Analysis
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max time kernel
38s -
max time network
112s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
26-02-2021 08:18
Static task
static1
Behavioral task
behavioral1
Sample
Doc_498575947594986494659499465848658484846584,pdf.exe
Resource
win7v20201028
General
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Target
Doc_498575947594986494659499465848658484846584,pdf.exe
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Size
78KB
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MD5
31a018d815f0d317b090665f3c4050e8
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SHA1
976a5037b21e53bd265a9b82271db389be0279ff
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SHA256
c0edc415e1c08532783562faf5434e866087e82e257283fc3b0bb0081b040f24
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SHA512
e29ae8b6a24206d59cdce3f0a120cc7931c07100f2ace1cab2ad54967c9efe47f958c665101ac6e2e68132d4a0fba1d7a19eabe952eaf6baeb7033a794f60ccd
Malware Config
Signatures
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Processes:
Doc_498575947594986494659499465848658484846584,pdf.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths Doc_498575947594986494659499465848658484846584,pdf.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions Doc_498575947594986494659499465848658484846584,pdf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\Doc_498575947594986494659499465848658484846584,pdf.exe = "0" Doc_498575947594986494659499465848658484846584,pdf.exe -
Processes:
Doc_498575947594986494659499465848658484846584,pdf.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Doc_498575947594986494659499465848658484846584,pdf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Doc_498575947594986494659499465848658484846584,pdf.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
Processes:
Doc_498575947594986494659499465848658484846584,pdf.exepid process 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1268 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exeDoc_498575947594986494659499465848658484846584,pdf.exepid process 2684 powershell.exe 2684 powershell.exe 528 Doc_498575947594986494659499465848658484846584,pdf.exe 2684 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Doc_498575947594986494659499465848658484846584,pdf.exepowershell.exedescription pid process Token: SeDebugPrivilege 528 Doc_498575947594986494659499465848658484846584,pdf.exe Token: SeDebugPrivilege 2684 powershell.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
Doc_498575947594986494659499465848658484846584,pdf.execmd.exedescription pid process target process PID 528 wrote to memory of 2684 528 Doc_498575947594986494659499465848658484846584,pdf.exe powershell.exe PID 528 wrote to memory of 2684 528 Doc_498575947594986494659499465848658484846584,pdf.exe powershell.exe PID 528 wrote to memory of 2684 528 Doc_498575947594986494659499465848658484846584,pdf.exe powershell.exe PID 528 wrote to memory of 424 528 Doc_498575947594986494659499465848658484846584,pdf.exe cmd.exe PID 528 wrote to memory of 424 528 Doc_498575947594986494659499465848658484846584,pdf.exe cmd.exe PID 528 wrote to memory of 424 528 Doc_498575947594986494659499465848658484846584,pdf.exe cmd.exe PID 424 wrote to memory of 1268 424 cmd.exe timeout.exe PID 424 wrote to memory of 1268 424 cmd.exe timeout.exe PID 424 wrote to memory of 1268 424 cmd.exe timeout.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
Doc_498575947594986494659499465848658484846584,pdf.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Doc_498575947594986494659499465848658484846584,pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Doc_498575947594986494659499465848658484846584,pdf.exe"C:\Users\Admin\AppData\Local\Temp\Doc_498575947594986494659499465848658484846584,pdf.exe"1⤵
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Doc_498575947594986494659499465848658484846584,pdf.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 13⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/424-20-0x0000000000000000-mapping.dmp
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memory/528-16-0x0000000005A10000-0x0000000005A11000-memory.dmpFilesize
4KB
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memory/528-3-0x0000000000920000-0x0000000000921000-memory.dmpFilesize
4KB
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memory/528-5-0x0000000005280000-0x0000000005281000-memory.dmpFilesize
4KB
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memory/528-6-0x0000000006BF0000-0x0000000006BF1000-memory.dmpFilesize
4KB
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memory/528-9-0x0000000004B80000-0x0000000004C11000-memory.dmpFilesize
580KB
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memory/528-10-0x0000000007190000-0x0000000007191000-memory.dmpFilesize
4KB
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memory/528-11-0x0000000006C90000-0x0000000006C91000-memory.dmpFilesize
4KB
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memory/528-2-0x0000000073D50000-0x000000007443E000-memory.dmpFilesize
6.9MB
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memory/1268-23-0x0000000000000000-mapping.dmp
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memory/2684-12-0x0000000000000000-mapping.dmp
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memory/2684-26-0x00000000080C0000-0x00000000080C1000-memory.dmpFilesize
4KB
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memory/2684-17-0x00000000069A0000-0x00000000069A1000-memory.dmpFilesize
4KB
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memory/2684-18-0x00000000069A2000-0x00000000069A3000-memory.dmpFilesize
4KB
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memory/2684-14-0x00000000043C0000-0x00000000043C1000-memory.dmpFilesize
4KB
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memory/2684-19-0x0000000006D10000-0x0000000006D11000-memory.dmpFilesize
4KB
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memory/2684-21-0x0000000006EB0000-0x0000000006EB1000-memory.dmpFilesize
4KB
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memory/2684-22-0x0000000007610000-0x0000000007611000-memory.dmpFilesize
4KB
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memory/2684-13-0x0000000073D50000-0x000000007443E000-memory.dmpFilesize
6.9MB
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memory/2684-24-0x00000000077F0000-0x00000000077F1000-memory.dmpFilesize
4KB
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memory/2684-25-0x00000000076D0000-0x00000000076D1000-memory.dmpFilesize
4KB
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memory/2684-15-0x0000000006FE0000-0x0000000006FE1000-memory.dmpFilesize
4KB
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memory/2684-27-0x0000000007EC0000-0x0000000007EC1000-memory.dmpFilesize
4KB
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memory/2684-29-0x0000000008C50000-0x0000000008C83000-memory.dmpFilesize
204KB
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memory/2684-36-0x0000000008C30000-0x0000000008C31000-memory.dmpFilesize
4KB
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memory/2684-37-0x0000000008DD0000-0x0000000008DD1000-memory.dmpFilesize
4KB
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memory/2684-38-0x000000007F3D0000-0x000000007F3D1000-memory.dmpFilesize
4KB
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memory/2684-39-0x0000000009170000-0x0000000009171000-memory.dmpFilesize
4KB
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memory/2684-40-0x00000000069A3000-0x00000000069A4000-memory.dmpFilesize
4KB
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memory/2684-41-0x0000000009120000-0x0000000009121000-memory.dmpFilesize
4KB
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memory/2684-43-0x0000000009110000-0x0000000009111000-memory.dmpFilesize
4KB