6edae4802f00f7339f786534c29bf22b1f9c0cd0920a88f884be66bf563a1c02

Analysis

max time kernel
127s
max time network
28s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-04-2024 11:23

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General

Target

ass.vbs
Size

1KB
MD5

0971210e69a8fc2d1bfc3a2549226f99
SHA1

4f3ac74c56e81868e252c8e057fb88b0de039605
SHA256

6edae4802f00f7339f786534c29bf22b1f9c0cd0920a88f884be66bf563a1c02
SHA512

c4ca0e5772e9a2cee310f5b39b6b94b7a04656d7a7e344b275a26657e43a1b71a6c4ccff7c90d8128b5b767af16d590c7070a5d57fe9ac93c79ee0d9a5988ea2

Score

8^/10

evasion

Malware Config

Signatures

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

reg.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	reg.exe

Disables Task Manager via registry modification
evasion
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2276 taskkill.exe
Modifies registry key 1 TTPs 2 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exe

pid process

3056 reg.exe
2568 reg.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

notepad.exe

pid process

2752 notepad.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2276 taskkill.exe

pid	process
2276	taskkill.exe

pid	process
3056	reg.exe
2568	reg.exe

pid	process
2752	notepad.exe

description	pid	process
Token: SeDebugPrivilege	2276	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

WScript.exe

description	pid	process	target process
PID 3048 wrote to memory of 3056	3048	WScript.exe	reg.exe
PID 3048 wrote to memory of 3056	3048	WScript.exe	reg.exe
PID 3048 wrote to memory of 3056	3048	WScript.exe	reg.exe
PID 3048 wrote to memory of 2568	3048	WScript.exe	reg.exe
PID 3048 wrote to memory of 2568	3048	WScript.exe	reg.exe
PID 3048 wrote to memory of 2568	3048	WScript.exe	reg.exe
PID 3048 wrote to memory of 2752	3048	WScript.exe	notepad.exe
PID 3048 wrote to memory of 2752	3048	WScript.exe	notepad.exe
PID 3048 wrote to memory of 2752	3048	WScript.exe	notepad.exe
PID 3048 wrote to memory of 2276	3048	WScript.exe	taskkill.exe
PID 3048 wrote to memory of 2276	3048	WScript.exe	taskkill.exe
PID 3048 wrote to memory of 2276	3048	WScript.exe	taskkill.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ass.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:3048

C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
2⤵
- Modifies registry key
PID:3056

C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
2⤵
- Disables RegEdit via registry modification
- Modifies registry key
PID:2568

C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" C:\Users\Admin\AppData\Local\Temp\example.txt
2⤵
- Opens file in notepad (likely ransom note)
PID:2752

C:\Windows\System32\taskkill.exe
"C:\Windows\System32\taskkill.exe" /f /im svchost.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2276

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
1⤵
PID:2828

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
1⤵
PID:1232

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
1⤵
PID:2112

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:1456

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
1⤵
PID:2012

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
1⤵
PID:2020

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\example.txt
Filesize
57B

MD5
817fdb4e756556eefd6912f3cc8d06db

SHA1
7c2e82c99ac6926574c596aee06df97f5b966d03

SHA256
ab2df71056fe1c80fc5a540f32c3e14d206d52997164f94d9241f36032e09dcf

SHA512
446b19e4cd56c6ff0c9753205f0882ad0450e97cabd888c68421fbf2c84631d532f968bfe226cfeef43cea42d27dd70a73db6c1960726ac60dc31066c51cdb8f

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