tinba | 53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afe

Analysis

max time kernel
111s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 05:31

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General

Target

53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe
Size

45KB
MD5

b78b23e121c59b6547e441d0fe8199d0
SHA1

6ad56b7c430ed184b8ae9d2c7e93ff0c1c69c48a
SHA256

53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afe
SHA512

ed4b5626bd35eeb30f759e2b6c583b5325601336dbdc9bb0cfe33b14c98f787444064ea59a8d738852fe04278082793dac2c9126c89201c9765f8757ac445e21
SSDEEP

768:ohP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2/:UsWE9N5dFu53dsniQaB/xZ14n7zIF+qL

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\281921C7 = "C:\\Users\\Admin\\AppData\\Roaming\\281921C7\\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/2396-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2816	2192	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	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2192	winver.exe
2192	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3524	Explorer.EXE
Token: SeCreatePagefilePrivilege	3524	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2192	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2192	2396	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	83
PID 2396 wrote to memory of 2192	2396	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	83
PID 2396 wrote to memory of 2192	2396	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	83
PID 2396 wrote to memory of 2192	2396	53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe	83
PID 2192 wrote to memory of 3524	2192	winver.exe	56
PID 2192 wrote to memory of 2424	2192	winver.exe	42

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2424

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3524
- C:\Users\Admin\AppData\Local\Temp\53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe
  "C:\Users\Admin\AppData\Local\Temp\53897af4e2ace67941971c55fff848fd39c792c2a7008b757d0d0897f3229afeN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2396
- - 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:2192
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2192 -s 356
      4⤵
      Program crash
      PID:2816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2192 -ip 2192
1⤵
PID:1532

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/2192-5-0x00000000777A2000-0x00000000777A3000-memory.dmp

Filesize
4KB

Download
memory/2192-15-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2192-12-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2192-7-0x00007FFF84470000-0x00007FFF84665000-memory.dmp

Filesize
2.0MB

Download
memory/2396-10-0x00000000021A0000-0x0000000002BA0000-memory.dmp

Filesize
10.0MB

Download
memory/2396-4-0x00000000021A0000-0x0000000002BA0000-memory.dmp

Filesize
10.0MB

Download
memory/2396-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2396-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2396-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2424-14-0x0000000000C50000-0x0000000000C56000-memory.dmp

Filesize
24KB

Download
memory/3524-6-0x00007FFF8450D000-0x00007FFF8450E000-memory.dmp

Filesize
4KB

Download
memory/3524-3-0x0000000000F50000-0x0000000000F56000-memory.dmp

Filesize
24KB

Download
memory/3524-2-0x0000000000F50000-0x0000000000F56000-memory.dmp

Filesize
24KB

Download