4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647

Analysis

max time kernel
144s
max time network
177s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
19/10/2022, 15:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647.exe
Size

34KB
MD5

a1005182dbe7c802d9e2e5f36d540993
SHA1

887216fe51cdaa6d2d2eb4dd7b4081040d07a01b
SHA256

4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647
SHA512

49b3547f8e12c2e355fcc26ff13e4d21b28471df842b24c7b50a8aa76438fca1d63faf3d01364433cefee04335d56f3d57e978e7b870333f1995238d8d4a7d8c
SSDEEP

768:krqffKB8iVA+cH/vVdeBRs7pMttHuR79:NCBUftdLpMj8B

Score

10^/10

persistence

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
UnlimiteD

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1200	WinUpdate.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\system32\\WinUpdate.exe"	WinUpdate.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\WinUpdate.exe	4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647.exe
File opened for modification	C:\Windows\system32\WinUpdate.exe	4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1200	WinUpdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1200	WinUpdate.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 1200	904	4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647.exe	28
PID 904 wrote to memory of 1200	904	4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647.exe	28
PID 904 wrote to memory of 1200	904	4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647.exe	28

C:\Users\Admin\AppData\Local\Temp\4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647.exe
"C:\Users\Admin\AppData\Local\Temp\4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\system32\WinUpdate.exe
  "C:\Windows\system32\WinUpdate.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1200

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\System32\WinUpdate.exe

Filesize
34KB

MD5
a1005182dbe7c802d9e2e5f36d540993

SHA1
887216fe51cdaa6d2d2eb4dd7b4081040d07a01b

SHA256
4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647

SHA512
49b3547f8e12c2e355fcc26ff13e4d21b28471df842b24c7b50a8aa76438fca1d63faf3d01364433cefee04335d56f3d57e978e7b870333f1995238d8d4a7d8c

Download Submit
C:\Windows\system32\WinUpdate.exe

Filesize
34KB

MD5
a1005182dbe7c802d9e2e5f36d540993

SHA1
887216fe51cdaa6d2d2eb4dd7b4081040d07a01b

SHA256
4504202c054482f24edb97e022266310000b709bbfac370f99d09c440f4fd647

SHA512
49b3547f8e12c2e355fcc26ff13e4d21b28471df842b24c7b50a8aa76438fca1d63faf3d01364433cefee04335d56f3d57e978e7b870333f1995238d8d4a7d8c

Download Submit
memory/904-54-0x000007FEF3B30000-0x000007FEF4553000-memory.dmp

Filesize
10.1MB

Download
memory/904-55-0x000007FEF2A90000-0x000007FEF3B26000-memory.dmp

Filesize
16.6MB

Download
memory/904-56-0x0000000001DC6000-0x0000000001DE5000-memory.dmp

Filesize
124KB

Download
memory/904-57-0x000007FEFBF21000-0x000007FEFBF23000-memory.dmp

Filesize
8KB

Download
memory/904-61-0x0000000001DC6000-0x0000000001DE5000-memory.dmp

Filesize
124KB

Download
memory/1200-62-0x000007FEF3B30000-0x000007FEF4553000-memory.dmp

Filesize
10.1MB

Download
memory/1200-63-0x000007FEF2A90000-0x000007FEF3B26000-memory.dmp

Filesize
16.6MB

Download
memory/1200-64-0x0000000000986000-0x00000000009A5000-memory.dmp

Filesize
124KB

Download