tinba | 8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38

Analysis

max time kernel
118s
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
22-12-2024 11:37

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General

Target

8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38N.exe
Size

45KB
MD5

5b6b5ac9a1245c22dbdb5b50b9f1a3e0
SHA1

e9167f3bd51b639ec4307bfe20cdb28eeda3365e
SHA256

8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38
SHA512

2f6b1e74dae1be8546ca98cd94b57cf36bb565a5dfb5d4377a78a7b6c9b2733334afdc0336d6715a207441147f186d085459b6ff02e15f1929ef2fefa7103ea5
SSDEEP

768:hhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:bsWE9N5dFu53dsniQaB/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
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\F2167545 = "C:\\Users\\Admin\\AppData\\Roaming\\F2167545\\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/4420-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5064	2920	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	8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2920	winver.exe
2920	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2920	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 2920	4420	8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38N.exe	84
PID 4420 wrote to memory of 2920	4420	8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38N.exe	84
PID 4420 wrote to memory of 2920	4420	8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38N.exe	84
PID 4420 wrote to memory of 2920	4420	8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38N.exe	84
PID 2920 wrote to memory of 3420	2920	winver.exe	56
PID 2920 wrote to memory of 2700	2920	winver.exe	45

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2700

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3420
- C:\Users\Admin\AppData\Local\Temp\8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38N.exe
  "C:\Users\Admin\AppData\Local\Temp\8c065ce4d6d3a93eb8d2521efbb6259620d3c9c9de84d99b7eb05c6291487d38N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4420
- - 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:2920
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 356
      4⤵
      Program crash
      PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2920 -ip 2920
1⤵
PID:60

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/2700-13-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2920-5-0x0000000077442000-0x0000000077443000-memory.dmp

Filesize
4KB

Download
memory/2920-14-0x0000000002BA0000-0x0000000002BA6000-memory.dmp

Filesize
24KB

Download
memory/2920-11-0x0000000002BA0000-0x0000000002BA6000-memory.dmp

Filesize
24KB

Download
memory/2920-7-0x00007FFA8FC10000-0x00007FFA8FE05000-memory.dmp

Filesize
2.0MB

Download
memory/3420-2-0x00000000008D0000-0x00000000008D6000-memory.dmp

Filesize
24KB

Download
memory/3420-6-0x00007FFA8FCAD000-0x00007FFA8FCAE000-memory.dmp

Filesize
4KB

Download
memory/3420-3-0x00000000008D0000-0x00000000008D6000-memory.dmp

Filesize
24KB

Download
memory/4420-4-0x0000000002390000-0x0000000002D90000-memory.dmp

Filesize
10.0MB

Download
memory/4420-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4420-9-0x0000000002390000-0x0000000002D90000-memory.dmp

Filesize
10.0MB

Download
memory/4420-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4420-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download