Analysis
-
max time kernel
213s -
max time network
252s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
30-11-2022 22:54
Static task
static1
Behavioral task
behavioral1
Sample
875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe
Resource
win10v2004-20221111-en
General
-
Target
875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe
-
Size
703KB
-
MD5
9f86d39cef8f2d55ee153628c599f125
-
SHA1
ffcca079744b576dec190e17f8a96f6283875729
-
SHA256
875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9
-
SHA512
204d27e878e9a7509b4f40ab55fd6bca1fbe989f9b85a21429008f48cf57c8c1730387667e5affaf3a48c25db69c3f0aabf5d9d4f1d963e39343cfb1cf884b72
-
SSDEEP
12288:qMn69uipdd3heOMUL41WlMemFG0gR2jBjR8LOX6mtVjlJDOzoUOvD6uRrb:baXpteniUEVLOKaVpxOzo9b6
Malware Config
Extracted
djvu
http://fresherlights.com/test1/get.php
-
extension
.uyro
-
offline_id
HtkmULXEgJoZa495hFUJlvKCD0OwnxklbkoITjt1
-
payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
-
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-5UcwRdS3ED Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0609djfsieE
Extracted
vidar
56
517
https://t.me/asifrazatg
https://steamcommunity.com/profiles/76561199439929669
-
profile_id
517
Signatures
-
Detected Djvu ransomware 9 IoCs
Processes:
resource yara_rule behavioral1/memory/1604-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1604-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3420-136-0x0000000002220000-0x000000000233B000-memory.dmp family_djvu behavioral1/memory/1604-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1604-139-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1604-143-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4476-148-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4476-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4476-150-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Downloads MZ/PE file
-
Executes dropped EXE 3 IoCs
Processes:
build2.exebuild2.exebuild3.exepid process 1336 build2.exe 2264 build2.exe 1864 build3.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe -
Modifies file permissions 1 TTPs 1 IoCs
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\46c1b46b-5647-4f7e-9f55-dec02a9aa7f4\\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe\" --AutoStart" 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 34 api.2ip.ua 53 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
Processes:
875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exebuild2.exedescription pid process target process PID 3420 set thread context of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 set thread context of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 1336 set thread context of 2264 1336 build2.exe build2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exepid process 1604 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 1604 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 4476 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 4476 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe -
Suspicious use of WriteProcessMemory 44 IoCs
Processes:
875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exebuild2.exebuild3.exedescription pid process target process PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3420 wrote to memory of 1604 3420 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 1604 wrote to memory of 4880 1604 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe icacls.exe PID 1604 wrote to memory of 4880 1604 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe icacls.exe PID 1604 wrote to memory of 4880 1604 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe icacls.exe PID 1604 wrote to memory of 3236 1604 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 1604 wrote to memory of 3236 1604 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 1604 wrote to memory of 3236 1604 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 3236 wrote to memory of 4476 3236 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe PID 4476 wrote to memory of 1336 4476 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe build2.exe PID 4476 wrote to memory of 1336 4476 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe build2.exe PID 4476 wrote to memory of 1336 4476 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 1336 wrote to memory of 2264 1336 build2.exe build2.exe PID 4476 wrote to memory of 1864 4476 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe build3.exe PID 4476 wrote to memory of 1864 4476 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe build3.exe PID 4476 wrote to memory of 1864 4476 875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe build3.exe PID 1864 wrote to memory of 4396 1864 build3.exe schtasks.exe PID 1864 wrote to memory of 4396 1864 build3.exe schtasks.exe PID 1864 wrote to memory of 4396 1864 build3.exe schtasks.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe"C:\Users\Admin\AppData\Local\Temp\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3420 -
C:\Users\Admin\AppData\Local\Temp\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe"C:\Users\Admin\AppData\Local\Temp\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1604 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\46c1b46b-5647-4f7e-9f55-dec02a9aa7f4" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4880 -
C:\Users\Admin\AppData\Local\Temp\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe"C:\Users\Admin\AppData\Local\Temp\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3236 -
C:\Users\Admin\AppData\Local\Temp\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe"C:\Users\Admin\AppData\Local\Temp\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4476 -
C:\Users\Admin\AppData\Local\f06bf8ac-d9b1-420f-a6cc-88dccaee6418\build2.exe"C:\Users\Admin\AppData\Local\f06bf8ac-d9b1-420f-a6cc-88dccaee6418\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1336 -
C:\Users\Admin\AppData\Local\f06bf8ac-d9b1-420f-a6cc-88dccaee6418\build2.exe"C:\Users\Admin\AppData\Local\f06bf8ac-d9b1-420f-a6cc-88dccaee6418\build2.exe"6⤵
- Executes dropped EXE
PID:2264 -
C:\Users\Admin\AppData\Local\f06bf8ac-d9b1-420f-a6cc-88dccaee6418\build3.exe"C:\Users\Admin\AppData\Local\f06bf8ac-d9b1-420f-a6cc-88dccaee6418\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1864 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
PID:4396
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\46c1b46b-5647-4f7e-9f55-dec02a9aa7f4\875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9.exe
Filesize703KB
MD59f86d39cef8f2d55ee153628c599f125
SHA1ffcca079744b576dec190e17f8a96f6283875729
SHA256875eb3cbcaa92db668777dc133f67fe99d988a96668e12b04583633553a670b9
SHA512204d27e878e9a7509b4f40ab55fd6bca1fbe989f9b85a21429008f48cf57c8c1730387667e5affaf3a48c25db69c3f0aabf5d9d4f1d963e39343cfb1cf884b72
-
Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
-
Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
-
Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
-
Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
-
Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a