tinba | fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c

Analysis

max time kernel
105s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2024, 09:45

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General

Target
fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c.exe
Size 45KB
Sample241206-lrj2laxkhq
SHA256 fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c
MD5 5f382a72007a57a8a7bd8295b38fc35f
SHA1 029cbb0206174cd67fffb4705b7437478b9e550e
SHA512 e8df5117076f63d810d952341f3bb4171e92afab22cf70645ddd962cca4abcace0b34a8cefb64c6f7185680d5ea78484330b7e5f81fac4d1ac12cc30e5644686
SSDEEP 768:YhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2V:ksWE9N5dFu53dsniQaB/xZ14n7zIF+q5
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
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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\E58E2F61 = "C:\\Users\\Admin\\AppData\\Roaming\\E58E2F61\\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/1352-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2664	2232	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2232	winver.exe
2232	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3508	Explorer.EXE
Token: SeCreatePagefilePrivilege	3508	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2232	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1352 wrote to memory of 2232	1352	fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c.exe	84
PID 1352 wrote to memory of 2232	1352	fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c.exe	84
PID 1352 wrote to memory of 2232	1352	fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c.exe	84
PID 1352 wrote to memory of 2232	1352	fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c.exe	84
PID 2232 wrote to memory of 3508	2232	winver.exe	56
PID 2232 wrote to memory of 2608	2232	winver.exe	44

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2608

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3508
- C:\Users\Admin\AppData\Local\Temp\fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c.exe
  "C:\Users\Admin\AppData\Local\Temp\fea834d3d1cdf59bd4ac9d91477f0ebac35f3a74e45e694d1bf9585ac425e73c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1352
- - 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:2232
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 352
      4⤵
      Program crash
      PID:2664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2232 -ip 2232
1⤵
PID:3896

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/1352-9-0x00000000022B0000-0x0000000002CB0000-memory.dmp

Download

memory/1352-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Download

memory/1352-4-0x00000000022B0000-0x0000000002CB0000-memory.dmp

Download

memory/1352-8-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/1352-0-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/2232-5-0x0000000077542000-0x0000000077543000-memory.dmp

Download

memory/2232-7-0x00007FFED21F0000-0x00007FFED23E5000-memory.dmp

Download

memory/2232-11-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

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memory/2232-14-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

Download

memory/2608-13-0x00000000002E0000-0x00000000002E6000-memory.dmp

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memory/3508-2-0x0000000001200000-0x0000000001206000-memory.dmp

Download

memory/3508-3-0x0000000001200000-0x0000000001206000-memory.dmp

Download

memory/3508-6-0x00007FFED228D000-0x00007FFED228E000-memory.dmp

Download