Analysis Overview
SHA256
0ff51f1bfcef0cabf76af8a2c9bb5c01aef4940a97c9b5cebe83cddf62d5be77
Threat Level: Known bad
The file PAYMENTADVICE750013-10129943-81347-pdf.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Disables Task Manager via registry modification
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Loads dropped DLL
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Legitimate hosting services abused for malware hosting/C2
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
System Location Discovery: System Language Discovery
Program crash
Unsigned PE
Enumerates physical storage devices
outlook_office_path
Suspicious behavior: MapViewOfSection
outlook_win_path
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-18 11:44
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-18 11:44
Reported
2024-12-18 11:46
Platform
win7-20240903-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Disables Task Manager via registry modification
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Reads user/profile data of web browsers
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 |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\hjemmecomputeren.Pot | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2076 set thread context of 1872 | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe"
C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | drive.google.com | udp |
| FR | 142.250.75.238:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| FR | 142.250.179.67:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | o.pki.goog | udp |
| FR | 142.250.179.67:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| FR | 142.250.74.225:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| US | 193.122.130.0:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 104.21.67.152:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.252.143:80 | crl.microsoft.com | tcp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| GB | 2.18.109.131:80 | www.microsoft.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\nsy7FCB.tmp\System.dll
| MD5 | ee260c45e97b62a5e42f17460d406068 |
| SHA1 | df35f6300a03c4d3d3bd69752574426296b78695 |
| SHA256 | e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27 |
| SHA512 | a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3 |
memory/2076-16-0x0000000002DF0000-0x0000000005C76000-memory.dmp
memory/2076-18-0x00000000774C0000-0x0000000077669000-memory.dmp
memory/2076-17-0x00000000774C1000-0x00000000775C2000-memory.dmp
memory/2076-19-0x0000000002DF0000-0x0000000005C76000-memory.dmp
memory/1872-20-0x00000000774C0000-0x0000000077669000-memory.dmp
memory/1872-40-0x0000000000460000-0x00000000014C2000-memory.dmp
memory/1872-41-0x0000000000460000-0x00000000014C2000-memory.dmp
memory/1872-42-0x0000000000460000-0x000000000047E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-18 11:44
Reported
2024-12-18 11:46
Platform
win10v2004-20241007-en
Max time kernel
147s
Max time network
150s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Disables Task Manager via registry modification
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.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 |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\hjemmecomputeren.Pot | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3528 set thread context of 3100 | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3528 wrote to memory of 3100 | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe |
| PID 3528 wrote to memory of 3100 | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe |
| PID 3528 wrote to memory of 3100 | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe |
| PID 3528 wrote to memory of 3100 | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe |
| PID 3528 wrote to memory of 3100 | N/A | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe |
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe"
C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENTADVICE750013-10129943-81347-pdf.exe"
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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.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 | drive.google.com | udp |
| FR | 142.250.75.238:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| FR | 142.250.179.67:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | o.pki.goog | udp |
| FR | 142.250.179.67:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| FR | 142.250.74.225:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | 238.75.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 225.74.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| BR | 132.226.247.73:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 172.67.177.134:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | 73.247.226.132.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.177.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.telegram.org | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| US | 8.8.8.8:53 | 220.167.154.149.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsy8FCD.tmp\System.dll
| MD5 | ee260c45e97b62a5e42f17460d406068 |
| SHA1 | df35f6300a03c4d3d3bd69752574426296b78695 |
| SHA256 | e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27 |
| SHA512 | a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3 |
memory/3528-14-0x0000000002A60000-0x00000000058E6000-memory.dmp
memory/3528-15-0x00000000777F1000-0x0000000077911000-memory.dmp
memory/3528-16-0x0000000010004000-0x0000000010005000-memory.dmp
memory/3528-17-0x0000000002A60000-0x00000000058E6000-memory.dmp
memory/3100-18-0x00000000016C0000-0x0000000004546000-memory.dmp
memory/3100-31-0x0000000000460000-0x00000000016B4000-memory.dmp
memory/3100-32-0x0000000000460000-0x000000000047E000-memory.dmp
memory/3100-33-0x0000000037250000-0x00000000377F4000-memory.dmp
memory/3100-34-0x0000000037850000-0x00000000378EC000-memory.dmp
memory/3100-35-0x0000000037D00000-0x0000000037D92000-memory.dmp
memory/3100-36-0x0000000037DD0000-0x0000000037E20000-memory.dmp
memory/3100-38-0x00000000016C0000-0x0000000004546000-memory.dmp
memory/3100-39-0x0000000037F70000-0x0000000038132000-memory.dmp
memory/3100-40-0x00000000381F0000-0x00000000381FA000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-12-18 11:44
Reported
2024-12-18 11:46
Platform
win7-20241010-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
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 |
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 2028 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-12-18 11:44
Reported
2024-12-18 11:46
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
149s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
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 |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1820 wrote to memory of 1996 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1820 wrote to memory of 1996 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1820 wrote to memory of 1996 | 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 184 -p 1996 -ip 1996
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.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 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 85.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |