wshrat | 4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

General

Target

proof of payment.js
Size

996KB
MD5

7135b41aea77a2b6c6c7596a539b4969
SHA1

8ffe998003f2049c4853a86e9fcaf9fb77a2d175
SHA256

4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe
SHA512

804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9
SSDEEP

6144:QQu9MZdOv/meeqFp/3Rxc/uzchRhVKlb90kNgQgaIZolrVBYWr+Uqb2KKV/mClfV:TCp

Score

10^/10

wshrat trojan

Malware Config

Extracted

Family

wshrat

C2

http://harold.2waky.com:1604

Signatures

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

Blocklisted process makes network request 18 IoCs

flow	pid	Process
5	268	wscript.exe
7	268	wscript.exe
8	268	wscript.exe
9	268	wscript.exe
11	268	wscript.exe
12	268	wscript.exe
13	268	wscript.exe
15	268	wscript.exe
16	268	wscript.exe
17	268	wscript.exe
19	268	wscript.exe
20	268	wscript.exe
21	268	wscript.exe
23	268	wscript.exe
24	268	wscript.exe
25	268	wscript.exe
27	268	wscript.exe
28	268	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proof of payment.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proof of payment.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
4	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 17 IoCs

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

description	flow	ioc
HTTP User-Agent header	16	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	9	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	12	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	19	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	24	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	27	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	11	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	17	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	20	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	21	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	25	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	7	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	13	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	15	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	23	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	28	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	8	WSHRAT\|706EFC06\|TMRJMUQF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 268	1520	wscript.exe	28
PID 1520 wrote to memory of 268	1520	wscript.exe	28
PID 1520 wrote to memory of 268	1520	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\proof of payment.js"
1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\proof of payment.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:268

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proof of payment.js

Filesize
996KB

MD5
7135b41aea77a2b6c6c7596a539b4969

SHA1
8ffe998003f2049c4853a86e9fcaf9fb77a2d175

SHA256
4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

SHA512
804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9

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

Filesize
996KB

MD5
7135b41aea77a2b6c6c7596a539b4969

SHA1
8ffe998003f2049c4853a86e9fcaf9fb77a2d175

SHA256
4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

SHA512
804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9

Download Submit
C:\Users\Admin\proof of payment.js

Filesize
996KB

MD5
7135b41aea77a2b6c6c7596a539b4969

SHA1
8ffe998003f2049c4853a86e9fcaf9fb77a2d175

SHA256
4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

SHA512
804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9

Download Submit
C:\Users\Admin\proof of payment.js

Filesize
996KB

MD5
7135b41aea77a2b6c6c7596a539b4969

SHA1
8ffe998003f2049c4853a86e9fcaf9fb77a2d175

SHA256
4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

SHA512
804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9

Download Submit

Analysis

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