Analysis Overview
SHA256
b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430
Threat Level: Known bad
The file b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430 was found to be: Known bad.
Malicious Activity Summary
Modifies visiblity of hidden/system files in Explorer
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-09 07:35
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-09 07:35
Reported
2024-06-09 07:38
Platform
win10v2004-20240226-en
Max time kernel
151s
Max time network
148s
Command Line
Signatures
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | C:\Users\Admin\huiopum.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\huiopum.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huiopum = "C:\\Users\\Admin\\huiopum.exe" | C:\Users\Admin\huiopum.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe | N/A |
| N/A | N/A | C:\Users\Admin\huiopum.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe
"C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe"
C:\Users\Admin\huiopum.exe
"C:\Users\Admin\huiopum.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=3756 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ns2.thepicturehut.net | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 13.107.246.64:443 | tcp | |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.179.89.13.in-addr.arpa | udp |
Files
memory/1604-0-0x0000000000400000-0x0000000000412000-memory.dmp
C:\Users\Admin\huiopum.exe
| MD5 | 5e8936e93627044c1bd244694f00eef1 |
| SHA1 | e4816e8492c1ebcb8508a299432e696933a0c7eb |
| SHA256 | 788f9d70c0bca7f0e0b16540314736ce48f8e5993dc5c36d5be2192864d5bcee |
| SHA512 | 05ce275f7846c5596ef7d0fc91067c628d803bedd1027b6ba1e1debefc5cfb304f413b69dc6831194d1ea7c6e4649d449f64acccece588777bb8c9cbddf20b2c |
memory/3876-34-0x0000000000400000-0x0000000000412000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-09 07:35
Reported
2024-06-09 07:38
Platform
win7-20240221-en
Max time kernel
150s
Max time network
126s
Command Line
Signatures
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | C:\Users\Admin\misom.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\misom.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\misom = "C:\\Users\\Admin\\misom.exe" | C:\Users\Admin\misom.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe | N/A |
| N/A | N/A | C:\Users\Admin\misom.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe
"C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe"
C:\Users\Admin\misom.exe
"C:\Users\Admin\misom.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ns1.thepicturehut.net | udp |
Files
memory/2936-0-0x0000000000400000-0x0000000000412000-memory.dmp
\Users\Admin\misom.exe
| MD5 | 43f37656dafb0331cf449cdbd49cbaa0 |
| SHA1 | adfb501a782c535788aac46b1a9a263b03d6cb10 |
| SHA256 | 533e0af2c90413cda483c46f0f64782c9de92a0def88b761ff68cb0cd3cb1969 |
| SHA512 | 3630fc2754a6e93105ff514538224d65adc11d7b54246b82f0f7a31d90fec348a199ec5e2428b7ed6321413af4292a2eeb752ea3b3027682f6def1e7ed065aeb |
memory/2744-16-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2936-15-0x0000000003700000-0x0000000003712000-memory.dmp
memory/2936-14-0x0000000003700000-0x0000000003712000-memory.dmp