Analysis
- max time kernel
104s - max time network
11s - platform
windows7_x64 - resource
win7v20210410 - submitted
19/04/2021, 15:50
General
- Target Maksuvahvistus.exe
- Size 1.4MB
- Sample210419-2vv3dhthn2
- SHA256 88e4cafa9fe18c0b4f53f5e0d176d78bf9f81bb02328ec448fa644be018747a4
Malware Config
Signatures
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Maksuvahvistus.exe"C:\Users\Admin\AppData\Local\Temp\Maksuvahvistus.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FqakjeocsG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB7AB.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1660-70-0x0000000000400000-0x00000000004D0000-memory.dmp
memory/1660-68-0x0000000000400000-0x00000000004D0000-memory.dmp
memory/1660-72-0x0000000000720000-0x0000000000724000-memory.dmp
memory/1660-73-0x0000000004D70000-0x0000000004D71000-memory.dmp
memory/1660-74-0x000000007EF40000-0x000000007EF41000-memory.dmp
memory/2040-64-0x0000000005300000-0x0000000005441000-memory.dmp
memory/2040-65-0x0000000008A70000-0x0000000008B79000-memory.dmp
memory/2040-63-0x0000000000270000-0x0000000000276000-memory.dmp
memory/2040-62-0x00000000011B0000-0x00000000011B1000-memory.dmp
memory/2040-60-0x00000000012F0000-0x00000000012F1000-memory.dmp