Analysis Overview
SHA256
ecf0f23b171f136fd346cd1943b9992486805e1546a8ce61dc4d855fe71c0820
Threat Level: Known bad
The file ecf0f23b171f136fd346cd1943b9992486805e1546a8ce61dc4d855fe71c0820.zip was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Loads dropped DLL
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Program crash
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-07 03:28
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
2024-11-07 03:28
Reported
2024-11-07 03:31
Platform
win7-20241010-en
Max time kernel
150s
Max time network
152s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2388 set thread context of 2904 | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 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\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe"
C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.evolutioncosmetics.com | udp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\nso497F.tmp\System.dll
| MD5 | be2621a78a13a56cf09e00dd98488360 |
| SHA1 | 75f0539dc6af200a07cdb056cddddec595c6cfd2 |
| SHA256 | 852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5 |
| SHA512 | b80cf1f678e6885276b9a1bfd9227374b2eb9e38bb20446d52ebe2c3dba89764aa50cb4d49df51a974478f3364b5dbcbc5b4a16dc8f1123b40c89c01725be3d1 |
memory/2388-31-0x0000000002FD0000-0x0000000004575000-memory.dmp
memory/2388-32-0x0000000002FD0000-0x0000000004575000-memory.dmp
memory/2388-33-0x00000000775C1000-0x00000000776C2000-memory.dmp
memory/2388-34-0x00000000775C0000-0x0000000077769000-memory.dmp
memory/2388-35-0x0000000002FD0000-0x0000000004575000-memory.dmp
memory/2904-37-0x00000000775C0000-0x0000000077769000-memory.dmp
memory/2904-36-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2904-39-0x0000000000400000-0x0000000001462000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-07 03:28
Reported
2024-11-07 03:31
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
145s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3136 set thread context of 2208 | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 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\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe"
C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Letter of Intent (LOI) For the Company November 2024 PDF.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.evolutioncosmetics.com | udp |
| CA | 69.27.100.185:443 | www.evolutioncosmetics.com | tcp |
| US | 8.8.8.8:53 | r10.o.lencr.org | udp |
| GB | 2.23.210.82:80 | r10.o.lencr.org | tcp |
| US | 8.8.8.8:53 | 185.100.27.69.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.169.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsoB557.tmp\System.dll
| MD5 | be2621a78a13a56cf09e00dd98488360 |
| SHA1 | 75f0539dc6af200a07cdb056cddddec595c6cfd2 |
| SHA256 | 852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5 |
| SHA512 | b80cf1f678e6885276b9a1bfd9227374b2eb9e38bb20446d52ebe2c3dba89764aa50cb4d49df51a974478f3364b5dbcbc5b4a16dc8f1123b40c89c01725be3d1 |
memory/3136-31-0x00000000041F0000-0x0000000005795000-memory.dmp
memory/3136-32-0x00000000775D1000-0x00000000776F1000-memory.dmp
memory/3136-33-0x0000000010004000-0x0000000010005000-memory.dmp
memory/3136-35-0x00000000041F0000-0x0000000005795000-memory.dmp
memory/2208-34-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2208-36-0x0000000001660000-0x0000000002C05000-memory.dmp
memory/2208-37-0x0000000077658000-0x0000000077659000-memory.dmp
memory/2208-38-0x0000000077675000-0x0000000077676000-memory.dmp
memory/2208-45-0x0000000001660000-0x0000000002C05000-memory.dmp
memory/2208-46-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2208-47-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2208-48-0x00000000775D1000-0x00000000776F1000-memory.dmp
memory/2208-49-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2208-50-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2208-53-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2208-54-0x0000000001660000-0x0000000002C05000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-07 03:28
Reported
2024-11-07 03:31
Platform
win7-20241023-en
Max time kernel
120s
Max time network
123s
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 1872 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-07 03:28
Reported
2024-11-07 03:31
Platform
win10v2004-20241007-en
Max time kernel
92s
Max time network
139s
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 2080 wrote to memory of 848 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2080 wrote to memory of 848 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2080 wrote to memory of 848 | 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 408 -p 848 -ip 848
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 848 -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 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 106.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |