Analysis
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max time kernel
144s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
24/03/2023, 01:02
Static task
static1
Behavioral task
behavioral1
Sample
setup.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
setup.exe
Resource
win10v2004-20230220-en
General
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Target
setup.exe
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Size
749KB
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MD5
35071e98c42d2bc2749824ee92089e44
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SHA1
579c84d2efb62ee087d7df29a05fcf17278c4896
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SHA256
38c4970c7f338a44d531efbff4737bac904c9ea1720b31f07ed2f70ad8b0ad27
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SHA512
96b24a31647f1a8063184266aa373742b689abcef4ef749ef24b03ddc8d2ed5aa4bfad69712e44fcfeadef330bbbcc89ff60df3fa51e4f7ddaac95956a0f10d5
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SSDEEP
12288:xK4pRv/Kn5DAeCroGEpEpD6ZHT9DXd1srcYldZ/oiMBJYPC/W+yu:/7/Kn5UepDpaAT9DXRYlQBI6y
Malware Config
Extracted
djvu
http://zexeq.com/test2/get.php
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extension
.tywd
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offline_id
Yao2o6f5vNghOpgVBhEIA8O96SC5vLcgITgaRMt1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.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-f8UEvx4T0A 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: 0671IsjO
Extracted
vidar
3.1
00d92484c9b27bc8482a2cc94cacc508
https://steamcommunity.com/profiles/76561199472266392
https://t.me/tabootalks
http://135.181.26.183:80
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profile_id_v2
00d92484c9b27bc8482a2cc94cacc508
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user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79
Signatures
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Detected Djvu ransomware 16 IoCs
resource yara_rule behavioral2/memory/1944-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1944-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2448-135-0x0000000002220000-0x000000000233B000-memory.dmp family_djvu behavioral2/memory/1944-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1944-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1944-148-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-151-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-153-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-156-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-157-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-164-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-166-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-169-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-190-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2700-278-0x0000000000400000-0x0000000000537000-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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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation build2.exe Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation setup.exe Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation setup.exe -
Executes dropped EXE 4 IoCs
pid Process 3900 build2.exe 4456 build2.exe 4944 build3.exe 3096 mstsca.exe -
Loads dropped DLL 2 IoCs
pid Process 4456 build2.exe 4456 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1664 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-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7e8b7e8d-597d-4de7-8998-7431facfb249\\setup.exe\" --AutoStart" setup.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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 16 api.2ip.ua 17 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2448 set thread context of 1944 2448 setup.exe 86 PID 4996 set thread context of 2700 4996 setup.exe 90 PID 3900 set thread context of 4456 3900 build2.exe 98 -
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 1388 schtasks.exe 968 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 1524 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1944 setup.exe 1944 setup.exe 2700 setup.exe 2700 setup.exe 4456 build2.exe 4456 build2.exe -
Suspicious use of WriteProcessMemory 53 IoCs
description pid Process procid_target PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 2448 wrote to memory of 1944 2448 setup.exe 86 PID 1944 wrote to memory of 1664 1944 setup.exe 87 PID 1944 wrote to memory of 1664 1944 setup.exe 87 PID 1944 wrote to memory of 1664 1944 setup.exe 87 PID 1944 wrote to memory of 4996 1944 setup.exe 88 PID 1944 wrote to memory of 4996 1944 setup.exe 88 PID 1944 wrote to memory of 4996 1944 setup.exe 88 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 4996 wrote to memory of 2700 4996 setup.exe 90 PID 2700 wrote to memory of 3900 2700 setup.exe 97 PID 2700 wrote to memory of 3900 2700 setup.exe 97 PID 2700 wrote to memory of 3900 2700 setup.exe 97 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 3900 wrote to memory of 4456 3900 build2.exe 98 PID 2700 wrote to memory of 4944 2700 setup.exe 99 PID 2700 wrote to memory of 4944 2700 setup.exe 99 PID 2700 wrote to memory of 4944 2700 setup.exe 99 PID 4944 wrote to memory of 1388 4944 build3.exe 100 PID 4944 wrote to memory of 1388 4944 build3.exe 100 PID 4944 wrote to memory of 1388 4944 build3.exe 100 PID 4456 wrote to memory of 2204 4456 build2.exe 103 PID 4456 wrote to memory of 2204 4456 build2.exe 103 PID 4456 wrote to memory of 2204 4456 build2.exe 103 PID 2204 wrote to memory of 1524 2204 cmd.exe 105 PID 2204 wrote to memory of 1524 2204 cmd.exe 105 PID 2204 wrote to memory of 1524 2204 cmd.exe 105 PID 3096 wrote to memory of 968 3096 mstsca.exe 108 PID 3096 wrote to memory of 968 3096 mstsca.exe 108 PID 3096 wrote to memory of 968 3096 mstsca.exe 108
Processes
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C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2448 -
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1944 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\7e8b7e8d-597d-4de7-8998-7431facfb249" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1664
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C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4996 -
C:\Users\Admin\AppData\Local\Temp\setup.exe"C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Users\Admin\AppData\Local\2d09e4af-9fab-4e9c-b0d9-ec6f3fe41c8b\build2.exe"C:\Users\Admin\AppData\Local\2d09e4af-9fab-4e9c-b0d9-ec6f3fe41c8b\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Users\Admin\AppData\Local\2d09e4af-9fab-4e9c-b0d9-ec6f3fe41c8b\build2.exe"C:\Users\Admin\AppData\Local\2d09e4af-9fab-4e9c-b0d9-ec6f3fe41c8b\build2.exe"6⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4456 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\2d09e4af-9fab-4e9c-b0d9-ec6f3fe41c8b\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:2204 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:1524
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C:\Users\Admin\AppData\Local\2d09e4af-9fab-4e9c-b0d9-ec6f3fe41c8b\build3.exe"C:\Users\Admin\AppData\Local\2d09e4af-9fab-4e9c-b0d9-ec6f3fe41c8b\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4944 -
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:1388
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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:3096 -
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:968
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
299KB
MD56b343cd7dea3ae28d0819bc55a2f86fe
SHA1cedd49849a5dd678d0a55da607e9b28a9680073c
SHA2564240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49
SHA5127c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48
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Filesize
299KB
MD56b343cd7dea3ae28d0819bc55a2f86fe
SHA1cedd49849a5dd678d0a55da607e9b28a9680073c
SHA2564240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49
SHA5127c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48
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Filesize
299KB
MD56b343cd7dea3ae28d0819bc55a2f86fe
SHA1cedd49849a5dd678d0a55da607e9b28a9680073c
SHA2564240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49
SHA5127c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48
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Filesize
299KB
MD56b343cd7dea3ae28d0819bc55a2f86fe
SHA1cedd49849a5dd678d0a55da607e9b28a9680073c
SHA2564240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49
SHA5127c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48
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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
749KB
MD535071e98c42d2bc2749824ee92089e44
SHA1579c84d2efb62ee087d7df29a05fcf17278c4896
SHA25638c4970c7f338a44d531efbff4737bac904c9ea1720b31f07ed2f70ad8b0ad27
SHA51296b24a31647f1a8063184266aa373742b689abcef4ef749ef24b03ddc8d2ed5aa4bfad69712e44fcfeadef330bbbcc89ff60df3fa51e4f7ddaac95956a0f10d5
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a