tinba | f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096

Analysis

max time kernel
107s
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
04-12-2024 03:51

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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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CEE0F45E = "C:\\Users\\Admin\\AppData\\Roaming\\CEE0F45E\\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/212-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2904	4556	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
4556	winver.exe
4556	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
4556	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 4556	212	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe	83
PID 212 wrote to memory of 4556	212	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe	83
PID 212 wrote to memory of 4556	212	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe	83
PID 212 wrote to memory of 4556	212	f759fd2d7484ec67652760f5b6c684eb9546a2ab53bb9e9c82ef5c1c58121096.exe	83
PID 4556 wrote to memory of 3520	4556	winver.exe	56
PID 4556 wrote to memory of 2528	4556	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2528

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3520
- 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:212
- - 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:4556
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 352
      4⤵
      Program crash
      PID:2904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4556 -ip 4556
1⤵
PID:3856

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/212-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/212-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/212-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/212-4-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/212-9-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/2528-13-0x0000000000E40000-0x0000000000E46000-memory.dmp

Filesize
24KB

Download
memory/3520-2-0x0000000001080000-0x0000000001086000-memory.dmp

Filesize
24KB

Download
memory/3520-6-0x00007FFB47EAD000-0x00007FFB47EAE000-memory.dmp

Filesize
4KB

Download
memory/3520-3-0x0000000001080000-0x0000000001086000-memory.dmp

Filesize
24KB

Download
memory/4556-7-0x00007FFB47E10000-0x00007FFB48005000-memory.dmp

Filesize
2.0MB

Download
memory/4556-5-0x0000000077282000-0x0000000077283000-memory.dmp

Filesize
4KB

Download
memory/4556-11-0x0000000002B30000-0x0000000002B36000-memory.dmp

Filesize
24KB

Download
memory/4556-14-0x0000000002B30000-0x0000000002B36000-memory.dmp

Filesize
24KB

Download