Analysis Overview
SHA256
bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4
Threat Level: Known bad
The file bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe was found to be: Known bad.
Malicious Activity Summary
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Remcos family
Remcos
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Suspicious use of SetThreadContext
Unsigned PE
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-04-06 01:33
Signatures
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Remcos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 01:33
Reported
2024-04-06 01:36
Platform
win7-20240221-en
Max time kernel
153s
Max time network
160s
Command Line
Signatures
Remcos
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
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Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2596 set thread context of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | C:\Windows\SysWOW64\svchost.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2596 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2596 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2596 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2596 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2596 wrote to memory of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | C:\Windows\SysWOW64\svchost.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe
"C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\System32\svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rxms.duckdns.org | udp |
| US | 89.117.23.25:57832 | rxms.duckdns.org | tcp |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
Files
memory/3056-0-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/3056-2-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-4-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-6-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-5-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-8-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-9-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-10-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-11-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-12-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-13-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-19-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-20-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-22-0x00000000000D0000-0x0000000000152000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 544c6e04edc8d21a1d6f8ba848921943 |
| SHA1 | ab898b30340b4f5712fdc42046a8f0a1ac13ae3e |
| SHA256 | 1d73acd5d215395178660f67f85ae9e4ac8d69b7853611200977012d637083f8 |
| SHA512 | c8460cfce6d349ffe81966011bac21bedbbd2249a8cde7e6e8c78da79bbb3b5fd77f9350dbb7961374880b27b8598c3f102bb2488eada57fe32a3ed4c43094c8 |
memory/3056-28-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-29-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-36-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-37-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-44-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-52-0x00000000000D0000-0x0000000000152000-memory.dmp
memory/3056-53-0x00000000000D0000-0x0000000000152000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 01:33
Reported
2024-04-06 01:36
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
147s
Command Line
Signatures
Remcos
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
| Description | Indicator | Process | Target |
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Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4076 set thread context of 1276 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | \??\c:\program files (x86)\internet explorer\iexplore.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\program files (x86)\internet explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4076 wrote to memory of 1276 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | \??\c:\program files (x86)\internet explorer\iexplore.exe |
| PID 4076 wrote to memory of 1276 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | \??\c:\program files (x86)\internet explorer\iexplore.exe |
| PID 4076 wrote to memory of 1276 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | \??\c:\program files (x86)\internet explorer\iexplore.exe |
| PID 4076 wrote to memory of 1276 | N/A | C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe | \??\c:\program files (x86)\internet explorer\iexplore.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe
"C:\Users\Admin\AppData\Local\Temp\bf19328d703ff4ad6b67c9cd584147ed69ce2e82932350334f1705aad63316b4.exe"
\??\c:\program files (x86)\internet explorer\iexplore.exe
"c:\program files (x86)\internet explorer\iexplore.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=3844 --field-trial-handle=2256,i,6057863739127169200,6895476048812676039,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rxms.duckdns.org | udp |
| US | 89.117.23.25:57832 | rxms.duckdns.org | tcp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.23.117.89.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 96.136.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 50.33.237.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.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 | 142.250.181.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | pki.goog | udp |
| US | 8.8.8.8:53 | pki.goog | udp |
| US | 216.239.32.29:80 | pki.goog | tcp |
| US | 8.8.8.8:53 | 234.181.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.32.239.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 13.107.246.64:443 | tcp | |
| US | 8.8.8.8:53 | 65.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 233.143.123.92.in-addr.arpa | udp |
Files
memory/1276-0-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-1-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-2-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-4-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-6-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-7-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-8-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-9-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-10-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-11-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-14-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-15-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-20-0x0000000000730000-0x00000000007B2000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 9f44aabd90d5e31633def1f5e094c83d |
| SHA1 | 1efc90c376ebe575904bb57ea34bc6741142d2b7 |
| SHA256 | e3aa7d7ec15ca05a011754ebabd6688f9bbc806c048ad94cb62bd3d1935ca99d |
| SHA512 | 3ca0564ffadcfbb3df660c08ed05b7d0dd20b66f6626c7601c81bec6af8569564d8dda0808566b747db170f73f6a8c70f1da9de366253658ae579c4035ae9717 |
memory/1276-23-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-24-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-31-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-39-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-40-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-47-0x0000000000730000-0x00000000007B2000-memory.dmp
memory/1276-48-0x0000000000730000-0x00000000007B2000-memory.dmp