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Analysis
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max time kernel
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
20/06/2024, 09:57
Static task
static1
Behavioral task
behavioral1
Sample
04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
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Size
15KB
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MD5
04f28f8bc08ee9a07052713b813e5ea4
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SHA1
ffb811af29ced07121e8985481e39fa650979b9d
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SHA256
46bb10b0974c71eed792c5fb84e67a7011427b5814cef38e1665de1e7842cbf3
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SHA512
217997494edc392ed7ab751a7b2f26063a8efc3c17f112bc7f32ca91aa511dfe9b52ef8dbae25943713be89609d20b4b03a42e04cf0b04053b07f03ef9fa2a42
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SSDEEP
384:1Bo/tghaQ3NDoPYGWt7sAQuvKWuAVFYlGf80B:1BmtgDqfWtsA9oAeu
Malware Config
Signatures
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Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\lweurqhx.dll = "{71A78CD4-E470-4a18-8457-E0E0283DD507}" 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe -
Deletes itself 1 IoCs
pid Process 2096 cmd.exe -
Loads dropped DLL 1 IoCs
pid Process 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\lweurqhx.tmp 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\lweurqhx.tmp 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\lweurqhx.nls 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{71A78CD4-E470-4a18-8457-E0E0283DD507} 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{71A78CD4-E470-4a18-8457-E0E0283DD507}\InProcServer32 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{71A78CD4-E470-4a18-8457-E0E0283DD507}\InProcServer32\ = "C:\\Windows\\SysWow64\\lweurqhx.dll" 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{71A78CD4-E470-4a18-8457-E0E0283DD507}\InProcServer32\ThreadingModel = "Apartment" 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2432 wrote to memory of 2096 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe 28 PID 2432 wrote to memory of 2096 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe 28 PID 2432 wrote to memory of 2096 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe 28 PID 2432 wrote to memory of 2096 2432 04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe"1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2432 -
C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\7E92.tmp.bat2⤵
- Deletes itself
PID:2096
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
207B
MD535b0143c95bf3f17c181a8869be10198
SHA123b929a2ecb8fd8e7e7979ad5ddb7f769445a185
SHA256a9612c3432db166c5fb2a53e30ac5205223b19a3fca790e87f0cac52415b7a99
SHA512d96346333021e6a5cec1770f29de67bcd9c38fa5e87fb47b3f9ce23910dbf9f29287cec2ec3bff79b4488a423514850e12e3b82cf7af0d71f55f1a232eaae8d6
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Filesize
428B
MD5cf948e1aff20b24cf98392d3cf768762
SHA161d9942dab590f5184ef8291178366a305be72b4
SHA256f58dd2d67d97f26968b8d9c24c2f616d8d5d69840443e87e715a700be7ef3d33
SHA51294ef3b727fc9145019dca7da4639e909d250199b89f7535b481e5a059676762f211485b2bd6b823da3c3b7d55cd5e18cd10627878b6e77e860bcb73d0aae68f4
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Filesize
776KB
MD5620d3806720af65107a336857674d246
SHA16500af9c3fb6d72f883c9ad2d85a45e7cbf18d27
SHA25666cf8165bccd5b0156b275a16f2bc7e442c345cc42f31cd3ebb201ce80acccf3
SHA51265b12ceb1a002d90cdb105119135e58a855b5005da7715b10d86afddeb779d91ba1ee7940f373cc67ecbebbe4432706c03dc94ad0145b305b4f37f3d81c4ce57