tinba | 3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8

Analysis

max time kernel
106s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-01-2025 09:38

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General

Target

3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8N.exe
Size

110KB
MD5

24819ecf1a84e8c9a99af2ec7d6fc330
SHA1

2389d842bf7ede7ce8c691374d7e43e6b6a3a6c0
SHA256

3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8
SHA512

e0734d8e249d429fc2670090c6dab3f02d772ca7b7af0e78ae98cd27b8dff5bf1fca9b76a1e439d821cbb751e044cc3e589819be4aef0d01cd49afd4231791cf
SSDEEP

1536:8iLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Ew:8iyvRmDLs/ZrwWJjAqGcRJ2hw

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\811D45A4 = "C:\\Users\\Admin\\AppData\\Roaming\\811D45A4\\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/3808-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4084	3952	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	3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3952	winver.exe
3952	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3952	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3808 wrote to memory of 3952	3808	3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8N.exe	83
PID 3808 wrote to memory of 3952	3808	3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8N.exe	83
PID 3808 wrote to memory of 3952	3808	3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8N.exe	83
PID 3808 wrote to memory of 3952	3808	3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8N.exe	83
PID 3952 wrote to memory of 3432	3952	winver.exe	56
PID 3952 wrote to memory of 2636	3952	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2636

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3432
- C:\Users\Admin\AppData\Local\Temp\3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8N.exe
  "C:\Users\Admin\AppData\Local\Temp\3d3d43d2e8b99df402beb921ac7ac1ae2c463b3409528834b88a4908caefdff8N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3808
- - 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:3952
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3952 -s 356
      4⤵
      Program crash
      PID:4084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 3952 -ip 3952
1⤵
PID:2272

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/2636-14-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

Filesize
24KB

Download
memory/3432-7-0x00007FFD9DC2D000-0x00007FFD9DC2E000-memory.dmp

Filesize
4KB

Download
memory/3432-2-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3432-3-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3808-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3808-4-0x0000000002160000-0x0000000002B60000-memory.dmp

Filesize
10.0MB

Download
memory/3808-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3808-10-0x0000000002160000-0x0000000002B60000-memory.dmp

Filesize
10.0MB

Download
memory/3808-1-0x0000000000670000-0x0000000000671000-memory.dmp

Filesize
4KB

Download
memory/3952-6-0x0000000077172000-0x0000000077173000-memory.dmp

Filesize
4KB

Download
memory/3952-5-0x0000000000DF0000-0x0000000000DF6000-memory.dmp

Filesize
24KB

Download
memory/3952-8-0x00007FFD9DB90000-0x00007FFD9DD85000-memory.dmp

Filesize
2.0MB

Download
memory/3952-15-0x0000000000DF0000-0x0000000000DF6000-memory.dmp

Filesize
24KB

Download