wshrat | f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0

General

Target

f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js
Size

953KB
MD5

21c25960399a73a630e1a4b8300d811c
SHA1

86152daa4a7edfd28f8a3f3083c804204fce7033
SHA256

f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0
SHA512

7f9bc1296091e91e1cea8fb5ed4ac3542edaf74b1a9854e0d546a69e92be3d31b578c58cb81c21828cd43d4e7b37936bf6cd98d5ff68ab13e5fe1740a57cabff
SSDEEP

6144:XQ7Ai2LEudj0YJ404Lb2Hqoivl0WX1u4O9uziIBEJtB8ezLcbtSBYu3FC+ammFVV:gag

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

C2

http://snk2333.duckdns.org:47471

Signatures

WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 29 IoCs

flow	pid	Process
15	4088	wscript.exe
17	4088	wscript.exe
33	4088	wscript.exe
34	4088	wscript.exe
35	4088	wscript.exe
36	4088	wscript.exe
45	4088	wscript.exe
51	4088	wscript.exe
52	4088	wscript.exe
53	4088	wscript.exe
54	4088	wscript.exe
55	4088	wscript.exe
58	4088	wscript.exe
61	4088	wscript.exe
62	4088	wscript.exe
63	4088	wscript.exe
66	4088	wscript.exe
68	4088	wscript.exe
71	4088	wscript.exe
72	4088	wscript.exe
73	4088	wscript.exe
74	4088	wscript.exe
75	4088	wscript.exe
76	4088	wscript.exe
77	4088	wscript.exe
78	4088	wscript.exe
79	4088	wscript.exe
82	4088	wscript.exe
84	4088	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-1-5-21-2013768333-4045878716-2922883000-1000\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\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.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-1-5-21-2013768333-4045878716-2922883000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.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
14	ip-api.com

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

System Information Discovery
T1082

Script User-Agent 28 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	17	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	36	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	52	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	66	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	71	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	51	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	54	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	72	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	75	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	34	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	84	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	76	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	45	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	53	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	55	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	58	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	62	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	79	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	33	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	61	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	63	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	77	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	68	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	35	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	73	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	74	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	78	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands
HTTP User-Agent header	82	WSHRAT\|C0523869\|CMWNOULN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 1/12/2023\|JavaScript-v3.4\|NL:The Netherlands

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 4088	4728	wscript.exe	86
PID 4728 wrote to memory of 4088	4728	wscript.exe	86

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:4088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js

Filesize
953KB

MD5
21c25960399a73a630e1a4b8300d811c

SHA1
86152daa4a7edfd28f8a3f3083c804204fce7033

SHA256
f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0

SHA512
7f9bc1296091e91e1cea8fb5ed4ac3542edaf74b1a9854e0d546a69e92be3d31b578c58cb81c21828cd43d4e7b37936bf6cd98d5ff68ab13e5fe1740a57cabff

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js

Filesize
953KB

MD5
21c25960399a73a630e1a4b8300d811c

SHA1
86152daa4a7edfd28f8a3f3083c804204fce7033

SHA256
f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0

SHA512
7f9bc1296091e91e1cea8fb5ed4ac3542edaf74b1a9854e0d546a69e92be3d31b578c58cb81c21828cd43d4e7b37936bf6cd98d5ff68ab13e5fe1740a57cabff

Download Submit
C:\Users\Admin\AppData\Roaming\f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0.js

Filesize
953KB

MD5
21c25960399a73a630e1a4b8300d811c

SHA1
86152daa4a7edfd28f8a3f3083c804204fce7033

SHA256
f0962774a22adb03e29c34fda016085f1fc99598f23562e5165474469f653bd0

SHA512
7f9bc1296091e91e1cea8fb5ed4ac3542edaf74b1a9854e0d546a69e92be3d31b578c58cb81c21828cd43d4e7b37936bf6cd98d5ff68ab13e5fe1740a57cabff

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads