Analysis
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max time kernel
143s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
13-08-2024 19:58
Static task
static1
Behavioral task
behavioral1
Sample
8f81e96f8c96dec003b51826bbd5885f.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
8f81e96f8c96dec003b51826bbd5885f.exe
Resource
win10v2004-20240802-en
General
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Target
8f81e96f8c96dec003b51826bbd5885f.exe
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Size
758KB
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MD5
8f81e96f8c96dec003b51826bbd5885f
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SHA1
7b8c4ec9a3808eaa32ab07d1608ad275f34adbe3
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SHA256
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4
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SHA512
8770f01b013e401a3eef992aa53e7623a0367bf857309fa238781f70f44ef3e1e5697751d2a28b7ff1f35e8fad921b3fbfeb17f3c9724fab786934c8eb8ee8ce
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SSDEEP
12288:VI/X+roiofZzZXvGasEKcXm/WThCFrUi/bwV5LYBYH7caEArXMViC53j:gOsiorGLEKT/WThUlbaUYH7lE005
Malware Config
Extracted
djvu
http://securebiz.org/fhsgtsspen6/get.php
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extension
.rigd
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offline_id
gigF2ELYocnMQz77LhEpSoXvtYp2junk9HZFtJt1
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payload_url
http://znpst.top/dl/build2.exe
http://securebiz.org/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-2zbBkO06mv 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: 0335gSd743d
Signatures
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Detected Djvu ransomware 15 IoCs
Processes:
resource yara_rule behavioral1/memory/2432-2-0x0000000000A90000-0x0000000000BAB000-memory.dmp family_djvu behavioral1/memory/2660-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2660-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2660-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2660-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-58-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-60-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-62-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-63-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2564-64-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
8f81e96f8c96dec003b51826bbd5885f.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ba6b8eb4-cdd6-4fb6-924f-7f4ec85e9ffc\\8f81e96f8c96dec003b51826bbd5885f.exe\" --AutoStart" 8f81e96f8c96dec003b51826bbd5885f.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 9 api.2ip.ua 3 api.2ip.ua 4 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
8f81e96f8c96dec003b51826bbd5885f.exe8f81e96f8c96dec003b51826bbd5885f.exedescription pid process target process PID 2432 set thread context of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 set thread context of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
8f81e96f8c96dec003b51826bbd5885f.exe8f81e96f8c96dec003b51826bbd5885f.exeicacls.exe8f81e96f8c96dec003b51826bbd5885f.exe8f81e96f8c96dec003b51826bbd5885f.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f81e96f8c96dec003b51826bbd5885f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f81e96f8c96dec003b51826bbd5885f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f81e96f8c96dec003b51826bbd5885f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f81e96f8c96dec003b51826bbd5885f.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
8f81e96f8c96dec003b51826bbd5885f.exe8f81e96f8c96dec003b51826bbd5885f.exepid process 2660 8f81e96f8c96dec003b51826bbd5885f.exe 2660 8f81e96f8c96dec003b51826bbd5885f.exe 2564 8f81e96f8c96dec003b51826bbd5885f.exe 2564 8f81e96f8c96dec003b51826bbd5885f.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
8f81e96f8c96dec003b51826bbd5885f.exe8f81e96f8c96dec003b51826bbd5885f.exe8f81e96f8c96dec003b51826bbd5885f.exedescription pid process target process PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2432 wrote to memory of 2660 2432 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2660 wrote to memory of 2724 2660 8f81e96f8c96dec003b51826bbd5885f.exe icacls.exe PID 2660 wrote to memory of 2724 2660 8f81e96f8c96dec003b51826bbd5885f.exe icacls.exe PID 2660 wrote to memory of 2724 2660 8f81e96f8c96dec003b51826bbd5885f.exe icacls.exe PID 2660 wrote to memory of 2724 2660 8f81e96f8c96dec003b51826bbd5885f.exe icacls.exe PID 2660 wrote to memory of 2664 2660 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2660 wrote to memory of 2664 2660 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2660 wrote to memory of 2664 2660 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2660 wrote to memory of 2664 2660 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe PID 2664 wrote to memory of 2564 2664 8f81e96f8c96dec003b51826bbd5885f.exe 8f81e96f8c96dec003b51826bbd5885f.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f.exe"C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432 -
C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f.exe"C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2660 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\ba6b8eb4-cdd6-4fb6-924f-7f4ec85e9ffc" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2724 -
C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f.exe"C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f.exe"C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2564
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD57fb5fa1534dcf77f2125b2403b30a0ee
SHA1365d96812a69ac0a4611ea4b70a3f306576cc3ea
SHA25633a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f
SHA512a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD567b1ad782b206be953ed4411beeb2782
SHA155ee376e1da92a6624dfbd51dd951a5309eff426
SHA256ee4b8cba3218eae21aaee727733a64baabad38d29cc2f867751ba461fee787d3
SHA512526f600cb3ef1398e9b507db25763c43c466579a91554bd08adbb54e5fa9837b94bf14b2895952b9c8ff798b9b9e90ef4655d41593664cbc8bd6e2e616bc9e12
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5b97a380ca83351242d55fea1d4b26c1b
SHA1b43219920c0be8a8dfaf7cc9e9a09948af43927a
SHA2565f941c6dcc37a09c4b2ec09d04103cf293393cda2e2c824621919cb40311de5c
SHA51283e7b9759c5abce2b02bbe80d1ff62709c8e9cd9b8b8abc656a9efd7e73410b0051f6de419862a9857379eddd307ae76154bfcef7d5d746e9032c678973191f6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD585fb965aaac3425e25279a37ce5b992c
SHA1ac2b3a356e465421679d121b754fbdcef0a44e01
SHA256559b1b619bb3344363bbf2ab38bf7242c522ab707fd088060cbd912556feaace
SHA5126f8fff33bb5f47917b693f74333c5a77178fb3b07da396479e12733182ca0971e624043f0fa9d337b5a13c178c035f792f35af5785254b6e29f442470b9a13db
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\ba6b8eb4-cdd6-4fb6-924f-7f4ec85e9ffc\8f81e96f8c96dec003b51826bbd5885f.exe
Filesize758KB
MD58f81e96f8c96dec003b51826bbd5885f
SHA17b8c4ec9a3808eaa32ab07d1608ad275f34adbe3
SHA256f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4
SHA5128770f01b013e401a3eef992aa53e7623a0367bf857309fa238781f70f44ef3e1e5697751d2a28b7ff1f35e8fad921b3fbfeb17f3c9724fab786934c8eb8ee8ce