Analysis
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max time kernel
71s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
24/09/2022, 08:24
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
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Target
file.exe
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Size
715KB
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MD5
a7758558b4b7cc054abceff13adab239
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SHA1
971192ff22f27861738bb90255a075c7e7c66d48
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SHA256
cca18e1650fa82f0233dbf8a897793d3e5f8d258d4ce76e7915c63cc5efcabb0
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SHA512
354a67af02df29e35e6a9547f88dcd8ac82ce9640f6675ba0f0a540de92940f409014cf3095d96b4a3d025479d4d6ce3961134e51e11dbe69b541d8786516070
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SSDEEP
12288:q5ld/CHz3WbTMehxSNz1olkgcgAwASHoVpZpSwJEEVPqKXgx2sU01u1r:OdaTiMehxaEcgAzyoVprS1EdqBpU01u
Malware Config
Extracted
djvu
http://winnlinne.com/test3/get.php
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extension
.ofoq
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offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
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payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.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-EWKSsSJiVn 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: 0568Jhyjd
Extracted
vidar
54.6
517
https://t.me/huobiinside
https://mas.to/@kyriazhs1975
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profile_id
517
Signatures
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Detected Djvu ransomware 10 IoCs
resource yara_rule behavioral2/memory/4308-133-0x0000000002430000-0x000000000254B000-memory.dmp family_djvu behavioral2/memory/5052-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5052-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5052-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5052-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/5052-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4264-146-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4264-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4264-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4264-191-0x0000000000400000-0x0000000000537000-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 2444 build2.exe 3140 build2.exe 1748 build3.exe 2124 mstsca.exe -
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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation build2.exe -
Loads dropped DLL 2 IoCs
pid Process 3140 build2.exe 3140 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4156 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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2619459b-22c8-4a52-a0f8-7209ffdc54d6\\file.exe\" --AutoStart" file.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 5 api.2ip.ua 6 api.2ip.ua 17 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4308 set thread context of 5052 4308 file.exe 82 PID 1988 set thread context of 4264 1988 file.exe 86 PID 2444 set thread context of 3140 2444 build2.exe 92 -
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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 2164 schtasks.exe 2292 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4620 timeout.exe -
Kills process with taskkill 1 IoCs
pid Process 3796 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 5052 file.exe 5052 file.exe 4264 file.exe 4264 file.exe 3140 build2.exe 3140 build2.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3796 taskkill.exe -
Suspicious use of WriteProcessMemory 56 IoCs
description pid Process procid_target PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 4308 wrote to memory of 5052 4308 file.exe 82 PID 5052 wrote to memory of 4156 5052 file.exe 83 PID 5052 wrote to memory of 4156 5052 file.exe 83 PID 5052 wrote to memory of 4156 5052 file.exe 83 PID 5052 wrote to memory of 1988 5052 file.exe 84 PID 5052 wrote to memory of 1988 5052 file.exe 84 PID 5052 wrote to memory of 1988 5052 file.exe 84 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 1988 wrote to memory of 4264 1988 file.exe 86 PID 4264 wrote to memory of 2444 4264 file.exe 90 PID 4264 wrote to memory of 2444 4264 file.exe 90 PID 4264 wrote to memory of 2444 4264 file.exe 90 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 2444 wrote to memory of 3140 2444 build2.exe 92 PID 4264 wrote to memory of 1748 4264 file.exe 93 PID 4264 wrote to memory of 1748 4264 file.exe 93 PID 4264 wrote to memory of 1748 4264 file.exe 93 PID 1748 wrote to memory of 2292 1748 build3.exe 94 PID 1748 wrote to memory of 2292 1748 build3.exe 94 PID 1748 wrote to memory of 2292 1748 build3.exe 94 PID 3140 wrote to memory of 4632 3140 build2.exe 98 PID 3140 wrote to memory of 4632 3140 build2.exe 98 PID 3140 wrote to memory of 4632 3140 build2.exe 98 PID 4632 wrote to memory of 3796 4632 cmd.exe 100 PID 4632 wrote to memory of 3796 4632 cmd.exe 100 PID 4632 wrote to memory of 3796 4632 cmd.exe 100 PID 4632 wrote to memory of 4620 4632 cmd.exe 101 PID 4632 wrote to memory of 4620 4632 cmd.exe 101 PID 4632 wrote to memory of 4620 4632 cmd.exe 101 PID 2124 wrote to memory of 2164 2124 mstsca.exe 104 PID 2124 wrote to memory of 2164 2124 mstsca.exe 104 PID 2124 wrote to memory of 2164 2124 mstsca.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4308 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\2619459b-22c8-4a52-a0f8-7209ffdc54d6" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4156
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4264 -
C:\Users\Admin\AppData\Local\0a94ce1d-d2f7-4d3b-af02-0b967325f919\build2.exe"C:\Users\Admin\AppData\Local\0a94ce1d-d2f7-4d3b-af02-0b967325f919\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2444 -
C:\Users\Admin\AppData\Local\0a94ce1d-d2f7-4d3b-af02-0b967325f919\build2.exe"C:\Users\Admin\AppData\Local\0a94ce1d-d2f7-4d3b-af02-0b967325f919\build2.exe"6⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3140 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" \/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\0a94ce1d-d2f7-4d3b-af02-0b967325f919\build2.exe" & del C:\PrograData\*.dll & exit7⤵
- Suspicious use of WriteProcessMemory
PID:4632 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im build2.exe /f8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3796
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C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:4620
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C:\Users\Admin\AppData\Local\0a94ce1d-d2f7-4d3b-af02-0b967325f919\build3.exe"C:\Users\Admin\AppData\Local\0a94ce1d-d2f7-4d3b-af02-0b967325f919\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1748 -
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:2292
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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:2124 -
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:2164
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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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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD532958182234a80a5b2589418864f6117
SHA1598276140fd27d8931dbe02625e3378ad9085b8d
SHA256a6f4c0928ecef1052acb557bf148d4d06206afaa0d334d30ef676d8b4b89fdb2
SHA51204157e1f291fb8e11e8134fa321d6473ff7ed55c7848170ac9c6db4dd9e42d8303c40746ce56f4112f26c5ea730703ad00fa52fdf57377c81221473210e49dfa
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD50d870ca424457579d4bd345ac1ec6c3c
SHA1fc3d8924e13b4fc5eca7cabd4967eea3d4db1690
SHA256cf9df8d62ec78ca20a50633047af6c913dc2d10f15823795e8d86042c7b05ed0
SHA512a1e731ae03b1a2259f8e1afc86058aabb3b8ce3b0141f08ea18b6c7003c55aeb135d40bba38ebf1f76174eb1ad758fbec10841dee1ed704fb0285e36b2f7d66b
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD5f6253b0359e5876812d162d2f9b593ba
SHA12f402c64441928797b5f6e693a0d845373af5f28
SHA256ef17ddee4321e2153fabb406c2a95c238e9a368547e7c1974bcfefeef6635e31
SHA5127b61267293c8f69d1bf291076f7ca038de7d3323b77aeed69a346794f1b40b608e4d1804011a3b87f2778a947e1e82ef80c7311e4db09a5ec0fc2d56c4759ecc
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD53302ac7aa1c1c290f5be30f9e1606ffb
SHA1f3b10c5d1c548cf775f6de7ac959349788bbecd7
SHA256adccc2df9c6bb23b0247358140f9b63633c6d7fc314081c71e0e3109be90fbda
SHA5129b0e84769cd8d4b276f532f7ffbf90d0d0c3fce6b21b299d3cd4912ef72675e2eb7f058cae212b86d975b54bef4ea3fe46095023762457dba7d558ec489ec5a8
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Filesize
246KB
MD54e08ecaa075b90f30327bf200d23130b
SHA1f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2
SHA2566c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47
SHA512e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7
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Filesize
246KB
MD54e08ecaa075b90f30327bf200d23130b
SHA1f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2
SHA2566c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47
SHA512e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7
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Filesize
246KB
MD54e08ecaa075b90f30327bf200d23130b
SHA1f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2
SHA2566c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47
SHA512e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7
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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
715KB
MD5a7758558b4b7cc054abceff13adab239
SHA1971192ff22f27861738bb90255a075c7e7c66d48
SHA256cca18e1650fa82f0233dbf8a897793d3e5f8d258d4ce76e7915c63cc5efcabb0
SHA512354a67af02df29e35e6a9547f88dcd8ac82ce9640f6675ba0f0a540de92940f409014cf3095d96b4a3d025479d4d6ce3961134e51e11dbe69b541d8786516070
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a