tinba | 9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d

Analysis

max time kernel
108s
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
24-01-2025 11:27

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General

Target

9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d.exe
Size

45KB
MD5

d09cf78e10057b31598466b14362131e
SHA1

2bdc07c1f2f4c012c0dcd2ffb844a13b6a6361a4
SHA256

9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d
SHA512

efca8445235c2fbf3ec868e395bfcceea6e733312240930046a069d2b05d6a3b7401e1631632d610635a014aa3bc8cf43f821a99a8ad9265a975bafdc0aa81ac
SSDEEP

768:BhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2n:7sWE9N5dFu53dsniQaB/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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FA4D9EC3 = "C:\\Users\\Admin\\AppData\\Roaming\\FA4D9EC3\\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/1588-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3700	4800	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	9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4800	winver.exe
4800	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3492	Explorer.EXE
Token: SeCreatePagefilePrivilege	3492	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4800	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 4800	1588	9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d.exe	83
PID 1588 wrote to memory of 4800	1588	9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d.exe	83
PID 1588 wrote to memory of 4800	1588	9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d.exe	83
PID 1588 wrote to memory of 4800	1588	9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d.exe	83
PID 4800 wrote to memory of 3492	4800	winver.exe	56
PID 4800 wrote to memory of 2476	4800	winver.exe	43

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2476

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3492
- C:\Users\Admin\AppData\Local\Temp\9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d.exe
  "C:\Users\Admin\AppData\Local\Temp\9e31e8305f1076c5eafd2335bb157a5f3ed3914c3706f7d6a25b6c90bac46a7d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1588
- - 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:4800
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 352
      4⤵
      Program crash
      PID:3700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4800 -ip 4800
1⤵
PID:560

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/1588-9-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1588-1-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/1588-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1588-4-0x0000000002210000-0x0000000002C10000-memory.dmp

Filesize
10.0MB

Download
memory/1588-10-0x0000000002210000-0x0000000002C10000-memory.dmp

Filesize
10.0MB

Download
memory/2476-14-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download
memory/3492-2-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3492-7-0x00007FFA4682D000-0x00007FFA4682E000-memory.dmp

Filesize
4KB

Download
memory/3492-3-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/4800-5-0x0000000001100000-0x0000000001106000-memory.dmp

Filesize
24KB

Download
memory/4800-8-0x00007FFA46790000-0x00007FFA46985000-memory.dmp

Filesize
2.0MB

Download
memory/4800-6-0x0000000077AA2000-0x0000000077AA3000-memory.dmp

Filesize
4KB

Download
memory/4800-15-0x0000000001100000-0x0000000001106000-memory.dmp

Filesize
24KB

Download