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Analysis
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max time kernel
146s -
max time network
147s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
03/12/2022, 03:23
Static task
static1
Behavioral task
behavioral1
Sample
3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe
Resource
win10-20220812-en
General
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Target
3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe
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Size
851KB
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MD5
b713e710ad1b504fc1f80424c96ee9b3
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SHA1
c055462def35a1375cfba2c5cb6920c3149444dd
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SHA256
3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f
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SHA512
d8eab48fd0d317114a90dde80892e81a6308963915e0d448c46c44fe5623714d55a46eca58f0bdc363bf6e5b0a4248ae087a43deb09d80368ee89cb8d09b8f7a
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SSDEEP
12288:ryuGhRe2/vW6ZZTm6ZjxPA95QAhvvx2U6GKncJBsQiM1Wf875W6zK5HUwRwZ:ryuQe2W0T7Ni5BB76jncJ+JM7W5HU8
Malware Config
Extracted
djvu
http://fresherlights.com/test1/get.php
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extension
.uyro
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offline_id
HtkmULXEgJoZa495hFUJlvKCD0OwnxklbkoITjt1
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payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
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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
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profile_id
517
Signatures
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Detected Djvu ransomware 9 IoCs
resource yara_rule behavioral1/memory/3900-132-0x0000000000A70000-0x0000000000B8B000-memory.dmp family_djvu behavioral1/memory/3676-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3676-148-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/3676-154-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3676-193-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3676-232-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4764-259-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/4764-312-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4764-373-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Downloads MZ/PE file
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Executes dropped EXE 4 IoCs
pid Process 1092 build2.exe 1540 build2.exe 1616 build3.exe 4736 mstsca.exe -
Loads dropped DLL 2 IoCs
pid Process 1540 build2.exe 1540 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4524 icacls.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3c6446f8-bc2f-49c4-a7e2-33ef4a052040\\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe\" --AutoStart" 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 3 api.2ip.ua 7 api.2ip.ua 8 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3900 set thread context of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 4832 set thread context of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 1092 set thread context of 1540 1092 build2.exe 72 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3440 schtasks.exe 3052 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2696 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3676 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 3676 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 4764 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 4764 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 1540 build2.exe 1540 build2.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3900 wrote to memory of 3676 3900 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 66 PID 3676 wrote to memory of 4524 3676 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 67 PID 3676 wrote to memory of 4524 3676 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 67 PID 3676 wrote to memory of 4524 3676 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 67 PID 3676 wrote to memory of 4832 3676 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 68 PID 3676 wrote to memory of 4832 3676 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 68 PID 3676 wrote to memory of 4832 3676 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 68 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4832 wrote to memory of 4764 4832 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 70 PID 4764 wrote to memory of 1092 4764 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 71 PID 4764 wrote to memory of 1092 4764 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 71 PID 4764 wrote to memory of 1092 4764 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 71 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 1092 wrote to memory of 1540 1092 build2.exe 72 PID 4764 wrote to memory of 1616 4764 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 73 PID 4764 wrote to memory of 1616 4764 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 73 PID 4764 wrote to memory of 1616 4764 3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe 73 PID 1616 wrote to memory of 3440 1616 build3.exe 74 PID 1616 wrote to memory of 3440 1616 build3.exe 74 PID 1616 wrote to memory of 3440 1616 build3.exe 74 PID 1540 wrote to memory of 2836 1540 build2.exe 76 PID 1540 wrote to memory of 2836 1540 build2.exe 76 PID 1540 wrote to memory of 2836 1540 build2.exe 76 PID 2836 wrote to memory of 2696 2836 cmd.exe 78 PID 2836 wrote to memory of 2696 2836 cmd.exe 78 PID 2836 wrote to memory of 2696 2836 cmd.exe 78 PID 4736 wrote to memory of 3052 4736 mstsca.exe 80 PID 4736 wrote to memory of 3052 4736 mstsca.exe 80 PID 4736 wrote to memory of 3052 4736 mstsca.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe"C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe"C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3676 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\3c6446f8-bc2f-49c4-a7e2-33ef4a052040" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4524
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C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe"C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4832 -
C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe"C:\Users\Admin\AppData\Local\Temp\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe"C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe"C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1540 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:2836 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:2696
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C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build3.exe"C:\Users\Admin\AppData\Local\4ccf8be3-83fe-4e0f-afa4-c46e1dcdd272\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1616 -
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:3440
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4736 -
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"2⤵
- Creates scheduled task(s)
PID:3052
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\3c6446f8-bc2f-49c4-a7e2-33ef4a052040\3de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f.exe
Filesize851KB
MD5b713e710ad1b504fc1f80424c96ee9b3
SHA1c055462def35a1375cfba2c5cb6920c3149444dd
SHA2563de1cde45d137ffb72875b404205364989a08e68bc653ef0e8c67cdccd35440f
SHA512d8eab48fd0d317114a90dde80892e81a6308963915e0d448c46c44fe5623714d55a46eca58f0bdc363bf6e5b0a4248ae087a43deb09d80368ee89cb8d09b8f7a
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571