Analysis
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max time kernel
145s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
14-09-2024 05:47
Static task
static1
Behavioral task
behavioral1
Sample
df99d601836e60465610d4e5deea9942_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
df99d601836e60465610d4e5deea9942_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
df99d601836e60465610d4e5deea9942_JaffaCakes118.exe
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Size
74KB
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MD5
df99d601836e60465610d4e5deea9942
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SHA1
712b548b417ef1bed1dfaffb5819849495f00274
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SHA256
022e5e3eed0f7c820a6afe2a0fb87f68a3388dab5c51060e8274a5825e8f1024
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SHA512
9beb80a0631255db441b04063791e48f71c5a0b6d1fc969fcf6e2044641d49a922c5e514285f492f1c9451bc8dde8c2261f126ac1b1d4ead6c99c9e7de544c78
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SSDEEP
1536:ro5nSSxQUrr+NrPk4LnvDrRZNeYRwr30Fpb+4D5K3TPVXM:r8nxQu+NDRJZNHCcpS4gC
Malware Config
Extracted
metasploit
encoder/fnstenv_mov
Signatures
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MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
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Looks for VMWare Tools registry key 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools df99d601836e60465610d4e5deea9942_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools winimi.exe -
Deletes itself 1 IoCs
pid Process 2712 winimi.exe -
Executes dropped EXE 1 IoCs
pid Process 2712 winimi.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat winimi.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\winimi.exe df99d601836e60465610d4e5deea9942_JaffaCakes118.exe File opened for modification C:\Windows\winimi.exe df99d601836e60465610d4e5deea9942_JaffaCakes118.exe -
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 8 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 net.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winimi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language df99d601836e60465610d4e5deea9942_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 winimi.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 winimi.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" winimi.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections winimi.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings winimi.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" winimi.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings winimi.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ winimi.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" winimi.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2712 winimi.exe 2712 winimi.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2712 winimi.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2644 wrote to memory of 2708 2644 df99d601836e60465610d4e5deea9942_JaffaCakes118.exe 30 PID 2644 wrote to memory of 2708 2644 df99d601836e60465610d4e5deea9942_JaffaCakes118.exe 30 PID 2644 wrote to memory of 2708 2644 df99d601836e60465610d4e5deea9942_JaffaCakes118.exe 30 PID 2644 wrote to memory of 2708 2644 df99d601836e60465610d4e5deea9942_JaffaCakes118.exe 30 PID 2708 wrote to memory of 2668 2708 cmd.exe 32 PID 2708 wrote to memory of 2668 2708 cmd.exe 32 PID 2708 wrote to memory of 2668 2708 cmd.exe 32 PID 2708 wrote to memory of 2668 2708 cmd.exe 32 PID 2668 wrote to memory of 2588 2668 net.exe 34 PID 2668 wrote to memory of 2588 2668 net.exe 34 PID 2668 wrote to memory of 2588 2668 net.exe 34 PID 2668 wrote to memory of 2588 2668 net.exe 34 PID 2708 wrote to memory of 2580 2708 cmd.exe 35 PID 2708 wrote to memory of 2580 2708 cmd.exe 35 PID 2708 wrote to memory of 2580 2708 cmd.exe 35 PID 2708 wrote to memory of 2580 2708 cmd.exe 35 PID 2580 wrote to memory of 2576 2580 net.exe 36 PID 2580 wrote to memory of 2576 2580 net.exe 36 PID 2580 wrote to memory of 2576 2580 net.exe 36 PID 2580 wrote to memory of 2576 2580 net.exe 36 PID 2712 wrote to memory of 2716 2712 winimi.exe 37 PID 2712 wrote to memory of 2716 2712 winimi.exe 37 PID 2712 wrote to memory of 2716 2712 winimi.exe 37 PID 2712 wrote to memory of 2716 2712 winimi.exe 37
Processes
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C:\Users\Admin\AppData\Local\Temp\df99d601836e60465610d4e5deea9942_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\df99d601836e60465610d4e5deea9942_JaffaCakes118.exe"1⤵
- Looks for VMWare Tools registry key
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2644 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\a.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Windows\SysWOW64\net.exenet stop "Security Center"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "Security Center"4⤵
- System Location Discovery: System Language Discovery
PID:2588
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C:\Windows\SysWOW64\net.exenet stop winvnc43⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop winvnc44⤵
- System Location Discovery: System Language Discovery
PID:2576
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C:\Windows\winimi.exe"C:\Windows\winimi.exe"1⤵
- Looks for VMWare Tools registry key
- Deletes itself
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2712 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\a.bat" "2⤵
- System Location Discovery: System Language Discovery
PID:2716
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
74KB
MD5df99d601836e60465610d4e5deea9942
SHA1712b548b417ef1bed1dfaffb5819849495f00274
SHA256022e5e3eed0f7c820a6afe2a0fb87f68a3388dab5c51060e8274a5825e8f1024
SHA5129beb80a0631255db441b04063791e48f71c5a0b6d1fc969fcf6e2044641d49a922c5e514285f492f1c9451bc8dde8c2261f126ac1b1d4ead6c99c9e7de544c78
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Filesize
71B
MD54db2c561024318efaf926a8e0a6ebc36
SHA18e3060152b239e7c7bc488e79030b9e3c13de066
SHA256f9ea85780a059d9338c359925ec487588102ef55be4062ec4ac19efc8af59f0f
SHA512df700bc9348e147ceb1db687974c567fdff052d73eb4709b718f3b3dfaf44116a5a70c0ae62438416888c0783a575e524f501da1308bbc987443ec3c852bef99