tinba | 9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2

Analysis

max time kernel
146s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-09-2024 11:53

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General

Target

9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2.exe
Size

45KB
MD5

04037a3c5502f91f42fd80cd60a552f4
SHA1

22ab11a10d2e43c8b4ab20b1c3884fccc813ec5a
SHA256

9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2
SHA512

0b4b6369705372f95d02d6cb91f40802e1eba0252fba98f118a1bfa976263ce7539863589b8e07947b2b1c3fc0782d30ca9ce63d9a34e9f13b10838f6503572a
SSDEEP

768:GhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:KsWE9N5dFu53dsniQaB/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\DBDA7403 = "C:\\Users\\Admin\\AppData\\Roaming\\DBDA7403\\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/4552-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1760	4116	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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4116	winver.exe
4116	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3476	Explorer.EXE
Token: SeCreatePagefilePrivilege	3476	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4116	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 4116	4552	9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2.exe	83
PID 4552 wrote to memory of 4116	4552	9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2.exe	83
PID 4552 wrote to memory of 4116	4552	9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2.exe	83
PID 4552 wrote to memory of 4116	4552	9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2.exe	83
PID 4116 wrote to memory of 3476	4116	winver.exe	56
PID 4116 wrote to memory of 2540	4116	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2540

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3476
- C:\Users\Admin\AppData\Local\Temp\9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2.exe
  "C:\Users\Admin\AppData\Local\Temp\9cef71133a35c36b2f849e088862941a7f5edb8d4384577e495d4276482fefa2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4552
- - 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:4116
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 352
      4⤵
      Program crash
      PID:1760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4116 -ip 4116
1⤵
PID:1976

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/2540-14-0x0000000000F00000-0x0000000000F06000-memory.dmp

Filesize
24KB

Download
memory/3476-7-0x00007FFCEF9CD000-0x00007FFCEF9CE000-memory.dmp

Filesize
4KB

Download
memory/3476-3-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/3476-2-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4116-6-0x0000000077002000-0x0000000077003000-memory.dmp

Filesize
4KB

Download
memory/4116-5-0x0000000000B00000-0x0000000000B06000-memory.dmp

Filesize
24KB

Download
memory/4116-8-0x00007FFCEF930000-0x00007FFCEFB25000-memory.dmp

Filesize
2.0MB

Download
memory/4116-15-0x0000000000B00000-0x0000000000B06000-memory.dmp

Filesize
24KB

Download
memory/4552-4-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/4552-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4552-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4552-10-0x0000000002260000-0x0000000002C60000-memory.dmp

Filesize
10.0MB

Download
memory/4552-1-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download