Analysis
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max time kernel
154s -
max time network
153s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
02-02-2022 01:44
Static task
static1
Behavioral task
behavioral1
Sample
NEW PURCHASE ORDER.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
NEW PURCHASE ORDER.exe
Resource
win10v2004-en-20220113
General
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Target
NEW PURCHASE ORDER.exe
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Size
982KB
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MD5
bcb77b64ef4a369f8b381aff4c6f1c57
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SHA1
4624958cd8a724ad01868331d9a78a64fb0cdcb0
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SHA256
142cf7f01ff7c99da5e16196325e3fa3a6d867ff0e50696d727c92696ba97ccf
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SHA512
9249aea1d4a0d467c544271297ee7b88851c586c9afab522f845a071d7551bbefdfc49b516d13bb5d31277ab194026ecd5852e0d751b0527e7543a2d9607405a
Malware Config
Extracted
webmonitor
niiarmah.wm01.to:443
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config_key
4EcDHH7aWbl50LayUnuRlJWUXiKQWk0O
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private_key
yvkn5wM8E
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url_path
/recv5.php
Signatures
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RevcodeRat, WebMonitorRat
WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.
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WebMonitor Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1544-57-0x0000000000400000-0x00000000004F3000-memory.dmp family_webmonitor -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
NEW PURCHASE ORDER.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-0740 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-0740.exe" NEW PURCHASE ORDER.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WebMonitor-0740 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-0740.exe" NEW PURCHASE ORDER.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
NEW PURCHASE ORDER.exedescription pid process target process PID 528 set thread context of 1544 528 NEW PURCHASE ORDER.exe NEW PURCHASE ORDER.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
NEW PURCHASE ORDER.exepid process 528 NEW PURCHASE ORDER.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
NEW PURCHASE ORDER.exedescription pid process Token: SeShutdownPrivilege 1544 NEW PURCHASE ORDER.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
NEW PURCHASE ORDER.exepid process 1544 NEW PURCHASE ORDER.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
NEW PURCHASE ORDER.exedescription pid process target process PID 528 wrote to memory of 1544 528 NEW PURCHASE ORDER.exe NEW PURCHASE ORDER.exe PID 528 wrote to memory of 1544 528 NEW PURCHASE ORDER.exe NEW PURCHASE ORDER.exe PID 528 wrote to memory of 1544 528 NEW PURCHASE ORDER.exe NEW PURCHASE ORDER.exe PID 528 wrote to memory of 1544 528 NEW PURCHASE ORDER.exe NEW PURCHASE ORDER.exe PID 528 wrote to memory of 1544 528 NEW PURCHASE ORDER.exe NEW PURCHASE ORDER.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe"C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:528 -
C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe"C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe"2⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1544
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