tinba | 816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb

Analysis

max time kernel
107s
max time network
96s
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 03:58

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General

Target

816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb.exe
Size

45KB
MD5

21d7ffd37e8e9f08cd8d0e2ed9a7a2e0
SHA1

a7874be390b1d4ead395ba4f3ea9ff05a81b9646
SHA256

816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb
SHA512

8b7be069c13fa747b3f28baad56162fff5959c19b4c685b9d000aed1bd0486fa4a88bf5c3132c80f9f5f97bfdbe630672606617a134e6b26215b73295a738d1b
SSDEEP

768:YhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2P:ksWE9N5dFu53dsniQaB/xZ14n7zIF+q7

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\C28F1B9F = "C:\\Users\\Admin\\AppData\\Roaming\\C28F1B9F\\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/2968-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2132	4872	WerFault.exe	84

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	816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4872	winver.exe
4872	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4872	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 4872	2968	816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb.exe	84
PID 2968 wrote to memory of 4872	2968	816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb.exe	84
PID 2968 wrote to memory of 4872	2968	816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb.exe	84
PID 2968 wrote to memory of 4872	2968	816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb.exe	84
PID 4872 wrote to memory of 3436	4872	winver.exe	56
PID 4872 wrote to memory of 2616	4872	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2616

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb.exe
  "C:\Users\Admin\AppData\Local\Temp\816aa99ffbe9780b4d0a29518d706b0c898d97a56f32779a90ce609a43cdc2bb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2968
- - 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:4872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 352
      4⤵
      Program crash
      PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4872 -ip 4872
1⤵
PID:716

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/2616-13-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2968-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2968-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2968-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2968-4-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/2968-9-0x0000000002240000-0x0000000002C40000-memory.dmp

Filesize
10.0MB

Download
memory/3436-2-0x0000000000800000-0x0000000000806000-memory.dmp

Filesize
24KB

Download
memory/3436-6-0x00007FFC9E28D000-0x00007FFC9E28E000-memory.dmp

Filesize
4KB

Download
memory/3436-3-0x0000000000800000-0x0000000000806000-memory.dmp

Filesize
24KB

Download
memory/4872-7-0x00007FFC9E1F0000-0x00007FFC9E3E5000-memory.dmp

Filesize
2.0MB

Download
memory/4872-5-0x0000000077062000-0x0000000077063000-memory.dmp

Filesize
4KB

Download
memory/4872-11-0x00000000014D0000-0x00000000014D6000-memory.dmp

Filesize
24KB

Download
memory/4872-14-0x00000000014D0000-0x00000000014D6000-memory.dmp

Filesize
24KB

Download