tinba | f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38d

Analysis

max time kernel
110s
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
26/09/2024, 00:33

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General

Target

f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38dN.exe
Size

45KB
MD5

495c72efb58548c41799765cfa58e730
SHA1

76e97116ddfc0063f62cc6ec9eca7836c14f0a2b
SHA256

f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38d
SHA512

7ff76f6f61442a6e914905be21ba95142cf14e6bdbc0d4807a98490a8e8dcb4554cd0567db019a2ba7bb265ff0677f0e785cc6b1b1571124c0426908e26ef17b
SSDEEP

768:uhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:isWE9N5dFu53dsniQaB/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

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0DCBC3BF = "C:\\Users\\Admin\\AppData\\Roaming\\0DCBC3BF\\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/3108-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2436	2932	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	f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2932	winver.exe
2932	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3500	Explorer.EXE
Token: SeCreatePagefilePrivilege	3500	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2932	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3108 wrote to memory of 2932	3108	f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38dN.exe	83
PID 3108 wrote to memory of 2932	3108	f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38dN.exe	83
PID 3108 wrote to memory of 2932	3108	f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38dN.exe	83
PID 3108 wrote to memory of 2932	3108	f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38dN.exe	83
PID 2932 wrote to memory of 3500	2932	winver.exe	56
PID 2932 wrote to memory of 3012	2932	winver.exe	51

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3012

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3500
- C:\Users\Admin\AppData\Local\Temp\f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38dN.exe
  "C:\Users\Admin\AppData\Local\Temp\f661d6379189ed191b1dbc8e272d90b8078c7ad37e03f775f8d81c9f08efd38dN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3108
- - 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:2932
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 352
      4⤵
      Program crash
      PID:2436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 2932 -ip 2932
1⤵
PID:4076

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/2932-5-0x0000000077592000-0x0000000077593000-memory.dmp

Filesize
4KB

Download
memory/2932-14-0x0000000002C20000-0x0000000002C26000-memory.dmp

Filesize
24KB

Download
memory/2932-11-0x0000000002C20000-0x0000000002C26000-memory.dmp

Filesize
24KB

Download
memory/2932-7-0x00007FFFBD0B0000-0x00007FFFBD2A5000-memory.dmp

Filesize
2.0MB

Download
memory/3012-13-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/3108-9-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/3108-4-0x0000000002360000-0x0000000002D60000-memory.dmp

Filesize
10.0MB

Download
memory/3108-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3108-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3108-1-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/3500-6-0x00007FFFBD14D000-0x00007FFFBD14E000-memory.dmp

Filesize
4KB

Download
memory/3500-2-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

Filesize
24KB

Download
memory/3500-3-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

Filesize
24KB

Download