Analysis
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max time kernel
64s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19/01/2023, 11:39
Static task
static1
Behavioral task
behavioral1
Sample
bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe
Resource
win10v2004-20220812-en
General
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Target
bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe
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Size
828KB
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MD5
1c7c18d59d23a9901b0e2b8e48dcde2c
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SHA1
4579072148edd252a0a6eaa87eea1a0f73599258
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SHA256
bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc
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SHA512
304acab2ba7208aa70253b7dde1e90e0782b480481174c61432843f3c7870e07501b7f502ad6c2f6fecba863cdca5792cc30bc3e5173127c002537951e19656d
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SSDEEP
12288:gHR+kTeoUZ16muU4/0R2d4UloIh3BQ4Qpd0nuLpY4hR9f645zkOkTKS:gH3ZqXT4/Y2d1Q4udlXNfJ51kTv
Malware Config
Extracted
djvu
http://spaceris.com/lancer/get.php
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extension
.mzop
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offline_id
ex4uvTKsM2vEkIcr3MjXi2C6v27h1mS682iUXGt1
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payload_url
http://uaery.top/dl/build2.exe
http://spaceris.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-cud8EGMtyB 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: 0637hhsjf
Extracted
vidar
2.1
19
https://t.me/jetbim
https://steamcommunity.com/profiles/76561199471266194
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profile_id
19
Signatures
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Detected Djvu ransomware 10 IoCs
resource yara_rule behavioral2/memory/4544-133-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4544-134-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4856-136-0x00000000023F0000-0x000000000250B000-memory.dmp family_djvu behavioral2/memory/4544-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4544-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4544-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4088-146-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4088-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4088-148-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4088-164-0x0000000000400000-0x0000000000537000-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 908 build2.exe 4224 build2.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 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.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 4224 build2.exe 4224 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4580 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\\cff261be-44dc-4961-b1af-135546f903f6\\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe\" --AutoStart" bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.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 42 api.2ip.ua 16 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4856 set thread context of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 1404 set thread context of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 908 set thread context of 4224 908 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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4524 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4544 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 4544 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 4088 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 4088 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 4224 build2.exe 4224 build2.exe -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4856 wrote to memory of 4544 4856 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 80 PID 4544 wrote to memory of 4580 4544 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 81 PID 4544 wrote to memory of 4580 4544 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 81 PID 4544 wrote to memory of 4580 4544 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 81 PID 4544 wrote to memory of 1404 4544 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 82 PID 4544 wrote to memory of 1404 4544 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 82 PID 4544 wrote to memory of 1404 4544 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 82 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 1404 wrote to memory of 4088 1404 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 87 PID 4088 wrote to memory of 908 4088 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 91 PID 4088 wrote to memory of 908 4088 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 91 PID 4088 wrote to memory of 908 4088 bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe 91 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 908 wrote to memory of 4224 908 build2.exe 92 PID 4224 wrote to memory of 3568 4224 build2.exe 94 PID 4224 wrote to memory of 3568 4224 build2.exe 94 PID 4224 wrote to memory of 3568 4224 build2.exe 94 PID 3568 wrote to memory of 4524 3568 cmd.exe 96 PID 3568 wrote to memory of 4524 3568 cmd.exe 96 PID 3568 wrote to memory of 4524 3568 cmd.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe"C:\Users\Admin\AppData\Local\Temp\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4856 -
C:\Users\Admin\AppData\Local\Temp\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe"C:\Users\Admin\AppData\Local\Temp\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4544 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\cff261be-44dc-4961-b1af-135546f903f6" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4580
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C:\Users\Admin\AppData\Local\Temp\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe"C:\Users\Admin\AppData\Local\Temp\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Users\Admin\AppData\Local\Temp\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe"C:\Users\Admin\AppData\Local\Temp\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4088 -
C:\Users\Admin\AppData\Local\3bb58b89-bde8-405c-b51f-de0829927e0d\build2.exe"C:\Users\Admin\AppData\Local\3bb58b89-bde8-405c-b51f-de0829927e0d\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:908 -
C:\Users\Admin\AppData\Local\3bb58b89-bde8-405c-b51f-de0829927e0d\build2.exe"C:\Users\Admin\AppData\Local\3bb58b89-bde8-405c-b51f-de0829927e0d\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:4224 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\3bb58b89-bde8-405c-b51f-de0829927e0d\build2.exe" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:3568 -
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
PID:4524
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD5f668969af5f91ebc063c10916957b5f0
SHA1154f8af4e956880f374b7d9ca0a59be37d979eba
SHA256971130ecefcbbbf90c16c913c8d56cb3bb9765edaf09490c6289dcd7faed47f0
SHA512696d0361b41ba4db1b7ef8790e3449e9ab89f0ba146aefefbefc5afff3ed758dcf5cbc64311b2228bc97ef09771614c32d9a8d5c56a9322dfbcf1a5b2702da95
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5c2c1a9b0cafc44a493ecf30b565db71f
SHA159f89c9d3a7d0064b7c0776455a19da9f8284f58
SHA2561e6b79c51887ec42c5358fc37f1157a77163657c25b2b27c68a5ef1baff4fce1
SHA512eec0b3dc7ed29e03dc3b3cc560d56ed777bb2ffab37397dae9a0a0a68990d3277e9973c803bf44e32ccab25a05a928c66be5d291808071779b1b47f288309fea
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD576f168f7322760e950c0bf3d9bb002db
SHA1fb47db696c23f031d11a2d5ee66a0bba7ab4a631
SHA2569b86e440299336502ea6c372b48e173c0a2a69443f859ad1d7be47e613f71ea5
SHA512b56bc57369bb3970bc180b0dee1ceb05eaec34fdf6aaf3e1aaab799b9bece5b4cf4fdb95c5ba9fc6ee557306bcbf66f4b683c000b86eb7c7a2f491b690674fc6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD5f560954291b63f461cbd6a89de4b6264
SHA17ad92d8db19928895f726b647fc5bd5e3210780d
SHA256a18a1b2e4b5fcfd0781d0b258cd94db205981136796447cafbaab779a7606110
SHA512943c1da2b0f8dbc9c75ad02db73b9d49770c0bab54e473facbef5ac24457ec470a35a3dcbb2e90355eba6a5bf693480ddab972c37ec197024f12545257fba50f
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Filesize
343KB
MD57321ac833e240c7d1a799184c32d4bb6
SHA1cd5233a64aaf61f63c97241b2d4d3f4c4af2f52c
SHA25643a80ac218836ddd131f7377d0bef4fca5c3a1eb3fe05a63c69ce283dc32931e
SHA512ad89c702c0dd23318c3c7805613707a6530b813c0b4e68afa22c11ef6237ec19455b1609e0fd276a8c577fb5aea51338a472561bdcda747bc1b636156ba722a4
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Filesize
343KB
MD57321ac833e240c7d1a799184c32d4bb6
SHA1cd5233a64aaf61f63c97241b2d4d3f4c4af2f52c
SHA25643a80ac218836ddd131f7377d0bef4fca5c3a1eb3fe05a63c69ce283dc32931e
SHA512ad89c702c0dd23318c3c7805613707a6530b813c0b4e68afa22c11ef6237ec19455b1609e0fd276a8c577fb5aea51338a472561bdcda747bc1b636156ba722a4
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Filesize
343KB
MD57321ac833e240c7d1a799184c32d4bb6
SHA1cd5233a64aaf61f63c97241b2d4d3f4c4af2f52c
SHA25643a80ac218836ddd131f7377d0bef4fca5c3a1eb3fe05a63c69ce283dc32931e
SHA512ad89c702c0dd23318c3c7805613707a6530b813c0b4e68afa22c11ef6237ec19455b1609e0fd276a8c577fb5aea51338a472561bdcda747bc1b636156ba722a4
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C:\Users\Admin\AppData\Local\cff261be-44dc-4961-b1af-135546f903f6\bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc.exe
Filesize828KB
MD51c7c18d59d23a9901b0e2b8e48dcde2c
SHA14579072148edd252a0a6eaa87eea1a0f73599258
SHA256bc3c8c924623fde252926c1ad1cda9dd151c516d9173b0297681494f15d111cc
SHA512304acab2ba7208aa70253b7dde1e90e0782b480481174c61432843f3c7870e07501b7f502ad6c2f6fecba863cdca5792cc30bc3e5173127c002537951e19656d