99270315076b79f2de5fb967bfa76988d5d76d47791891d2ca95edf09f4b3e78

Analysis

max time kernel
29s
max time network
39s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 12:03

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General

Target

99270315076b79f2de5fb967bfa76988d5d76d47791891d2ca95edf09f4b3e78.dll
Size

366KB
MD5

ea3a40332fd36f990724c9d1b9b5a3ca
SHA1

6078c92a552870157fd15e56daa0b831cf18d8a4
SHA256

99270315076b79f2de5fb967bfa76988d5d76d47791891d2ca95edf09f4b3e78
SHA512

971b12353999e7ecb515950041e01502a3b66a28745c269bbc48b1226684bf07c343831eec94bb0e500aa811020d492d6d8103b0f0f02f61ea99340d0385ca2a
SSDEEP

6144:rMXpIf6+bcFE4iN+qREXivJ0TBYvuGXwgsdLiQngA+98gWNlPTGQQm6agrdSsO1:4X2i+MTiAivJ0TqvuawgstLgAxNtTird

Score

6^/10

bootkit persistence

Malware Config

Signatures

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

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 364 wrote to memory of 1868	364	rundll32.exe	28
PID 364 wrote to memory of 1868	364	rundll32.exe	28
PID 364 wrote to memory of 1868	364	rundll32.exe	28
PID 364 wrote to memory of 1868	364	rundll32.exe	28
PID 364 wrote to memory of 1868	364	rundll32.exe	28
PID 364 wrote to memory of 1868	364	rundll32.exe	28
PID 364 wrote to memory of 1868	364	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\99270315076b79f2de5fb967bfa76988d5d76d47791891d2ca95edf09f4b3e78.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\99270315076b79f2de5fb967bfa76988d5d76d47791891d2ca95edf09f4b3e78.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  PID:1868

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

Replay Monitor

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Downloads

memory/1868-55-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/1868-56-0x0000000010000000-0x000000001030E000-memory.dmp

Filesize
3.1MB

Download
memory/1868-57-0x00000000008D0000-0x0000000000913000-memory.dmp

Filesize
268KB

Download
memory/1868-58-0x0000000000A40000-0x0000000000A46000-memory.dmp

Filesize
24KB

Download