Analysis
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max time kernel
296s -
max time network
299s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
25-07-2024 22:53
Static task
static1
Behavioral task
behavioral1
Sample
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe
Resource
win10-20240404-en
General
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Target
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe
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Size
790KB
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MD5
4b53133b0e11c01f58a1ad4eb69fa0ce
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SHA1
00a3b78374a127bcb3c944f4a65ff0fe5ba04d37
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SHA256
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01
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SHA512
95d6245010d4784c2bc8e06965d097997f5c70af6f57e8a5c89845920641db493ca2a659ff3b93bcfac2d927434d4589b37de1364d919947a5c687f3f89fcab1
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SSDEEP
12288:Ex+HVyVS7kcMhsF6OwUdqSBnqQhDB2TMoWP6LxghFyjmHlYaOLUX:HEVSoTs8ShqwDBLMLihkjkWdLe
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
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extension
.watz
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offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
- payload_url
-
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/abe121434ad837dd5bdd03878a14485820240531135509/34284d 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: 0874PsawqS
Signatures
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Detected Djvu ransomware 14 IoCs
Processes:
resource yara_rule behavioral2/memory/588-2-0x0000000004280000-0x000000000439B000-memory.dmp family_djvu behavioral2/memory/2056-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2056-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2056-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2056-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2056-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/644-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/644-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/644-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/644-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/644-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/644-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/644-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/644-41-0x0000000000400000-0x0000000000537000-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:
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f70c24b5-0f68-475a-b6f8-c66e456ec08b\\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe\" --AutoStart" f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.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 1 api.2ip.ua 2 api.2ip.ua 10 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exef874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exedescription pid process target process PID 588 set thread context of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 set thread context of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.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:
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exef874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exeicacls.exef874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exef874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exef874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exepid process 2056 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe 2056 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe 644 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe 644 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exef874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exef874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exedescription pid process target process PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 588 wrote to memory of 2056 588 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2056 wrote to memory of 3208 2056 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe icacls.exe PID 2056 wrote to memory of 3208 2056 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe icacls.exe PID 2056 wrote to memory of 3208 2056 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe icacls.exe PID 2056 wrote to memory of 2944 2056 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2056 wrote to memory of 2944 2056 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2056 wrote to memory of 2944 2056 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe PID 2944 wrote to memory of 644 2944 f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe"C:\Users\Admin\AppData\Local\Temp\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:588 -
C:\Users\Admin\AppData\Local\Temp\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe"C:\Users\Admin\AppData\Local\Temp\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2056 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\f70c24b5-0f68-475a-b6f8-c66e456ec08b" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3208 -
C:\Users\Admin\AppData\Local\Temp\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe"C:\Users\Admin\AppData\Local\Temp\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Users\Admin\AppData\Local\Temp\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe"C:\Users\Admin\AppData\Local\Temp\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:644
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
MD5492e6b9ce669abcee99a2890ea861df9
SHA199348f5e97cb1158a1258e96d01964efad6b95ab
SHA25616e24a5f75fce3d04ac961bfc1f62fcf490e24ca78f550ca54aa259ccdaae0fa
SHA512d7babbf89f5f5648fc471848d68fce4e72e82e12ae8df3a10fe49e541c37d3fc4710ad41998f1bd146552823ad783431ebb5ed165def619461d94d75a337d7b6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5591c0b6b740633dd6b9470e887b9b1f6
SHA193780fbf1bd18c27433e4077d86beb581b710160
SHA2568b001854c3648927bdfa66dd4529ff42f3788a1c3b5e03b62f65b610ab435e20
SHA5129a65450939785fbba8ee06bdc91f8d759a447a61a1e7fe930c210483c813c2de2831a0cbc05916e552d89f5732c524a70e2abe49ea40acd44179bb76a835c165
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C:\Users\Admin\AppData\Local\f70c24b5-0f68-475a-b6f8-c66e456ec08b\f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01.exe
Filesize790KB
MD54b53133b0e11c01f58a1ad4eb69fa0ce
SHA100a3b78374a127bcb3c944f4a65ff0fe5ba04d37
SHA256f874d2ec768aac73111ccc280352a8769b03d1789327b0b3e9674c55e0de1c01
SHA51295d6245010d4784c2bc8e06965d097997f5c70af6f57e8a5c89845920641db493ca2a659ff3b93bcfac2d927434d4589b37de1364d919947a5c687f3f89fcab1