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Analysis
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max time kernel
146s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
06/04/2024, 21:39
Behavioral task
behavioral1
Sample
e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe
Resource
win10v2004-20240319-en
General
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Target
e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe
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Size
41KB
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MD5
e35861d845057356fd7c600cf895bb0a
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SHA1
5119b59327cef622c7bde65d973f6d0bbbfee4d6
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SHA256
8bd5a7eafd012d57bc62ca67641e4c452c65ac427b8189ffec5a125f1f2c9f67
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SHA512
cbd077c9d6df6f372ce7b623ec92ecdee287914c92e2785c6694f717473172880de1e8e185085d955e071d5260f74d8c3cf4c0b7991067ee0522344c08756499
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SSDEEP
768:+PkvNw63+ePI0LJRt/0fHrR4HPGEk+8hXR+jp1IhlRRjzjVUFRdT:qJe3LJr0V4HPGEjCXR+MTTVUFRJ
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files (x86)\Common Files\System\rtproc32.exe = "C:\\Program Files (x86)\\Common Files\\System\\rtproc32.exe:*:Enabled:Microsoft Runtime Process for Win32 Services" rtproc32.exe -
Executes dropped EXE 1 IoCs
pid Process 1992 rtproc32.exe -
Loads dropped DLL 2 IoCs
pid Process 2784 e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe 2784 e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe -
resource yara_rule behavioral1/memory/2784-0-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/files/0x000b000000012252-3.dat upx behavioral1/memory/2784-10-0x0000000000290000-0x00000000002B1000-memory.dmp upx behavioral1/memory/1992-12-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/2784-13-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/1992-15-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Runtime Process for Win32 Services = "C:\\Program Files (x86)\\Common Files\\System\\rtproc32.exe" rtproc32.exe -
Drops file in Program Files directory 6 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\System rtproc32.exe File created C:\Program Files (x86)\Common Files\System\rtproc32.exe rtproc32.exe File opened for modification C:\Program Files (x86)\Common Files\System\rtproc32.exe rtproc32.exe File opened for modification C:\Program Files (x86)\Common Files\System e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe File created C:\Program Files (x86)\Common Files\System\rtproc32.exe e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe File opened for modification C:\Program Files (x86)\Common Files\System\rtproc32.exe e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2784 wrote to memory of 1992 2784 e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe 28 PID 2784 wrote to memory of 1992 2784 e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe 28 PID 2784 wrote to memory of 1992 2784 e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe 28 PID 2784 wrote to memory of 1992 2784 e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\e35861d845057356fd7c600cf895bb0a_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2784 -
C:\Program Files (x86)\Common Files\System\rtproc32.exe"C:\Program Files (x86)\Common Files\System\rtproc32.exe"2⤵
- Modifies firewall policy service
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Program Files directory
PID:1992
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
41KB
MD5e35861d845057356fd7c600cf895bb0a
SHA15119b59327cef622c7bde65d973f6d0bbbfee4d6
SHA2568bd5a7eafd012d57bc62ca67641e4c452c65ac427b8189ffec5a125f1f2c9f67
SHA512cbd077c9d6df6f372ce7b623ec92ecdee287914c92e2785c6694f717473172880de1e8e185085d955e071d5260f74d8c3cf4c0b7991067ee0522344c08756499