tinba | 656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443b

Analysis

max time kernel
111s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2024 20:21

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General

Target

656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443bN.exe
Size

34KB
MD5

d3877b5f9e9a8b8d956ddedbfe8ecac0
SHA1

292535a591db2cf37f9492f1ad3c437b7e077cbc
SHA256

656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443b
SHA512

37301a4bb9689cb5bdd66c046c335fdf14b71b1da980f09614d781aad9816f63faa61ccdcb19e4987e6f41dbe1cfe91abbbcd914ad7eb05ff52d1581eae1c696
SSDEEP

768:Zp22qWFcy5XQ7lO41uirwA98p3MpkNBxd0cJWV6dy/x9J2:ZpYoX58z1uirL98xMWnT0OQ9J2

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

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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\D4859E3C = "C:\\Users\\Admin\\AppData\\Roaming\\D4859E3C\\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/2532-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1432	2944	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	656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2944	winver.exe
2944	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2944	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2944	2532	656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443bN.exe	83
PID 2532 wrote to memory of 2944	2532	656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443bN.exe	83
PID 2532 wrote to memory of 2944	2532	656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443bN.exe	83
PID 2532 wrote to memory of 2944	2532	656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443bN.exe	83
PID 2944 wrote to memory of 3444	2944	winver.exe	56
PID 2944 wrote to memory of 2660	2944	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2660

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444
- C:\Users\Admin\AppData\Local\Temp\656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443bN.exe
  "C:\Users\Admin\AppData\Local\Temp\656b8f5a0b8d1b296b0eeaa1f81d4bca87a6b02501157a39732e7d2624fa443bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2532
- - 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:2944
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 352
      4⤵
      Program crash
      PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2944 -ip 2944
1⤵
PID:872

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/2532-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2532-1-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2532-9-0x0000000002230000-0x0000000002C30000-memory.dmp

Filesize
10.0MB

Download
memory/2532-4-0x0000000002230000-0x0000000002C30000-memory.dmp

Filesize
10.0MB

Download
memory/2532-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-13-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download
memory/2944-5-0x0000000077DD2000-0x0000000077DD3000-memory.dmp

Filesize
4KB

Download
memory/2944-7-0x00007FFAA1050000-0x00007FFAA1245000-memory.dmp

Filesize
2.0MB

Download
memory/2944-11-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/2944-14-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download
memory/3444-6-0x00007FFAA10ED000-0x00007FFAA10EE000-memory.dmp

Filesize
4KB

Download
memory/3444-2-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download
memory/3444-3-0x00000000012D0000-0x00000000012D6000-memory.dmp

Filesize
24KB

Download