Analysis
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max time kernel
145s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 20:18
Behavioral task
behavioral1
Sample
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe
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Size
819KB
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MD5
6c21a45fe14032a24019a552ee571570
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SHA1
0b73192ecf7502061b59d14808750eba47a71d90
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SHA256
c25d84c7ff7416d1dc1466ef04bb93079d96521ddca53b5f94f0e89446a1d9cb
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SHA512
0afc7f7ae971af6d1d2ac6041f9e218733517c775622cf770eb2ca1d622b5c812ba8db96fbf0fc84ed42fba19395f9d9dd7b8d38cd90afb39063d9340a07107d
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SSDEEP
24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0N/:Kwi0L0qks
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
Processes:
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exeHelpMe.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe" 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe" HelpMe.exe -
Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Processes:
resource yara_rule \Windows\SysWOW64\HelpMe.exe aspack_v212_v242 C:\$Recycle.Bin\S-1-5-21-3627615824-4061627003-3019543961-1000\desktop.ini.exe aspack_v212_v242 F:\AutoRun.exe aspack_v212_v242 -
Drops startup file 3 IoCs
Processes:
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exeHelpMe.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk HelpMe.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
Processes:
HelpMe.exepid process 2372 HelpMe.exe -
Loads dropped DLL 2 IoCs
Processes:
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exepid process 1736 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe 1736 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exeHelpMe.exedescription ioc process File opened (read-only) \??\B: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\G: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\M: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\N: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\Q: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\V: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\E: HelpMe.exe File opened (read-only) \??\I: HelpMe.exe File opened (read-only) \??\V: HelpMe.exe File opened (read-only) \??\Y: HelpMe.exe File opened (read-only) \??\E: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\O: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\R: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\X: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\M: HelpMe.exe File opened (read-only) \??\T: HelpMe.exe File opened (read-only) \??\A: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\W: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\G: HelpMe.exe File opened (read-only) \??\J: HelpMe.exe File opened (read-only) \??\L: HelpMe.exe File opened (read-only) \??\P: HelpMe.exe File opened (read-only) \??\Z: HelpMe.exe File opened (read-only) \??\K: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\P: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\N: HelpMe.exe File opened (read-only) \??\S: HelpMe.exe File opened (read-only) \??\U: HelpMe.exe File opened (read-only) \??\H: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\T: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\Y: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\O: HelpMe.exe File opened (read-only) \??\I: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\J: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\L: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\Z: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\B: HelpMe.exe File opened (read-only) \??\K: HelpMe.exe File opened (read-only) \??\Q: HelpMe.exe File opened (read-only) \??\W: HelpMe.exe File opened (read-only) \??\S: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\U: 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened (read-only) \??\A: HelpMe.exe File opened (read-only) \??\H: HelpMe.exe File opened (read-only) \??\R: HelpMe.exe File opened (read-only) \??\X: HelpMe.exe -
Drops autorun.inf file 1 TTPs 3 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
Processes:
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exeHelpMe.exedescription ioc process File opened for modification F:\AUTORUN.INF 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened for modification C:\AUTORUN.INF 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File opened for modification F:\AUTORUN.INF HelpMe.exe -
Drops file in System32 directory 2 IoCs
Processes:
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exeHelpMe.exedescription ioc process File created C:\Windows\SysWOW64\HelpMe.exe 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe File created C:\Windows\SysWOW64\HelpMe.exe HelpMe.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
Processes:
6c21a45fe14032a24019a552ee571570_JaffaCakes118.exedescription pid process target process PID 1736 wrote to memory of 2372 1736 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe HelpMe.exe PID 1736 wrote to memory of 2372 1736 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe HelpMe.exe PID 1736 wrote to memory of 2372 1736 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe HelpMe.exe PID 1736 wrote to memory of 2372 1736 6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe HelpMe.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\6c21a45fe14032a24019a552ee571570_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\HelpMe.exeC:\Windows\system32\HelpMe.exe2⤵
- Modifies WinLogon for persistence
- Drops startup file
- Executes dropped EXE
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\$Recycle.Bin\S-1-5-21-3627615824-4061627003-3019543961-1000\desktop.ini.exeFilesize
819KB
MD50d8b3c9bef4d58be3333e855a40535cc
SHA14a94bcbf16f7914adcccf26fb5eb36293bbe9e4c
SHA256a68259deb7ea57b1602ad0249c786880a14b3f36245b6891095406ad8a2bbc6e
SHA512d0017640b3397d6c36f89d56994cc86003c8c27b00e9f3d5a5a7a98b986ff00d865a17e3363bdcea1f58a08ac30d970d7b8f28a8deeedb24068fdedef1701355
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnkFilesize
1KB
MD55e60d561c70ce7544817260c9215a8d7
SHA19168efc125df27acc9db5b593b46502ac5dc259b
SHA2563b56538a54b5be64d9a1102827360c9db3584f02629943984fad6f28b2f560a3
SHA51206f91cc319a9cc7938872b9dc4adfe5b1971bc6ec9cee780fe4910a072834dbc6277bbe24079dd63e1dcd255c07676edc5cc26f9da95a4a39b6f042916e389d0
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnkMD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnkFilesize
954B
MD5e5b6371e20185fdd1c75086b11d0e5fe
SHA1f82c790d489e1e822f5ccfa2a2f37d5790d81ddf
SHA25643380909bff857c9f53b6f4006340d39cf394244d359c18f6f9af69e72faff91
SHA5122543bd059696ecc0c29465573a2bc2f11d787e65a30d93a37cde63558aa482ba9dd64bbc0d52a00ead3296ad6e238d5021d13f2155d7f03af51a35cf064d062d
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F:\AUTORUN.INFFilesize
145B
MD5ca13857b2fd3895a39f09d9dde3cca97
SHA18b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0
SHA256cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae
SHA51255e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47
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F:\AutoRun.exeFilesize
819KB
MD56c21a45fe14032a24019a552ee571570
SHA10b73192ecf7502061b59d14808750eba47a71d90
SHA256c25d84c7ff7416d1dc1466ef04bb93079d96521ddca53b5f94f0e89446a1d9cb
SHA5120afc7f7ae971af6d1d2ac6041f9e218733517c775622cf770eb2ca1d622b5c812ba8db96fbf0fc84ed42fba19395f9d9dd7b8d38cd90afb39063d9340a07107d
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\Windows\SysWOW64\HelpMe.exeFilesize
761KB
MD5848fd00b27b3ae9c5468ecde8715f2b0
SHA12f4f6760392207894670dd0a95c3e0be40380012
SHA256213f8cb0f668957718d740c67ef977e9c729378afda13242aa21dc977d6bd1fb
SHA5126554f94d88c3047d74a46b89174310969dd51fb242f35c9ce4228d7d48a9aed1dcf133f1960a687262b8c7ccb2e37ebe213bec2b833dffdca4266698dea803c8
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memory/1736-249-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-351-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-0-0x0000000000220000-0x0000000000221000-memory.dmpFilesize
4KB
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memory/1736-361-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-341-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-240-0x0000000000220000-0x0000000000221000-memory.dmpFilesize
4KB
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memory/1736-228-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-301-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-238-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-261-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-327-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-271-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-321-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-281-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-311-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/1736-291-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-229-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-292-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-302-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-282-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-312-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-272-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-322-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-262-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-328-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-250-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-342-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-239-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-352-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
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memory/2372-10-0x00000000001B0000-0x00000000001B1000-memory.dmpFilesize
4KB
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memory/2372-362-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB