tinba | 5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 17:41

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General

Target

5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a.exe
Size

45KB
MD5

0e77842b902feac5d0d2eb261e224342
SHA1

5d822b85812fc0d1dbf6b0c1c826da6eb9039698
SHA256

5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a
SHA512

a239bb28feb45f8dce562df2515b7a4dcb5402642094d7649770ebcaf8c8250a3757e1f38f086b2bf17c292ff62373d7fe90bfe4e017fd6e36bde86a8297a258
SSDEEP

768:AhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ21:8sWE9N5dFu53dsniQaB/xZ14n7zIF+qZ

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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4FEF2CD7 = "C:\\Users\\Admin\\AppData\\Roaming\\4FEF2CD7\\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/1464-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4720	4960	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	5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4960	winver.exe
4960	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4960	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 4960	1464	5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a.exe	84
PID 1464 wrote to memory of 4960	1464	5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a.exe	84
PID 1464 wrote to memory of 4960	1464	5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a.exe	84
PID 1464 wrote to memory of 4960	1464	5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a.exe	84
PID 4960 wrote to memory of 3436	4960	winver.exe	56
PID 4960 wrote to memory of 2968	4960	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2968

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a.exe
  "C:\Users\Admin\AppData\Local\Temp\5c40c8043cb1bcf843c6487b284bd2d7667b4e02df23807e77cdd246b59d849a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1464
- - 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:4960
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 352
      4⤵
      Program crash
      PID:4720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4960 -ip 4960
1⤵
PID:4880

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/1464-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1464-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/1464-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1464-4-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/1464-9-0x0000000002250000-0x0000000002C50000-memory.dmp

Filesize
10.0MB

Download
memory/2968-15-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2968-13-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3436-2-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/3436-6-0x00007FFCF390D000-0x00007FFCF390E000-memory.dmp

Filesize
4KB

Download
memory/3436-3-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/4960-7-0x00007FFCF3870000-0x00007FFCF3A65000-memory.dmp

Filesize
2.0MB

Download
memory/4960-5-0x00000000772F2000-0x00000000772F3000-memory.dmp

Filesize
4KB

Download
memory/4960-11-0x00000000010C0000-0x00000000010C6000-memory.dmp

Filesize
24KB

Download
memory/4960-14-0x00000000010C0000-0x00000000010C6000-memory.dmp

Filesize
24KB

Download