tinba | a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715a

Analysis

max time kernel
111s
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
24/09/2024, 22:15

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General

Target
a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe
Size 45KB
Sample240924-16cy6aycpr
SHA256 a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715a
MD5 4fb46585641257f17fd53dafc3f14ec0
SHA1 2dd93b296d672b1692bc44af0bdaa661c7e597e3
SHA512 796a6d867b8ac57b85815cc509e27c64271f8dddc6e5d366afc3a7da7c752f6dbcb369909d32ca510faa48bbdd2154230c5c9e4f0229420992595c2bf7d9c0b3
SSDEEP 768:IhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:0sWE9N5dFu53dsniQaB/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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3DCAD708 = "C:\\Users\\Admin\\AppData\\Roaming\\3DCAD708\\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/4856-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2204	2736	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	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2736	winver.exe
2736	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3548	Explorer.EXE
Token: SeCreatePagefilePrivilege	3548	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2736	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 2736	4856	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	83
PID 4856 wrote to memory of 2736	4856	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	83
PID 4856 wrote to memory of 2736	4856	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	83
PID 4856 wrote to memory of 2736	4856	a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe	83
PID 2736 wrote to memory of 3548	2736	winver.exe	56
PID 2736 wrote to memory of 2500	2736	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2500

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3548
- C:\Users\Admin\AppData\Local\Temp\a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe
  "C:\Users\Admin\AppData\Local\Temp\a7e19d6fcb9ffe9ea0e40ebca36d1777fc6a6bb522be5f90b7fd7b9502a6715aN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4856
- - 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:2736
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 352
      4⤵
      Program crash
      PID:2204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2736 -ip 2736
1⤵
PID:3272

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/2500-13-0x0000000000540000-0x0000000000546000-memory.dmp

Download

memory/2736-5-0x0000000077812000-0x0000000077813000-memory.dmp

Download

memory/2736-14-0x00000000022F0000-0x00000000022F6000-memory.dmp

Download

memory/2736-11-0x00000000022F0000-0x00000000022F6000-memory.dmp

Download

memory/2736-7-0x00007FF9E9F70000-0x00007FF9EA165000-memory.dmp

Download

memory/3548-2-0x0000000002700000-0x0000000002706000-memory.dmp

Download

memory/3548-6-0x00007FF9EA00D000-0x00007FF9EA00E000-memory.dmp

Download

memory/3548-3-0x0000000002700000-0x0000000002706000-memory.dmp

Download

memory/4856-4-0x0000000002210000-0x0000000002C10000-memory.dmp

Download

memory/4856-8-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/4856-9-0x0000000002210000-0x0000000002C10000-memory.dmp

Download

memory/4856-0-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/4856-1-0x0000000000670000-0x0000000000671000-memory.dmp

Download