tinba | 6ff96fc1b53575904fd74ac5823b6c4c43bee3e911487c39fd27a86f99e11879

Analysis

max time kernel
118s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 01:28

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General

Target
49ae0b1360be0e9d07e3ce7ab17c47f0N.exe
Size 45KB
Sample240726-bvx3hsxflm
SHA256 6ff96fc1b53575904fd74ac5823b6c4c43bee3e911487c39fd27a86f99e11879
MD5 49ae0b1360be0e9d07e3ce7ab17c47f0
SHA1 0f82e1399d20c81c8e5099db97b4a8190b7f2281
SHA512 a316b44044a93c1ef96c99343978433300fcb6f15c836759eb55c94929ac5e7aa5746f75b79c779ce1737b11f77f76220824f7f50c8b58a50814350f5696a263
SSDEEP 768:ohP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:UsWE9N5dFu53dsniQaB/xZ14n7zIF+qr
MD5 SHA1 SHA512 SSDEEP

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

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4744-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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-1-5-21-1403246978-718555486-3105247137-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3BB6831D = "C:\\Users\\Admin\\AppData\\Roaming\\3BB6831D\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4656	4236	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	49ae0b1360be0e9d07e3ce7ab17c47f0N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4236	winver.exe
4236	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3464	Explorer.EXE
Token: SeCreatePagefilePrivilege	3464	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4236	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 4236	4744	49ae0b1360be0e9d07e3ce7ab17c47f0N.exe	86
PID 4744 wrote to memory of 4236	4744	49ae0b1360be0e9d07e3ce7ab17c47f0N.exe	86
PID 4744 wrote to memory of 4236	4744	49ae0b1360be0e9d07e3ce7ab17c47f0N.exe	86
PID 4744 wrote to memory of 4236	4744	49ae0b1360be0e9d07e3ce7ab17c47f0N.exe	86
PID 4236 wrote to memory of 3464	4236	winver.exe	56
PID 4236 wrote to memory of 2980	4236	winver.exe	50

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:3464
- C:\Users\Admin\AppData\Local\Temp\49ae0b1360be0e9d07e3ce7ab17c47f0N.exe
  "C:\Users\Admin\AppData\Local\Temp\49ae0b1360be0e9d07e3ce7ab17c47f0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4744
- - 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:4236
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4236 -s 352
      4⤵
      Program crash
      PID:4656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4236 -ip 4236
1⤵
PID:2920

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/2980-15-0x0000000000780000-0x0000000000786000-memory.dmp

Download

memory/2980-18-0x00007FFC5F5D0000-0x00007FFC5F5D1000-memory.dmp

Download

memory/3464-9-0x00007FFC5F5E0000-0x00007FFC5F5E1000-memory.dmp

Download

memory/3464-2-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

Download

memory/3464-7-0x00007FFC5F44D000-0x00007FFC5F44E000-memory.dmp

Download

memory/3464-3-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

Download

memory/4236-6-0x0000000077762000-0x0000000077763000-memory.dmp

Download

memory/4236-5-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Download

memory/4236-8-0x00007FFC5F3B0000-0x00007FFC5F5A5000-memory.dmp

Download

memory/4236-16-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Download

memory/4744-4-0x00000000021D0000-0x0000000002BD0000-memory.dmp

Download

memory/4744-0-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/4744-11-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/4744-1-0x0000000002160000-0x0000000002161000-memory.dmp

Download