tinba | 3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e

Analysis

max time kernel
146s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 16:40

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General

Target

3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe
Size

160KB
MD5

ff9b9dec68136843b09bab8dfa81ecda
SHA1

3ae1761a09bd856a499cf35ca735251e8e8c09d8
SHA256

3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e
SHA512

3f04c3bf7e0d953fc2595b225f8021e8bb15a8bbf9575ecb7687d2435035b3c54c66a461378ecfe9c0d37894842a53a37ef6a102353b7515cf0ac2b87ad34119
SSDEEP

1536:5EY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xphM:yY+4MiIkLZJNAQ9J6vu

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
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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A055E00F = "C:\\Users\\Admin\\AppData\\Roaming\\A055E00F\\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/4992-0-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4484	2952	WerFault.exe	86

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	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2952	winver.exe
2952	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2952	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 2952	4992	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	86
PID 4992 wrote to memory of 2952	4992	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	86
PID 4992 wrote to memory of 2952	4992	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	86
PID 4992 wrote to memory of 2952	4992	3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe	86
PID 2952 wrote to memory of 3516	2952	winver.exe	56
PID 2952 wrote to memory of 2396	2952	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2396

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3516
- C:\Users\Admin\AppData\Local\Temp\3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe
  "C:\Users\Admin\AppData\Local\Temp\3bc4a2e78fd858a4be1849bd080a596d15ae2768423044f6112c12e9ea3da99e.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4992
- - 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:2952
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 352
      4⤵
      Program crash
      PID:4484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2952 -ip 2952
1⤵
PID:2488

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/2396-13-0x0000000000B80000-0x0000000000B86000-memory.dmp

Filesize
24KB

Download
memory/2952-5-0x0000000077282000-0x0000000077283000-memory.dmp

Filesize
4KB

Download
memory/2952-14-0x0000000002DC0000-0x0000000002DC6000-memory.dmp

Filesize
24KB

Download
memory/2952-11-0x0000000002DC0000-0x0000000002DC6000-memory.dmp

Filesize
24KB

Download
memory/2952-7-0x00007FFB86270000-0x00007FFB86465000-memory.dmp

Filesize
2.0MB

Download
memory/3516-2-0x00000000007A0000-0x00000000007A6000-memory.dmp

Filesize
24KB

Download
memory/3516-6-0x00007FFB8630D000-0x00007FFB8630E000-memory.dmp

Filesize
4KB

Download
memory/3516-3-0x00000000007A0000-0x00000000007A6000-memory.dmp

Filesize
24KB

Download
memory/4992-4-0x0000000002380000-0x0000000002D80000-memory.dmp

Filesize
10.0MB

Download
memory/4992-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4992-9-0x0000000002380000-0x0000000002D80000-memory.dmp

Filesize
10.0MB

Download
memory/4992-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4992-1-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download