Analysis
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max time kernel
145s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
12-08-2024 16:48
Static task
static1
Behavioral task
behavioral1
Sample
8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.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
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Signatures
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Detected Djvu ransomware 17 IoCs
Processes:
resource yara_rule behavioral1/memory/2148-5-0x0000000000AC0000-0x0000000000BDB000-memory.dmp family_djvu behavioral1/memory/2088-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2088-7-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2088-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2088-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2688-34-0x0000000000400000-0x00000000008ED000-memory.dmp family_djvu behavioral1/memory/2760-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2760-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2760-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2760-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2760-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2688-52-0x0000000000400000-0x00000000008ED000-memory.dmp family_djvu behavioral1/memory/2760-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2760-59-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2760-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2760-58-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2760-60-0x0000000000400000-0x0000000000537000-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_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b584319d-51c2-4fe7-9cd3-9382c7e4b113\\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe\" --AutoStart" 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.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 4 api.2ip.ua 5 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exedescription pid process target process PID 2148 set thread context of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 set thread context of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.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_JaffaCakes118.exe8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exeicacls.exe8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exepid process 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 2760 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 2760 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exedescription pid process target process PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2148 wrote to memory of 2088 2148 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2088 wrote to memory of 1284 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe icacls.exe PID 2088 wrote to memory of 1284 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe icacls.exe PID 2088 wrote to memory of 1284 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe icacls.exe PID 2088 wrote to memory of 1284 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe icacls.exe PID 2088 wrote to memory of 2688 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2088 wrote to memory of 2688 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2088 wrote to memory of 2688 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2088 wrote to memory of 2688 2088 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe PID 2688 wrote to memory of 2760 2688 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe 8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148 -
C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\b584319d-51c2-4fe7-9cd3-9382c7e4b113" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:1284 -
C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688 -
C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2760
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
MD5ab708b48c123ef07dcf2718b72ce5dd1
SHA1cffd5380e4e4ae5bf9b718402c6605242ae02a90
SHA256a6d1682aceba63c758c7d69f30f671594e3da56830294bfd1251141e0f50c290
SHA512c18845e97c4e76462bf74c5986e3de74578897d291aacf09708485ef7c88e1d46bdaa564e26e0942b7335f2e9c39cf4d13da5d21c50eef64ad30f6c3d843c687
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD55f4ad34bd9c1c98ace509fbcb1d73657
SHA1e7bf294189a6072a8c59b7df83e03031ca5a1237
SHA2568a4aa5f9a734f1206c540752867b295b7fd90381d47c93958b910c5c718de71f
SHA5120af6941ca19cbda22d50c10e057378dbc4f2b90e43207ff8b3d4005ed7402f96c2f61fe7212034e8c786581e176a79a994d24cd3c40df9199b5498c58e7b2c7d
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\b584319d-51c2-4fe7-9cd3-9382c7e4b113\8f81e96f8c96dec003b51826bbd5885f_JaffaCakes118.exe
Filesize758KB
MD58f81e96f8c96dec003b51826bbd5885f
SHA17b8c4ec9a3808eaa32ab07d1608ad275f34adbe3
SHA256f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4
SHA5128770f01b013e401a3eef992aa53e7623a0367bf857309fa238781f70f44ef3e1e5697751d2a28b7ff1f35e8fad921b3fbfeb17f3c9724fab786934c8eb8ee8ce