Analysis
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max time kernel
147s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 11:23
Static task
static1
Behavioral task
behavioral1
Sample
EDG9532020061711000056_32859_pdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
EDG9532020061711000056_32859_pdf.exe
Resource
win10v2004-20220414-en
General
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Target
EDG9532020061711000056_32859_pdf.exe
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Size
317KB
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MD5
2778a85862dc9ac764541a0c34dce584
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SHA1
123bb7ddd48aca7c531ba892146157708754f463
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SHA256
9464eba54dd22af19c810637f246d9f6239a74f38ace5efddfbe8e37c5c64768
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SHA512
8a09bb6b83ea66d3e0e3f3166acc2276413e4b0fce84c024754e73a5d915fe1a577523c63cbd9cad325d0a6809156d0aa9f0be003bd0f5af03487e85f2c75f4d
Malware Config
Signatures
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ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral1/memory/1684-56-0x00000000022B0000-0x00000000022E8000-memory.dmp rezer0 -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8.exe" iexplore.exe -
Processes:
EDG9532020061711000056_32859_pdf.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0" EDG9532020061711000056_32859_pdf.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8.exe" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8\\G2G228Q5-P8H1-G1U7-U4L6-D1K007E3Y0Y8.exe" iexplore.exe -
Processes:
EDG9532020061711000056_32859_pdf.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" EDG9532020061711000056_32859_pdf.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
EDG9532020061711000056_32859_pdf.exeEDG9532020061711000056_32859_pdf.exedescription pid process target process PID 1684 set thread context of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1188 set thread context of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
EDG9532020061711000056_32859_pdf.exeEDG9532020061711000056_32859_pdf.exepid process 1684 EDG9532020061711000056_32859_pdf.exe 1684 EDG9532020061711000056_32859_pdf.exe 1684 EDG9532020061711000056_32859_pdf.exe 1188 EDG9532020061711000056_32859_pdf.exe 1188 EDG9532020061711000056_32859_pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
EDG9532020061711000056_32859_pdf.exeiexplore.exedescription pid process Token: SeDebugPrivilege 1684 EDG9532020061711000056_32859_pdf.exe Token: SeDebugPrivilege 1724 iexplore.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
EDG9532020061711000056_32859_pdf.exeiexplore.exepid process 1188 EDG9532020061711000056_32859_pdf.exe 1724 iexplore.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
EDG9532020061711000056_32859_pdf.exeEDG9532020061711000056_32859_pdf.exedescription pid process target process PID 1684 wrote to memory of 1564 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1564 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1564 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1564 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1560 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1560 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1560 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1560 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1748 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1748 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1748 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1748 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1684 wrote to memory of 1188 1684 EDG9532020061711000056_32859_pdf.exe EDG9532020061711000056_32859_pdf.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe PID 1188 wrote to memory of 1724 1188 EDG9532020061711000056_32859_pdf.exe iexplore.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
EDG9532020061711000056_32859_pdf.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" EDG9532020061711000056_32859_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe"C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe"{path}"2⤵
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\EDG9532020061711000056_32859_pdf.exe3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1188-57-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/1188-60-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/1188-58-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/1188-62-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/1188-63-0x00000000004010B8-mapping.dmp
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memory/1188-68-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/1684-54-0x0000000000090000-0x00000000000E6000-memory.dmpFilesize
344KB
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memory/1684-55-0x0000000000210000-0x0000000000226000-memory.dmpFilesize
88KB
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memory/1684-56-0x00000000022B0000-0x00000000022E8000-memory.dmpFilesize
224KB