c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482

Analysis

max time kernel
35s
max time network
42s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
28/10/2022, 18:17

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General

Target

c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe
Size

294KB
MD5

0be9f172083c2bfd77e333942ba2c374
SHA1

c101c585eb22350d003129942f742c8665fb1c90
SHA256

c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482
SHA512

5aca9ec0532807136dbb2d9939f4dbde2dc8b83464c62b1da3f87e96482eea3383a7bc51543f943958b3d856c01a35003378b3d113c59ad717861843b6383228
SSDEEP

6144:jn73VoVj14cs1MHHYwuBk4TyQOI5JgpcvqNplcnnM4A:rrVo9VMHT0Iw5pyA

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	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 900 set thread context of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27
PID 900 wrote to memory of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27
PID 900 wrote to memory of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27
PID 900 wrote to memory of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27
PID 900 wrote to memory of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27
PID 900 wrote to memory of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27
PID 900 wrote to memory of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27
PID 900 wrote to memory of 1992	900	c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe	27

C:\Users\Admin\AppData\Local\Temp\c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe
"C:\Users\Admin\AppData\Local\Temp\c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:900
- C:\Users\Admin\AppData\Local\Temp\c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe
  C:\Users\Admin\AppData\Local\Temp\c8c11071552ee2af65568211176458242ba6d49a440b288f23cad99aea39f482.exe
  2⤵
  PID:1992

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/900-54-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/900-60-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1992-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1992-61-0x0000000000400000-0x0000000000408960-memory.dmp

Filesize
34KB

Download
memory/1992-62-0x0000000076071000-0x0000000076073000-memory.dmp

Filesize
8KB

Download
memory/1992-63-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download