tinba | f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 04:01

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General

Target

f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe
Size

110KB
MD5

c989c63924b1b00b68e1cb3b7669383d
SHA1

81a7e83b38e3f1db2f2bf05bf88cf3243a65da71
SHA256

f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096
SHA512

0023eadb71a671e890c7bd889a34be6cece52cbaac03c1f6a9ed87dafc2a3ab6cc7df8ec47c4e0a7a3a42c3a54779b794ba88ebbcba717337ed040fe9313235d
SSDEEP

1536:8iLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:8iyvRmDLs/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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\68CE8C66 = "C:\\Users\\Admin\\AppData\\Roaming\\68CE8C66\\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/3232-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3848	3672	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	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3672	winver.exe
3672	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3588	Explorer.EXE
Token: SeCreatePagefilePrivilege	3588	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3672	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3232 wrote to memory of 3672	3232	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe	83
PID 3232 wrote to memory of 3672	3232	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe	83
PID 3232 wrote to memory of 3672	3232	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe	83
PID 3232 wrote to memory of 3672	3232	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe	83
PID 3672 wrote to memory of 3588	3672	winver.exe	56
PID 3672 wrote to memory of 2488	3672	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2488

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3588
- C:\Users\Admin\AppData\Local\Temp\f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe
  "C:\Users\Admin\AppData\Local\Temp\f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3232
- - 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:3672
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 352
      4⤵
      Program crash
      PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3672 -ip 3672
1⤵
PID:8

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/2488-14-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3232-4-0x00000000023D0000-0x0000000002DD0000-memory.dmp

Filesize
10.0MB

Download
memory/3232-1-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/3232-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3232-10-0x00000000023D0000-0x0000000002DD0000-memory.dmp

Filesize
10.0MB

Download
memory/3232-9-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3588-3-0x00000000008D0000-0x00000000008D6000-memory.dmp

Filesize
24KB

Download
memory/3588-7-0x00007FF87556C000-0x00007FF87556D000-memory.dmp

Filesize
4KB

Download
memory/3588-6-0x00007FF87556D000-0x00007FF87556E000-memory.dmp

Filesize
4KB

Download
memory/3588-2-0x00000000008D0000-0x00000000008D6000-memory.dmp

Filesize
24KB

Download
memory/3672-5-0x00000000777C2000-0x00000000777C3000-memory.dmp

Filesize
4KB

Download
memory/3672-8-0x00007FF8754D0000-0x00007FF8756C5000-memory.dmp

Filesize
2.0MB

Download
memory/3672-12-0x0000000002570000-0x0000000002576000-memory.dmp

Filesize
24KB

Download
memory/3672-15-0x0000000002570000-0x0000000002576000-memory.dmp

Filesize
24KB

Download