tinba | 022eb0d5e7bd72980bc6892fb50b52dd8951d94dc7293fa0b6e076e67d9ac979

Analysis

max time kernel
116s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31/08/2024, 15:12

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General

Target

4f48ec139ace7a77c0609d48197c6a30N.exe
Size

45KB
MD5

4f48ec139ace7a77c0609d48197c6a30
SHA1

eb08a2ed307fa0c792065457a2aad72ff1ee9eab
SHA256

022eb0d5e7bd72980bc6892fb50b52dd8951d94dc7293fa0b6e076e67d9ac979
SHA512

7243df92c51bd101f8601bab1a5064bcf69d6a6b6f3fa2e2653f94bf2d1e7d8857d09946530fc56a6997bea913b578a08ee3069036541f1abb8b0d3e18978eed
SSDEEP

768:lhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:3sWE9N5dFu53dsniQaB/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/2116-0-0x0000000000400000-0x000000000041D000-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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\26E4D295 = "C:\\Users\\Admin\\AppData\\Roaming\\26E4D295\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3432	2776	WerFault.exe	88

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	4f48ec139ace7a77c0609d48197c6a30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2776	winver.exe
2776	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
2776	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 2116 wrote to memory of 2776	2116	4f48ec139ace7a77c0609d48197c6a30N.exe	88
PID 2116 wrote to memory of 2776	2116	4f48ec139ace7a77c0609d48197c6a30N.exe	88
PID 2116 wrote to memory of 2776	2116	4f48ec139ace7a77c0609d48197c6a30N.exe	88
PID 2116 wrote to memory of 2776	2116	4f48ec139ace7a77c0609d48197c6a30N.exe	88
PID 2776 wrote to memory of 3444	2776	winver.exe	56
PID 2776 wrote to memory of 2992	2776	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2992

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\4f48ec139ace7a77c0609d48197c6a30N.exe
  "C:\Users\Admin\AppData\Local\Temp\4f48ec139ace7a77c0609d48197c6a30N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2116
- - 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:2776
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2776 -s 352
      4⤵
      Program crash
      PID:3432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2776 -ip 2776
1⤵
PID:4060

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/2116-4-0x00000000023C0000-0x0000000002DC0000-memory.dmp

Filesize
10.0MB

Download
memory/2116-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/2116-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2116-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2776-5-0x0000000077272000-0x0000000077273000-memory.dmp

Filesize
4KB

Download
memory/2776-7-0x00007FFBF4F70000-0x00007FFBF5165000-memory.dmp

Filesize
2.0MB

Download
memory/2776-11-0x0000000001420000-0x0000000001426000-memory.dmp

Filesize
24KB

Download
memory/2776-14-0x0000000001420000-0x0000000001426000-memory.dmp

Filesize
24KB

Download
memory/2992-13-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

Filesize
24KB

Download
memory/2992-16-0x00007FFBF5190000-0x00007FFBF5191000-memory.dmp

Filesize
4KB

Download
memory/3444-6-0x00007FFBF500D000-0x00007FFBF500E000-memory.dmp

Filesize
4KB

Download
memory/3444-3-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3444-8-0x00007FFBF51A0000-0x00007FFBF51A1000-memory.dmp

Filesize
4KB

Download
memory/3444-2-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download