Analysis Overview
SHA256
d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1
Threat Level: Known bad
The file d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Loads dropped DLL
Legitimate hosting services abused for malware hosting/C2
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Drops file in System32 directory
Drops file in Windows directory
Drops file in Program Files directory
Program crash
Unsigned PE
Enumerates physical storage devices
NSIS installer
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-22 14:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NSIS installer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral3
Detonation Overview
Submitted
2024-05-22 14:52
Reported
2024-05-22 14:55
Platform
win7-20240508-en
Max time kernel
122s
Max time network
125s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1332 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-05-22 14:52
Reported
2024-05-22 14:55
Platform
win10v2004-20240426-en
Max time kernel
145s
Max time network
135s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1840 wrote to memory of 3980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1840 wrote to memory of 3980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1840 wrote to memory of 3980 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3980 -ip 3980
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| NL | 23.62.61.113:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 113.61.62.23.in-addr.arpa | udp |
| NL | 23.62.61.113:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 14:52
Reported
2024-05-22 14:55
Platform
win7-20240419-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | drive.google.com | N/A | N/A |
| N/A | drive.google.com | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\Ranglesten\atriumgaardes.pla | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1736 set thread context of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\senegas.sed | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\resources\0409\bearlet.tor | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
| File opened for modification | C:\Windows\andenklasseskupeens\jordfyld.ini | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe
"C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe"
C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe
"C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | drive.google.com | udp |
| GB | 142.250.187.238:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| GB | 142.250.179.225:443 | drive.usercontent.google.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\nsd918.tmp\System.dll
| MD5 | 34442e1e0c2870341df55e1b7b3cccdc |
| SHA1 | 99b2fa21aead4b6ccd8ff2f6d3d3453a51d9c70c |
| SHA256 | 269d232712c86983336badb40b9e55e80052d8389ed095ebf9214964d43b6bb1 |
| SHA512 | 4a8c57fb12997438b488b862f3fc9dc0f236e07bb47b2bce6053dcb03ac7ad171842f02ac749f02dda4719c681d186330524cd2953d33cb50854844e74b33d51 |
memory/1736-14-0x00000000040D0000-0x00000000060D1000-memory.dmp
memory/1736-15-0x0000000077981000-0x0000000077A82000-memory.dmp
memory/1736-16-0x0000000077980000-0x0000000077B29000-memory.dmp
memory/2668-17-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2668-18-0x0000000077980000-0x0000000077B29000-memory.dmp
memory/1736-19-0x00000000040D0000-0x00000000060D1000-memory.dmp
memory/2668-20-0x0000000000400000-0x0000000001462000-memory.dmp
memory/1736-54-0x00000000040D0000-0x00000000060D1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 14:52
Reported
2024-05-22 14:55
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
147s
Command Line
Signatures
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | drive.google.com | N/A | N/A |
| N/A | drive.google.com | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\Ranglesten\atriumgaardes.pla | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2268 set thread context of 4924 | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\senegas.sed | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\resources\0409\bearlet.tor | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
| File opened for modification | C:\Windows\andenklasseskupeens\jordfyld.ini | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe
"C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe"
C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe
"C:\Users\Admin\AppData\Local\Temp\d5c2c232447f0e59930b03dfb417815c61fa857d6ed61237554a947e598a08f1.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| NL | 23.62.61.129:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 129.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | drive.google.com | udp |
| GB | 142.250.187.238:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 238.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| GB | 142.250.179.225:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | 225.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsg638F.tmp\System.dll
| MD5 | 34442e1e0c2870341df55e1b7b3cccdc |
| SHA1 | 99b2fa21aead4b6ccd8ff2f6d3d3453a51d9c70c |
| SHA256 | 269d232712c86983336badb40b9e55e80052d8389ed095ebf9214964d43b6bb1 |
| SHA512 | 4a8c57fb12997438b488b862f3fc9dc0f236e07bb47b2bce6053dcb03ac7ad171842f02ac749f02dda4719c681d186330524cd2953d33cb50854844e74b33d51 |
memory/2268-13-0x0000000005240000-0x0000000007241000-memory.dmp
memory/2268-14-0x0000000077D91000-0x0000000077EB1000-memory.dmp
memory/2268-15-0x00000000749E4000-0x00000000749E5000-memory.dmp
memory/4924-16-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4924-17-0x0000000001660000-0x0000000003661000-memory.dmp
memory/2268-27-0x0000000005240000-0x0000000007241000-memory.dmp
memory/4924-31-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4924-33-0x0000000001660000-0x0000000003661000-memory.dmp
memory/2268-38-0x0000000005240000-0x0000000007241000-memory.dmp