Analysis
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max time kernel
145s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
16/05/2023, 15:47
Static task
static1
Behavioral task
behavioral1
Sample
builder.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
builder.exe
Resource
win10v2004-20230220-en
General
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Target
builder.exe
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Size
770KB
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MD5
669a891fe610e110917fad79b6876f55
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SHA1
a762faa446f6a8da5770ecca619fc2cffdf33ab1
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SHA256
733d197665d90ebcbe41ed14d872db66604706d8435e694985ad2c459ce59b70
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SHA512
59e4f2c17285360286941c016a37d1f26e14bccb858e782db40488612a746199b8c30a47554d0abfd0c71a35cfb8734cb72414d02db5419289fccd667fe52298
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SSDEEP
12288:HYhoWg3wNMP0/JtiTYdmJDJtnee32UEMWOktn3dR/v2FvMI33knQCk/:HSdNMPoJEYKJweGdSKNR/vQvb30w/
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.xash
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offline_id
uK3VnHYy6oibGbO8t2PDOMcT40gQoh5oUUCe2Lt1
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payload_url
http://colisumy.com/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-otP8Wlz4eh 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: 0707JOsie
Extracted
vidar
3.9
9dfa7ee730fa2f1efb5ed51dbbec22f5
https://steamcommunity.com/profiles/76561199263069598
https://t.me/cybehost
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profile_id_v2
9dfa7ee730fa2f1efb5ed51dbbec22f5
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user_agent
Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.7 (like Gecko) (Debian)
Signatures
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Detected Djvu ransomware 16 IoCs
resource yara_rule behavioral2/memory/1228-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1228-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1228-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1940-136-0x0000000002660000-0x000000000277B000-memory.dmp family_djvu behavioral2/memory/1228-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1228-148-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-151-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-157-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-158-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-159-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-163-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-165-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-166-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-204-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4872-281-0x0000000000400000-0x0000000000537000-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 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation builder.exe Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation builder.exe -
Executes dropped EXE 4 IoCs
pid Process 4448 build2.exe 436 build2.exe 4168 build3.exe 2172 mstsca.exe -
Loads dropped DLL 2 IoCs
pid Process 436 build2.exe 436 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4968 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-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3debf21a-dd56-40af-8f5d-3d3e6ddc1ae5\\builder.exe\" --AutoStart" builder.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 16 api.2ip.ua 18 api.2ip.ua 30 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1940 set thread context of 1228 1940 builder.exe 82 PID 2596 set thread context of 4872 2596 builder.exe 86 PID 4448 set thread context of 436 4448 build2.exe 91 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 3704 schtasks.exe 4432 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1228 builder.exe 1228 builder.exe 4872 builder.exe 4872 builder.exe 436 build2.exe 436 build2.exe -
Suspicious use of WriteProcessMemory 47 IoCs
description pid Process procid_target PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1940 wrote to memory of 1228 1940 builder.exe 82 PID 1228 wrote to memory of 4968 1228 builder.exe 83 PID 1228 wrote to memory of 4968 1228 builder.exe 83 PID 1228 wrote to memory of 4968 1228 builder.exe 83 PID 1228 wrote to memory of 2596 1228 builder.exe 84 PID 1228 wrote to memory of 2596 1228 builder.exe 84 PID 1228 wrote to memory of 2596 1228 builder.exe 84 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 2596 wrote to memory of 4872 2596 builder.exe 86 PID 4872 wrote to memory of 4448 4872 builder.exe 90 PID 4872 wrote to memory of 4448 4872 builder.exe 90 PID 4872 wrote to memory of 4448 4872 builder.exe 90 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4448 wrote to memory of 436 4448 build2.exe 91 PID 4872 wrote to memory of 4168 4872 builder.exe 92 PID 4872 wrote to memory of 4168 4872 builder.exe 92 PID 4872 wrote to memory of 4168 4872 builder.exe 92 PID 4168 wrote to memory of 3704 4168 build3.exe 93 PID 4168 wrote to memory of 3704 4168 build3.exe 93 PID 4168 wrote to memory of 3704 4168 build3.exe 93 PID 2172 wrote to memory of 4432 2172 mstsca.exe 100 PID 2172 wrote to memory of 4432 2172 mstsca.exe 100 PID 2172 wrote to memory of 4432 2172 mstsca.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\builder.exe"C:\Users\Admin\AppData\Local\Temp\builder.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Users\Admin\AppData\Local\Temp\builder.exe"C:\Users\Admin\AppData\Local\Temp\builder.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1228 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\3debf21a-dd56-40af-8f5d-3d3e6ddc1ae5" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4968
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C:\Users\Admin\AppData\Local\Temp\builder.exe"C:\Users\Admin\AppData\Local\Temp\builder.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2596 -
C:\Users\Admin\AppData\Local\Temp\builder.exe"C:\Users\Admin\AppData\Local\Temp\builder.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4872 -
C:\Users\Admin\AppData\Local\5724a565-ae99-4123-91a1-4108e76d4f03\build2.exe"C:\Users\Admin\AppData\Local\5724a565-ae99-4123-91a1-4108e76d4f03\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4448 -
C:\Users\Admin\AppData\Local\5724a565-ae99-4123-91a1-4108e76d4f03\build2.exe"C:\Users\Admin\AppData\Local\5724a565-ae99-4123-91a1-4108e76d4f03\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:436
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C:\Users\Admin\AppData\Local\5724a565-ae99-4123-91a1-4108e76d4f03\build3.exe"C:\Users\Admin\AppData\Local\5724a565-ae99-4123-91a1-4108e76d4f03\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4168 -
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:3704
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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:2172 -
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:4432
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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
MD591425cdf7f700e70ded152906a8897d4
SHA191934f4da3b05318a7f9c13772c3148502095f90
SHA2563d84c7f6ae4a5c248c01b6c0821b9df6931d93453d2cdd98b6acb14715d2662b
SHA512f76c4f299d06decf930463e3d642edf25e099ab1a6cc4f24e5b91bc37d4aacf373733d98d87407b23e28569719721c1e0bed90d99338514e4be1788b329ef348
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5a9a657bb9fbf982c38587ee2b9590a7d
SHA1ba348aa472b2d143c829cd5a764605b8e22a353c
SHA256d08e18ff8411d67ed596edcbf1aa36365d0cab8f4de48c7abfdb4062c4ab2b9c
SHA5121dcfba62c5977a3dcdf70f3fb46f6e16ab2542b68d6ebbbc4bce76c0edc4982af8ad9e4afe1d71fd3f222e01da404254e6cfdb02605ba73e21987f09522d33e1
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD59cabe86d51a87d8e43ca342518156317
SHA17b155482196b8f94429f4cfac3ba871f3d56b9ba
SHA256b96455e8d76c9198a314b8292993dea3b81661251f5871c482707f0458b66573
SHA512c94e75304258cca3e2fa305263cad4c72ba249bc766749da8bb5398633efe48eea27331993b34be323c642adf151f53dce9cf329f8171b090a9f780fd1de569d
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5d9fd18a1706485674da93f70e9ff4735
SHA131c9193760f23dd05df13da336220f53aa29642c
SHA2563336d50a4770a3b39fe292db9cf351a8ee1062d11a3b166433111e7bef3cdfef
SHA512e575759e40f38ed11cab192b9f5fb5ee09e0ba89617a10255c31263147b649542eb93de6463e4f6aad502d48869471e854418b301f45779d7def0f17787dcd05
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Filesize
770KB
MD5669a891fe610e110917fad79b6876f55
SHA1a762faa446f6a8da5770ecca619fc2cffdf33ab1
SHA256733d197665d90ebcbe41ed14d872db66604706d8435e694985ad2c459ce59b70
SHA51259e4f2c17285360286941c016a37d1f26e14bccb858e782db40488612a746199b8c30a47554d0abfd0c71a35cfb8734cb72414d02db5419289fccd667fe52298
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Filesize
379KB
MD537b6aab56a0f770ce58a670322361a1c
SHA187606604cdaa89b93d4d1b5e3e12f5ec24f60016
SHA2563d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4
SHA5127b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e
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Filesize
379KB
MD537b6aab56a0f770ce58a670322361a1c
SHA187606604cdaa89b93d4d1b5e3e12f5ec24f60016
SHA2563d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4
SHA5127b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e
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Filesize
379KB
MD537b6aab56a0f770ce58a670322361a1c
SHA187606604cdaa89b93d4d1b5e3e12f5ec24f60016
SHA2563d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4
SHA5127b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e
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Filesize
379KB
MD537b6aab56a0f770ce58a670322361a1c
SHA187606604cdaa89b93d4d1b5e3e12f5ec24f60016
SHA2563d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4
SHA5127b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e
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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
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a