Analysis Overview
SHA256
4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946
Threat Level: Known bad
The file 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946 was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Loads dropped DLL
Checks QEMU agent file
Checks installed software on the system
Suspicious use of SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-07-13 20:18
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-07-13 20:18
Reported
2023-07-13 20:21
Platform
win10-20230703-en
Max time kernel
149s
Max time network
153s
Command Line
Signatures
Guloader,Cloudeye
Checks QEMU agent file
| Description | Indicator | Process | Target |
| File opened (read-only) | C:\Program Files\Qemu-ga\qemu-ga.exe | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe | N/A |
| File opened (read-only) | C:\Program Files\Qemu-ga\qemu-ga.exe | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe | N/A |
Checks installed software on the system
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3576 set thread context of 4936 | N/A | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Fonts\cardiotrophia\Kommastningerne.gen | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe
"C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe"
C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe
"C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | cdn.discordapp.com | udp |
| US | 162.159.135.233:443 | cdn.discordapp.com | tcp |
| US | 8.8.8.8:53 | 233.135.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa | udp |
| US | 8.8.8.8:53 | 126.21.238.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.77.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 38.148.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.173.189.20.in-addr.arpa | udp |
Files
\Users\Admin\AppData\Local\Temp\nsfD1D8.tmp\System.dll
| MD5 | a4dd044bcd94e9b3370ccf095b31f896 |
| SHA1 | 17c78201323ab2095bc53184aa8267c9187d5173 |
| SHA256 | 2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc |
| SHA512 | 87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a |
memory/3576-125-0x0000000003F70000-0x0000000007185000-memory.dmp
memory/3576-126-0x0000000003F70000-0x0000000007185000-memory.dmp
memory/3576-127-0x00007FFF55EA0000-0x00007FFF5607B000-memory.dmp
memory/3576-128-0x0000000077091000-0x00000000771A4000-memory.dmp
memory/3576-129-0x0000000010000000-0x0000000010006000-memory.dmp
memory/4936-130-0x0000000000400000-0x0000000001783000-memory.dmp
memory/4936-132-0x0000000001790000-0x00000000049A5000-memory.dmp
memory/4936-133-0x0000000000400000-0x0000000001783000-memory.dmp
memory/4936-134-0x0000000001790000-0x00000000049A5000-memory.dmp
memory/4936-135-0x00007FFF55EA0000-0x00007FFF5607B000-memory.dmp
memory/4936-136-0x0000000077116000-0x0000000077117000-memory.dmp
memory/4936-143-0x0000000000400000-0x0000000001783000-memory.dmp
memory/4936-145-0x0000000077091000-0x00000000771A4000-memory.dmp