tinba | 3b71dc96dbd52982196cf583c134431319a2df02631e8e1d34cf745f8c3eccc3

Analysis

max time kernel
146s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 09:29

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General

Target

JaffaCakes118_4fd31284d1e11187774a23d5556cfcc1.exe
Size

88KB
MD5

4fd31284d1e11187774a23d5556cfcc1
SHA1

e8f42df3af6fffe07b2152830e7d6ddb8ab88394
SHA256

3b71dc96dbd52982196cf583c134431319a2df02631e8e1d34cf745f8c3eccc3
SHA512

76e4a8b263c1e9ac0c523e15958342dc4942572d7beacf20639dae0d92ff05608f9ef5bfa7c719eea50ae6b7f1b131fef6006e17a834cb6396e8ad5f67d2e206
SSDEEP

1536:H5nfmIpxDWbUfd3aOPmxxEhvgCooXqRQqjh+rmKVsN:H5fvp12UFKcD/6jwqWsN

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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\238278A4 = "C:\\Users\\Admin\\AppData\\Roaming\\238278A4\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3432	4576	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	JaffaCakes118_4fd31284d1e11187774a23d5556cfcc1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4576	winver.exe
4576	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4576	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 4576	2164	JaffaCakes118_4fd31284d1e11187774a23d5556cfcc1.exe	83
PID 2164 wrote to memory of 4576	2164	JaffaCakes118_4fd31284d1e11187774a23d5556cfcc1.exe	83
PID 2164 wrote to memory of 4576	2164	JaffaCakes118_4fd31284d1e11187774a23d5556cfcc1.exe	83
PID 2164 wrote to memory of 4576	2164	JaffaCakes118_4fd31284d1e11187774a23d5556cfcc1.exe	83
PID 4576 wrote to memory of 3424	4576	winver.exe	56
PID 4576 wrote to memory of 3028	4576	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3028

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3424
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fd31284d1e11187774a23d5556cfcc1.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4fd31284d1e11187774a23d5556cfcc1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2164
- - 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:4576
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 352
      4⤵
      Program crash
      PID:3432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4576 -ip 4576
1⤵
PID:3588

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/2164-0-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/2164-3-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/2164-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2164-8-0x00000000022A0000-0x0000000002CA0000-memory.dmp

Filesize
10.0MB

Download
memory/3028-12-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download
memory/3424-2-0x0000000000ED0000-0x0000000000ED6000-memory.dmp

Filesize
24KB

Download
memory/3424-1-0x0000000000ED0000-0x0000000000ED6000-memory.dmp

Filesize
24KB

Download
memory/3424-5-0x00007FFD6590D000-0x00007FFD6590E000-memory.dmp

Filesize
4KB

Download
memory/4576-4-0x0000000076F92000-0x0000000076F93000-memory.dmp

Filesize
4KB

Download
memory/4576-6-0x00007FFD65870000-0x00007FFD65A65000-memory.dmp

Filesize
2.0MB

Download
memory/4576-10-0x0000000001140000-0x0000000001146000-memory.dmp

Filesize
24KB

Download
memory/4576-13-0x0000000001140000-0x0000000001146000-memory.dmp

Filesize
24KB

Download