Analysis
- max time kernel
146s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220721-en - resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system - submitted
02/08/2022, 09:02
Static task
static1
Behavioral task
behavioral1
Sample
Confirmation Transfer MT103_0036727637.js
Resource
win7-20220718-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
Confirmation Transfer MT103_0036727637.js
Resource
win10v2004-20220721-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target Confirmation Transfer MT103_0036727637.js
- Size 33KB
- Sample220802-kzftgaecfr
- SHA256 79e73de504a8097fb9c96260ef145113473a1387615ea62a7f6e4af18b181dd2
- MD5 f7301900cc84247da6f4d2d6c4e3265d
- SHA1 509f1b5f11edf2b9681477f4f8140232f1df5f3c
- SHA512 d439d1e03f20337d610235c7b5b337ce19301f6b4c17575167f5b6c327832cd00614fa4b9746b201750bca90878cbd3d3a344a82ee5edc933b905cf970ff8ac2
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
wshrat
C2
-
http://fresh01.ddns.net:2256
Signatures
- Blocklisted process makes network request 25 IoCs
flow pid Process 5 3040 wscript.exe 22 3040 wscript.exe 23 3040 wscript.exe 30 3040 wscript.exe 31 3040 wscript.exe 45 3040 wscript.exe 56 3040 wscript.exe 57 3040 wscript.exe 61 3040 wscript.exe 67 3040 wscript.exe 72 3040 wscript.exe 73 3040 wscript.exe 77 3040 wscript.exe 78 3040 wscript.exe 79 3040 wscript.exe 80 3040 wscript.exe 81 3040 wscript.exe 82 3040 wscript.exe 83 3040 wscript.exe 84 3040 wscript.exe 85 3040 wscript.exe 86 3040 wscript.exe 87 3040 wscript.exe 88 3040 wscript.exe 89 3040 wscript.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\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\Confirmation Transfer MT103_0036727637.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Confirmation Transfer MT103_0036727637.js wscript.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Confirmation Transfer MT103_0036727637 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Confirmation Transfer MT103_0036727637.js\"" wscript.exe Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Confirmation Transfer MT103_0036727637 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Confirmation Transfer MT103_0036727637.js\"" wscript.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Script User-Agent 25 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 31 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 72 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 80 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 89 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 23 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 81 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 82 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 87 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 88 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 5 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 22 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 56 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 86 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 30 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 45 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 57 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 61 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 67 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 73 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 77 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 78 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 79 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 83 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 84 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript HTTP User-Agent header 85 WSHRAT|7EFACB25|LNYFGEHI|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 2/8/2022|JavaScript - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3040 wrote to memory of 4132 3040 wscript.exe 81 PID 3040 wrote to memory of 4132 3040 wscript.exe 81
Processes
-
C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\Confirmation Transfer MT103_0036727637.js"1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\LftpSpLZiA.js"2⤵PID:4132
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\LftpSpLZiA.js
- Size 2KB
- SHA256 1d0987c7c8f3cbe94e81849320042acac0fb715fad266f09db493b3a15e97137
- MD5 0f56663498d9bdca5db4ce0b21577fc3
- SHA1 8effed835435754345bf4fdcbf556adaba0ec671
- SHA512 a6adbec8dbf651f08f329b75f4fbce6d5f09bcd2b5a4e23376e02dad17a0a0f9db1e9b70462bad6abbb1599a5c60821ad9051b4b1d465c239708274ed8ebff96
- MD5 SHA1 SHA512