4e0ddcd303f27c01dcc8a35a9bd821c53fb7dcca474ac7f0c84d3c6451e9f778

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09-04-2024 13:34

240409-qvlrtabe9s 10

09-04-2024 13:34

09-04-2024 13:33

09-04-2024 13:33

07-07-2023 11:45

Analysis

max time kernel
1799s
max time network
1802s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09-04-2024 13:34

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General

Target

Antimalware Service Executable.js
Size

713KB
MD5

c958a31d5e439d5b0d01900e5a85992a
SHA1

fc40d0ef637fe55fbaf83e8f4891e008ac736df6
SHA256

e3a33757c2e596f7ee50a4a41ff58f2e64dbdb062257fe5749ca19b955b0baaf
SHA512

2aa0c813b7c17b01e1c18a3a12fb4f3c8ba9c9fee79a3ed66421959fd0440571e0cba5e90569970655342ce2730e823feae23ef6c5da09248f3da68fc0f3cf1c
SSDEEP

12288:KOmMdaDXBuOdAAxcHaMp7yk0AaDhlLBO0Xzaj1B+UquKbLZaQlx+2CRQlD+EhajH:KOmMdaDXBuOdAAxcHaMp7yk0AaDhlLBc

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 64 IoCs

flow	pid	Process
8	4576	wscript.exe
14	4576	wscript.exe
26	4576	wscript.exe
40	4576	wscript.exe
44	4576	wscript.exe
51	4576	wscript.exe
52	4576	wscript.exe
53	4576	wscript.exe
54	4576	wscript.exe
55	4576	wscript.exe
56	4576	wscript.exe
57	4576	wscript.exe
58	4576	wscript.exe
59	4576	wscript.exe
64	4576	wscript.exe
65	4576	wscript.exe
67	4576	wscript.exe
68	4576	wscript.exe
69	4576	wscript.exe
71	4576	wscript.exe
72	4576	wscript.exe
73	4576	wscript.exe
74	4576	wscript.exe
75	4576	wscript.exe
76	4576	wscript.exe
77	4576	wscript.exe
78	4576	wscript.exe
79	4576	wscript.exe
80	4576	wscript.exe
81	4576	wscript.exe
82	4576	wscript.exe
83	4576	wscript.exe
84	4576	wscript.exe
85	4576	wscript.exe
86	4576	wscript.exe
87	4576	wscript.exe
88	4576	wscript.exe
89	4576	wscript.exe
90	4576	wscript.exe
91	4576	wscript.exe
92	4576	wscript.exe
93	4576	wscript.exe
94	4576	wscript.exe
95	4576	wscript.exe
96	4576	wscript.exe
97	4576	wscript.exe
98	4576	wscript.exe
99	4576	wscript.exe
100	4576	wscript.exe
101	4576	wscript.exe
102	4576	wscript.exe
103	4576	wscript.exe
104	4576	wscript.exe
105	4576	wscript.exe
106	4576	wscript.exe
107	4576	wscript.exe
108	4576	wscript.exe
109	4576	wscript.exe
110	4576	wscript.exe
111	4576	wscript.exe
112	4576	wscript.exe
113	4576	wscript.exe
114	4576	wscript.exe
115	4576	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Antimalware Service Executable.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Antimalware Service Executable.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Antimalware Service Executable = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Antimalware Service Executable.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Antimalware Service Executable = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Antimalware Service Executable.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Antimalware Service Executable = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Antimalware Service Executable.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Antimalware Service Executable = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\Antimalware Service Executable.js\""	wscript.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	ip-api.com

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 228 wrote to memory of 4576	228	wscript.exe	87
PID 228 wrote to memory of 4576	228	wscript.exe	87

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Antimalware Service Executable.js"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:228
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Antimalware Service Executable.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:4576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Antimalware Service Executable.js

Filesize
713KB

MD5
c958a31d5e439d5b0d01900e5a85992a

SHA1
fc40d0ef637fe55fbaf83e8f4891e008ac736df6

SHA256
e3a33757c2e596f7ee50a4a41ff58f2e64dbdb062257fe5749ca19b955b0baaf

SHA512
2aa0c813b7c17b01e1c18a3a12fb4f3c8ba9c9fee79a3ed66421959fd0440571e0cba5e90569970655342ce2730e823feae23ef6c5da09248f3da68fc0f3cf1c

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads