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Analysis
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max time kernel
140s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
21/12/2024, 23:53
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
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Size
778KB
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MD5
bb06d1846ea54e5f14a111df981b1892
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SHA1
f2291f33e8b08dc1ef9de6612116e585325d3202
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SHA256
994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1
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SHA512
5d5ce9d29342783f6ee90c042e64517fd4e3725ebeb28ae6b824716e7c455786af3b63b5344bb6dcd65cf2586619cfbe2c5a05ac758ca0ebccbe4d1b2cae8190
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SSDEEP
12288:wtKJjNzLPds7vqfRrZm9mxu1XN92EGMcow/rEjXAvZJ3dkWW:wIZldf7nWNUZdZrEkvvdkWW
Malware Config
Extracted
djvu
http://fuyt.org/lancer/get.php
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extension
.gtys
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offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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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/2840-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2244-6-0x00000000004F0000-0x000000000060B000-memory.dmp family_djvu behavioral1/memory/2840-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2840-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2840-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-56-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-65-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-68-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-70-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-71-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2612-72-0x0000000000400000-0x0000000000537000-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 2804 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\64e55182-6e69-4a8f-805f-3e5e2d220f42\\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe\" --AutoStart" JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.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 3 api.2ip.ua 5 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2244 set thread context of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2780 set thread context of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 -
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_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 2612 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 2612 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2244 wrote to memory of 2840 2244 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 30 PID 2840 wrote to memory of 2804 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 32 PID 2840 wrote to memory of 2804 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 32 PID 2840 wrote to memory of 2804 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 32 PID 2840 wrote to memory of 2804 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 32 PID 2840 wrote to memory of 2780 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 33 PID 2840 wrote to memory of 2780 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 33 PID 2840 wrote to memory of 2780 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 33 PID 2840 wrote to memory of 2780 2840 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 33 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34 PID 2780 wrote to memory of 2612 2780 JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2840 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\64e55182-6e69-4a8f-805f-3e5e2d220f42" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2804
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2612
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
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
MD5d072c4eab146679f15dc30539703337a
SHA129b2a65445fb6533c728095d411ef80914a15ea1
SHA256475ffb7a56d5e67d119fff1e943237866f41765df2a058bc9e358ecbac004985
SHA512238e12f672d7c1f2a3addde3c1cd73008d5878ceccae330bb883eb3c64047f306f42a45a6aa19d4ec1d952112f39c38d9b59f055b8a54ad520bd024a1c5c163a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD544e5c833ae3d54168a6e0a5f1e88bc25
SHA1f0d9fcf5a2d8613e410df08141926e57a21ac1cb
SHA2567291b27dd1610313350ea697328306b02c7ba9857909551ff7da53c1a91f4e6a
SHA51233f127b91779624c39990e48e2e76f9eb5e7a3d0ecf80ad2978d3ac3bff94272fcb253519f3a7c3140df50ed27b2325edf57ca1f124b23c5b7764be08e5fa39c
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD50804520effff1440031916ab13c9a068
SHA19d804a6865a5c592248ff57f3f4c01ee39d5a0cc
SHA2565733c69d38c2bb3006cdcbf424940d5822b6d1a9231d977ccc36307e06996540
SHA512c0a24fe7b06cc8815cc5a5ae26df6692e87b7f4293568c823c3d0a4cae475d22009eb93a656d2586d6fb0ae01ee6ea34e7716a0965c24332effd6dcb4a084dc9
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C:\Users\Admin\AppData\Local\64e55182-6e69-4a8f-805f-3e5e2d220f42\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
Filesize778KB
MD5bb06d1846ea54e5f14a111df981b1892
SHA1f2291f33e8b08dc1ef9de6612116e585325d3202
SHA256994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1
SHA5125d5ce9d29342783f6ee90c042e64517fd4e3725ebeb28ae6b824716e7c455786af3b63b5344bb6dcd65cf2586619cfbe2c5a05ac758ca0ebccbe4d1b2cae8190
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b