wshrat | c6b1a76af1ca382029f3d9568863f82257518852812aeeca06da4b0afecdf100

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240221-es
resource tags

arch:x64arch:x86image:win7-20240221-eslocale:es-esos:windows7-x64systemwindows
submitted
07-03-2024 11:43

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General

Target

ujcqhq.js
Size

222KB
MD5

28a74216e1c944f071b25958d81ec47c
SHA1

ae7013cf61337b4b7555c935a0113d08b50ffd00
SHA256

c6b1a76af1ca382029f3d9568863f82257518852812aeeca06da4b0afecdf100
SHA512

93ab441859afcd8594c64a7c65c0d4a0ca3e5a9a88c9347ebaa919853f0df9ca46be77638041b7107d311e9a670328ca8801e1f117d47d03c491a0e7b3cd770f
SSDEEP

6144:tpDxmeXigeXqd1LdkiOBvRafRHFPAeRnAklgF2GuuZD:T7d1LjOJcfdTtl029q

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

resource	yara_rule
behavioral1/files/0x000800000001227d-5.dat	family_wshrat

Blocklisted process makes network request 17 IoCs

flow	pid	Process
4	3032	wscript.exe
6	3032	wscript.exe
8	3032	wscript.exe
9	3032	wscript.exe
11	3032	wscript.exe
12	3032	wscript.exe
13	3032	wscript.exe
15	3032	wscript.exe
16	3032	wscript.exe
17	3032	wscript.exe
19	3032	wscript.exe
20	3032	wscript.exe
21	3032	wscript.exe
23	3032	wscript.exe
24	3032	wscript.exe
25	3032	wscript.exe
27	3032	wscript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Windows\CurrentVersion\Run\ujcqhq = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ujcqhq.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ujcqhq = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\ujcqhq.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

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ujcqhq.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:3032

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:2504

C:\Users\Admin\AppData\Local\Temp\ose00000.exe
"C:\Users\Admin\AppData\Local\Temp\ose00000.exe"
1⤵
PID:2688

C:\Users\Admin\AppData\Local\Temp\ose00000.exe
"C:\Users\Admin\AppData\Local\Temp\ose00000.exe"
1⤵
PID:2356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
222KB

MD5
28a74216e1c944f071b25958d81ec47c

SHA1
ae7013cf61337b4b7555c935a0113d08b50ffd00

SHA256
c6b1a76af1ca382029f3d9568863f82257518852812aeeca06da4b0afecdf100

SHA512
93ab441859afcd8594c64a7c65c0d4a0ca3e5a9a88c9347ebaa919853f0df9ca46be77638041b7107d311e9a670328ca8801e1f117d47d03c491a0e7b3cd770f

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads