ce033e7122990b1c13c24241080daabafa824c7fea207f69f7b20879373c8488

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2022 01:45

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General

Target

ce033e7122990b1c13c24241080daabafa824c7fea207f69f7b20879373c8488.dll
Size

439KB
MD5

6ac19eb52854a4c54f1d15a47006ca40
SHA1

2c047a3096d2eae93f10e81b305db188373dac5f
SHA256

ce033e7122990b1c13c24241080daabafa824c7fea207f69f7b20879373c8488
SHA512

ea881065669ece3200ea0db646f6726bebcfa014320b96da07849c74c19a998250ab1733533e4e33038f804f74358d5a4690e172bbc469c9f74c10b925de1449
SSDEEP

12288:3ci5MfnJSDaSwr3qH+w6NAxcLAcRdAP8QLY7/1C7Jz:3chwDaSs3k+w6ocLAcvAP9YT1k

Score

8^/10

bootkit persistence

Malware Config

Signatures

Blocklisted process makes network request 24 IoCs

flow	pid	Process
11	4984	rundll32.exe
15	4984	rundll32.exe
30	4984	rundll32.exe
40	4984	rundll32.exe
50	4984	rundll32.exe
62	4984	rundll32.exe
66	4984	rundll32.exe
72	4984	rundll32.exe
76	4984	rundll32.exe
82	4984	rundll32.exe
86	4984	rundll32.exe
91	4984	rundll32.exe
95	4984	rundll32.exe
100	4984	rundll32.exe
104	4984	rundll32.exe
108	4984	rundll32.exe
112	4984	rundll32.exe
116	4984	rundll32.exe
120	4984	rundll32.exe
124	4984	rundll32.exe
129	4984	rundll32.exe
133	4984	rundll32.exe
137	4984	rundll32.exe
141	4984	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\-35857163	rundll32.exe
File created	C:\Windows\SysWOW64\11912f	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1400 wrote to memory of 4984	1400	rundll32.exe	81
PID 1400 wrote to memory of 4984	1400	rundll32.exe	81
PID 1400 wrote to memory of 4984	1400	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce033e7122990b1c13c24241080daabafa824c7fea207f69f7b20879373c8488.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ce033e7122990b1c13c24241080daabafa824c7fea207f69f7b20879373c8488.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  PID:4984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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