9882a822f94ab32f588d8db12165838798c8adefefc5301eb367592662df944f

Analysis

max time kernel
138s
max time network
136s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
24/06/2024, 01:57

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General

Target

source/Chlorine.vbs
Size

5KB
MD5

a10d375e013a00dd14a16bfce7b6d2f0
SHA1

9c863fddf6a0a5e7b0b2b1cb8268ea1586de5150
SHA256

16a59e4fd5b0d27325cbf2deeb34f8f49f3368c562e9a5deb934eb234d89ea05
SHA512

6d839b235c9c4ff3021947debb8b73a512c7b8c140ac35a7f49a127446102b84f16fa11e441cc360beea248180de23305527c1de90f3226ddf332e6863c30378
SSDEEP

96:Fo7feQCdUFuzxhldtVpdyQJQI1EUgRtCoYkXZ8qw5oHYpw0:9QCdUgxhl3VpdB6I1qrXZ8q2oHYpw0

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

T1542.003

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

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4106386276-4127174233-3637007343-1000_Classes\Local Settings	WScript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: 33	644	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	644	AUDIODG.EXE
Token: SeShutdownPrivilege	2044	bsod.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4108 wrote to memory of 3108	4108	WScript.exe	73
PID 4108 wrote to memory of 3108	4108	WScript.exe	73
PID 4108 wrote to memory of 3108	4108	WScript.exe	73
PID 4108 wrote to memory of 5108	4108	WScript.exe	74
PID 4108 wrote to memory of 5108	4108	WScript.exe	74
PID 4108 wrote to memory of 1416	4108	WScript.exe	75
PID 4108 wrote to memory of 1416	4108	WScript.exe	75
PID 4108 wrote to memory of 1416	4108	WScript.exe	75
PID 4108 wrote to memory of 4548	4108	WScript.exe	77
PID 4108 wrote to memory of 4548	4108	WScript.exe	77
PID 4108 wrote to memory of 4548	4108	WScript.exe	77
PID 4108 wrote to memory of 648	4108	WScript.exe	78
PID 4108 wrote to memory of 648	4108	WScript.exe	78
PID 4108 wrote to memory of 648	4108	WScript.exe	78
PID 4108 wrote to memory of 3868	4108	WScript.exe	79
PID 4108 wrote to memory of 3868	4108	WScript.exe	79
PID 4108 wrote to memory of 3868	4108	WScript.exe	79
PID 4108 wrote to memory of 4716	4108	WScript.exe	80
PID 4108 wrote to memory of 4716	4108	WScript.exe	80
PID 4108 wrote to memory of 4716	4108	WScript.exe	80
PID 4108 wrote to memory of 2044	4108	WScript.exe	81
PID 4108 wrote to memory of 2044	4108	WScript.exe	81
PID 4108 wrote to memory of 2044	4108	WScript.exe	81

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\source\Chlorine.vbs"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Users\Admin\AppData\Local\Temp\source\mbr.exe
  "C:\Users\Admin\AppData\Local\Temp\source\mbr.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  PID:3108
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\source\msgloop.vbs"
  2⤵
  PID:5108
- C:\Users\Admin\AppData\Local\Temp\source\noise.exe
  "C:\Users\Admin\AppData\Local\Temp\source\noise.exe"
  2⤵
  PID:1416
- C:\Users\Admin\AppData\Local\Temp\source\mousedraw.exe
  "C:\Users\Admin\AppData\Local\Temp\source\mousedraw.exe"
  2⤵
  PID:4548
- C:\Users\Admin\AppData\Local\Temp\source\sussywaves.exe
  "C:\Users\Admin\AppData\Local\Temp\source\sussywaves.exe"
  2⤵
  PID:648
- C:\Users\Admin\AppData\Local\Temp\source\BitBlt1.exe
  "C:\Users\Admin\AppData\Local\Temp\source\BitBlt1.exe"
  2⤵
  PID:3868
- C:\Users\Admin\AppData\Local\Temp\source\IconHell.exe
  "C:\Users\Admin\AppData\Local\Temp\source\IconHell.exe"
  2⤵
  PID:4716
- C:\Users\Admin\AppData\Local\Temp\source\bsod.exe
  "C:\Users\Admin\AppData\Local\Temp\source\bsod.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2044

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x3ac
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:644

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/648-6-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1416-3-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3108-0-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/3868-10-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4548-4-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4716-39-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads