000021B0000-0x0000000002BB0000-memory.dmp

Filesize
10.0MB

Download
memory/2716-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2716-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2716-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2844-13-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/3408-6-0x00007FFCE87AD000-0x00007FFCE87AE000-memory.dmp

Filesize
4KB

Download
memory/3408-2-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download
memory/3408-3-0x0000000000880000-0x0000000000886000-memory.dmp

Filesize
24KB

Download