Analysis Overview
SHA256
516ca1c34949d486ab72f17515cfdad238b126a043dda0d3322f00510480ce69
Threat Level: Shows suspicious behavior
The file update1503.zip was found to be: Shows suspicious behavior.
Malicious Activity Summary
Adds Run key to start application
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of WriteProcessMemory
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
outlook_office_path
outlook_win_path
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-07 19:12
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-07 19:12
Reported
2024-04-07 19:15
Platform
win10v2004-20240226-en
Max time kernel
130s
Max time network
151s
Command Line
Signatures
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\(7e89dc94745e89b44c0704984be4f377)update1503.exe = "C:\\Users\\Public\\Libraries\\(7e89dc94745e89b44c0704984be4f377)update1503.exe" | C:\Users\Admin\AppData\Local\Temp\update1503.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ipinfo.io | N/A | N/A |
| N/A | ipinfo.io | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3268 set thread context of 4168 | N/A | C:\Users\Admin\AppData\Local\Temp\update1503.exe | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3268 wrote to memory of 4168 | N/A | C:\Users\Admin\AppData\Local\Temp\update1503.exe | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe |
| PID 3268 wrote to memory of 4168 | N/A | C:\Users\Admin\AppData\Local\Temp\update1503.exe | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe |
| PID 3268 wrote to memory of 4168 | N/A | C:\Users\Admin\AppData\Local\Temp\update1503.exe | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe |
| PID 3268 wrote to memory of 4168 | N/A | C:\Users\Admin\AppData\Local\Temp\update1503.exe | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe |
| PID 3268 wrote to memory of 4168 | N/A | C:\Users\Admin\AppData\Local\Temp\update1503.exe | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe |
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\update1503.exe
"C:\Users\Admin\AppData\Local\Temp\update1503.exe"
C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3932 --field-trial-handle=2260,i,9938964625802268469,1928462186077019554,262144 --variations-seed-version /prefetch:3
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=3060 --field-trial-handle=2260,i,9938964625802268469,1928462186077019554,262144 --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 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| FI | 95.216.41.236:50500 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 236.41.216.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ipinfo.io | udp |
| US | 34.117.186.192:443 | ipinfo.io | tcp |
| US | 8.8.8.8:53 | db-ip.com | udp |
| US | 172.67.75.166:443 | db-ip.com | tcp |
| US | 8.8.8.8:53 | 192.186.117.34.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 166.75.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| DE | 142.250.186.42:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 42.186.250.142.in-addr.arpa | udp |
| FI | 95.216.41.236:50500 | tcp |
Files
memory/3268-5-0x00007FF6F6C20000-0x00007FF6F7E99000-memory.dmp
memory/4168-6-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-8-0x0000000001000000-0x0000000001152000-memory.dmp
memory/3268-7-0x00007FF6F6C20000-0x00007FF6F7E99000-memory.dmp
memory/4168-9-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-10-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-11-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-12-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-14-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-24-0x0000000001000000-0x0000000001152000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\heidilyNPDuF6RQK8\pVY3XktmXrtCWeb Data
| MD5 | fbe4c51ee21cb3ec2e3c7698c9f7bdb0 |
| SHA1 | 22f78716f3ab309bb89a86dc7f2f4f71f05e5aae |
| SHA256 | fd94eefb6e43f441bc8daafd21b51612016a8baecf93a088e91e4e3b6c0b36d0 |
| SHA512 | 6185afbbb674c2dad6a737fff3e7283633595bb8aea200b1312a98967060f3e3bd93c2f51116ce5350de6d9abd78c0de8aeb31706b85e793e00e104a08353278 |
C:\Users\Admin\AppData\Local\Temp\heidilyNPDuF6RQK8\koao7n6ynQHUWeb Data
| MD5 | 28667debbba3ba0039200b5694697077 |
| SHA1 | 57592f97bc6702bcc0cb412e8eafdd6cd23e9431 |
| SHA256 | 08b286c14b265432816d0a202daed16f15001178adfde3b9d03feda2e7cb02eb |
| SHA512 | a6e00658a2be664f2af4aa7bf9851edafdefdbab086ebcd01cddd6a7ba65a7c9acbc764a9df46feb3d45e0e983185afdddea06abb6e4de574746f52f327e1e99 |
memory/4168-70-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-73-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-79-0x0000000001000000-0x0000000001152000-memory.dmp
memory/4168-78-0x0000000001000000-0x0000000001152000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\47c44012-f333-4f11-88fd-83228eceec24.tmp
| MD5 | d751713988987e9331980363e24189ce |
| SHA1 | 97d170e1550eee4afc0af065b78cda302a97674c |
| SHA256 | 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945 |
| SHA512 | b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af |
memory/4168-94-0x0000000001000000-0x0000000001152000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
| MD5 | 20d4b8fa017a12a108c87f540836e250 |
| SHA1 | 1ac617fac131262b6d3ce1f52f5907e31d5f6f00 |
| SHA256 | 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d |
| SHA512 | 507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856 |
memory/4168-106-0x0000000001330000-0x0000000001331000-memory.dmp
memory/4168-107-0x0000000001290000-0x0000000001308000-memory.dmp
memory/4168-110-0x0000000001290000-0x0000000001308000-memory.dmp
memory/4168-111-0x0000000001000000-0x0000000001152000-memory.dmp