tinba | 6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2025 01:33

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General

Target

6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606.exe
Size

45KB
MD5

5a24d95100199ba0750872647bedfbe2
SHA1

951583c4252bf789343d7d01888157d74afc746f
SHA256

6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606
SHA512

ff7565c8d6bca724270710574b2c27b0a83a4a22d19461a1d6e5decf67835486b3d962d8ee9df9498f1df4e9f8649ead02a91e320bdff892894c228b3b66ed87
SSDEEP

768:6hP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2X:2sWE9N5dFu53dsniQaB/xZ14n7zIF+qD

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CB8C14D8 = "C:\\Users\\Admin\\AppData\\Roaming\\CB8C14D8\\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/3720-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1020	2364	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	6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2364	winver.exe
2364	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
2364	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 2364	3720	6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606.exe	84
PID 3720 wrote to memory of 2364	3720	6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606.exe	84
PID 3720 wrote to memory of 2364	3720	6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606.exe	84
PID 3720 wrote to memory of 2364	3720	6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606.exe	84
PID 2364 wrote to memory of 3388	2364	winver.exe	56
PID 2364 wrote to memory of 2564	2364	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2564

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3388
- C:\Users\Admin\AppData\Local\Temp\6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606.exe
  "C:\Users\Admin\AppData\Local\Temp\6936d0855a38dff44f56845ca002cedf19a9c069a4dc7327274350f0f6b11606.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3720
- - 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:2364
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 352
      4⤵
      Program crash
      PID:1020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2364 -ip 2364
1⤵
PID:2828

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/2364-5-0x00000000776A2000-0x00000000776A3000-memory.dmp

Filesize
4KB

Download
memory/2364-14-0x0000000001420000-0x0000000001426000-memory.dmp

Filesize
24KB

Download
memory/2364-11-0x0000000001420000-0x0000000001426000-memory.dmp

Filesize
24KB

Download
memory/2364-7-0x00007FFCDB510000-0x00007FFCDB705000-memory.dmp

Filesize
2.0MB

Download
memory/2564-13-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download
memory/3388-2-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/3388-6-0x00007FFCDB5AD000-0x00007FFCDB5AE000-memory.dmp

Filesize
4KB

Download
memory/3388-3-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/3720-4-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Filesize
10.0MB

Download
memory/3720-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3720-9-0x00000000021C0000-0x0000000002BC0000-memory.dmp

Filesize
10.0MB

Download
memory/3720-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3720-1-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download