tinba | a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-12-2024 19:54

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General

Target

a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe
Size

110KB
MD5

e4abbcfc17d35a6fc284f9cfa2d23911
SHA1

dd38080f6ae9326dd343d17f2e447ed29b08f07b
SHA256

a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745
SHA512

0dfc9781fe7d62ff22c2558d70ad091beb2061e4a009330d8c9711fdef636690c30de0f895bebc1cc023014036e96c485e6f93ebc1a2cc2fef1e4bc37945e81b
SSDEEP

1536:eiLOvRmmQegJfBbmAQ256/ZrwWnwqjhurmKFcxL8JQ2r0Eg:eiyvRmDLs/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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B180FD29 = "C:\\Users\\Admin\\AppData\\Roaming\\B180FD29\\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/2904-0-0x0000000000400000-0x000000000041E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1112	3804	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	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3804	winver.exe
3804	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
3804	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 3804	2904	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	85
PID 2904 wrote to memory of 3804	2904	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	85
PID 2904 wrote to memory of 3804	2904	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	85
PID 2904 wrote to memory of 3804	2904	a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe	85
PID 3804 wrote to memory of 3392	3804	winver.exe	56
PID 3804 wrote to memory of 2648	3804	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2648

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3392
- C:\Users\Admin\AppData\Local\Temp\a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe
  "C:\Users\Admin\AppData\Local\Temp\a5d5541d92334c120813214b823c6f8111aab7ceb384147e07b5ca4fcea87745.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2904
- - 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:3804
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3804 -s 352
      4⤵
      Program crash
      PID:1112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3804 -ip 3804
1⤵
PID:4644

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/2648-13-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/2904-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-1-0x0000000002160000-0x0000000002161000-memory.dmp

Filesize
4KB

Download
memory/2904-0-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2904-4-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/2904-9-0x0000000002290000-0x0000000002C90000-memory.dmp

Filesize
10.0MB

Download
memory/3392-2-0x0000000001360000-0x0000000001366000-memory.dmp

Filesize
24KB

Download
memory/3392-6-0x00007FFE76B6D000-0x00007FFE76B6E000-memory.dmp

Filesize
4KB

Download
memory/3392-3-0x0000000001360000-0x0000000001366000-memory.dmp

Filesize
24KB

Download
memory/3804-7-0x00007FFE76AD0000-0x00007FFE76CC5000-memory.dmp

Filesize
2.0MB

Download
memory/3804-5-0x0000000077D32000-0x0000000077D33000-memory.dmp

Filesize
4KB

Download
memory/3804-11-0x0000000000D70000-0x0000000000D76000-memory.dmp

Filesize
24KB

Download
memory/3804-14-0x0000000000D70000-0x0000000000D76000-memory.dmp

Filesize
24KB

Download