Analysis Overview
SHA256
373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3
Threat Level: Known bad
The file 373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
ModiLoader, DBatLoader
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
ModiLoader Second Stage
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Program crash
Unsigned PE
Script User-Agent
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-27 02:12
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-27 02:12
Reported
2024-03-27 02:15
Platform
win7-20240221-en
Max time kernel
131s
Max time network
140s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1740 wrote to memory of 2540 | N/A | C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1740 wrote to memory of 2540 | N/A | C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1740 wrote to memory of 2540 | N/A | C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1740 wrote to memory of 2540 | N/A | C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe
"C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 724
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 1021.filemail.com | udp |
| US | 23.237.82.74:443 | 1021.filemail.com | tcp |
| US | 23.237.82.74:443 | 1021.filemail.com | tcp |
Files
memory/1740-0-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/1740-1-0x0000000002D10000-0x0000000003D10000-memory.dmp
memory/1740-2-0x0000000002D10000-0x0000000003D10000-memory.dmp
memory/1740-4-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/1740-5-0x0000000000400000-0x0000000000527000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-27 02:12
Reported
2024-03-27 02:14
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
155s
Command Line
Signatures
ModiLoader, DBatLoader
Remcos
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
| Description | Indicator | Process | Target |
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ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows \System32\2226800.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows \System32\2226800.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Qbijgrcm = "C:\\Users\\Public\\Qbijgrcm.url" | C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe | N/A |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\colorcpl.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe
"C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c mkdir "\\?\C:\Windows "
C:\Windows\SysWOW64\cmd.exe
cmd /c mkdir "\\?\C:\Windows \System32"
C:\Windows\SysWOW64\cmd.exe
cmd /c "C:\Windows \System32\2226800.exe"
C:\Windows \System32\2226800.exe
"C:\Windows \System32\2226800.exe"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
C:\Windows\system32\cmd.exe
cmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
C:\Windows\SysWOW64\extrac32.exe
C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe C:\\Users\\Public\\Libraries\\Qbijgrcm.PIF
C:\Windows\SysWOW64\colorcpl.exe
C:\Windows\System32\colorcpl.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1021.filemail.com | udp |
| US | 23.237.82.74:443 | 1021.filemail.com | tcp |
| US | 23.237.82.74:443 | 1021.filemail.com | tcp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.82.237.23.in-addr.arpa | udp |
| N/A | 127.0.0.1:47212 | tcp | |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | officerem.duckdns.org | udp |
| US | 23.95.235.29:47212 | officerem.duckdns.org | tcp |
| US | 8.8.8.8:53 | 29.235.95.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.33.237.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| N/A | 127.0.0.1:47212 | tcp | |
| US | 23.95.235.29:47212 | officerem.duckdns.org | tcp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.143.182.52.in-addr.arpa | udp |
Files
memory/1380-0-0x0000000000740000-0x0000000000741000-memory.dmp
memory/1380-1-0x0000000004070000-0x0000000005070000-memory.dmp
memory/1380-2-0x0000000004070000-0x0000000005070000-memory.dmp
memory/1380-4-0x0000000000400000-0x0000000000527000-memory.dmp
C:\Windows \System32\2226800.exe
| MD5 | 231ce1e1d7d98b44371ffff407d68b59 |
| SHA1 | 25510d0f6353dbf0c9f72fc880de7585e34b28ff |
| SHA256 | 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96 |
| SHA512 | 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612 |
C:\Windows \System32\netutils.dll
| MD5 | fa7aa88417d0c48807144a1a48fe3fbc |
| SHA1 | 6f5ec990b12d4a6075050a94e0d68d03781fa46d |
| SHA256 | 2019dcd18ba7d5554a4a9da882740aa883941670af3de9396960081a0f8aa098 |
| SHA512 | 99b2eb6f8e7d00a3803cba229149e5e0cb67a3deb607782c55fbacd25d9c074cce83759de15490eff939d5ad98f26cdbd44395cc79ffe22753e16c3d9e3b5fff |
memory/740-15-0x00000000613C0000-0x00000000613E3000-memory.dmp
C:\windows \system32\KDECO.bat
| MD5 | c545650595b479c81ad6b9d8882aae39 |
| SHA1 | 7a98aa2e6eee23b3c1bba876955d525bc618b3f0 |
| SHA256 | a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9 |
| SHA512 | 85ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3 |
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2vyp501p.elz.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2036-17-0x000001B2B5A50000-0x000001B2B5A72000-memory.dmp
memory/2036-27-0x00007FFD3DA90000-0x00007FFD3E551000-memory.dmp
memory/2036-29-0x000001B2B5AB0000-0x000001B2B5AC0000-memory.dmp
memory/2036-30-0x000001B2B5AB0000-0x000001B2B5AC0000-memory.dmp
memory/2036-31-0x000001B2B5AB0000-0x000001B2B5AC0000-memory.dmp
memory/2036-34-0x00007FFD3DA90000-0x00007FFD3E551000-memory.dmp
memory/1380-35-0x0000000000740000-0x0000000000741000-memory.dmp
memory/2040-42-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-44-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-45-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-46-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-47-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-48-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-51-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-52-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-54-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-56-0x00000000006E0000-0x00000000016E0000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 4eef9168ab508697d5d0d3ef05e6785e |
| SHA1 | 09491cb90fc57aba262324f8a4c7fcb0faf4d516 |
| SHA256 | 4ff242c76ea1e366416d8b1206cef73be86c753303783f8002a83a49994101c8 |
| SHA512 | 046ce2b98b34c903bcde3c10fcd1a906aa2b090cbe2905a79e040d84e14bfe4107765518bc129e58aa2fc189e45bc21c8d12fd19990848f88f13cc3d8e71dc3e |
memory/2040-62-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-64-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-65-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-67-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-68-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-69-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-73-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-74-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-81-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-82-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-89-0x00000000006E0000-0x00000000016E0000-memory.dmp
memory/2040-90-0x00000000006E0000-0x00000000016E0000-memory.dmp