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Analysis
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max time kernel
140s -
max time network
133s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
07/12/2024, 11:03
Static task
static1
Behavioral task
behavioral1
Sample
d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
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Size
772KB
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MD5
d21f65241584fd09a7f08c52f4082386
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SHA1
1eea24e7cd60eae916f6f9fc06f028c9f337786b
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SHA256
08f290d886e67c9aaa4cf058fa166e50efc8181901773373c2123e5290edab71
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SHA512
d6643cbef2249dbb53558c06f4b3634335dc02d19f07b39555057603e5e6d8b39f4ed46b37f6de751e0d8d4cb6af26b47fe1404e40b094ff3f58479d504d3a1a
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SSDEEP
24576:msddGiC4GqIG0dBtNtW95xhFvVBLB4YzZN9:ms/Msy7tyhFv3LbZ
Malware Config
Extracted
djvu
http://astdg.top/fhsgtsspen6/get.php
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extension
.reqg
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offline_id
ioYmb0jtMMtue7xjmkS3WQWGWLR8FTQhb2giQtt1
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payload_url
http://securebiz.org/dl/build2.exe
http://astdg.top/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 15 IoCs
resource yara_rule behavioral1/memory/2772-2-0x0000000004600000-0x000000000471B000-memory.dmp family_djvu behavioral1/memory/2788-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2788-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2788-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2788-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-58-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1048-59-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2476-89-0x0000000000400000-0x0000000000537000-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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Executes dropped EXE 2 IoCs
pid Process 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 2476 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3024 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c484c19d-71a7-4c07-9cd2-4f85246e7441\\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe\" --AutoStart" d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe -
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 3 api.2ip.ua 4 api.2ip.ua 9 api.2ip.ua 23 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2772 set thread context of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2356 set thread context of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2432 set thread context of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 -
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 7 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 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 1048 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 1048 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 2476 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 2476 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 45 IoCs
description pid Process procid_target PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2772 wrote to memory of 2788 2772 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 31 PID 2788 wrote to memory of 3024 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 33 PID 2788 wrote to memory of 3024 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 33 PID 2788 wrote to memory of 3024 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 33 PID 2788 wrote to memory of 3024 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 33 PID 2788 wrote to memory of 2356 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 34 PID 2788 wrote to memory of 2356 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 34 PID 2788 wrote to memory of 2356 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 34 PID 2788 wrote to memory of 2356 2788 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 34 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 2356 wrote to memory of 1048 2356 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 35 PID 3000 wrote to memory of 2432 3000 taskeng.exe 41 PID 3000 wrote to memory of 2432 3000 taskeng.exe 41 PID 3000 wrote to memory of 2432 3000 taskeng.exe 41 PID 3000 wrote to memory of 2432 3000 taskeng.exe 41 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42 PID 2432 wrote to memory of 2476 2432 d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe 42
Processes
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C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772 -
C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\c484c19d-71a7-4c07-9cd2-4f85246e7441" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3024
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C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356 -
C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1048
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C:\Windows\system32\taskeng.exetaskeng.exe {F312271D-D7C2-4D25-9B44-6AE287FB090D} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:3000 -
C:\Users\Admin\AppData\Local\c484c19d-71a7-4c07-9cd2-4f85246e7441\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exeC:\Users\Admin\AppData\Local\c484c19d-71a7-4c07-9cd2-4f85246e7441\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe --Task2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432 -
C:\Users\Admin\AppData\Local\c484c19d-71a7-4c07-9cd2-4f85246e7441\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exeC:\Users\Admin\AppData\Local\c484c19d-71a7-4c07-9cd2-4f85246e7441\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe --Task3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2476
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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
MD5d1cde989b0580a9fa1114766e0ac7863
SHA1edabd79c1c98c5f3475ea0761cef8c6ae4f124c8
SHA256e6b6566d8316795442c34a3d3c2bada127a71a867d10411c4acffaa5712a837c
SHA512aa2bfdce9d1806484c241aac17469faed7b21560aa41d49ddcb836895ce080069ff5955744f609570f02ecee02c62ece29aec415eaf725baaa16fe5f75487f42
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD58a129804d1af8d9c06efe58de8fa5705
SHA1ce29997c3267a0ae2d482664112451e19152d27b
SHA256182ab7e6e655fe878887ba761aaef69b37f9e893965193bde643f95ad4d045f7
SHA51267da83712d10defdfc8878cfb95f2b2b6b83a6b83296b3fb6a03e905dad32972ec18e7d3bc256ee84f7feaeec19811d853af8ec37a2a850d6f2639776e1353ec
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD59f6d73eac6545b3eee1d94b708c98d15
SHA166094cb5a95d8675450420e0318ff36073ede78a
SHA256116259449cc395e69e6a7ace3eabd18f29edb883c74764de1501a4b88ed6c187
SHA512a1cc684f0ed43a08d6e3cf2304f00df568d8251563e2ae06ddca31e0ea51fbe5790803971da18396b25fd7e16e1b76a728b1b303f0ae78f70896a521e98486a7
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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C:\Users\Admin\AppData\Local\c484c19d-71a7-4c07-9cd2-4f85246e7441\d21f65241584fd09a7f08c52f4082386_JaffaCakes118.exe
Filesize772KB
MD5d21f65241584fd09a7f08c52f4082386
SHA11eea24e7cd60eae916f6f9fc06f028c9f337786b
SHA25608f290d886e67c9aaa4cf058fa166e50efc8181901773373c2123e5290edab71
SHA512d6643cbef2249dbb53558c06f4b3634335dc02d19f07b39555057603e5e6d8b39f4ed46b37f6de751e0d8d4cb6af26b47fe1404e40b094ff3f58479d504d3a1a