472e60a2c0f1f41c0e2adf4a849376a09050a035d0f8cb2ca8b0f341daefc4a1

Analysis

max time kernel
150s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/02/2023, 18:53

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General

Target

7840c07d4d8f75dcd747d96912d2518659c0cd56.exe
Size

476KB
MD5

8a80deda6089d4ec669248c5ac2e8cca
SHA1

7840c07d4d8f75dcd747d96912d2518659c0cd56
SHA256

472e60a2c0f1f41c0e2adf4a849376a09050a035d0f8cb2ca8b0f341daefc4a1
SHA512

e64f3c994282553275bae5c9477eb70ed346bc687ed958dbc64971424b745470c654e6c962b8702e08b86b6385c98469cdbfbd3ea253203b8070802d260568d9
SSDEEP

12288:JCQ5gnHbL8z2hb/ha9SctISaeumhiF0AQ8Zazas:V5gm2bhqh8Q8ZaGs

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Local\\wgy.exe,"	reg.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
896	PING.EXE
1152	PING.EXE
808	PING.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe
580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe
580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 580 wrote to memory of 1424	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe	28
PID 580 wrote to memory of 1424	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe	28
PID 580 wrote to memory of 1424	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe	28
PID 580 wrote to memory of 1424	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe	28
PID 1424 wrote to memory of 896	1424	cmd.exe	30
PID 1424 wrote to memory of 896	1424	cmd.exe	30
PID 1424 wrote to memory of 896	1424	cmd.exe	30
PID 1424 wrote to memory of 896	1424	cmd.exe	30
PID 580 wrote to memory of 1900	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe	31
PID 580 wrote to memory of 1900	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe	31
PID 580 wrote to memory of 1900	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe	31
PID 580 wrote to memory of 1900	580	7840c07d4d8f75dcd747d96912d2518659c0cd56.exe	31
PID 1900 wrote to memory of 1152	1900	cmd.exe	33
PID 1900 wrote to memory of 1152	1900	cmd.exe	33
PID 1900 wrote to memory of 1152	1900	cmd.exe	33
PID 1900 wrote to memory of 1152	1900	cmd.exe	33
PID 1424 wrote to memory of 1832	1424	cmd.exe	34
PID 1424 wrote to memory of 1832	1424	cmd.exe	34
PID 1424 wrote to memory of 1832	1424	cmd.exe	34
PID 1424 wrote to memory of 1832	1424	cmd.exe	34
PID 1900 wrote to memory of 808	1900	cmd.exe	35
PID 1900 wrote to memory of 808	1900	cmd.exe	35
PID 1900 wrote to memory of 808	1900	cmd.exe	35
PID 1900 wrote to memory of 808	1900	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\7840c07d4d8f75dcd747d96912d2518659c0cd56.exe
"C:\Users\Admin\AppData\Local\Temp\7840c07d4d8f75dcd747d96912d2518659c0cd56.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:580
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 36 > nul && REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\wgy.exe,"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1424
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 36
    3⤵
    - Runs ping.exe
    PID:896
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\wgy.exe,"
    3⤵
    - Modifies WinLogon for persistence
    PID:1832
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 39 > nul && copy "C:\Users\Admin\AppData\Local\Temp\7840c07d4d8f75dcd747d96912d2518659c0cd56.exe" "C:\Users\Admin\AppData\Local\wgy.exe" && ping 127.0.0.1 -n 39 > nul && "C:\Users\Admin\AppData\Local\wgy.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1900
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 39
    3⤵
    - Runs ping.exe
    PID:1152
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 39
    3⤵
    - Runs ping.exe
    PID:808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/580-54-0x0000000000B50000-0x0000000000BCC000-memory.dmp

Filesize
496KB

Download
memory/580-55-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/580-56-0x0000000000450000-0x0000000000484000-memory.dmp

Filesize
208KB

Download
memory/580-57-0x00000000006A0000-0x00000000006B8000-memory.dmp

Filesize
96KB

Download