wshrat | 3a44e4d4ee6f0fd68a2df9704a0876dfa0496e3c77ba51b75052f465a00a8693

General

Target

d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.js
Size

990KB
MD5

9f0fc6d60f36df9301170a6ec0d3f408
SHA1

88ce1c32a1f7c18f34acf969e839ec4882e1428f
SHA256

d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec
SHA512

ddcd02d4b33bc0af4c5f4112ea7d00cef17dc56f0dd90ed8fb5ae0355ff7fb9c7a627f7f4f522954302abe27dee83dcb166f98735b5b49275810d017f2521293
SSDEEP

3072:QQIC0ry/lGgq1YRZILn3cl3hkdMnmxfHtnPr:QQIC0ry/lGgq1YR7y

Score

10^/10

wshrat trojan

Malware Config

Extracted

Family

wshrat

C2

http://harold.2waky.com:3609

Signatures

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

Blocklisted process makes network request 24 IoCs

flow	pid	Process
13	4112	wscript.exe
16	4112	wscript.exe
27	4112	wscript.exe
28	4112	wscript.exe
34	4112	wscript.exe
36	4112	wscript.exe
41	4112	wscript.exe
42	4112	wscript.exe
43	4112	wscript.exe
45	4112	wscript.exe
46	4112	wscript.exe
47	4112	wscript.exe
49	4112	wscript.exe
50	4112	wscript.exe
51	4112	wscript.exe
52	4112	wscript.exe
54	4112	wscript.exe
55	4112	wscript.exe
56	4112	wscript.exe
58	4112	wscript.exe
59	4112	wscript.exe
60	4112	wscript.exe
62	4112	wscript.exe
63	4112	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-1-5-21-2548970870-3691742953-3895070203-1000\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\d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.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
12	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 23 IoCs

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

description	flow	ioc
HTTP User-Agent header	60	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	28	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	34	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	51	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	54	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	59	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	16	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	36	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	42	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	43	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	45	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	41	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	46	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	50	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	58	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	63	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	56	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	62	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	27	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	47	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	49	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	52	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	55	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 4112	3372	wscript.exe	82
PID 3372 wrote to memory of 4112	3372	wscript.exe	82

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.js
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:3372
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:4112

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.js

Filesize
990KB

MD5
9f0fc6d60f36df9301170a6ec0d3f408

SHA1
88ce1c32a1f7c18f34acf969e839ec4882e1428f

SHA256
d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec

SHA512
ddcd02d4b33bc0af4c5f4112ea7d00cef17dc56f0dd90ed8fb5ae0355ff7fb9c7a627f7f4f522954302abe27dee83dcb166f98735b5b49275810d017f2521293

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.js

Filesize
990KB

MD5
9f0fc6d60f36df9301170a6ec0d3f408

SHA1
88ce1c32a1f7c18f34acf969e839ec4882e1428f

SHA256
d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec

SHA512
ddcd02d4b33bc0af4c5f4112ea7d00cef17dc56f0dd90ed8fb5ae0355ff7fb9c7a627f7f4f522954302abe27dee83dcb166f98735b5b49275810d017f2521293

Download Submit
C:\Users\Admin\AppData\Roaming\d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.js

Filesize
990KB

MD5
9f0fc6d60f36df9301170a6ec0d3f408

SHA1
88ce1c32a1f7c18f34acf969e839ec4882e1428f

SHA256
d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec

SHA512
ddcd02d4b33bc0af4c5f4112ea7d00cef17dc56f0dd90ed8fb5ae0355ff7fb9c7a627f7f4f522954302abe27dee83dcb166f98735b5b49275810d017f2521293

Download Submit

Analysis

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