ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
30/10/2022, 07:05

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General

Target

ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe
Size

151KB
MD5

a2e1d0d68b4dae501ca64a19c95e8f90
SHA1

241212e5a85ed408b0295e16912a5be0c1457df0
SHA256

ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e
SHA512

71fdc8b0b09c83a6c5cf036ee0fffdee1f5909f5070a3eff43441fc31e11d603fc8ce5f1e47d9af0ebc819e72a7dcb4e091466cf655d0efd2b5d4b840ca60558
SSDEEP

3072:TPszCgQBgqcDUy2sFoxjHR40LwDPTb3BI:rmCgQiUXsFoxjHR40LwDPHx

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4696	Critical.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\MICROSOFT\WINDOWS\CURRENTVERSION\RUN	Critical.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Critical = "C:\\Windows\\Critical.exe"	Critical.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Critical.exe	ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe
File created	C:\Windows\Critical.exe	ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2128	ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe
2128	ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe
4696	Critical.exe
4696	Critical.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 4696	2128	ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe	80
PID 2128 wrote to memory of 4696	2128	ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe	80
PID 2128 wrote to memory of 4696	2128	ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe	80

C:\Users\Admin\AppData\Local\Temp\ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe
"C:\Users\Admin\AppData\Local\Temp\ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\Critical.exe
  C:\Windows\Critical.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  PID:4696

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Critical.exe

Filesize
151KB

MD5
a2e1d0d68b4dae501ca64a19c95e8f90

SHA1
241212e5a85ed408b0295e16912a5be0c1457df0

SHA256
ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e

SHA512
71fdc8b0b09c83a6c5cf036ee0fffdee1f5909f5070a3eff43441fc31e11d603fc8ce5f1e47d9af0ebc819e72a7dcb4e091466cf655d0efd2b5d4b840ca60558

Download Submit
C:\Windows\Critical.exe

Filesize
151KB

MD5
a2e1d0d68b4dae501ca64a19c95e8f90

SHA1
241212e5a85ed408b0295e16912a5be0c1457df0

SHA256
ded29691141b87b75d8b558bbf807ce3ad31b5010cc8d5cf6f1d38f8541eb22e

SHA512
71fdc8b0b09c83a6c5cf036ee0fffdee1f5909f5070a3eff43441fc31e11d603fc8ce5f1e47d9af0ebc819e72a7dcb4e091466cf655d0efd2b5d4b840ca60558

Download Submit
memory/2128-141-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2128-143-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4696-142-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4696-144-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download