Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
14-08-2024 01:29
Static task
static1
Behavioral task
behavioral1
Sample
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe
Resource
win10v2004-20240802-en
General
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Target
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.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 18 IoCs
Processes:
resource yara_rule behavioral2/memory/3644-2-0x0000000000C20000-0x0000000000D3B000-memory.dmp family_djvu behavioral2/memory/1244-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1244-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1244-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1244-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1244-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-41-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4412-43-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\efad0a4c-1077-42b9-9155-e4033d4c8d4c\\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe\" --AutoStart" f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.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 13 api.2ip.ua 14 api.2ip.ua 29 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exef7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exedescription pid process target process PID 3644 set thread context of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 set thread context of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.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:
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exef7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exeicacls.exef7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exef7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exef7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exepid process 1244 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe 1244 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe 4412 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe 4412 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exef7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exef7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exedescription pid process target process PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 3644 wrote to memory of 1244 3644 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1244 wrote to memory of 3328 1244 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe icacls.exe PID 1244 wrote to memory of 3328 1244 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe icacls.exe PID 1244 wrote to memory of 3328 1244 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe icacls.exe PID 1244 wrote to memory of 1900 1244 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1244 wrote to memory of 1900 1244 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1244 wrote to memory of 1900 1244 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe PID 1900 wrote to memory of 4412 1900 f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe"C:\Users\Admin\AppData\Local\Temp\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3644 -
C:\Users\Admin\AppData\Local\Temp\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe"C:\Users\Admin\AppData\Local\Temp\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1244 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\efad0a4c-1077-42b9-9155-e4033d4c8d4c" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3328 -
C:\Users\Admin\AppData\Local\Temp\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe"C:\Users\Admin\AppData\Local\Temp\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900 -
C:\Users\Admin\AppData\Local\Temp\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe"C:\Users\Admin\AppData\Local\Temp\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4412
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
MD5e29f6f0d35280636da9922328a3fb116
SHA113d31c4e1d9197766a82d5a22eda19b0bbcee541
SHA256db4e8df4c41d1f648235a0e3cf9d58a5221976e78a952bf590ef7f97d86792ba
SHA512829e860d154ca07170927eaa361fc8a0d5b9feedbe698d6081f77b1324911ce801c8721ffadfe95b2b1cc9e5a99b6e557cd0393c460246d6f3b6e7bceb3ac77a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD59fe1448dee2c481b5ca191bfa7c5dfeb
SHA1382ea09d06b6515c0f42265e385195ed74c485e7
SHA25632419d6aa5fe84ca8f17fbadb834b9138d9e203e0b5a02268d65fee4b86e034c
SHA5129be893e77252e05c4551d56c81017429c8c9cabeef25fbcd9c7b0ea9d7f3edd19dea95a98a9fd187f809c1ad5383e9ee92add83becb0fd1f4a40f69d35d74c7f
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C:\Users\Admin\AppData\Local\efad0a4c-1077-42b9-9155-e4033d4c8d4c\f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4.exe
Filesize758KB
MD58f81e96f8c96dec003b51826bbd5885f
SHA17b8c4ec9a3808eaa32ab07d1608ad275f34adbe3
SHA256f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4
SHA5128770f01b013e401a3eef992aa53e7623a0367bf857309fa238781f70f44ef3e1e5697751d2a28b7ff1f35e8fad921b3fbfeb17f3c9724fab786934c8eb8ee8ce