Analysis
-
max time kernel
150s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 04:04
Static task
static1
Behavioral task
behavioral1
Sample
519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe
Resource
win10v2004-20240508-en
General
-
Target
519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe
-
Size
711KB
-
MD5
07116bba4c9f651cf2c4327698483aa0
-
SHA1
02a9fc8459c6ad451ba571146d5211664b4276d3
-
SHA256
519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d
-
SHA512
d825dc67fbf663e6f193200aed834da7aa46396cd13b48f3c47298e984347730df7a99e48dd6b6e4b06805004ced2a2a761d626b1ebeb88e9607062e0f493ae2
-
SSDEEP
12288:o4Amb9t3hc0lMxKvp30GfaOztaHNdvPRROnLTfp1WPhbFXMNZMCHcBiFBcDW7X:o49bLLgQ50GfaOzCnvPRWLV8PRFXMPHj
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
-
extension
.vepi
-
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
-
payload_url
http://sdfjhuz.com/dl/build2.exe
http://cajgtus.com/files/1/build3.exe
-
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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0871PsawqS
Signatures
-
Detected Djvu ransomware 13 IoCs
Processes:
resource yara_rule behavioral1/memory/2172-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2172-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2172-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2008-2-0x0000000004620000-0x000000000473B000-memory.dmp family_djvu behavioral1/memory/2172-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-47-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-46-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2484-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Modifies file permissions 1 TTPs 1 IoCs
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\bcb40505-fb85-4613-8817-36ef78219cec\\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe\" --AutoStart" 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 api.2ip.ua 5 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exedescription pid process target process PID 2008 set thread context of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 set thread context of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exepid process 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 2484 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 2484 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exedescription pid process target process PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2008 wrote to memory of 2172 2008 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2172 wrote to memory of 2908 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe icacls.exe PID 2172 wrote to memory of 2908 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe icacls.exe PID 2172 wrote to memory of 2908 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe icacls.exe PID 2172 wrote to memory of 2908 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe icacls.exe PID 2172 wrote to memory of 2508 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2172 wrote to memory of 2508 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2172 wrote to memory of 2508 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2172 wrote to memory of 2508 2172 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe PID 2508 wrote to memory of 2484 2508 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe 519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe"C:\Users\Admin\AppData\Local\Temp\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Users\Admin\AppData\Local\Temp\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe"C:\Users\Admin\AppData\Local\Temp\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2172 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\bcb40505-fb85-4613-8817-36ef78219cec" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2908 -
C:\Users\Admin\AppData\Local\Temp\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe"C:\Users\Admin\AppData\Local\Temp\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2508 -
C:\Users\Admin\AppData\Local\Temp\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe"C:\Users\Admin\AppData\Local\Temp\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2484
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD57575c39a544943a68ce6e709c586005a
SHA14874b30bd1d455b28a95c4e21c5aecd1ea043d7a
SHA2564737de49245ace1ca1fdeaacd5feee9bbda88bc6f42c84a1ea7d316383792cf8
SHA512abf3d85393725113e720cbe8980b369236511e3984e8cbfa795f19bb5d6e39822e80a835caeb498581797a74b349765ba1a27f26586a17a66ae1c88bd066a3d1
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD509d7a5c0961575defeca5ffcda21e8b4
SHA1c42587cd4278c0937c2bcf3df37af6dc08189a41
SHA256710f0746b4f1b69d1c2576752d1a267dd35e6b4dfc8b47ddb9a4458a8af47928
SHA51293f67a67de7149ada0f1f0c3e01c2d2c72d0cdf46a8d0534d4c1eb630c3de9b74bc48ea8c16109f5b753ccb1451ad26e7e81c4c17e8bba68302d49b7d129db49
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD5f32543cff124d22be350d225586f8dad
SHA185431a2836025ed9b382744153dd976eebe0c53b
SHA256a3a757614e2447c77eb242b75be6a2cb4cba70885635ff1b0f80de8e30cfc59f
SHA5127a94094afab68b838b102ec87f44ec19a473b4723001f19d92801f113cd2f24628ee6161cef5753501a6504353b1b7ce529e77591f68b8f10314d7b9c05d3c12
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD541b149308a67a7dccd2a5d49f81d7e3d
SHA1875eb22d07c105b0ccfecbf31c8b2a8c881ea335
SHA2564575e9d072a0366f6d5e52b1fdb4962916f1778ea5987eedfb8cb248d43162a9
SHA512bd4cc32e5f8e6ed9e0c4825ef1b5cf4d0d010929b1a7ea52192e60c427854af9cfbc2c5345867beca1750e91f7c963d78720a9ca9ac9824f627c44aeb68bd4fc
-
Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
-
C:\Users\Admin\AppData\Local\bcb40505-fb85-4613-8817-36ef78219cec\519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d.exe
Filesize711KB
MD507116bba4c9f651cf2c4327698483aa0
SHA102a9fc8459c6ad451ba571146d5211664b4276d3
SHA256519411833bee98ae20a5e99db24abb89266ec25471673b6d32d6cebce49a9d6d
SHA512d825dc67fbf663e6f193200aed834da7aa46396cd13b48f3c47298e984347730df7a99e48dd6b6e4b06805004ced2a2a761d626b1ebeb88e9607062e0f493ae2