Analysis Overview
SHA256
88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83
Threat Level: Known bad
The file 88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
ModiLoader, DBatLoader
ModiLoader Second Stage
Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Loads dropped DLL
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Script User-Agent
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-26 02:37
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-26 02:37
Reported
2024-03-26 02:40
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
154s
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\1312548.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows \System32\1312548.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ejuqejhd = "C:\\Users\\Public\\Ejuqejhd.url" | C:\Users\Admin\AppData\Local\Temp\88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.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:\Windows\SysWOW64\SndVol.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.exe
"C:\Users\Admin\AppData\Local\Temp\88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.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\1312548.exe"
C:\Windows \System32\1312548.exe
"C:\Windows \System32\1312548.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\88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.exe C:\\Users\\Public\\Libraries\\Ejuqejhd.PIF
C:\Windows\SysWOW64\SndVol.exe
C:\Windows\System32\SndVol.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2016.filemail.com | udp |
| GB | 50.7.154.226:443 | 2016.filemail.com | tcp |
| GB | 50.7.154.226:443 | 2016.filemail.com | tcp |
| US | 8.8.8.8:53 | 226.154.7.50.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | officerem.duckdns.org | udp |
| US | 23.95.235.29:47212 | officerem.duckdns.org | tcp |
| N/A | 127.0.0.1:47212 | tcp | |
| US | 8.8.8.8:53 | 29.235.95.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| 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 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | 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 | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 42.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 37.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 213.143.182.52.in-addr.arpa | udp |
Files
memory/1796-0-0x0000000002180000-0x0000000002181000-memory.dmp
memory/1796-1-0x0000000002A70000-0x0000000003A70000-memory.dmp
memory/1796-2-0x0000000002A70000-0x0000000003A70000-memory.dmp
memory/1796-4-0x0000000000400000-0x000000000053C000-memory.dmp
C:\Windows \System32\1312548.exe
| MD5 | 231ce1e1d7d98b44371ffff407d68b59 |
| SHA1 | 25510d0f6353dbf0c9f72fc880de7585e34b28ff |
| SHA256 | 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96 |
| SHA512 | 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612 |
C:\Windows \System32\netutils.dll
| MD5 | fa7aa88417d0c48807144a1a48fe3fbc |
| SHA1 | 6f5ec990b12d4a6075050a94e0d68d03781fa46d |
| SHA256 | 2019dcd18ba7d5554a4a9da882740aa883941670af3de9396960081a0f8aa098 |
| SHA512 | 99b2eb6f8e7d00a3803cba229149e5e0cb67a3deb607782c55fbacd25d9c074cce83759de15490eff939d5ad98f26cdbd44395cc79ffe22753e16c3d9e3b5fff |
memory/3700-15-0x00000000613C0000-0x00000000613E3000-memory.dmp
C:\windows \system32\KDECO.bat
| MD5 | c545650595b479c81ad6b9d8882aae39 |
| SHA1 | 7a98aa2e6eee23b3c1bba876955d525bc618b3f0 |
| SHA256 | a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9 |
| SHA512 | 85ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3 |
memory/4768-17-0x0000019353800000-0x0000019353822000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hzbqvdwo.onv.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4768-27-0x00007FF840E50000-0x00007FF841911000-memory.dmp
memory/4768-28-0x000001933B500000-0x000001933B510000-memory.dmp
memory/4768-29-0x000001933B500000-0x000001933B510000-memory.dmp
memory/4768-30-0x000001933B500000-0x000001933B510000-memory.dmp
memory/4768-33-0x00007FF840E50000-0x00007FF841911000-memory.dmp
memory/3804-40-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-42-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-43-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-44-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-45-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-46-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-48-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-49-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-50-0x0000000000A00000-0x0000000001A00000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 624a19d2de07d996c1f030f7893d9b70 |
| SHA1 | ea526613a1812460d51854a3dd64cc8fdcf5cd09 |
| SHA256 | 4a0e023767f1d30fe57c7549b470e3a4a936a0e8eea47fa08a272dc847ac23ed |
| SHA512 | 038faff3681928da83ff5a04150a6e2479ddf761915fb4eff4cf4674a0ea7c008a7b832000f79e2b7276ebd927fd517f989c9cc799d2151eb4f142b549cb40aa |
memory/3804-58-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-59-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-66-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-67-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-74-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-75-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-82-0x0000000000A00000-0x0000000001A00000-memory.dmp
memory/3804-83-0x0000000000A00000-0x0000000001A00000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-26 02:37
Reported
2024-03-26 02:40
Platform
win7-20240221-en
Max time kernel
146s
Max time network
148s
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\3975271.exe | N/A |
| N/A | N/A | C:\Windows \System32\3975271.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ejuqejhd = "C:\\Users\\Public\\Ejuqejhd.url" | C:\Users\Admin\AppData\Local\Temp\88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.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:\Windows\SysWOW64\colorcpl.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.exe
"C:\Users\Admin\AppData\Local\Temp\88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.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\3975271.exe"
C:\Windows \System32\3975271.exe
"C:\Windows \System32\3975271.exe"
C:\Windows \System32\3975271.exe
"C:\Windows \System32\3975271.exe"
C:\Windows\SysWOW64\extrac32.exe
C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\88c21447120abe15f0da3d0ce1dfa63e1c5e4ef52415ed177728cd229507eb83.exe C:\\Users\\Public\\Libraries\\Ejuqejhd.PIF
C:\Windows\SysWOW64\colorcpl.exe
C:\Windows\System32\colorcpl.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2016.filemail.com | udp |
| GB | 50.7.154.226:443 | 2016.filemail.com | tcp |
| GB | 50.7.154.226:443 | 2016.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/2492-0-0x0000000000220000-0x0000000000221000-memory.dmp
memory/2492-1-0x0000000002D20000-0x0000000003D20000-memory.dmp
memory/2492-2-0x0000000002D20000-0x0000000003D20000-memory.dmp
memory/2492-4-0x0000000000220000-0x0000000000221000-memory.dmp
memory/2492-5-0x0000000000400000-0x000000000053C000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
| MD5 | 753df6889fd7410a2e9fe333da83a429 |
| SHA1 | 3c425f16e8267186061dd48ac1c77c122962456e |
| SHA256 | b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78 |
| SHA512 | 9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444 |
C:\Users\Admin\AppData\Local\Temp\Tar7AC2.tmp
| MD5 | dd73cead4b93366cf3465c8cd32e2796 |
| SHA1 | 74546226dfe9ceb8184651e920d1dbfb432b314e |
| SHA256 | a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22 |
| SHA512 | ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63 |
C:\Windows \System32\3975271.exe
| MD5 | 231ce1e1d7d98b44371ffff407d68b59 |
| SHA1 | 25510d0f6353dbf0c9f72fc880de7585e34b28ff |
| SHA256 | 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96 |
| SHA512 | 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612 |
memory/2940-67-0x0000000002450000-0x0000000002451000-memory.dmp
memory/292-84-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-86-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-87-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-88-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-89-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-91-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-92-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-93-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-94-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-97-0x0000000000430000-0x0000000001430000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | 624a19d2de07d996c1f030f7893d9b70 |
| SHA1 | ea526613a1812460d51854a3dd64cc8fdcf5cd09 |
| SHA256 | 4a0e023767f1d30fe57c7549b470e3a4a936a0e8eea47fa08a272dc847ac23ed |
| SHA512 | 038faff3681928da83ff5a04150a6e2479ddf761915fb4eff4cf4674a0ea7c008a7b832000f79e2b7276ebd927fd517f989c9cc799d2151eb4f142b549cb40aa |
memory/292-101-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-102-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-109-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-110-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-117-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-118-0x0000000000430000-0x0000000001430000-memory.dmp
memory/292-125-0x0000000000430000-0x0000000001430000-memory.dmp