tinba | a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3

Analysis

max time kernel
148s
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
24-12-2024 00:15

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe
Size

45KB
MD5

d2fc6054377f883757bd4d878512cd88
SHA1

4bd301c33cf0bca1bf4f0a9fdca1e38c03a8c1aa
SHA256

a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3
SHA512

1ba550e138efdfe50e916859463e7856bff5be6da520129b1e7e80ddd94b0727c08f5fe6b0e802ff06379816d2e2b51c95873020d9234d7b683f4bc00ced5f62
SSDEEP

768:EhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:osWE9N5dFu53dsniQaB/xZ14n7zIF+qr

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FF8DA27D = "C:\\Users\\Admin\\AppData\\Roaming\\FF8DA27D\\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/2312-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3500	2500	WerFault.exe	84

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	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2500	winver.exe
2500	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3512	Explorer.EXE
Token: SeCreatePagefilePrivilege	3512	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2500	winver.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2500	2312	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe	84
PID 2312 wrote to memory of 2500	2312	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe	84
PID 2312 wrote to memory of 2500	2312	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe	84
PID 2312 wrote to memory of 2500	2312	a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe	84
PID 2500 wrote to memory of 3512	2500	winver.exe	56
PID 2500 wrote to memory of 2460	2500	winver.exe	42

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2460

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3512
- C:\Users\Admin\AppData\Local\Temp\a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe
  "C:\Users\Admin\AppData\Local\Temp\a5e61ac5b0cf2551e4fc720d79e4f34a3a92cfdf52ab8ed46835c7bbea16a1c3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2312
- - 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:2500
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2500 -s 352
      4⤵
      Program crash
      PID:3500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2500 -ip 2500
1⤵
PID:2516

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

Loading Replay Monitor...

Downloads

memory/2312-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2312-1-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/2312-9-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/2312-4-0x00000000021E0000-0x0000000002BE0000-memory.dmp

Filesize
10.0MB

Download
memory/2312-8-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2460-13-0x00000000009C0000-0x00000000009C6000-memory.dmp

Filesize
24KB

Download
memory/2500-5-0x0000000076F62000-0x0000000076F63000-memory.dmp

Filesize
4KB

Download
memory/2500-7-0x00007FFE76830000-0x00007FFE76A25000-memory.dmp

Filesize
2.0MB

Download
memory/2500-11-0x0000000000A80000-0x0000000000A86000-memory.dmp

Filesize
24KB

Download
memory/2500-14-0x0000000000A80000-0x0000000000A86000-memory.dmp

Filesize
24KB

Download
memory/3512-6-0x00007FFE768CD000-0x00007FFE768CE000-memory.dmp

Filesize
4KB

Download
memory/3512-2-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/3512-3-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download