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Analysis
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max time kernel
148s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25/12/2024, 05:05
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe
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Size
761KB
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MD5
00fdc50a5812e1dfe7bf314e81b86de5
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SHA1
e57d21a00c4af2ddfbb7b26d607076a7853e2b7a
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SHA256
7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70
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SHA512
12a468c1c072c38e8d37d77449491bd190d73af24d0109f271ec4ae93a25623190c756df29b30d0433812180200c549f3e17e6e7346fda015d2ab0ee4bea0e34
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SSDEEP
12288:xYHgevleClc4TlC9i05w3+zCKc3eTlfbeevTYCPjcgemwKVA:c9vsClhlwb5pCluR6mT7cge8
Malware Config
Extracted
djvu
http://fuyt.org/fhsgtsspen6/get.php
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extension
.dmay
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offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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payload_url
http://zerit.top/dl/build2.exe
http://fuyt.org/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/1916-2-0x0000000001E30000-0x0000000001F4B000-memory.dmp family_djvu behavioral1/memory/2188-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2188-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2188-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2188-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-48-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-50-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-63-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-66-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-65-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2584-67-0x0000000000400000-0x0000000000537000-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 2912 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ef417a62-fc3d-41a3-833d-07cce3d4a147\\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe\" --AutoStart" JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.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 4 api.2ip.ua 5 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1916 set thread context of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 2804 set thread context of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 -
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_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 2584 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 2584 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 1916 wrote to memory of 2188 1916 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 31 PID 2188 wrote to memory of 2912 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 33 PID 2188 wrote to memory of 2912 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 33 PID 2188 wrote to memory of 2912 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 33 PID 2188 wrote to memory of 2912 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 33 PID 2188 wrote to memory of 2804 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 34 PID 2188 wrote to memory of 2804 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 34 PID 2188 wrote to memory of 2804 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 34 PID 2188 wrote to memory of 2804 2188 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 34 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35 PID 2804 wrote to memory of 2584 2804 JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2188 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\ef417a62-fc3d-41a3-833d-07cce3d4a147" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2912
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2584
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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
MD52b908a7508ceb074f22ace3f77349e06
SHA164bf176de7ad516954cf7b793b0763f8c104facf
SHA2569d0e69781da4cf20b1d6fccd89fa544e5505311085791b1ca9285d4b2fae9cca
SHA512116e3315cdf07af6e96fb219b38f1ad647efcedf698548db929e5a2e95cf0ad19cf23ef8a4a5576e342cf9a2e64affee78f3fbf88c19b19d844b3fa7196e0c91
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD5445914a42dd771eb9c144e36ca1719d8
SHA1b3467dccc79dd498e96f033a8d5e0920fb121f1c
SHA2560367465e59ff76048088e1b6bd4f80d320fa4e97575c38cf6c9a1aebab3254ee
SHA512e6ab8bbd9b2799003acc010768abe73e4c7991613037ea78f652fd13c9570afea63b57ee82fba8a6a74a42106c7e8e1e5927dcd951c95c33253650d8f2c373ce
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\ef417a62-fc3d-41a3-833d-07cce3d4a147\JaffaCakes118_7081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70.exe
Filesize761KB
MD500fdc50a5812e1dfe7bf314e81b86de5
SHA1e57d21a00c4af2ddfbb7b26d607076a7853e2b7a
SHA2567081c7516836c80e7a92b35dc455ed24e79c1492ae1963c721e499f4af325e70
SHA51212a468c1c072c38e8d37d77449491bd190d73af24d0109f271ec4ae93a25623190c756df29b30d0433812180200c549f3e17e6e7346fda015d2ab0ee4bea0e34