wshrat | 0d233c96aa7f53cec4c2f23cec481e7bbfa19995b67c997f7edb94afe8cca8d9

Analysis

max time kernel
147s
max time network
139s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
16-01-2024 18:33

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General

Target

6094df12286a36fb1428afc89e3c19c5.js
Size

123KB
MD5

6094df12286a36fb1428afc89e3c19c5
SHA1

e6f25d74194e1482fd597def62f0ae3ba48f9760
SHA256

0d233c96aa7f53cec4c2f23cec481e7bbfa19995b67c997f7edb94afe8cca8d9
SHA512

04a75076a5318730bb998e52de1403d41674f04d9c37cb28f096ff0c60da302f65a58ebbe224d74b3d22eed1d80b82c074bf06061fe31c0566f24ebffde28a0e
SSDEEP

1536:q9mx0dB/va/w/XJgZLyjw7aj+ovdff991AuPR+YAhFgG99W+2QSEooATaRa:onB/nRgZzcVfn/PROFPAeRa

Score

10^/10

wshrat persistence trojan

Malware Config

Signatures

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

WSHRAT payload 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6094df12286a36fb1428afc89e3c19c5.js	family_wshrat

Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

4 1216 wscript.exe

flow	pid	process
4	1216	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6094df12286a36fb1428afc89e3c19c5.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6094df12286a36fb1428afc89e3c19c5.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\6094df12286a36fb1428afc89e3c19c5 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\6094df12286a36fb1428afc89e3c19c5.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6094df12286a36fb1428afc89e3c19c5 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\6094df12286a36fb1428afc89e3c19c5.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.

Processes:

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

flow	ioc
3	ip-api.com

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\6094df12286a36fb1428afc89e3c19c5.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1216

Network

MITRE ATT&CK Matrix ATT&CK v13

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

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6094df12286a36fb1428afc89e3c19c5.js
Filesize
123KB

MD5
6094df12286a36fb1428afc89e3c19c5

SHA1
e6f25d74194e1482fd597def62f0ae3ba48f9760

SHA256
0d233c96aa7f53cec4c2f23cec481e7bbfa19995b67c997f7edb94afe8cca8d9

SHA512
04a75076a5318730bb998e52de1403d41674f04d9c37cb28f096ff0c60da302f65a58ebbe224d74b3d22eed1d80b82c074bf06061fe31c0566f24ebffde28a0e

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