Analysis
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max time kernel
77s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
25-09-2022 19:51
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
General
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Target
file.exe
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Size
721KB
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MD5
0c3ca17de30d2e37d0910a1b1eceb179
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SHA1
0564dd7295e9c0df26af52e8865082113901fd43
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SHA256
24fd32811567e6c0e30b1f2b5efbe8137e3f12f22c23aede9d10b1e365119a13
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SHA512
fb610af5a70be1bdf4fe99c9915595f920b8d676764701a709ec830fb4342e3bcd3a50ecf79e9bd1ae5f0fccc8927b4e5c32f749306927c194d8f08db8bdeb9d
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SSDEEP
12288:i7YkeWXzwUB0jK3ZlcGMGVVAc4d2IJILbfmOgvKCJ5YHsOrSsrw0DLYqu7KevkA:i7Yk9s5+337xAP2Ie2OgvJS1esrTwquY
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/4076-133-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4076-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4076-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1648-135-0x0000000002460000-0x000000000257B000-memory.dmp family_djvu behavioral2/memory/4076-140-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4076-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3840-145-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3840-146-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3840-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3840-188-0x0000000000400000-0x0000000000537000-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 4276 build2.exe 4964 build3.exe 3632 build2.exe 644 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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation build2.exe -
Loads dropped DLL 2 IoCs
pid Process 3632 build2.exe 3632 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2380 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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\18ce2d80-e45d-4539-8d84-11b6a71abf03\\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 17 api.2ip.ua 18 api.2ip.ua 27 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1648 set thread context of 4076 1648 file.exe 84 PID 396 set thread context of 3840 396 file.exe 92 PID 4276 set thread context of 3632 4276 build2.exe 102 -
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 2312 schtasks.exe 4068 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4552 timeout.exe -
Kills process with taskkill 1 IoCs
pid Process 2116 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4076 file.exe 4076 file.exe 3840 file.exe 3840 file.exe 3632 build2.exe 3632 build2.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2116 taskkill.exe -
Suspicious use of WriteProcessMemory 56 IoCs
description pid Process procid_target PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 1648 wrote to memory of 4076 1648 file.exe 84 PID 4076 wrote to memory of 2380 4076 file.exe 85 PID 4076 wrote to memory of 2380 4076 file.exe 85 PID 4076 wrote to memory of 2380 4076 file.exe 85 PID 4076 wrote to memory of 396 4076 file.exe 88 PID 4076 wrote to memory of 396 4076 file.exe 88 PID 4076 wrote to memory of 396 4076 file.exe 88 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 396 wrote to memory of 3840 396 file.exe 92 PID 3840 wrote to memory of 4276 3840 file.exe 97 PID 3840 wrote to memory of 4276 3840 file.exe 97 PID 3840 wrote to memory of 4276 3840 file.exe 97 PID 3840 wrote to memory of 4964 3840 file.exe 99 PID 3840 wrote to memory of 4964 3840 file.exe 99 PID 3840 wrote to memory of 4964 3840 file.exe 99 PID 4964 wrote to memory of 2312 4964 build3.exe 100 PID 4964 wrote to memory of 2312 4964 build3.exe 100 PID 4964 wrote to memory of 2312 4964 build3.exe 100 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 4276 wrote to memory of 3632 4276 build2.exe 102 PID 3632 wrote to memory of 3176 3632 build2.exe 105 PID 3632 wrote to memory of 3176 3632 build2.exe 105 PID 3632 wrote to memory of 3176 3632 build2.exe 105 PID 3176 wrote to memory of 2116 3176 cmd.exe 107 PID 3176 wrote to memory of 2116 3176 cmd.exe 107 PID 3176 wrote to memory of 2116 3176 cmd.exe 107 PID 3176 wrote to memory of 4552 3176 cmd.exe 108 PID 3176 wrote to memory of 4552 3176 cmd.exe 108 PID 3176 wrote to memory of 4552 3176 cmd.exe 108 PID 644 wrote to memory of 4068 644 mstsca.exe 112 PID 644 wrote to memory of 4068 644 mstsca.exe 112 PID 644 wrote to memory of 4068 644 mstsca.exe 112
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:1648 -
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:4076 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\18ce2d80-e45d-4539-8d84-11b6a71abf03" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2380
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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:396 -
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:3840 -
C:\Users\Admin\AppData\Local\d7698652-6c56-4218-a4d1-efb7311b2524\build2.exe"C:\Users\Admin\AppData\Local\d7698652-6c56-4218-a4d1-efb7311b2524\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4276 -
C:\Users\Admin\AppData\Local\d7698652-6c56-4218-a4d1-efb7311b2524\build2.exe"C:\Users\Admin\AppData\Local\d7698652-6c56-4218-a4d1-efb7311b2524\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:3632 -
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\d7698652-6c56-4218-a4d1-efb7311b2524\build2.exe" & del C:\PrograData\*.dll & exit7⤵
- Suspicious use of WriteProcessMemory
PID:3176 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im build2.exe /f8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2116
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C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:4552
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C:\Users\Admin\AppData\Local\d7698652-6c56-4218-a4d1-efb7311b2524\build3.exe"C:\Users\Admin\AppData\Local\d7698652-6c56-4218-a4d1-efb7311b2524\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4964 -
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:2312
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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:644 -
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:4068
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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
MD53229b6929fc9caec79e3e5ad740250c6
SHA1d677cb89c767b4c4a444fedfa53dd6c8aa1d7d6e
SHA256ece826b5b4484d173ea804773ca9a13c7248d2f6f3c8a7efeea2a9e3691d7628
SHA51279b5ab3c41f03f913c0c947c6b6c66f396af97f7f69b3df72622beb9fddf8c6cc1a4f830d3edbd91ec570ce59531f09db54e51a2694a8b330ded69fd932036d1
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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
MD5c2f478cb57bf62b6577da856c285b0ab
SHA182f2641c409a58b73434d1d3dd5d82313cdcd4e6
SHA256708c23724a2ff843057f6a63a0e55eb18a9d921cce42b5cfffbe324215d1e1f3
SHA51280674bbdc5d679bb4ad2e86f8090fdf08cd3f5b6bbeec03806c7cea3ade37614b4e3922477e23fbd5daa09b5820715d9f33ef735574a636f66a09050be355910
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5d63cf53c94d4ce4d96e4f32445c09e41
SHA1dfb9e9497d114b38a97650cc2ed3fa4a51a9f99b
SHA256b5b7ee224b704825091a4262a3272e39f2b6190c8992f7e8fb5a416104e204b8
SHA51298576b92183e90898a85a1c8e6a83fc68581931935ec6833154aed04fb78b247a9ac98bdbd329fb3bd8f779c5def54243e1c710304bde5e67ee6d9a79f504d35
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Filesize
721KB
MD50c3ca17de30d2e37d0910a1b1eceb179
SHA10564dd7295e9c0df26af52e8865082113901fd43
SHA25624fd32811567e6c0e30b1f2b5efbe8137e3f12f22c23aede9d10b1e365119a13
SHA512fb610af5a70be1bdf4fe99c9915595f920b8d676764701a709ec830fb4342e3bcd3a50ecf79e9bd1ae5f0fccc8927b4e5c32f749306927c194d8f08db8bdeb9d
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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
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a