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
4	1280	wscript.exe
6	1280	wscript.exe
7	1280	wscript.exe
8	1280	wscript.exe
10	1280	wscript.exe
12	1280	wscript.exe
13	1280	wscript.exe
15	1280	wscript.exe
16	1280	wscript.exe
17	1280	wscript.exe
19	1280	wscript.exe
20	1280	wscript.exe
21	1280	wscript.exe
23	1280	wscript.exe
24	1280	wscript.exe
25	1280	wscript.exe
27	1280	wscript.exe
28	1280	wscript.exe
29	1280	wscript.exe
31	1280	wscript.exe
32	1280	wscript.exe
33	1280	wscript.exe
35	1280	wscript.exe
36	1280	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
3	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	15	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	24	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	25	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	33	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	6	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	36	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	17	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	19	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	20	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	7	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	8	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	10	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	12	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	13	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	27	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	31	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	32	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	35	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	16	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	21	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	23	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	28	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	29	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/5/2023\|JavaScript-v3.4\|IN:India

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1280	1724	wscript.exe	29
PID 1724 wrote to memory of 1280	1724	wscript.exe	29
PID 1724 wrote to memory of 1280	1724	wscript.exe	29

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\d295442674b1989fd65dea6a56081467424365f1c43ef9b74bff7fdb0f0c77ec.js
1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1724
- 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:1280

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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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