tinba | 3b01742f0cef4ceac72788cf4023be4dee735619898b5d407cd91c8eddc4e625

Analysis

max time kernel
118s
max time network
111s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 05:00

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General

Target
d72ef93b3140a70c670259d6caf438c0N.exe
Size 98KB
Sample240817-fm95bs1fpm
SHA256 3b01742f0cef4ceac72788cf4023be4dee735619898b5d407cd91c8eddc4e625
MD5 d72ef93b3140a70c670259d6caf438c0
SHA1 d351f41b9be06d995bc537ed240bdb352e8f2858
SHA512 5cbe2c698c52c13b19f50f0823a09a589165daa7d9d444e09a5c5667f477eefd93901c530d443e766078345df50c75a31c8c8bc59ece3d9133eaee2c9b5bd29c
SSDEEP 768:5+6p+OMlgGMCWhfDzU7f7JDgi9I57+sByZ+XsfXpwtG9ipelU9JF:5+mFM2HXKZgi9Iksu+XM57ipeq9JF
MD5 SHA1 SHA512 SSDEEP

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

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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2229021F = "C:\\Users\\Admin\\AppData\\Roaming\\2229021F\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2540	3228	WerFault.exe	85

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	d72ef93b3140a70c670259d6caf438c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3228	winver.exe
3228	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3412	Explorer.EXE
Token: SeCreatePagefilePrivilege	3412	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3228	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3412	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 3228	2436	d72ef93b3140a70c670259d6caf438c0N.exe	85
PID 2436 wrote to memory of 3228	2436	d72ef93b3140a70c670259d6caf438c0N.exe	85
PID 2436 wrote to memory of 3228	2436	d72ef93b3140a70c670259d6caf438c0N.exe	85
PID 2436 wrote to memory of 3228	2436	d72ef93b3140a70c670259d6caf438c0N.exe	85
PID 3228 wrote to memory of 3412	3228	winver.exe	56
PID 3228 wrote to memory of 2980	3228	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2980

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3412
- C:\Users\Admin\AppData\Local\Temp\d72ef93b3140a70c670259d6caf438c0N.exe
  "C:\Users\Admin\AppData\Local\Temp\d72ef93b3140a70c670259d6caf438c0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2436
- - 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:3228
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3228 -s 356
      4⤵
      Program crash
      PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3228 -ip 3228
1⤵
PID:876

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/2436-9-0x0000000002250000-0x0000000002C50000-memory.dmp

Download

memory/2436-3-0x0000000002250000-0x0000000002C50000-memory.dmp

Download

memory/2436-8-0x0000000000400000-0x000000000041A000-memory.dmp

Download

memory/2436-0-0x0000000000570000-0x0000000000571000-memory.dmp

Download

memory/2980-13-0x0000000000120000-0x0000000000126000-memory.dmp

Download

memory/2980-16-0x00007FFBA6410000-0x00007FFBA6411000-memory.dmp

Download

memory/2980-15-0x0000000000120000-0x0000000000126000-memory.dmp

Download

memory/3228-4-0x0000000077BE2000-0x0000000077BE3000-memory.dmp

Download

memory/3228-11-0x0000000001360000-0x0000000001366000-memory.dmp

Download

memory/3228-6-0x00007FFBA61F0000-0x00007FFBA63E5000-memory.dmp

Download

memory/3228-14-0x0000000001360000-0x0000000001366000-memory.dmp

Download

memory/3412-5-0x00007FFBA628D000-0x00007FFBA628E000-memory.dmp

Download

memory/3412-7-0x00007FFBA6420000-0x00007FFBA6421000-memory.dmp

Download

memory/3412-2-0x0000000000680000-0x0000000000686000-memory.dmp

Download

memory/3412-1-0x0000000000680000-0x0000000000686000-memory.dmp

Download