tinba | 8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cded

Analysis

max time kernel
113s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 23:04

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General

Target

8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cdedN.exe
Size

168KB
MD5

be2c7de34231d1353e36bb6f4399f490
SHA1

3bcd8b1317df5cf61cf38f624a5bfe6b09e69b17
SHA256

8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cded
SHA512

fb90098ac0854b557cd12143ec731b4881efc51f149fbf01d8dc92a3bc658430350f3953de7e0075b71f639829ef29aeca3d8692ba6cdb867f095b617da46336
SSDEEP

3072:R+//K1KJAR6KtqDSB8NojBOryOIy4IwiyO+//K1KJR3l:GKkmVtqWB8NojgrvIy4RiypKkfl

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D9275DE3 = "C:\\Users\\Admin\\AppData\\Roaming\\D9275DE3\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4840	1864	WerFault.exe	82

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	8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cdedN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1864	winver.exe
1864	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3352	Explorer.EXE
Token: SeCreatePagefilePrivilege	3352	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1864	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 1864	4140	8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cdedN.exe	82
PID 4140 wrote to memory of 1864	4140	8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cdedN.exe	82
PID 4140 wrote to memory of 1864	4140	8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cdedN.exe	82
PID 4140 wrote to memory of 1864	4140	8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cdedN.exe	82
PID 1864 wrote to memory of 3352	1864	winver.exe	56
PID 1864 wrote to memory of 2804	1864	winver.exe	49

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2804

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3352
- C:\Users\Admin\AppData\Local\Temp\8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cdedN.exe
  "C:\Users\Admin\AppData\Local\Temp\8af00449fe6e1672d6d01418150e55021e36e01458ee5bd3ac4b867cf014cdedN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4140
- - 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:1864
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1864 -s 352
      4⤵
      Program crash
      PID:4840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1864 -ip 1864
1⤵
PID:1488

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/1864-4-0x0000000077EC2000-0x0000000077EC3000-memory.dmp

Filesize
4KB

Download
memory/1864-6-0x00007FF988270000-0x00007FF988465000-memory.dmp

Filesize
2.0MB

Download
memory/1864-10-0x0000000002370000-0x0000000002376000-memory.dmp

Filesize
24KB

Download
memory/1864-13-0x0000000002370000-0x0000000002376000-memory.dmp

Filesize
24KB

Download
memory/2804-12-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3352-2-0x0000000002990000-0x0000000002996000-memory.dmp

Filesize
24KB

Download
memory/3352-1-0x0000000002990000-0x0000000002996000-memory.dmp

Filesize
24KB

Download
memory/3352-5-0x00007FF98830D000-0x00007FF98830E000-memory.dmp

Filesize
4KB

Download
memory/4140-0-0x0000000000A50000-0x0000000000A52000-memory.dmp

Filesize
8KB

Download
memory/4140-3-0x00000000024F0000-0x0000000002EF0000-memory.dmp

Filesize
10.0MB

Download
memory/4140-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4140-8-0x00000000024F0000-0x0000000002EF0000-memory.dmp

Filesize
10.0MB

Download