metasploit | 8b54df8133dbef3dbaf42fb3ee9267fd521228776f16d9500eb12b9cadf678fd

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 04:51

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General

Target

28e751fdd703634231c0a25d7081ffe2.exe
Size

145KB
MD5

28e751fdd703634231c0a25d7081ffe2
SHA1

cd660ea569bf6b2f55bbbe1352969e51878491a5
SHA256

8b54df8133dbef3dbaf42fb3ee9267fd521228776f16d9500eb12b9cadf678fd
SHA512

68271210a22a525a66de759d6ab0de345b5f84fe82fcc862b57661282ace81fc22623340b7b3fd9db4d2d005e2e2370d0d4fa9acb3867ef4d53f2d7c73904ccd
SSDEEP

3072:7mXTLdvPFfj1Ky33bbrMbvT0q8O1cZPzQ7IXMBc+AMP+QfQEhxFyVU7/0yoC4h:7qJnwvP6bQ7yMP+DE827/xovh

Score

10^/10

metasploit backdoor bootkit persistence trojan

Malware Config

Extracted

Family

metasploit

Version

encoder/fnstenv_mov

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Deletes itself 1 IoCs

pid	Process
2576	cmd.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

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	28e751fdd703634231c0a25d7081ffe2.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\dllcache\newhost.exe	28e751fdd703634231c0a25d7081ffe2.exe
File created	C:\Windows\SysWOW64\dllcache\newhost.exe	28e751fdd703634231c0a25d7081ffe2.exe

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

System Information Discovery
T1082

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	28e751fdd703634231c0a25d7081ffe2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	28e751fdd703634231c0a25d7081ffe2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	28e751fdd703634231c0a25d7081ffe2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2576	2220	28e751fdd703634231c0a25d7081ffe2.exe	28
PID 2220 wrote to memory of 2576	2220	28e751fdd703634231c0a25d7081ffe2.exe	28
PID 2220 wrote to memory of 2576	2220	28e751fdd703634231c0a25d7081ffe2.exe	28
PID 2220 wrote to memory of 2576	2220	28e751fdd703634231c0a25d7081ffe2.exe	28

C:\Users\Admin\AppData\Local\Temp\28e751fdd703634231c0a25d7081ffe2.exe
"C:\Users\Admin\AppData\Local\Temp\28e751fdd703634231c0a25d7081ffe2.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\28E751~1.EXE >> NUL
  2⤵
  - Deletes itself
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2220-0-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2220-1-0x00000000002E0000-0x0000000000310000-memory.dmp

Filesize
192KB

Download
memory/2220-2-0x0000000000310000-0x0000000000312000-memory.dmp

Filesize
8KB

Download
memory/2220-9-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2220-20-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2220-19-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2220-21-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/2220-18-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2220-17-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download
memory/2220-16-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/2220-15-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2220-14-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2220-13-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/2220-12-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2220-11-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2220-10-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2220-8-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2220-7-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2220-6-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2220-5-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2220-4-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2220-3-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2220-22-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/2220-23-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/2220-25-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/2220-31-0x0000000001F90000-0x0000000001F91000-memory.dmp

Filesize
4KB

Download
memory/2220-30-0x0000000001FA0000-0x0000000001FA1000-memory.dmp

Filesize
4KB

Download
memory/2220-32-0x0000000001FC0000-0x0000000001FC1000-memory.dmp

Filesize
4KB

Download
memory/2220-33-0x0000000001FB0000-0x0000000001FB1000-memory.dmp

Filesize
4KB

Download
memory/2220-34-0x00000000022E0000-0x00000000022E1000-memory.dmp

Filesize
4KB

Download
memory/2220-35-0x0000000002310000-0x0000000002311000-memory.dmp

Filesize
4KB

Download
memory/2220-36-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/2220-29-0x0000000001F30000-0x0000000001F31000-memory.dmp

Filesize
4KB

Download
memory/2220-28-0x0000000001F40000-0x0000000001F41000-memory.dmp

Filesize
4KB

Download
memory/2220-27-0x0000000000700000-0x0000000000701000-memory.dmp

Filesize
4KB

Download
memory/2220-26-0x0000000000710000-0x0000000000711000-memory.dmp

Filesize
4KB

Download
memory/2220-37-0x0000000002330000-0x0000000002331000-memory.dmp

Filesize
4KB

Download
memory/2220-24-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/2220-38-0x0000000002320000-0x0000000002321000-memory.dmp

Filesize
4KB

Download
memory/2220-39-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/2220-40-0x00000000022F0000-0x00000000022F1000-memory.dmp

Filesize
4KB

Download
memory/2220-41-0x0000000002350000-0x0000000002351000-memory.dmp

Filesize
4KB

Download
memory/2220-42-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2220-43-0x00000000002E0000-0x0000000000310000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads