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Analysis
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max time kernel
142s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
08/12/2024, 02:49
Static task
static1
Behavioral task
behavioral1
Sample
d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe
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Size
771KB
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MD5
d4e3e0320449bc147fbced0ced1858b2
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SHA1
483094f2ed0d4117f77fb8eb63defb229ef02881
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SHA256
a5f59422afd97955873308617220c56369a9a47b65ae39f12805df2d0999a803
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SHA512
8775b0e181cb7e96a66956ae67e9078d4a7e8eed2f2bfe9c20760ca6ce8750761d2c0730f42a09f583b4e94176d37ccaa4042ee3015a04ed861631796cc580a4
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SSDEEP
24576:BsbiyzJNq7kEJIWlZkL/4qu5mDYZxRTL9:BsddN6kEeYZq5u5zZ
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/2440-2-0x0000000004550000-0x000000000466B000-memory.dmp family_djvu behavioral1/memory/2852-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2852-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2852-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2852-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-58-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-59-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2420-60-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2256-90-0x0000000000400000-0x0000000000537000-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 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 2256 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2876 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\\6064a80b-2cf2-41e4-8321-2e64b40ab050\\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe\" --AutoStart" d4e3e0320449bc147fbced0ced1858b2_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 4 api.2ip.ua 9 api.2ip.ua 23 api.2ip.ua 3 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2440 set thread context of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 3012 set thread context of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 1988 set thread context of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 -
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 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 2420 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 2420 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 2256 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 2256 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 45 IoCs
description pid Process procid_target PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2440 wrote to memory of 2852 2440 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 30 PID 2852 wrote to memory of 2876 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 31 PID 2852 wrote to memory of 2876 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 31 PID 2852 wrote to memory of 2876 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 31 PID 2852 wrote to memory of 2876 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 31 PID 2852 wrote to memory of 3012 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 32 PID 2852 wrote to memory of 3012 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 32 PID 2852 wrote to memory of 3012 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 32 PID 2852 wrote to memory of 3012 2852 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 32 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 3012 wrote to memory of 2420 3012 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 33 PID 1504 wrote to memory of 1988 1504 taskeng.exe 39 PID 1504 wrote to memory of 1988 1504 taskeng.exe 39 PID 1504 wrote to memory of 1988 1504 taskeng.exe 39 PID 1504 wrote to memory of 1988 1504 taskeng.exe 39 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40 PID 1988 wrote to memory of 2256 1988 d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe 40
Processes
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C:\Users\Admin\AppData\Local\Temp\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440 -
C:\Users\Admin\AppData\Local\Temp\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2852 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\6064a80b-2cf2-41e4-8321-2e64b40ab050" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2876
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C:\Users\Admin\AppData\Local\Temp\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012 -
C:\Users\Admin\AppData\Local\Temp\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2420
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C:\Windows\system32\taskeng.exetaskeng.exe {CB5E6E32-761D-44A2-8089-C35D33D1B5C8} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Users\Admin\AppData\Local\6064a80b-2cf2-41e4-8321-2e64b40ab050\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exeC:\Users\Admin\AppData\Local\6064a80b-2cf2-41e4-8321-2e64b40ab050\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe --Task2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Users\Admin\AppData\Local\6064a80b-2cf2-41e4-8321-2e64b40ab050\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exeC:\Users\Admin\AppData\Local\6064a80b-2cf2-41e4-8321-2e64b40ab050\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe --Task3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2256
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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
MD595ba5538bf24eed35a5c252c64df5ccd
SHA1c7b23ea09468791c4bb7c6d79f6c745f212a5ef6
SHA256a611bc436d001b58e494473f598708c1979be63f5d593add0d96df125925507c
SHA5126321724e214c1f1abc6377b4a36532e048210d1e5c2666dc9131cc6cb30a97daaab25bd26d54b73a4d0c2125c3ca756a3a6271386df247170d2d332648e2d275
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD58151b275a4755f2a704a484265935c0a
SHA1de90589b634a7fae263d5851441b0c2ad26ee6b1
SHA2569b3d4920ad60a8975e6e2158654341a3d2d3ffbd2a51b0b2d117addc7f262955
SHA5124c998c17a7ed04ce70f40ce1d5708de8b004ec7875451274d7db580db7c664626ab789ca92f51da479d88f3c1fc2ba98d38d04d371cc7f2806077498f30eec60
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD52c8ea1d847299b33a583399cad8641d7
SHA196089263b1e10e9876abd7103aa124d313ca871e
SHA256ccf370ab320c7e755c3f812e5a53b8f198e36a0d75db8f056dfdb6c96bae3a73
SHA51272cd1dc7617f23bb4dace2cc9af7e669e957330adfff1b0670e9f37eb6a9e406f8f4ebbd822748188115a1fb8e01e0af2a98f6cd28d6a46d8bc3fc0370bb8e8f
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C:\Users\Admin\AppData\Local\6064a80b-2cf2-41e4-8321-2e64b40ab050\d4e3e0320449bc147fbced0ced1858b2_JaffaCakes118.exe
Filesize771KB
MD5d4e3e0320449bc147fbced0ced1858b2
SHA1483094f2ed0d4117f77fb8eb63defb229ef02881
SHA256a5f59422afd97955873308617220c56369a9a47b65ae39f12805df2d0999a803
SHA5128775b0e181cb7e96a66956ae67e9078d4a7e8eed2f2bfe9c20760ca6ce8750761d2c0730f42a09f583b4e94176d37ccaa4042ee3015a04ed861631796cc580a4
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b