Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
30/09/2022, 09:07
Static task
static1
Behavioral task
behavioral1
Sample
COMPLAINT.pdf.js
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
COMPLAINT.pdf.js
Resource
win10v2004-20220901-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target COMPLAINT.pdf.js
- Size 46KB
- Sample220930-k3a3dsdba5
- SHA256 9f6e297dd86de88825487549c0f25f02c10138b57b1b955034995615c58a13d2
- MD5 56d85e623a701f4142a111275fbbc4f5
- SHA1 51a35029e972c33d4ca4b835f00ab3a5a0469b9b
- SHA512 a75b846f4e8c1880f925ab295e972cf2f5aeb14f48bb6b849432853d4d1d487535f3632388fb5033b61570f8eda59d7623d0cf02f99a7d8dbccedd2e4c79956e
- SSDEEP 768:7Vn42jDFXsoL7DkiZNsS83FmspAlaxuZDdiovlA2kBqV160Sa0mBSSLtdG:7Vn3jOK7DjZTyBil2wDdiovS660SakSi
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
wshrat
C2
-
http://niiarmah.kozow.com:1604
Signatures
- Blocklisted process makes network request 40 IoCs
flow pid Process 5 1036 wscript.exe 6 1212 wscript.exe 8 3324 wscript.exe 23 3324 wscript.exe 28 3324 wscript.exe 31 3324 wscript.exe 33 3324 wscript.exe 34 1212 wscript.exe 35 1036 wscript.exe 41 3324 wscript.exe 46 3324 wscript.exe 57 3324 wscript.exe 61 3324 wscript.exe 64 3324 wscript.exe 65 3324 wscript.exe 66 1036 wscript.exe 67 1212 wscript.exe 69 3324 wscript.exe 71 3324 wscript.exe 72 3324 wscript.exe 73 3324 wscript.exe 74 3324 wscript.exe 75 1212 wscript.exe 76 1036 wscript.exe 77 3324 wscript.exe 79 3324 wscript.exe 80 3324 wscript.exe 81 3324 wscript.exe 82 3324 wscript.exe 83 1036 wscript.exe 84 1212 wscript.exe 85 3324 wscript.exe 86 3324 wscript.exe 87 3324 wscript.exe 88 3324 wscript.exe 89 3324 wscript.exe 90 1212 wscript.exe 91 1036 wscript.exe 92 3324 wscript.exe 93 3324 wscript.exe - Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation wscript.exe Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation wscript.exe - Drops startup file 5 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COMPLAINT.pdf.js wscript.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SShWrokJru.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SShWrokJru.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COMPLAINT.pdf.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SShWrokJru.js wscript.exe - Adds Run key to start application 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\COMPLAINT = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\COMPLAINT.pdf.js\"" wscript.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\COMPLAINT = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\COMPLAINT.pdf.js\"" wscript.exe Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\COMPLAINT = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\COMPLAINT.pdf.js\"" wscript.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\software\microsoft\windows\currentversion\run wscript.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\COMPLAINT = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\COMPLAINT.pdf.js\"" wscript.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Script User-Agent 28 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 92 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 93 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 74 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 89 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 79 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 82 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 87 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 28 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 72 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 33 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 46 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 71 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 77 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 80 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 8 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 65 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 81 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 23 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 31 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 61 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 64 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 86 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 88 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 41 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 57 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 85 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 73 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript HTTP User-Agent header 69 WSHRAT|36F4858E|IYMUGYHL|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 30/9/2022|JavaScript - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5008 wrote to memory of 1036 5008 wscript.exe 85 PID 5008 wrote to memory of 1036 5008 wscript.exe 85 PID 5008 wrote to memory of 3324 5008 wscript.exe 86 PID 5008 wrote to memory of 3324 5008 wscript.exe 86 PID 3324 wrote to memory of 1212 3324 wscript.exe 87 PID 3324 wrote to memory of 1212 3324 wscript.exe 87
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\COMPLAINT.pdf.js1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5008 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\SShWrokJru.js"2⤵
- Blocklisted process makes network request
- Drops startup file
PID:1036
-
-
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\COMPLAINT.pdf.js"2⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3324 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\SShWrokJru.js"3⤵
- Blocklisted process makes network request
- Drops startup file
PID:1212
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\COMPLAINT.pdf.js
- Size 46KB
- SHA256 9f6e297dd86de88825487549c0f25f02c10138b57b1b955034995615c58a13d2
- MD5 56d85e623a701f4142a111275fbbc4f5
- SHA1 51a35029e972c33d4ca4b835f00ab3a5a0469b9b
- SHA512 a75b846f4e8c1880f925ab295e972cf2f5aeb14f48bb6b849432853d4d1d487535f3632388fb5033b61570f8eda59d7623d0cf02f99a7d8dbccedd2e4c79956e
- SSDEEP 768:7Vn42jDFXsoL7DkiZNsS83FmspAlaxuZDdiovlA2kBqV160Sa0mBSSLtdG:7Vn3jOK7DjZTyBil2wDdiovS660SakSi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\COMPLAINT.pdf.js
- Size 46KB
- SHA256 9f6e297dd86de88825487549c0f25f02c10138b57b1b955034995615c58a13d2
- MD5 56d85e623a701f4142a111275fbbc4f5
- SHA1 51a35029e972c33d4ca4b835f00ab3a5a0469b9b
- SHA512 a75b846f4e8c1880f925ab295e972cf2f5aeb14f48bb6b849432853d4d1d487535f3632388fb5033b61570f8eda59d7623d0cf02f99a7d8dbccedd2e4c79956e
- SSDEEP 768:7Vn42jDFXsoL7DkiZNsS83FmspAlaxuZDdiovlA2kBqV160Sa0mBSSLtdG:7Vn3jOK7DjZTyBil2wDdiovS660SakSi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SShWrokJru.js
- Size 8KB
- SHA256 775e70946b221f699fd762167e033a487030bd1200e3062d74ddf4f8f288329b
- MD5 fe336640086b91731a9486f8d777bdab
- SHA1 3f2e7924c2223490208b2f103029510261ecefef
- SHA512 0a85088d5f4efba18de3b2df27dd1879be4573fe741ba054fdd070d9e4c720a1c96c1b26ffa53f2d363ab310df3b04ae6f77ee203cb23119f4c63ab8898e9f4f
- SSDEEP 192:ynWPULgT8WJ/8cgfIZN+s6RkMHB5GSvIxoGK3M4tNG:8W1TFJ/bZUJkMHbGSLtxtNG
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\SShWrokJru.js
- Size 8KB
- SHA256 775e70946b221f699fd762167e033a487030bd1200e3062d74ddf4f8f288329b
- MD5 fe336640086b91731a9486f8d777bdab
- SHA1 3f2e7924c2223490208b2f103029510261ecefef
- SHA512 0a85088d5f4efba18de3b2df27dd1879be4573fe741ba054fdd070d9e4c720a1c96c1b26ffa53f2d363ab310df3b04ae6f77ee203cb23119f4c63ab8898e9f4f
- SSDEEP 192:ynWPULgT8WJ/8cgfIZN+s6RkMHB5GSvIxoGK3M4tNG:8W1TFJ/bZUJkMHbGSLtxtNG
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\SShWrokJru.js
- Size 8KB
- SHA256 775e70946b221f699fd762167e033a487030bd1200e3062d74ddf4f8f288329b
- MD5 fe336640086b91731a9486f8d777bdab
- SHA1 3f2e7924c2223490208b2f103029510261ecefef
- SHA512 0a85088d5f4efba18de3b2df27dd1879be4573fe741ba054fdd070d9e4c720a1c96c1b26ffa53f2d363ab310df3b04ae6f77ee203cb23119f4c63ab8898e9f4f
- SSDEEP 192:ynWPULgT8WJ/8cgfIZN+s6RkMHB5GSvIxoGK3M4tNG:8W1TFJ/bZUJkMHbGSLtxtNG
- MD5 SHA1 SHA512 SSDEEP