Analysis
- max time kernel
148s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
16/03/2022, 04:21
General
- Target attachments_75074834.xlsm
- Size 30KB
- Sample220316-eynj2affdl
- SHA256 bd2c9564fae2f6320bfcc3601f5a45c47fd6aa13841babdf14a4108ca41d911c
Malware Config
Extracted
-
xlm4.0
-
xlm40.dropper
http://henrysfreshroast.com/6cc4ts0bkrOlXq/
Extracted
-
emotet
-
Epoch5
-
165.22.61.235:443
-
121.78.112.42:8080
-
216.10.251.121:8080
-
195.77.239.39:8080
-
195.154.146.35:443
-
68.183.93.250:443
-
139.196.72.155:8080
-
194.9.172.107:8080
-
196.44.98.190:8080
-
128.199.192.135:8080
-
5.56.132.177:8080
-
78.46.73.125:443
-
87.106.97.83:7080
-
66.42.57.149:443
-
37.44.244.177:8080
-
190.90.233.66:443
-
203.153.216.46:443
-
207.148.81.119:8080
-
103.41.204.169:8080
-
104.131.62.48:8080
Signatures
- Emotet
Emotet is a trojan that is primarily spread through spam emails.
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
- Downloads MZ/PE file
- Loads dropped DLL 2 IoCs
- Drops file in System32 directory 1 IoCs
- Checks processor information in registry 2 TTPs 3 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 behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of SetWindowsHookEx 12 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\attachments_75074834.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exeC:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Mwuexyczluvsnz\urykwtffjy.jsv"3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/376-148-0x0000000001060000-0x0000000001087000-memory.dmp
memory/1328-137-0x00007FFD04910000-0x00007FFD04920000-memory.dmp
memory/1328-139-0x00007FFD44890000-0x00007FFD44A85000-memory.dmp
memory/1328-140-0x00007FFD44890000-0x00007FFD44A85000-memory.dmp
memory/1328-141-0x00007FFD44890000-0x00007FFD44A85000-memory.dmp
memory/1328-138-0x00007FFD04910000-0x00007FFD04920000-memory.dmp
memory/1328-134-0x00007FFD04910000-0x00007FFD04920000-memory.dmp
memory/1328-136-0x00007FFD04910000-0x00007FFD04920000-memory.dmp
memory/1328-135-0x00007FFD04910000-0x00007FFD04920000-memory.dmp
memory/2912-144-0x00000000026D0000-0x00000000026F7000-memory.dmp