4a45566604c3d1ddc43c0d2130614af779a0de8f165596bfdce3329c50efae90

Analysis

max time kernel
119s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 07:14

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General

Target

2cf8005fe6571778baa1181c9888795e.dll
Size

84KB
MD5

2cf8005fe6571778baa1181c9888795e
SHA1

23c4ba56b05e870764d4c9748e5b8b537b6ff3a7
SHA256

4a45566604c3d1ddc43c0d2130614af779a0de8f165596bfdce3329c50efae90
SHA512

dec9154b796396ed16976c31013d1df36a72b2373fb26df5a2a098abd823e82d0836de29d2c846abcda97ea8184667dc4068409c90f73d32a97c5d0a37259ba4
SSDEEP

1536:ezXXEz132xYuOsiOBDokwPwIoaKRt/vKi:eE5IYuOsiOBDokKCx3

Score

6^/10

bootkit discovery persistence

Malware Config

Signatures

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2692	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2692	2424	rundll32.exe	28
PID 2424 wrote to memory of 2692	2424	rundll32.exe	28
PID 2424 wrote to memory of 2692	2424	rundll32.exe	28
PID 2424 wrote to memory of 2692	2424	rundll32.exe	28
PID 2424 wrote to memory of 2692	2424	rundll32.exe	28
PID 2424 wrote to memory of 2692	2424	rundll32.exe	28
PID 2424 wrote to memory of 2692	2424	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cf8005fe6571778baa1181c9888795e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2424
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cf8005fe6571778baa1181c9888795e.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:2692

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

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2692-0-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download
memory/2692-1-0x0000000010000000-0x0000000010009000-memory.dmp

Filesize
36KB

Download