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Analysis
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max time kernel
93s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22/12/2024, 18:18
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
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Size
759KB
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MD5
b68c88878f6b9bdd0df07df4dd78a5c2
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SHA1
0c6d8ed96b2fa7628bbcdd63b445358a40420db2
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SHA256
e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57
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SHA512
561051c1779b34ec194aa8d51b4697ab3048bc6b661df38573025ff6493a7cfe0d85f01a75e9e1896787d6aeb1dd30085d9fb90e1dd5383934db9fdeb4a91a35
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SSDEEP
12288:8yVxZ0fZ1vQd009Fzq40h8IlKD+pwpmH37+1nOTzMDXN+d/JwmYyQiavME2sTGch:kff1eqCk3ihOPMDd+d/JwmWiavMEzTGe
Malware Config
Extracted
djvu
http://fuyt.org/test1/get.php
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extension
.tuid
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offline_id
LgcOIftV0dQfFBQStVNfb8BhHy8tHRPvXwSiFwt1
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payload_url
http://zerit.top/dl/build2.exe
http://fuyt.org/files/1/build3.exe
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ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-FglTTmgzZT Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0440tOjkfd
Signatures
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Detected Djvu ransomware 9 IoCs
resource yara_rule behavioral2/memory/4620-2-0x0000000002340000-0x000000000245B000-memory.dmp family_djvu behavioral2/memory/3704-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3704-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3704-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3704-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3704-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4000-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4000-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4000-24-0x0000000000400000-0x0000000000537000-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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3876 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\eb6df9c8-2e42-4dcd-9a56-e55b3ba5b243\\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe\" --AutoStart" JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 5 api.2ip.ua 6 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4620 set thread context of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 732 set thread context of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 1908 4000 WerFault.exe 86 -
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_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3704 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 3704 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 4620 wrote to memory of 3704 4620 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 82 PID 3704 wrote to memory of 3876 3704 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 83 PID 3704 wrote to memory of 3876 3704 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 83 PID 3704 wrote to memory of 3876 3704 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 83 PID 3704 wrote to memory of 732 3704 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 84 PID 3704 wrote to memory of 732 3704 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 84 PID 3704 wrote to memory of 732 3704 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 84 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86 PID 732 wrote to memory of 4000 732 JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4620 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3704 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\eb6df9c8-2e42-4dcd-9a56-e55b3ba5b243" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:3876
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:732 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
PID:4000 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4000 -s 5685⤵
- Program crash
PID:1908
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4000 -ip 40001⤵PID:1136
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\eb6df9c8-2e42-4dcd-9a56-e55b3ba5b243\JaffaCakes118_e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57.exe
Filesize759KB
MD5b68c88878f6b9bdd0df07df4dd78a5c2
SHA10c6d8ed96b2fa7628bbcdd63b445358a40420db2
SHA256e4c05bc6f648495016a6e6a078253cf0ed7d97f00f937df776b8f9b50bdece57
SHA512561051c1779b34ec194aa8d51b4697ab3048bc6b661df38573025ff6493a7cfe0d85f01a75e9e1896787d6aeb1dd30085d9fb90e1dd5383934db9fdeb4a91a35