tinba | a3a9d63a1a45329d1252d551ad2107744e126c54e781807b0c99e2ed72faa300

Analysis

max time kernel
119s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2024, 04:37

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General

Target
56438fc662854664e7286a4c8769fa30N.exe
Size 45KB
Sample240802-e8xkpawenm
SHA256 a3a9d63a1a45329d1252d551ad2107744e126c54e781807b0c99e2ed72faa300
MD5 56438fc662854664e7286a4c8769fa30
SHA1 28c075738a0f3f574e3c3fb12a284c529c6dd570
SHA512 70215fa19f1b45024b14b18e3353a885dc236a963794895c33b6ecde37fec4e6260c7672c27df610b2ebea617833c222e38c4603b858d76692d55c5892e71da4
SSDEEP 768:AhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:8sWE9N5dFu53dsniQaB/xZ14n7zIF+qr
MD5 SHA1 SHA512 SSDEEP

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

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4724-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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-1-5-21-2077438316-259605770-1264560426-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\49A981BD = "C:\\Users\\Admin\\AppData\\Roaming\\49A981BD\\bin.exe"	winver.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4024	676	WerFault.exe	87

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	56438fc662854664e7286a4c8769fa30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winver.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
676	winver.exe
676	winver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
676	winver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3452	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4724 wrote to memory of 676	4724	56438fc662854664e7286a4c8769fa30N.exe	87
PID 4724 wrote to memory of 676	4724	56438fc662854664e7286a4c8769fa30N.exe	87
PID 4724 wrote to memory of 676	4724	56438fc662854664e7286a4c8769fa30N.exe	87
PID 4724 wrote to memory of 676	4724	56438fc662854664e7286a4c8769fa30N.exe	87
PID 676 wrote to memory of 3452	676	winver.exe	56
PID 676 wrote to memory of 2652	676	winver.exe	44

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2652

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3452
- C:\Users\Admin\AppData\Local\Temp\56438fc662854664e7286a4c8769fa30N.exe
  "C:\Users\Admin\AppData\Local\Temp\56438fc662854664e7286a4c8769fa30N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4724
- - 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:676
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 676 -s 352
      4⤵
      Program crash
      PID:4024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 124 -p 676 -ip 676
1⤵
PID:1432

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

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Downloads

memory/676-5-0x0000000077652000-0x0000000077653000-memory.dmp

Download

memory/676-13-0x00000000007D0000-0x00000000007D6000-memory.dmp

Download

memory/676-10-0x00000000007D0000-0x00000000007D6000-memory.dmp

Download

memory/676-7-0x00007FFC72910000-0x00007FFC72B05000-memory.dmp

Download

memory/2652-12-0x0000000000700000-0x0000000000706000-memory.dmp

Download

memory/3452-2-0x0000000000890000-0x0000000000896000-memory.dmp

Download

memory/3452-6-0x00007FFC729AD000-0x00007FFC729AE000-memory.dmp

Download

memory/3452-3-0x0000000000890000-0x0000000000896000-memory.dmp

Download

memory/3452-15-0x00007FFC72B40000-0x00007FFC72B41000-memory.dmp

Download

memory/4724-4-0x0000000002350000-0x0000000002D50000-memory.dmp

Download

memory/4724-8-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/4724-0-0x0000000000400000-0x000000000041D000-memory.dmp

Download

memory/4724-1-0x0000000002160000-0x0000000002161000-memory.dmp

Download