tinba | 66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2

Analysis

max time kernel
94s
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
04-01-2025 16:48

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General

Target

66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2N.exe
Size

45KB
MD5

7191e4b45c968c428a3fc7014aec7f10
SHA1

0b0031bf174b686e57d16b4d6e98afee1169f0fb
SHA256

66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2
SHA512

5c88cdf9ba59baed1669d0d96450500e6c784cee0c4eaf03d880847efe53dbe3efc3237347aa1fab930aaef04d6e138c3eb8c2fd7ddb2ef8c08270885589db9d
SSDEEP

768:vhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:5sWE9N5dFu53dsniQaB/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
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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D800F59D = "C:\\Users\\Admin\\AppData\\Roaming\\D800F59D\\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/1676-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3692	5008	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	66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5008	winver.exe
5008	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3392	Explorer.EXE
Token: SeCreatePagefilePrivilege	3392	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5008	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 5008	1676	66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2N.exe	84
PID 1676 wrote to memory of 5008	1676	66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2N.exe	84
PID 1676 wrote to memory of 5008	1676	66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2N.exe	84
PID 1676 wrote to memory of 5008	1676	66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2N.exe	84
PID 5008 wrote to memory of 3392	5008	winver.exe	56
PID 5008 wrote to memory of 2932	5008	winver.exe	50

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2932

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3392
- C:\Users\Admin\AppData\Local\Temp\66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2N.exe
  "C:\Users\Admin\AppData\Local\Temp\66b84eb1e53cef6d922519816a7624823bd70657c07d96795b62150e84d3d7a2N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1676
- - 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:5008
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5008 -s 352
      4⤵
      Program crash
      PID:3692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5008 -ip 5008
1⤵
PID:4600

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/1676-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1676-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/1676-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1676-4-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/1676-9-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/2932-13-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3392-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3392-6-0x00007FFC99D4D000-0x00007FFC99D4E000-memory.dmp

Filesize
4KB

Download
memory/3392-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/5008-7-0x00007FFC99CB0000-0x00007FFC99EA5000-memory.dmp

Filesize
2.0MB

Download
memory/5008-5-0x0000000077322000-0x0000000077323000-memory.dmp

Filesize
4KB

Download
memory/5008-11-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download
memory/5008-14-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download