Analysis
- max time kernel
74s - max time network
11s - platform
windows7_x64 - resource
win7v20201028 - submitted
11/02/2021, 10:05
General
- Target 回复PO残跟踪状况-20210211_pdf.exe
- Size 487KB
- Sample210211-tbksbjbc76
- SHA256 fa0c59c6418d5bc0a4efc4a543c49b5e6e1a92f5ecf1ffbceadc6cc9bdf0b63b
Score
5/10
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\回复PO残跟踪状况-20210211_pdf.exe"C:\Users\Admin\AppData\Local\Temp\回复PO残跟踪状况-20210211_pdf.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GVUjzAuEQy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp85A4.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 112 -s 10002⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/112-2-0x0000000074DD0000-0x00000000754BE000-memory.dmp
memory/112-3-0x0000000000A90000-0x0000000000A91000-memory.dmp
memory/112-5-0x00000000005B0000-0x00000000005B4000-memory.dmp
memory/112-6-0x0000000004A60000-0x0000000004A61000-memory.dmp
memory/112-7-0x00000000041A0000-0x00000000041F5000-memory.dmp
memory/1496-11-0x0000000002000000-0x0000000002011000-memory.dmp
memory/1496-12-0x00000000005D0000-0x00000000005D1000-memory.dmp