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
06-12-2024 13:02
Static task
static1
Behavioral task
behavioral1
Sample
cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Resource
win10v2004-20241007-en
General
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Target
cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
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Size
772KB
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MD5
cd220a082a015e31b48905223ae4d90e
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SHA1
4763eb2dcdf87d07dd18e176e21e3a676aa79bf4
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SHA256
cc2d59e5fe1823c860fa7b4996f8b5be24bbc4da15b757ea477ef3864031fac1
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SHA512
d53fec6f9418e38f511afa61e2c54641a8fa51960f58293a47e226f6c938de2e1d4f3338a18e11f65da338f859a217b42fc1ce1d783acd116f5efb8fe354716b
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SSDEEP
12288:ysbay2bWS7Njlewp2ibfsI4/nX/tE59zXgWwfgLoS1F2K2EglvP8j9C5DY:ysbaLb33Tp2w0RntgzyoV/2EQvw9
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/2548-2-0x0000000004590000-0x00000000046AB000-memory.dmp family_djvu behavioral1/memory/1996-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1996-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1996-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1996-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-58-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-59-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2628-60-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2952-90-0x0000000000400000-0x0000000000537000-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 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2952 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2764 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\\336f5b8c-993c-47b0-b162-b3b2010aa8a2\\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe\" --AutoStart" cd220a082a015e31b48905223ae4d90e_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 9 api.2ip.ua 23 api.2ip.ua 3 api.2ip.ua 4 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2548 set thread context of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2836 set thread context of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2376 set thread context of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 -
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 icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2628 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2628 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2952 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 2952 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 45 IoCs
description pid Process procid_target PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 2548 wrote to memory of 1996 2548 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 29 PID 1996 wrote to memory of 2764 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 30 PID 1996 wrote to memory of 2764 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 30 PID 1996 wrote to memory of 2764 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 30 PID 1996 wrote to memory of 2764 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 30 PID 1996 wrote to memory of 2836 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 31 PID 1996 wrote to memory of 2836 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 31 PID 1996 wrote to memory of 2836 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 31 PID 1996 wrote to memory of 2836 1996 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 31 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2836 wrote to memory of 2628 2836 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 32 PID 2080 wrote to memory of 2376 2080 taskeng.exe 37 PID 2080 wrote to memory of 2376 2080 taskeng.exe 37 PID 2080 wrote to memory of 2376 2080 taskeng.exe 37 PID 2080 wrote to memory of 2376 2080 taskeng.exe 37 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38 PID 2376 wrote to memory of 2952 2376 cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\336f5b8c-993c-47b0-b162-b3b2010aa8a2" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2764
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C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836 -
C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2628
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C:\Windows\system32\taskeng.exetaskeng.exe {1B9B40F8-DCF0-42CB-BAB1-BB5356855069} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Users\Admin\AppData\Local\336f5b8c-993c-47b0-b162-b3b2010aa8a2\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exeC:\Users\Admin\AppData\Local\336f5b8c-993c-47b0-b162-b3b2010aa8a2\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe --Task2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376 -
C:\Users\Admin\AppData\Local\336f5b8c-993c-47b0-b162-b3b2010aa8a2\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exeC:\Users\Admin\AppData\Local\336f5b8c-993c-47b0-b162-b3b2010aa8a2\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe --Task3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2952
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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
MD5065b85ce25eff489f03b045d6c5ef463
SHA1fd710095db6d5b74709a2df6cc82fc56b7596ded
SHA256a92d4b1a4ec4ab58dae19d98f324160055dd0d0b9b93a3556e316f2fbd52ae0d
SHA5129c3415425e87357116f043abe004f41048c398ccf42091738bbcec88eec7a0096b0d03d9320fdc2d269874a510826b57b97c29b0cf7b9b6de55db3adc6b8352b
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5e7927896c450d20487265c01aad678d3
SHA1af1f3390a85a1ce89f26213b020539f882208204
SHA2569cbf3e445e6064a11ac3913e0c2d635cd69dca55880a9bdf9f5d7b5a30f24724
SHA5129b774b72f6687cd7b5b5423a74ba77ed72e3c28045566c47b158cd8760145ff1846d0eeb4e962b82ba62d82c424a94f9454efa44d7ce7f2f577a1a648d415b74
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD59c1201deb89a6e997479373416616795
SHA1d4f50a0750bceb4fd1ee37971484ca720ce1d980
SHA256876856055eaa64541af5f7b9600eb42b2a7b55a515d6a5e1fef2e285ae3e8d93
SHA512bdd34d2a7368952e90cbc62bcc89ff8597febc616ea9751481786d270ca5e13d60cff8e10059a4a3ea8306d5f250c354ce6e946af7b689b68a127b89de4a2c8b
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C:\Users\Admin\AppData\Local\336f5b8c-993c-47b0-b162-b3b2010aa8a2\cd220a082a015e31b48905223ae4d90e_JaffaCakes118.exe
Filesize772KB
MD5cd220a082a015e31b48905223ae4d90e
SHA14763eb2dcdf87d07dd18e176e21e3a676aa79bf4
SHA256cc2d59e5fe1823c860fa7b4996f8b5be24bbc4da15b757ea477ef3864031fac1
SHA512d53fec6f9418e38f511afa61e2c54641a8fa51960f58293a47e226f6c938de2e1d4f3338a18e11f65da338f859a217b42fc1ce1d783acd116f5efb8fe354716b
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b