Analysis Overview
SHA256
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b
Threat Level: Known bad
The file cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.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 SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Drops file in Program Files directory
Drops file in Windows directory
Unsigned PE
Program crash
Enumerates physical storage devices
NSIS installer
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-21 14:30
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: behavioral4
Detonation Overview
Submitted
2024-05-21 14:30
Reported
2024-05-21 14:32
Platform
win10v2004-20240226-en
Max time kernel
141s
Max time network
151s
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 3932 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3932 wrote to memory of 1712 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3932 wrote to memory of 1712 | 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 432 -p 1712 -ip 1712
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 612
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4036 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
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 | 82.90.14.23.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 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| GB | 142.250.187.202:443 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 211.143.182.52.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-21 14:30
Reported
2024-05-21 14:32
Platform
win7-20240221-en
Max time kernel
143s
Max time network
121s
Command Line
Signatures
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.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 |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2388 set thread context of 2068 | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\konvoluterer\Forsikringsinspektrer.ini | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\mycelian\sempitern.ini | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe
"C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe"
C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe
"C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 68
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\nsiDC8.tmp\System.dll
| MD5 | b8992e497d57001ddf100f9c397fcef5 |
| SHA1 | e26ddf101a2ec5027975d2909306457c6f61cfbd |
| SHA256 | 98bcd1dd88642f4dd36a300c76ebb1ddfbbbc5bfc7e3b6d7435dc6d6e030c13b |
| SHA512 | 8823b1904dccfaf031068102cb1def7958a057f49ff369f0e061f1b4db2090021aa620bb8442a2a6ac9355bb74ee54371dc2599c20dc723755a46ede81533a3c |
memory/2388-33-0x0000000003830000-0x0000000005F26000-memory.dmp
memory/2388-34-0x00000000773C1000-0x00000000774C2000-memory.dmp
memory/2388-35-0x00000000773C0000-0x0000000077569000-memory.dmp
memory/2068-36-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2068-37-0x00000000773C0000-0x0000000077569000-memory.dmp
memory/2388-38-0x0000000003830000-0x0000000005F26000-memory.dmp
memory/2068-60-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2068-62-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2388-63-0x0000000003830000-0x0000000005F26000-memory.dmp
memory/2068-64-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2068-65-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2068-66-0x0000000000400000-0x0000000001462000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-21 14:30
Reported
2024-05-21 14:32
Platform
win10v2004-20240226-en
Max time kernel
142s
Max time network
157s
Command Line
Signatures
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.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 |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3192 set thread context of 1092 | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\konvoluterer\Forsikringsinspektrer.ini | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\mycelian\sempitern.ini | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe
"C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3748 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe
"C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1092 -ip 1092
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1092 -s 200
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.94.73.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.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 | 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 | 137.71.105.51.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsh49E7.tmp\System.dll
| MD5 | b8992e497d57001ddf100f9c397fcef5 |
| SHA1 | e26ddf101a2ec5027975d2909306457c6f61cfbd |
| SHA256 | 98bcd1dd88642f4dd36a300c76ebb1ddfbbbc5bfc7e3b6d7435dc6d6e030c13b |
| SHA512 | 8823b1904dccfaf031068102cb1def7958a057f49ff369f0e061f1b4db2090021aa620bb8442a2a6ac9355bb74ee54371dc2599c20dc723755a46ede81533a3c |
memory/3192-32-0x0000000004A40000-0x0000000007136000-memory.dmp
memory/3192-33-0x0000000004A40000-0x0000000007136000-memory.dmp
memory/3192-34-0x0000000076FC1000-0x00000000770E1000-memory.dmp
memory/3192-35-0x0000000010004000-0x0000000010005000-memory.dmp
memory/1092-36-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1092-37-0x0000000001660000-0x0000000003D56000-memory.dmp
memory/1092-50-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3192-51-0x0000000004A40000-0x0000000007136000-memory.dmp
memory/1092-52-0x0000000001660000-0x0000000003D56000-memory.dmp
memory/1092-53-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1092-54-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1092-55-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1092-56-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1092-57-0x0000000001660000-0x0000000003D56000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-05-21 14:30
Reported
2024-05-21 14:32
Platform
win7-20240221-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 |
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 2288 -s 224