wshrat | 39f7abd459bda03744d7d1dfb7dd15b2204014d75f20d86a13789648d6f44b1d

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-06-2024 15:07

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General

Target

093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js
Size

179KB
MD5

093aa4289d9d8d8315ab0ea9b306f0a0
SHA1

0316c6e558148a10d0acf63bc84f53ca315b1acf
SHA256

39f7abd459bda03744d7d1dfb7dd15b2204014d75f20d86a13789648d6f44b1d
SHA512

ddea7839a14759a27d17578850fb473f720bf911cb9d6e56c3e55a963eca51a85ae1706d2f8bca31b216fa7ef2457135dd1a198008203e6635cb73fd3df985f8
SSDEEP

3072:+p1gHeX3reXqf6ZKOBRY+7Q0bamKZtvEzKbURCqeGK/6SbIpklgVDSxGfmuZyas:+p1gHeX3reXqf6ZKwRY+cM24RCqeGKZR

Score

10^/10

wshrat execution 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
behavioral2/files/0x000a0000000233f2-3.dat	family_wshrat

Blocklisted process makes network request 6 IoCs

flow	pid	Process
5	2908	wscript.exe
11	2908	wscript.exe
14	2908	wscript.exe
15	2908	wscript.exe
16	2908	wscript.exe
17	2908	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-1-5-21-1337824034-2731376981-3755436523-1000\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\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.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
2	ip-api.com

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 2908	644	wscript.exe	82
PID 644 wrote to memory of 2908	644	wscript.exe	82

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:644
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:2908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\093aa4289d9d8d8315ab0ea9b306f0a0_JaffaCakes118.js

Filesize
179KB

MD5
093aa4289d9d8d8315ab0ea9b306f0a0

SHA1
0316c6e558148a10d0acf63bc84f53ca315b1acf

SHA256
39f7abd459bda03744d7d1dfb7dd15b2204014d75f20d86a13789648d6f44b1d

SHA512
ddea7839a14759a27d17578850fb473f720bf911cb9d6e56c3e55a963eca51a85ae1706d2f8bca31b216fa7ef2457135dd1a198008203e6635cb73fd3df985f8

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads