Analysis
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max time kernel
152s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2022, 14:21
Static task
static1
Behavioral task
behavioral1
Sample
5564c4680da43fb5501cd028b43531f5.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
5564c4680da43fb5501cd028b43531f5.exe
Resource
win10v2004-20220812-en
General
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Target
5564c4680da43fb5501cd028b43531f5.exe
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Size
730KB
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MD5
5564c4680da43fb5501cd028b43531f5
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SHA1
0e11e3f578c5271423bb9ace237fb2bebe496444
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SHA256
77f6a304c9f641f5c2bb23f1071a28518532f08ecf6aaf99133dfcc89491bcd8
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SHA512
aa04b7280e3316c408e2e92d88949a583f4c35012298fc19765c286ec5dc41c3c4a8c2a1698cdafe8cea26b5c329955758b281f0b85698d1a5a5a81cec774baf
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SSDEEP
12288:r2V9envgvHStv9oN66C8trmyWq8NZ15kaf7y0ujTQfNcsWXjvQWuODDJ:r2GmStv9oNRPr9W3yVnQF6XjvQCJ
Malware Config
Extracted
djvu
http://winnlinne.com/test1/get.php
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extension
.tohj
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offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
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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-Kbx8mJatqN 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: 0574Jhyjd
Extracted
vidar
55
517
https://t.me/truewallets
https://mas.to/@zara99
http://116.203.10.3:80
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profile_id
517
Signatures
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Detected Djvu ransomware 10 IoCs
resource yara_rule behavioral2/memory/2908-133-0x0000000002450000-0x000000000256B000-memory.dmp family_djvu behavioral2/memory/4952-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4952-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4952-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4952-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4952-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2256-145-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2256-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2256-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2256-184-0x0000000000400000-0x0000000000537000-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 2 IoCs
pid Process 116 build2.exe 1536 build2.exe -
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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 5564c4680da43fb5501cd028b43531f5.exe Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 5564c4680da43fb5501cd028b43531f5.exe -
Loads dropped DLL 2 IoCs
pid Process 1536 build2.exe 1536 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4804 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\\4f6c299e-bc02-4c92-b984-8d8f116d0f15\\5564c4680da43fb5501cd028b43531f5.exe\" --AutoStart" 5564c4680da43fb5501cd028b43531f5.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 8 api.2ip.ua 9 api.2ip.ua 16 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2908 set thread context of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 1312 set thread context of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 116 set thread context of 1536 116 build2.exe 88 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 2280 1536 WerFault.exe 88 -
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 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4952 5564c4680da43fb5501cd028b43531f5.exe 4952 5564c4680da43fb5501cd028b43531f5.exe 2256 5564c4680da43fb5501cd028b43531f5.exe 2256 5564c4680da43fb5501cd028b43531f5.exe 1536 build2.exe 1536 build2.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 2908 wrote to memory of 4952 2908 5564c4680da43fb5501cd028b43531f5.exe 82 PID 4952 wrote to memory of 4804 4952 5564c4680da43fb5501cd028b43531f5.exe 83 PID 4952 wrote to memory of 4804 4952 5564c4680da43fb5501cd028b43531f5.exe 83 PID 4952 wrote to memory of 4804 4952 5564c4680da43fb5501cd028b43531f5.exe 83 PID 4952 wrote to memory of 1312 4952 5564c4680da43fb5501cd028b43531f5.exe 84 PID 4952 wrote to memory of 1312 4952 5564c4680da43fb5501cd028b43531f5.exe 84 PID 4952 wrote to memory of 1312 4952 5564c4680da43fb5501cd028b43531f5.exe 84 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 1312 wrote to memory of 2256 1312 5564c4680da43fb5501cd028b43531f5.exe 86 PID 2256 wrote to memory of 116 2256 5564c4680da43fb5501cd028b43531f5.exe 87 PID 2256 wrote to memory of 116 2256 5564c4680da43fb5501cd028b43531f5.exe 87 PID 2256 wrote to memory of 116 2256 5564c4680da43fb5501cd028b43531f5.exe 87 PID 116 wrote to memory of 1536 116 build2.exe 88 PID 116 wrote to memory of 1536 116 build2.exe 88 PID 116 wrote to memory of 1536 116 build2.exe 88 PID 116 wrote to memory of 1536 116 build2.exe 88 PID 116 wrote to memory of 1536 116 build2.exe 88 PID 116 wrote to memory of 1536 116 build2.exe 88 PID 116 wrote to memory of 1536 116 build2.exe 88 PID 116 wrote to memory of 1536 116 build2.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe"C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe"C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4952 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\4f6c299e-bc02-4c92-b984-8d8f116d0f15" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4804
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C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe"C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1312 -
C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe"C:\Users\Admin\AppData\Local\Temp\5564c4680da43fb5501cd028b43531f5.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Users\Admin\AppData\Local\86d695e0-aa89-4f65-9483-06f7d493b5b5\build2.exe"C:\Users\Admin\AppData\Local\86d695e0-aa89-4f65-9483-06f7d493b5b5\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:116 -
C:\Users\Admin\AppData\Local\86d695e0-aa89-4f65-9483-06f7d493b5b5\build2.exe"C:\Users\Admin\AppData\Local\86d695e0-aa89-4f65-9483-06f7d493b5b5\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1536 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1536 -s 7567⤵
- Program crash
PID:2280
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1536 -ip 15361⤵PID:4620
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
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
MD56f59ed058aa06aaf5ec6213b955aabd4
SHA1baf7b828a563b8fb6111e4ce35e0055575ad80b4
SHA2562d82e2629fa2e08f28b43b15da43dff56c7f4b23b39d66109c7c61998e35b4d5
SHA5126b0f041dafb98b9eaf70ac0d20a98c56e1c42231c4a4ae6e11582b20d20bf8f96dfd7747739a10d77368994441adb0e181b356f8569697b1f22ab4fe931170ce
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD50698dbc93ba7b6bef73ba316695f8317
SHA1a444078ff1eb7c88f52cb4e324365926b491ed47
SHA256263292040d77903899257c1d21201dc64d6f8d6b5a1d945cd5b28d0124d7906c
SHA512ebacaa7009aebb88199cd70fd0bb3afe69ed300318cb633edd1c0404e42aef829617f589bcbad6cb7ab4bd0a8ae87f7df1435c786184ecc5de61c8fc6950a900
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD576ae69fca39bf602ccd1c443821d30b2
SHA1ee319c29666d04f7308b2e6f548ae3e706c7ffbc
SHA256fa301f54d1be51ec5d4ccb74a7d0bb9598b1282074085bfc9c3f043dfd05686e
SHA5129a759952b614ede343aed297c4de793aaf3499012e47d2b795d721a88a4be0a6d2780591981deb2e2219772d881145dcd44dd2a04ccb5502391a34edafb70807
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD521e2bd1b0d4c6f33fcb40e626a26fea7
SHA1a59a76c1e958d9d1d51e7bedbad79429a7cbbc95
SHA2564926d244f53918b7019a21457f9e08f560bab1ef9bb826da0f7840209f9298fa
SHA5127b7886759cb2e39eea0fbd59ece2f6fccde7c8bc192affa8a126f567f374e7a9d96ed8bb97c8f895ea291a45c523abd6307238f8b55ec804a77ccf56ecff4348
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C:\Users\Admin\AppData\Local\4f6c299e-bc02-4c92-b984-8d8f116d0f15\5564c4680da43fb5501cd028b43531f5.exe
Filesize730KB
MD55564c4680da43fb5501cd028b43531f5
SHA10e11e3f578c5271423bb9ace237fb2bebe496444
SHA25677f6a304c9f641f5c2bb23f1071a28518532f08ecf6aaf99133dfcc89491bcd8
SHA512aa04b7280e3316c408e2e92d88949a583f4c35012298fc19765c286ec5dc41c3c4a8c2a1698cdafe8cea26b5c329955758b281f0b85698d1a5a5a81cec774baf
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Filesize
321KB
MD55fd8c38657bb9393bb4736c880675223
SHA1f3a03b2e75cef22262f6677e3832b6ad9327905c
SHA2562a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
SHA51243c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe
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Filesize
321KB
MD55fd8c38657bb9393bb4736c880675223
SHA1f3a03b2e75cef22262f6677e3832b6ad9327905c
SHA2562a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
SHA51243c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe
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Filesize
321KB
MD55fd8c38657bb9393bb4736c880675223
SHA1f3a03b2e75cef22262f6677e3832b6ad9327905c
SHA2562a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
SHA51243c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe