Analysis
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max time kernel
75s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26/09/2022, 10:22
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
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Target
file.exe
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Size
671KB
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MD5
79df4998ec5df3f2eef6ecb9ac73af7b
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SHA1
4b443e54cfe6e92ba1aed66ec896521981a5aad6
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SHA256
9c711dad2a2363a5cd8b58421ad2cdd7228a31ca0d85f4516be3c4d2ec55b316
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SHA512
3b5496b88f9daab8a6a437f80476f925f9aade66b96429bfb21b29b7f47b29fe0941ef54bacba699f6dd8ccb64e9ffd7c3ee97184a6b2ce06446e004474d101b
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SSDEEP
12288:lAcvIBUT+QqoiPvnFmYZfXFX8E9kkeLzm+CKrN34kXmnjL9X6QG:Kcv0MD3aFmYf0Lzm+X34Znj
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/1176-133-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1176-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4984-136-0x00000000023F0000-0x000000000250B000-memory.dmp family_djvu behavioral2/memory/1176-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1176-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1176-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4356-145-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4356-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4356-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4356-192-0x0000000000400000-0x0000000000537000-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 3752 build2.exe 4992 build3.exe 3372 build2.exe 4784 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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation build2.exe -
Loads dropped DLL 2 IoCs
pid Process 3372 build2.exe 3372 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 472 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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f3609447-5a55-487e-8bee-3a5acde04e9c\\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 14 api.2ip.ua 15 api.2ip.ua 26 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4984 set thread context of 1176 4984 file.exe 82 PID 2796 set thread context of 4356 2796 file.exe 89 PID 3752 set thread context of 3372 3752 build2.exe 95 -
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 3968 schtasks.exe 2440 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2020 timeout.exe -
Kills process with taskkill 1 IoCs
pid Process 5060 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1176 file.exe 1176 file.exe 4356 file.exe 4356 file.exe 3372 build2.exe 3372 build2.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5060 taskkill.exe -
Suspicious use of WriteProcessMemory 56 IoCs
description pid Process procid_target PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 4984 wrote to memory of 1176 4984 file.exe 82 PID 1176 wrote to memory of 472 1176 file.exe 85 PID 1176 wrote to memory of 472 1176 file.exe 85 PID 1176 wrote to memory of 472 1176 file.exe 85 PID 1176 wrote to memory of 2796 1176 file.exe 86 PID 1176 wrote to memory of 2796 1176 file.exe 86 PID 1176 wrote to memory of 2796 1176 file.exe 86 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 2796 wrote to memory of 4356 2796 file.exe 89 PID 4356 wrote to memory of 3752 4356 file.exe 91 PID 4356 wrote to memory of 3752 4356 file.exe 91 PID 4356 wrote to memory of 3752 4356 file.exe 91 PID 4356 wrote to memory of 4992 4356 file.exe 92 PID 4356 wrote to memory of 4992 4356 file.exe 92 PID 4356 wrote to memory of 4992 4356 file.exe 92 PID 4992 wrote to memory of 3968 4992 build3.exe 93 PID 4992 wrote to memory of 3968 4992 build3.exe 93 PID 4992 wrote to memory of 3968 4992 build3.exe 93 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3752 wrote to memory of 3372 3752 build2.exe 95 PID 3372 wrote to memory of 956 3372 build2.exe 98 PID 3372 wrote to memory of 956 3372 build2.exe 98 PID 3372 wrote to memory of 956 3372 build2.exe 98 PID 956 wrote to memory of 5060 956 cmd.exe 100 PID 956 wrote to memory of 5060 956 cmd.exe 100 PID 956 wrote to memory of 5060 956 cmd.exe 100 PID 956 wrote to memory of 2020 956 cmd.exe 101 PID 956 wrote to memory of 2020 956 cmd.exe 101 PID 956 wrote to memory of 2020 956 cmd.exe 101 PID 4784 wrote to memory of 2440 4784 mstsca.exe 104 PID 4784 wrote to memory of 2440 4784 mstsca.exe 104 PID 4784 wrote to memory of 2440 4784 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:4984 -
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:1176 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\f3609447-5a55-487e-8bee-3a5acde04e9c" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:472
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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:2796 -
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:4356 -
C:\Users\Admin\AppData\Local\9fb695fc-0692-48dd-948b-84244fbee9ba\build2.exe"C:\Users\Admin\AppData\Local\9fb695fc-0692-48dd-948b-84244fbee9ba\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3752 -
C:\Users\Admin\AppData\Local\9fb695fc-0692-48dd-948b-84244fbee9ba\build2.exe"C:\Users\Admin\AppData\Local\9fb695fc-0692-48dd-948b-84244fbee9ba\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:3372 -
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\9fb695fc-0692-48dd-948b-84244fbee9ba\build2.exe" & del C:\PrograData\*.dll & exit7⤵
- Suspicious use of WriteProcessMemory
PID:956 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im build2.exe /f8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5060
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C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:2020
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C:\Users\Admin\AppData\Local\9fb695fc-0692-48dd-948b-84244fbee9ba\build3.exe"C:\Users\Admin\AppData\Local\9fb695fc-0692-48dd-948b-84244fbee9ba\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4992 -
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:3968
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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:4784 -
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:2440
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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
MD5edcd4c783b2b2c906602519bd8f697f4
SHA1fc56fded4065d6960c6507cac4264dfd2b038004
SHA256367e0ac4e24f1d1530de05a6abf81d6b572c0546b5aa134c246fa1514582fd90
SHA512cb23a82c06211121e39ed0dbec5928b1a85aca7c25f2c060d609350e3a94bf82e9159a2a4d5e67295fc29bac22c95d525ea2461a0000d24c6c4cb630520f68d0
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD572b80983f775fe9838fabd5be9637c8c
SHA131a4e4680fb8428487742c05170a89d209ef3434
SHA2564194ffc5b408f1813750b7ee8550898f5fefd74f122f1b76b796cca70aaadc3d
SHA51229a58d9d79884a43fcdcbd4645a84ed39206d5bbd0b8079b46dde52744c6d7a4c0815114aa9f3067e0b9ccba193f48e4a0d277d13ffbfc0a5fe5350d2c0305fe
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD59a604e85f04d8445272b540d6659c9ef
SHA12523b37f9f1fc08a587d5a596a49435c20f1bdf1
SHA25693e081096839513bb1a9e51476522bad9ca1cefa52df9fa7ec74f78a3b7a5bb3
SHA5125f7391ed0ff83ed2045d313cbf99cc8013b1246ee1b3f3da796e6bf3a544ac0c1546ec104e0cd793a9568ef3566fef8aa8330a61d8e80217c549d1fe6ddebccf
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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
671KB
MD579df4998ec5df3f2eef6ecb9ac73af7b
SHA14b443e54cfe6e92ba1aed66ec896521981a5aad6
SHA2569c711dad2a2363a5cd8b58421ad2cdd7228a31ca0d85f4516be3c4d2ec55b316
SHA5123b5496b88f9daab8a6a437f80476f925f9aade66b96429bfb21b29b7f47b29fe0941ef54bacba699f6dd8ccb64e9ffd7c3ee97184a6b2ce06446e004474d101b
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a