tinba | 49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14

Analysis

max time kernel
119s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 04:15

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General

Target
49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14N.exe
Size 45KB
Sample240925-evf1saxfqf
SHA256 49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14
MD5 822addd81633611e7435a11ae74b6850
SHA1 cdf1c066c28b957b2f91db8741d509be56358f9d
SHA512 ef0d4bebb299a375622feb4c0e5fd2a2d99a6ba6b25653f2025cc1b56eb3e2e7d490fa5ed6f6d45afaf3df006f6ed2ebc5a0b249931db8e3f2e6b499d805ccc3
SSDEEP 768:4hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:EsWE9N5dFu53dsniQaB/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

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B408BAB8 = "C:\\Users\\Admin\\AppData\\Roaming\\B408BAB8\\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/4296-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3512	452	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	49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
452	winver.exe
452	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
452	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 452	4296	49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14N.exe	83
PID 4296 wrote to memory of 452	4296	49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14N.exe	83
PID 4296 wrote to memory of 452	4296	49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14N.exe	83
PID 4296 wrote to memory of 452	4296	49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14N.exe	83
PID 452 wrote to memory of 3428	452	winver.exe	56
PID 452 wrote to memory of 2636	452	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2636

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3428
- C:\Users\Admin\AppData\Local\Temp\49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14N.exe
  "C:\Users\Admin\AppData\Local\Temp\49b95125c630577467706d3b5104b2c9652d0df4a3e73b1f890dc5534364eb14N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4296
- - 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:452
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 352
      4⤵
      Program crash
      PID:3512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 452 -ip 452
1⤵
PID:3644

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

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Downloads

memory/452-5-0x0000000077412000-0x0000000077413000-memory.dmp

Download

memory/452-14-0x0000000000430000-0x0000000000436000-memory.dmp

Download

memory/452-11-0x0000000000430000-0x0000000000436000-memory.dmp

Download

memory/452-7-0x00007FFF60990000-0x00007FFF60B85000-memory.dmp

Download

memory/2636-13-0x0000000000FB0000-0x0000000000FB6000-memory.dmp

Download

memory/3428-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Download

memory/3428-6-0x00007FFF60A2D000-0x00007FFF60A2E000-memory.dmp

Download

memory/3428-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

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memory/4296-4-0x00000000021F0000-0x0000000002BF0000-memory.dmp

Download

memory/4296-8-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/4296-9-0x00000000021F0000-0x0000000002BF0000-memory.dmp

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memory/4296-0-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/4296-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Download