Analysis Overview
SHA256
a8a729321acf73eb7bcc920c4957fa3f3ba7c20ac95c1080ed8fc9e842eb071e
Threat Level: Known bad
The file a8a729321acf73eb7bcc920c4957fa3f3ba7c20ac95c1080ed8fc9e842eb071e was found to be: Known bad.
Malicious Activity Summary
Emotet
Emotet family
Blocklisted process makes network request
Loads dropped DLL
Drops file in System32 directory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-13 17:52
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-13 17:52
Reported
2024-11-13 17:55
Platform
win7-20241010-en
Max time kernel
136s
Max time network
151s
Command Line
Signatures
Emotet
Emotet family
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\Jujyyngas\byjdkeic.kpv | C:\Windows\SysWOW64\rundll32.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xklhooztacl.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xklhooztacl.dll,#1
C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Jujyyngas\byjdkeic.kpv",PNGJXBqC
C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Jujyyngas\byjdkeic.kpv",#1
Network
| Country | Destination | Domain | Proto |
| MX | 132.248.38.158:80 | tcp | |
| MX | 132.248.38.158:80 | tcp | |
| TH | 203.157.152.9:7080 | tcp | |
| TH | 203.157.152.9:7080 | tcp | |
| SG | 157.245.145.87:443 | tcp | |
| SG | 157.245.145.87:443 | tcp |
Files
memory/2796-0-0x0000000000120000-0x000000000013F000-memory.dmp
memory/2796-1-0x0000000010000000-0x0000000010023000-memory.dmp
memory/2796-2-0x0000000010000000-0x0000000010023000-memory.dmp
memory/2924-3-0x0000000010000000-0x0000000010058000-memory.dmp
memory/2924-4-0x0000000010000000-0x0000000010023000-memory.dmp
memory/2924-5-0x0000000010000000-0x0000000010023000-memory.dmp
memory/2676-6-0x0000000010000000-0x0000000010058000-memory.dmp
memory/2676-7-0x0000000010000000-0x0000000010023000-memory.dmp
memory/2676-8-0x0000000010000000-0x0000000010023000-memory.dmp
memory/2676-9-0x0000000010000000-0x0000000010058000-memory.dmp
memory/2676-10-0x0000000010000000-0x0000000010023000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 17:52
Reported
2024-11-13 17:55
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
156s
Command Line
Signatures
Emotet
Emotet family
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\Nphnzgrxuuyeghmm\ieggaiolfsvfpou.ixc | C:\Windows\SysWOW64\rundll32.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4792 wrote to memory of 1364 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4792 wrote to memory of 1364 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4792 wrote to memory of 1364 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1364 wrote to memory of 4716 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1364 wrote to memory of 4716 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1364 wrote to memory of 4716 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xklhooztacl.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xklhooztacl.dll,#1
C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Nphnzgrxuuyeghmm\ieggaiolfsvfpou.ixc",JrcDyDPwdpaq
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
Files
memory/1364-0-0x0000000001060000-0x000000000107F000-memory.dmp
memory/1364-1-0x0000000010000000-0x0000000010023000-memory.dmp
memory/1364-3-0x0000000010000000-0x0000000010023000-memory.dmp
C:\Windows\SysWOW64\Nphnzgrxuuyeghmm\ieggaiolfsvfpou.ixc
| MD5 | 3e1249e4d0b0b61d493da93139b9f3a4 |
| SHA1 | 82863b73820e293793dc90da9635c390fc928ef7 |
| SHA256 | 03ff40768f2c5dfb8c60c977b173ab72abc0932ccd13d139115bf7f0ddcdb323 |
| SHA512 | 4cd7757a187ff99034347bd125e98170832e193ad13f63754f3ee1a159f0d72c59abcd2f9755869ce533c765b9664603c6c38961c49149ea042e7e6894a9aef6 |