tinba | 61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bdd

Analysis

max time kernel
107s
max time network
98s
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, 01:20

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General

Target

61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bddN.exe
Size

45KB
MD5

e5ecdfd1cf47134abd32bb93174fd180
SHA1

501d796632167f0d7bc923e06a8077f676624a13
SHA256

61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bdd
SHA512

d3ff307eee345623c243a1b9892914fa4cb18eebc9a65793047f35f37454e687aeb0523ed8771f45f5420e0660e8843f54d9c65d9ebd144bdf4459479245f13c
SSDEEP

768:bhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:dsWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\71C625FC = "C:\\Users\\Admin\\AppData\\Roaming\\71C625FC\\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/732-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2380	4756	WerFault.exe	85

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	61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bddN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4756	winver.exe
4756	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4756	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 732 wrote to memory of 4756	732	61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bddN.exe	85
PID 732 wrote to memory of 4756	732	61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bddN.exe	85
PID 732 wrote to memory of 4756	732	61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bddN.exe	85
PID 732 wrote to memory of 4756	732	61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bddN.exe	85
PID 4756 wrote to memory of 3388	4756	winver.exe	56
PID 4756 wrote to memory of 2520	4756	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2520

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3388
- C:\Users\Admin\AppData\Local\Temp\61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bddN.exe
  "C:\Users\Admin\AppData\Local\Temp\61f7bdb0cf27034a231a8407b54425eb592532b9c826e6a5142412d371920bddN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:732
- - 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:4756
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 352
      4⤵
      Program crash
      PID:2380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4756 -ip 4756
1⤵
PID:4928

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/732-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/732-1-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/732-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/732-4-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/732-9-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/2520-13-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3388-3-0x00000000010D0000-0x00000000010D6000-memory.dmp

Filesize
24KB

Download
memory/3388-6-0x00007FF816E6D000-0x00007FF816E6E000-memory.dmp

Filesize
4KB

Download
memory/3388-2-0x00000000010D0000-0x00000000010D6000-memory.dmp

Filesize
24KB

Download
memory/4756-7-0x00007FF816DD0000-0x00007FF816FC5000-memory.dmp

Filesize
2.0MB

Download
memory/4756-5-0x00000000773D2000-0x00000000773D3000-memory.dmp

Filesize
4KB

Download
memory/4756-11-0x0000000001E40000-0x0000000001E46000-memory.dmp

Filesize
24KB

Download
memory/4756-14-0x0000000001E40000-0x0000000001E46000-memory.dmp

Filesize
24KB

Download