Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
23/01/2023, 19:09
General
- Target 5577a97d0c2c1e2930eb1aa36b4d0ebb.exe
- Size 3.6MB
- Sample230123-xtvfwsge5v
- SHA256 217859f8f952a9de8aeb91dc175ef6dad10142327bb6111fafa2b4523161d178
Malware Config
Signatures
- Blocklisted process makes network request 4 IoCs
- Loads dropped DLL 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 26 IoCs
Processor information is often read in order to detect sandboxing environments.
- Modifies registry class 5 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\5577a97d0c2c1e2930eb1aa36b4d0ebb.exe"C:\Users\Admin\AppData\Local\Temp\5577a97d0c2c1e2930eb1aa36b4d0ebb.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\Qdwywhepeywaes.dll,start2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 306633⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 4882⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4664 -ip 46641⤵
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
Qdwywhepeywaes.dll
Qdwywhepeywaes.dll
Qdwywhepeywaes.dll
memory/4392-146-0x0000000004330000-0x0000000004470000-memory.dmp
memory/4392-148-0x0000000004330000-0x0000000004470000-memory.dmp
memory/4392-158-0x00000000036F0000-0x0000000004266000-memory.dmp
memory/4392-153-0x00000000043A9000-0x00000000043AB000-memory.dmp
memory/4392-139-0x0000000002480000-0x00000000028D0000-memory.dmp
memory/4392-140-0x0000000002480000-0x00000000028D0000-memory.dmp
memory/4392-150-0x0000000004330000-0x0000000004470000-memory.dmp
memory/4392-142-0x0000000002480000-0x00000000028D0000-memory.dmp
memory/4392-143-0x00000000036F0000-0x0000000004266000-memory.dmp
memory/4392-145-0x00000000036F0000-0x0000000004266000-memory.dmp
memory/4392-144-0x00000000036F0000-0x0000000004266000-memory.dmp
memory/4392-151-0x0000000004330000-0x0000000004470000-memory.dmp
memory/4392-147-0x0000000004330000-0x0000000004470000-memory.dmp
memory/4392-149-0x0000000004330000-0x0000000004470000-memory.dmp
memory/4664-132-0x0000000004D89000-0x000000000510B000-memory.dmp
memory/4664-141-0x0000000000400000-0x0000000002F0B000-memory.dmp
memory/4664-133-0x0000000005110000-0x00000000055F2000-memory.dmp
memory/4664-134-0x0000000000400000-0x0000000002F0B000-memory.dmp
memory/4840-154-0x000001E844CC0000-0x000001E844E00000-memory.dmp
memory/4840-155-0x000001E844CC0000-0x000001E844E00000-memory.dmp
memory/4840-156-0x000001E843270000-0x000001E84351F000-memory.dmp
memory/4840-157-0x0000000000F70000-0x000000000120D000-memory.dmp
memory/4840-159-0x000001E843270000-0x000001E84351F000-memory.dmp