tinba | 5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742

Analysis

max time kernel
146s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28/09/2024, 02:44

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General

Target
5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742N.exe
Size 34KB
Sample240928-c8mdlsvhkf
SHA256 5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742
MD5 7555eb773944d72c1532f152f184fe60
SHA1 e2a1abeb460f099561062fc4acfa0121d1d3c0f7
SHA512 0899c410eea3e327bd9a255a6f554480e3c52c776bc8c7c6b7163b6c3ac6ff5d013952453e29338f978637d49eeeb2e52fb511ff0307bf5f3ed45f68dfaffa6c
SSDEEP 768:+p22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:+pYoX58z1uirL98xMWnT0OQ9J2
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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3C0A648A = "C:\\Users\\Admin\\AppData\\Roaming\\3C0A648A\\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/2364-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4660	3200	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	5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3200	winver.exe
3200	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3480	Explorer.EXE
Token: SeCreatePagefilePrivilege	3480	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3200	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 3200	2364	5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742N.exe	83
PID 2364 wrote to memory of 3200	2364	5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742N.exe	83
PID 2364 wrote to memory of 3200	2364	5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742N.exe	83
PID 2364 wrote to memory of 3200	2364	5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742N.exe	83
PID 3200 wrote to memory of 3480	3200	winver.exe	56
PID 3200 wrote to memory of 2644	3200	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2644

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3480
- C:\Users\Admin\AppData\Local\Temp\5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742N.exe
  "C:\Users\Admin\AppData\Local\Temp\5a0d0b546c1e8e59b629d86cef710402cc7778c4982a7d3d0d3a7a8aff835742N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2364
- - 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:3200
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3200 -s 352
      4⤵
      Program crash
      PID:4660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3200 -ip 3200
1⤵
PID:1120

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/2364-9-0x0000000002200000-0x0000000002C00000-memory.dmp

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memory/2364-1-0x0000000002020000-0x0000000002021000-memory.dmp

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memory/2364-4-0x0000000002200000-0x0000000002C00000-memory.dmp

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memory/2364-8-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2364-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2644-13-0x0000000000430000-0x0000000000436000-memory.dmp

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memory/3200-5-0x0000000077892000-0x0000000077893000-memory.dmp

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memory/3200-7-0x00007FF82EC30000-0x00007FF82EE25000-memory.dmp

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memory/3200-11-0x00000000008A0000-0x00000000008A6000-memory.dmp

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memory/3200-14-0x00000000008A0000-0x00000000008A6000-memory.dmp

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memory/3480-2-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

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memory/3480-3-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

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memory/3480-6-0x00007FF82ECCD000-0x00007FF82ECCE000-memory.dmp

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