Analysis Overview
SHA256
81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0e
Threat Level: Known bad
The file 81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN was found to be: Known bad.
Malicious Activity Summary
Remcos family
Remcos
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-31 01:53
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-31 01:53
Reported
2024-10-31 01:55
Platform
win7-20240903-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Remcos
Remcos family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe" | C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2724 set thread context of 1528 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe
"C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.18.190.73:80 | crl.microsoft.com | tcp |
Files
memory/2660-0-0x0000000074971000-0x0000000074972000-memory.dmp
memory/2660-1-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/2660-2-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/2660-12-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/2660-13-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/2660-25-0x0000000074970000-0x0000000074F1B000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
| MD5 | b34dbb6ed63233fe7ea5c0146a2b5c23 |
| SHA1 | 31b625ea0c4c97145607dd8122645e8321071857 |
| SHA256 | febbd77a8822294f32112f2ae1fa0043453922de0317a531489bccc9047f3c10 |
| SHA512 | 158da7d247fc9d181578f2df385b8f8e9d6ae63fdc9e648f89ebea898892e8739f6264d36f5e210ed24963d4e37fcce0fa70fed51a7e4bcb790952a64325fa69 |
memory/2724-33-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/2724-34-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/2660-32-0x0000000074970000-0x0000000074F1B000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
| MD5 | c01e2beaf749cb3adf82fdc48f03a6ea |
| SHA1 | 55e7eccaeb91c3fd6fe11dada7b908fab873e908 |
| SHA256 | fd23f5aa5d36e9b4f682f5e235adf3216994f449b6f813060319757f819586c4 |
| SHA512 | 18c587f0da748089ebdfe0dbadf28b5e01e1d9e49f7cec698bfba00a07bb5710bc8a5ef85c09e251bb9829e6d52cc468f9c8c456b95076ae090e5880671b30d5 |
C:\Users\Admin\AppData\Local\Temp\Cab1767.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
memory/2724-43-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/2724-44-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/1528-45-0x0000000000080000-0x0000000000097000-memory.dmp
memory/2724-58-0x0000000074970000-0x0000000074F1B000-memory.dmp
memory/1528-55-0x0000000000080000-0x0000000000097000-memory.dmp
memory/1528-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1528-50-0x0000000000080000-0x0000000000097000-memory.dmp
memory/1528-51-0x0000000000080000-0x0000000000097000-memory.dmp
memory/1528-48-0x0000000000080000-0x0000000000097000-memory.dmp
memory/1528-47-0x0000000000080000-0x0000000000097000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-31 01:53
Reported
2024-10-31 01:55
Platform
win10v2004-20241007-en
Max time kernel
107s
Max time network
108s
Command Line
Signatures
Remcos
Remcos family
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe" | C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2128 set thread context of 1308 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe
"C:\Users\Admin\AppData\Local\Temp\81f513aa3c6e025bede4da320fd6b62a439b0842f1a3a1d431c5eb8dae6dab0eN.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.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 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
Files
memory/468-0-0x0000000074EF2000-0x0000000074EF3000-memory.dmp
memory/468-1-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/468-2-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/468-5-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/468-6-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/468-19-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/468-18-0x0000000074EF2000-0x0000000074EF3000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
| MD5 | d179fc499f2a69c56bef590bc7d4cbfd |
| SHA1 | c8547d79da66e25ca291e71b8331764931f34083 |
| SHA256 | 93fd6290a6b69d69a9074f596cf2ae553e741e4be51adcec7733f4ca46249c2d |
| SHA512 | 551ddf99f0e28a9f703a792bf83fa3a6b2c5c8840a75b5e4d85dec0bc8698569c1af5e84eb8d68131feb1bf0f801fb645f59222dbec14f1ae4b2fb03b8546d9d |
memory/468-30-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/2128-31-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/2128-32-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/2128-34-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/2128-33-0x0000000074EF0000-0x00000000754A1000-memory.dmp
memory/1308-37-0x0000000000540000-0x0000000000557000-memory.dmp
memory/2128-41-0x0000000074EF0000-0x00000000754A1000-memory.dmp