tinba | 243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175

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
04-01-2025 17:17

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General

Target

243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175N.exe
Size

52KB
MD5

65b375effbe917594d8c6f8c7a128e10
SHA1

6b5c050a723564d1a76015a5e112b0ea7cc42cdf
SHA256

243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175
SHA512

86d427a54d549cb2b4f2bfb3f759da64f787ac3dd5e20aae26cd003b89ef30e8da3f62305e4a4899f9ec24a833740006668a596fbb5bba173b41751843f1ae35
SSDEEP

768:gvC6RMtZNZUXeb4fXDR2JVDDISp8m7DM3pIg4LqTTUUnGg7O1/l9Jq/:AmZNZUXeQXFhS6sM3prUSGg7O1d9Ja

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
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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7EFDCD92 = "C:\\Users\\Admin\\AppData\\Roaming\\7EFDCD92\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4644	4136	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	243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4136	winver.exe
4136	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3520	Explorer.EXE
Token: SeCreatePagefilePrivilege	3520	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4136	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 4136	4176	243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175N.exe	84
PID 4176 wrote to memory of 4136	4176	243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175N.exe	84
PID 4176 wrote to memory of 4136	4176	243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175N.exe	84
PID 4176 wrote to memory of 4136	4176	243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175N.exe	84
PID 4136 wrote to memory of 3520	4136	winver.exe	56
PID 4136 wrote to memory of 2712	4136	winver.exe	45

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2712

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3520
- C:\Users\Admin\AppData\Local\Temp\243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175N.exe
  "C:\Users\Admin\AppData\Local\Temp\243c8ca8c3cc50b28c45432c6609762dc71e4a3458959f01b0f5d2f2b7636175N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4176
- - 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:4136
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4136 -s 352
      4⤵
      Program crash
      PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4136 -ip 4136
1⤵
PID:2944

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/2712-13-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

Filesize
24KB

Download
memory/3520-2-0x0000000000F20000-0x0000000000F26000-memory.dmp

Filesize
24KB

Download
memory/3520-1-0x0000000000F20000-0x0000000000F26000-memory.dmp

Filesize
24KB

Download
memory/3520-6-0x00007FFACA32C000-0x00007FFACA32D000-memory.dmp

Filesize
4KB

Download
memory/3520-5-0x00007FFACA32D000-0x00007FFACA32E000-memory.dmp

Filesize
4KB

Download
memory/4136-11-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download
memory/4136-14-0x0000000002960000-0x0000000002966000-memory.dmp

Filesize
24KB

Download
memory/4136-4-0x00000000772D2000-0x00000000772D3000-memory.dmp

Filesize
4KB

Download
memory/4136-7-0x00007FFACA290000-0x00007FFACA485000-memory.dmp

Filesize
2.0MB

Download
memory/4176-3-0x00000000023F0000-0x0000000002DF0000-memory.dmp

Filesize
10.0MB

Download
memory/4176-9-0x00000000023F0000-0x0000000002DF0000-memory.dmp

Filesize
10.0MB

Download
memory/4176-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4176-0-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download