tinba | 5dd374389770bf494bb24eb7ebcf6566eeebf4bc70178f2cf64176752b1ab503

Analysis

max time kernel
118s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2024, 18:26

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General

Target

95a90f809ac5ffe339d96af679ad6e70N.exe
Size

45KB
MD5

95a90f809ac5ffe339d96af679ad6e70
SHA1

fedf9d3a0da22bb0a3ec0fb07a6db785d874889a
SHA256

5dd374389770bf494bb24eb7ebcf6566eeebf4bc70178f2cf64176752b1ab503
SHA512

f5930b9a0be47e74ddcf23c5666861e04f411f71d5fceb1513ea54088b7efa8bc3a78ffc944e0f5db35a175f9e0153e73d27d0d8753ada20b83902333344bd65
SSDEEP

768:IhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:0sWE9N5dFu53dsniQaB/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/3936-0-0x0000000000400000-0x000000000041D000-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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C27A7B1A = "C:\\Users\\Admin\\AppData\\Roaming\\C27A7B1A\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5100	4968	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	95a90f809ac5ffe339d96af679ad6e70N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4968	winver.exe
4968	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4968	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3444	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3936 wrote to memory of 4968	3936	95a90f809ac5ffe339d96af679ad6e70N.exe	84
PID 3936 wrote to memory of 4968	3936	95a90f809ac5ffe339d96af679ad6e70N.exe	84
PID 3936 wrote to memory of 4968	3936	95a90f809ac5ffe339d96af679ad6e70N.exe	84
PID 3936 wrote to memory of 4968	3936	95a90f809ac5ffe339d96af679ad6e70N.exe	84
PID 4968 wrote to memory of 3444	4968	winver.exe	55
PID 4968 wrote to memory of 2508	4968	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2508

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3444
- C:\Users\Admin\AppData\Local\Temp\95a90f809ac5ffe339d96af679ad6e70N.exe
  "C:\Users\Admin\AppData\Local\Temp\95a90f809ac5ffe339d96af679ad6e70N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3936
- - 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:4968
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4968 -s 352
      4⤵
      Program crash
      PID:5100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4968 -ip 4968
1⤵
PID:1376

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/2508-15-0x00000000000E0000-0x00000000000E6000-memory.dmp

Filesize
24KB

Download
memory/3444-6-0x00007FFF60ECD000-0x00007FFF60ECE000-memory.dmp

Filesize
4KB

Download
memory/3444-2-0x0000000000C80000-0x0000000000C86000-memory.dmp

Filesize
24KB

Download
memory/3444-3-0x0000000000C80000-0x0000000000C86000-memory.dmp

Filesize
24KB

Download
memory/3444-8-0x00007FFF61060000-0x00007FFF61061000-memory.dmp

Filesize
4KB

Download
memory/3936-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3936-4-0x0000000002230000-0x0000000002C30000-memory.dmp

Filesize
10.0MB

Download
memory/3936-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3936-11-0x0000000002230000-0x0000000002C30000-memory.dmp

Filesize
10.0MB

Download
memory/3936-1-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/4968-5-0x0000000077B02000-0x0000000077B03000-memory.dmp

Filesize
4KB

Download
memory/4968-7-0x00007FFF60E30000-0x00007FFF61025000-memory.dmp

Filesize
2.0MB

Download
memory/4968-13-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4968-16-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download