tinba | 89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6

Analysis

max time kernel
105s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 03:44

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General

Target
89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6N.exe
Size 106KB
Sample240919-eav9zazbql
SHA256 89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6
MD5 bbf8ddf6f17557dd4759d7a0d0a85320
SHA1 ce8f438fc986a7a3e1bbc6150a027a1b9005109a
SHA512 e67dfcf76ff65e8556b1b291a34fd31ec9ddf86de82a46032034426750d8ef7071f0f9c870347abe3cf87b142d546a91b21cee766d65e5db6a9cfe7489143a51
SSDEEP 768:y+6p+OMlgGXCWhfDzU7f0JDgi9I57+sByZ+XsfXpwtG9ipelU9JA:y+mFM2QXtZgi9Iksu+XM57ipeq9JA
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

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FE13D25A = "C:\\Users\\Admin\\AppData\\Roaming\\FE13D25A\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2116	4084	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	89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4084	winver.exe
4084	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3424	Explorer.EXE
Token: SeCreatePagefilePrivilege	3424	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4084	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3456 wrote to memory of 4084	3456	89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6N.exe	83
PID 3456 wrote to memory of 4084	3456	89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6N.exe	83
PID 3456 wrote to memory of 4084	3456	89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6N.exe	83
PID 3456 wrote to memory of 4084	3456	89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6N.exe	83
PID 4084 wrote to memory of 3424	4084	winver.exe	56
PID 4084 wrote to memory of 2940	4084	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2940

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3424
- C:\Users\Admin\AppData\Local\Temp\89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6N.exe
  "C:\Users\Admin\AppData\Local\Temp\89bd52f639a316cd73d56f444c0663e7b3829b9fc70b083eb3aa7d761a00e2b6N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3456
- - 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:4084
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4084 -s 352
      4⤵
      Program crash
      PID:2116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4084 -ip 4084
1⤵
PID:4356

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/2940-13-0x0000000000530000-0x0000000000536000-memory.dmp

Download

memory/3424-6-0x00007FF8FB06D000-0x00007FF8FB06E000-memory.dmp

Download

memory/3424-2-0x0000000000400000-0x0000000000406000-memory.dmp

Download

memory/3424-3-0x0000000000400000-0x0000000000406000-memory.dmp

Download

memory/3456-4-0x0000000002330000-0x0000000002D30000-memory.dmp

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memory/3456-0-0x0000000000400000-0x000000000041C000-memory.dmp

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memory/3456-8-0x0000000000400000-0x000000000041C000-memory.dmp

Download

memory/3456-9-0x0000000002330000-0x0000000002D30000-memory.dmp

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memory/3456-1-0x0000000000580000-0x0000000000581000-memory.dmp

Download

memory/4084-5-0x0000000077872000-0x0000000077873000-memory.dmp

Download

memory/4084-7-0x00007FF8FAFD0000-0x00007FF8FB1C5000-memory.dmp

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memory/4084-11-0x0000000000980000-0x0000000000986000-memory.dmp

Download

memory/4084-14-0x0000000000980000-0x0000000000986000-memory.dmp

Download