Analysis Overview
SHA256
67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518
Threat Level: Known bad
The file 67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
Remcos
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
Enumerates physical storage devices
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Script User-Agent
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-04 01:54
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-04 01:54
Reported
2024-04-04 01:57
Platform
win7-20240221-en
Max time kernel
146s
Max time network
150s
Command Line
Signatures
ModiLoader, DBatLoader
Remcos
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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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\6252680.exe | N/A |
| N/A | N/A | C:\Windows \System32\6252680.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Uajcyryw = "C:\\Users\\Public\\Uajcyryw.url" | C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe | N/A |
Enumerates physical storage devices
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe
"C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.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\6252680.exe"
C:\Windows \System32\6252680.exe
"C:\Windows \System32\6252680.exe"
C:\Windows \System32\6252680.exe
"C:\Windows \System32\6252680.exe"
C:\Windows\SysWOW64\extrac32.exe
C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe C:\\Users\\Public\\Libraries\\Uajcyryw.PIF
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2017.filemail.com | udp |
| GB | 50.7.154.234:443 | 2017.filemail.com | tcp |
| GB | 50.7.154.234:443 | 2017.filemail.com | tcp |
| N/A | 127.0.0.1:47212 | 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 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
Files
memory/2684-0-0x0000000000220000-0x0000000000221000-memory.dmp
memory/2684-1-0x0000000003360000-0x0000000004360000-memory.dmp
memory/2684-2-0x0000000003360000-0x0000000004360000-memory.dmp
memory/2684-4-0x0000000000400000-0x00000000005AF000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
| MD5 | 29f65ba8e88c063813cc50a4ea544e93 |
| SHA1 | 05a7040d5c127e68c25d81cc51271ffb8bef3568 |
| SHA256 | 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184 |
| SHA512 | e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa |
C:\Users\Admin\AppData\Local\Temp\Tar5EBA.tmp
| MD5 | 435a9ac180383f9fa094131b173a2f7b |
| SHA1 | 76944ea657a9db94f9a4bef38f88c46ed4166983 |
| SHA256 | 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34 |
| SHA512 | 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a |
C:\Windows \System32\6252680.exe
| MD5 | 231ce1e1d7d98b44371ffff407d68b59 |
| SHA1 | 25510d0f6353dbf0c9f72fc880de7585e34b28ff |
| SHA256 | 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96 |
| SHA512 | 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612 |
memory/2456-66-0x0000000000730000-0x0000000000731000-memory.dmp
memory/2684-82-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-84-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-85-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-86-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-87-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-88-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-89-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-90-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-91-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-95-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-96-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 778bfb8a98be449c9b8b5f38da47a7e8 |
| SHA1 | a0ffd6c714001a0d1c713cc6ba781eebf12b494c |
| SHA256 | 9680097cce4b7d464c7e966a753657e27eda0a963cf5158c8154a1b600e33086 |
| SHA512 | 7bf92704f0bbe4aebcc4d0dfb1bd37f2d7d9a08027117a26c56d012a7615ae3f12635bead3a096e3fa6f8a9e707c1adbf09626feb049be634f4a2fea5cc7998f |
memory/2684-106-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-107-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-116-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-117-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-127-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-128-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-138-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
memory/2684-139-0x0000000015DE0000-0x0000000016DE0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-04 01:54
Reported
2024-04-04 01:57
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
ModiLoader, DBatLoader
Remcos
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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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\3818416.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows \System32\3818416.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Uajcyryw = "C:\\Users\\Public\\Uajcyryw.url" | C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.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 |
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:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe
"C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.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\3818416.exe"
C:\Windows \System32\3818416.exe
"C:\Windows \System32\3818416.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\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe C:\\Users\\Public\\Libraries\\Uajcyryw.PIF
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.66.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2017.filemail.com | udp |
| GB | 50.7.154.234:443 | 2017.filemail.com | tcp |
| GB | 50.7.154.234:443 | 2017.filemail.com | tcp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 234.154.7.50.in-addr.arpa | udp |
| N/A | 127.0.0.1:47212 | 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 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 29.235.95.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.33.237.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| IE | 52.111.236.21:443 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/3084-0-0x0000000000A60000-0x0000000000A61000-memory.dmp
memory/3084-1-0x00000000029A0000-0x00000000039A0000-memory.dmp
memory/3084-2-0x00000000029A0000-0x00000000039A0000-memory.dmp
memory/3084-4-0x0000000000400000-0x00000000005AF000-memory.dmp
C:\Windows \System32\3818416.exe
| MD5 | 231ce1e1d7d98b44371ffff407d68b59 |
| SHA1 | 25510d0f6353dbf0c9f72fc880de7585e34b28ff |
| SHA256 | 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96 |
| SHA512 | 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612 |
C:\Windows \System32\netutils.dll
| MD5 | 8541304aadba4ae8620bb2699f6e0437 |
| SHA1 | e0b28a6ecd32d3789433217364c1006de9892df8 |
| SHA256 | 50573c81e5773c13a5411e8446d7fb17956865675782239818f7affd40a2fecb |
| SHA512 | c18b1233c138229705242e1cdc00970e45e414d8da9c643b1196ec9de261ae18076e22bed6fcc48c07d1f0e851469db9147f083f3c3c76a26b75994419392455 |
memory/4212-15-0x00000000613C0000-0x00000000613E3000-memory.dmp
C:\windows \system32\KDECO.bat
| MD5 | c545650595b479c81ad6b9d8882aae39 |
| SHA1 | 7a98aa2e6eee23b3c1bba876955d525bc618b3f0 |
| SHA256 | a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9 |
| SHA512 | 85ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3 |
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_riwxxjtb.j0v.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4172-17-0x0000027D674C0000-0x0000027D674E2000-memory.dmp
memory/4172-27-0x00007FFD5EBC0000-0x00007FFD5F681000-memory.dmp
memory/4172-28-0x0000027D674F0000-0x0000027D67500000-memory.dmp
memory/4172-29-0x0000027D674F0000-0x0000027D67500000-memory.dmp
memory/4172-32-0x00007FFD5EBC0000-0x00007FFD5F681000-memory.dmp
memory/3084-38-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-40-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-42-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-43-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-44-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-45-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-46-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-47-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-48-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-52-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-53-0x0000000015420000-0x0000000016420000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 182376cdc01476d461d7a4662d543cbe |
| SHA1 | 7a06e5f36acf182082086f4f03736381da60e905 |
| SHA256 | fbe7645e1623139d0c8e65a7c30f30b7e5f659f1ee8a2369e13084905e765aa8 |
| SHA512 | 6714d196312e921bcb097833d83341b3816df1d7363f228c79572a4cb91cb8cddddd5c8b636b138bed632c05438fb6fcc674d0ce7a2a07e3040687c081c0eba4 |
memory/3084-63-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-74-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-75-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-96-0x0000000015420000-0x0000000016420000-memory.dmp
memory/3084-97-0x0000000015420000-0x0000000016420000-memory.dmp