tinba | 8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98

Analysis

max time kernel
112s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 01:41

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General

Target

8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98N.exe
Size

110KB
MD5

33fc942d7f7f58099975642720b06060
SHA1

a5391964a0e9967faba9db89112816add41fa851
SHA256

8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98
SHA512

6286ab251b7c5e21805e65572b68a46429f315a1e0aa8d72478dc481844cab61f32d0eef73b7a64b127c6dc0d24d2bbd808371e532a4c7179a9a755eecc99a4f
SSDEEP

1536:SiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:SiyvRmDLs/ZrwWJjAqGcRJ2hg

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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FF23838D = "C:\\Users\\Admin\\AppData\\Roaming\\FF23838D\\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/1144-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4084	3732	WerFault.exe	85

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	winver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3732	winver.exe
3732	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3412	Explorer.EXE
Token: SeCreatePagefilePrivilege	3412	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3732	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 3732	1144	8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98N.exe	85
PID 1144 wrote to memory of 3732	1144	8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98N.exe	85
PID 1144 wrote to memory of 3732	1144	8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98N.exe	85
PID 1144 wrote to memory of 3732	1144	8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98N.exe	85
PID 3732 wrote to memory of 3412	3732	winver.exe	56
PID 3732 wrote to memory of 2672	3732	winver.exe	45

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2672

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3412
- C:\Users\Admin\AppData\Local\Temp\8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98N.exe
  "C:\Users\Admin\AppData\Local\Temp\8fa30299c73c685ff36b2c0aa44e3baa4fa019eb5884e7e11ae3080747c45e98N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1144
- - 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:3732
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3732 -s 352
      4⤵
      Program crash
      PID:4084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3732 -ip 3732
1⤵
PID:1896

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/1144-10-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/1144-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/1144-4-0x0000000002310000-0x0000000002D10000-memory.dmp

Filesize
10.0MB

Download
memory/1144-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1144-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2672-14-0x0000000000CD0000-0x0000000000CD6000-memory.dmp

Filesize
24KB

Download
memory/3412-3-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3412-2-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3412-6-0x00007FFE290ED000-0x00007FFE290EE000-memory.dmp

Filesize
4KB

Download
memory/3732-5-0x0000000077CD2000-0x0000000077CD3000-memory.dmp

Filesize
4KB

Download
memory/3732-7-0x00007FFE29050000-0x00007FFE29245000-memory.dmp

Filesize
2.0MB

Download
memory/3732-12-0x0000000002CC0000-0x0000000002CC6000-memory.dmp

Filesize
24KB

Download
memory/3732-15-0x0000000002CC0000-0x0000000002CC6000-memory.dmp

Filesize
24KB

Download