tinba | 73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c

Analysis

max time kernel
146s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2025, 23:45

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General

Target

73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c.exe
Size

34KB
MD5

81872ea52de55eb351b7d52e953d7a5f
SHA1

60eabc0c75ee3b8a554e205ea8c7bd7a18ed77a8
SHA256

73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c
SHA512

e7c1e17a6a7f00718e38a6802ecf117d263a42fe97672c1ec87a8f7350620eb6a93c87106f459c311dad85540b7e5235962ca75dba671b77825e90dd10a7bee6
SSDEEP

768:tp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:tpYoX58z1uirL98xMWnT0OQ9J2

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\834C3FEF = "C:\\Users\\Admin\\AppData\\Roaming\\834C3FEF\\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/2808-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3004	3772	WerFault.exe	86

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	73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3772	winver.exe
3772	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3516	Explorer.EXE
Token: SeCreatePagefilePrivilege	3516	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3772	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 3772	2808	73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c.exe	86
PID 2808 wrote to memory of 3772	2808	73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c.exe	86
PID 2808 wrote to memory of 3772	2808	73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c.exe	86
PID 2808 wrote to memory of 3772	2808	73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c.exe	86
PID 3772 wrote to memory of 3516	3772	winver.exe	56
PID 3772 wrote to memory of 2396	3772	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2396

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3516
- C:\Users\Admin\AppData\Local\Temp\73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c.exe
  "C:\Users\Admin\AppData\Local\Temp\73deb6fc408b72da99cd831db55a06a92230c6f834e3cf31fd8854bd6b93d68c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2808
- - 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:3772
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3772 -s 352
      4⤵
      Program crash
      PID:3004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3772 -ip 3772
1⤵
PID:692

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/2396-13-0x0000000000B80000-0x0000000000B86000-memory.dmp

Filesize
24KB

Download
memory/2808-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2808-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2808-2-0x0000000002210000-0x0000000002C10000-memory.dmp

Filesize
10.0MB

Download
memory/2808-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2808-9-0x0000000002210000-0x0000000002C10000-memory.dmp

Filesize
10.0MB

Download
memory/3516-4-0x0000000002600000-0x0000000002606000-memory.dmp

Filesize
24KB

Download
memory/3516-6-0x00007FFB8630D000-0x00007FFB8630E000-memory.dmp

Filesize
4KB

Download
memory/3516-3-0x0000000002600000-0x0000000002606000-memory.dmp

Filesize
24KB

Download
memory/3772-7-0x00007FFB86270000-0x00007FFB86465000-memory.dmp

Filesize
2.0MB

Download
memory/3772-5-0x0000000077282000-0x0000000077283000-memory.dmp

Filesize
4KB

Download
memory/3772-11-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3772-14-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download