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Analysis
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max time kernel
144s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
01/01/2025, 01:55
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe
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Size
810KB
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MD5
42fe928b06e704ec51f6d9e679a4b2e4
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SHA1
f0fb600a2b9428b2dd33fd8a7d781f4f59423241
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SHA256
3f1596b4ebd177ec46e57ea0e6d208f32c1ebb93b448a4b5318cc116293d1e71
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SHA512
4ad727be5cc71cbcc33eaf0015e51370575137e74d460b65a2c5fa6abe7e153ce981ff3adb2937e1711d2b9a462db2b1e3cd353e971881bd5fded340f5e5075e
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SSDEEP
12288:x/4LAaAmpqSAQjWW6OCEVRxpHsSCfCP31pQlGYtQAN3WdYB89XoU2VwwZGEX8cAF:BpaYW5fRxpHs743vQ0xAnB8992VVsEv
Malware Config
Extracted
djvu
http://rlrz.org/fhsgtsspen6/get.php
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extension
.irjg
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offline_id
xcdIdDNFh62dy3iJsba1COhcfDENsbjPHQQ2Eht1
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payload_url
http://znpst.top/dl/build2.exe
http://rlrz.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-xl2bbDnZSN 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: 0338gSd743d
Signatures
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Detected Djvu ransomware 14 IoCs
resource yara_rule behavioral1/memory/2792-2-0x0000000004800000-0x000000000491B000-memory.dmp family_djvu behavioral1/memory/3020-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-7-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3020-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-59-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-58-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2632-60-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Djvu family
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Modifies file permissions 1 TTPs 1 IoCs
pid Process 2652 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f6b490f7-6515-4da4-ba89-ca45f9a4b6cf\\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe\" --AutoStart" JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.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.
flow ioc 9 api.2ip.ua 3 api.2ip.ua 4 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2792 set thread context of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 1972 set thread context of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 2632 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 2632 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 2792 wrote to memory of 3020 2792 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 28 PID 3020 wrote to memory of 2652 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 29 PID 3020 wrote to memory of 2652 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 29 PID 3020 wrote to memory of 2652 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 29 PID 3020 wrote to memory of 2652 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 29 PID 3020 wrote to memory of 1972 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 30 PID 3020 wrote to memory of 1972 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 30 PID 3020 wrote to memory of 1972 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 30 PID 3020 wrote to memory of 1972 3020 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 30 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31 PID 1972 wrote to memory of 2632 1972 JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3020 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\f6b490f7-6515-4da4-ba89-ca45f9a4b6cf" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2652
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2632
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD567e486b2f148a3fca863728242b6273e
SHA1452a84c183d7ea5b7c015b597e94af8eef66d44a
SHA256facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb
SHA512d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD59beede79d45b888149ab120b83b6b3bd
SHA1e97024ac5b4deef2723453bde3c61f9760689c3c
SHA2561a4760c526cd0fca6e6aeeb4a4d27ecdc6f5536c0ae0b6655698ebce557ca954
SHA5124700414d84e3d34a57b367f358040de162e2164deed6b7e7d1ff25268900b86f6b356adceae504dc4f53c228e78ddbdccb681096e5d81dbbeb63b27e961340d6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5f132180407c4e9bbc0def089facd9416
SHA10c29e6ddf7fbcb30deff67461280a4483ae6acf9
SHA256071116ececdfe3e898e8503f9424f606239d8b7a877dbc53d268a26134cb6eba
SHA5120d4a9e5abfca41847893a4e5c8566809a008ce376873127390e57156a5efece2663fd0b7db67524b2bf9ac94319eb43b97b4ee5f966381fea39c62a6970cb67a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5a4361a0fa2b60bba112907b7ed5811ee
SHA1d465923315ddcc17bd797823ab9cb7e724ef2067
SHA256e08d79af7a7f9fa586db96d21db328d47bf3e3667bbf96bb8ef902982ee366cf
SHA512ddc91233c29bf32861f174edbebfba66d45b3ab2cc75996e1e37cdf7dd5618f5d172cbcae4f7160eb82a6a244a5f09e5e7bc3cf96235c517a485e512ea334586
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\f6b490f7-6515-4da4-ba89-ca45f9a4b6cf\JaffaCakes118_42fe928b06e704ec51f6d9e679a4b2e4.exe
Filesize810KB
MD542fe928b06e704ec51f6d9e679a4b2e4
SHA1f0fb600a2b9428b2dd33fd8a7d781f4f59423241
SHA2563f1596b4ebd177ec46e57ea0e6d208f32c1ebb93b448a4b5318cc116293d1e71
SHA5124ad727be5cc71cbcc33eaf0015e51370575137e74d460b65a2c5fa6abe7e153ce981ff3adb2937e1711d2b9a462db2b1e3cd353e971881bd5fded340f5e5075e