tinba | d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b

Analysis

max time kernel
102s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22/11/2024, 07:53

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General

Target
d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b.exe
Size 64KB
Sample241122-jq2txasqbm
SHA256 d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b
MD5 b58497dea9ab8f91ec9c1c82ff8d1bcf
SHA1 dd48add5a7b8144fd8cd7b30b9288be03e52d4c3
SHA512 8ce4de167ff5736c130ba7ef5f6dc464c8db2f913d4455abac0a5e6428cba7357601cf095664d0d931ecbb5fde67404854a873a1c9d72fc807ebb4e7cd4f28c3
SSDEEP 768:w3apPwO6xN5rD8T8X22eEmm6WulSv0yOPh7DuL6uNM6JiqrmehiVurmaBI3VVWI:vPel68XSEmjl/yYrfqjhzrmKIFAI
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tinba banker discovery persistence trojan

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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2D26500A = "C:\\Users\\Admin\\AppData\\Roaming\\2D26500A\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3736	3764	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	d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3764	winver.exe
3764	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3764	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 3764	2904	d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b.exe	83
PID 2904 wrote to memory of 3764	2904	d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b.exe	83
PID 2904 wrote to memory of 3764	2904	d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b.exe	83
PID 2904 wrote to memory of 3764	2904	d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b.exe	83
PID 3764 wrote to memory of 3388	3764	winver.exe	56
PID 3764 wrote to memory of 2488	3764	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2488

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3388
- C:\Users\Admin\AppData\Local\Temp\d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b.exe
  "C:\Users\Admin\AppData\Local\Temp\d49746c2ed1ef5fa43ac220bfa9ba0340312f2832af2a4b2a06a2964d9a4089b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2904
- - 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:3764
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3764 -s 352
      4⤵
      Program crash
      PID:3736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3764 -ip 3764
1⤵
PID:416

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

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Downloads

memory/2488-14-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

Download

memory/2904-0-0x0000000000400000-0x0000000000420000-memory.dmp

Download

memory/2904-1-0x0000000000417000-0x0000000000418000-memory.dmp

Download

memory/2904-2-0x0000000000400000-0x0000000000420000-memory.dmp

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memory/3388-9-0x00007FFC2252D000-0x00007FFC2252E000-memory.dmp

Download

memory/3388-8-0x0000000001000000-0x0000000001006000-memory.dmp

Download

memory/3388-7-0x00007FFC2252D000-0x00007FFC2252E000-memory.dmp

Download

memory/3388-6-0x0000000001000000-0x0000000001006000-memory.dmp

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memory/3764-5-0x0000000077DB2000-0x0000000077DB3000-memory.dmp

Download

memory/3764-3-0x0000000000E60000-0x0000000000E66000-memory.dmp

Download

memory/3764-12-0x0000000000E60000-0x0000000000E66000-memory.dmp

Download

memory/3764-15-0x0000000000E60000-0x0000000000E66000-memory.dmp

Download