Analysis Overview
SHA256
fdf9354cf20fb94544d6bafaa777e8a40eba2d603e648b3dbdf35344d639b19d
Threat Level: Known bad
The file Purchase Order No.STPL0042724 dated 12.12.2024.bin was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Disables Task Manager via registry modification
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Legitimate hosting services abused for malware hosting/C2
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Suspicious use of SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-15 19:53
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
2024-12-15 19:53
Reported
2024-12-15 19:56
Platform
win10v2004-20241007-en
Max time kernel
140s
Max time network
144s
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\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.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-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.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 |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4912 set thread context of 4492 | N/A | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.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\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe"
C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order No.STPL0042724 dated 12.12.2024.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.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 |
| 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 |
| FR | 142.250.74.225:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | 225.74.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| DE | 193.122.6.168:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | 168.6.122.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 104.21.67.152:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | 152.67.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.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 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nss80DA.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/4912-13-0x0000000003260000-0x0000000005B42000-memory.dmp
memory/4912-14-0x0000000077AE1000-0x0000000077C01000-memory.dmp
memory/4912-15-0x0000000003260000-0x0000000005B42000-memory.dmp
memory/4492-16-0x00000000016E0000-0x0000000003FC2000-memory.dmp
memory/4492-29-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/4492-30-0x00000000016E0000-0x0000000003FC2000-memory.dmp
memory/4492-31-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/4492-32-0x0000000000480000-0x000000000049E000-memory.dmp
memory/4492-33-0x0000000036E20000-0x00000000373C4000-memory.dmp
memory/4492-34-0x0000000036D20000-0x0000000036DBC000-memory.dmp
memory/4492-35-0x0000000037770000-0x0000000037802000-memory.dmp
memory/4492-36-0x0000000037810000-0x0000000037860000-memory.dmp
memory/4492-37-0x00000000379B0000-0x0000000037B72000-memory.dmp
memory/4492-39-0x0000000037C30000-0x0000000037C3A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-15 19:53
Reported
2024-12-15 19:56
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
145s
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 1528 wrote to memory of 1940 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1528 wrote to memory of 1940 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1528 wrote to memory of 1940 | 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 412 -p 1940 -ip 1940
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.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 |