Analysis Overview
SHA256
f377f9ebb865d686833a830718e6d4eb3898a20e87b0b89e26436c10496c5054
Threat Level: Known bad
The file doc_00394039424.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
NirSoft WebBrowserPassView
Detected Nirsoft tools
NirSoft MailPassView
Command and Scripting Interpreter: PowerShell
Reads user/profile data of web browsers
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Accesses Microsoft Outlook accounts
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Scheduled Task/Job: Scheduled Task
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-23 07:08
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-23 07:08
Reported
2024-07-23 07:09
Platform
win10v2004-20240709-en
Max time kernel
57s
Max time network
50s
Command Line
Signatures
Remcos
Detected Nirsoft tools
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NirSoft WebBrowserPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Reads user/profile data of web browsers
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-QBT08L = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-QBT08L = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-QBT08L = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-QBT08L = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3236 set thread context of 32 | N/A | C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe | C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe |
| PID 1948 set thread context of 1824 | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe |
| PID 1824 set thread context of 1540 | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 1824 set thread context of 320 | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe |
| PID 1824 set thread context of 4376 | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe |
| PID 1824 set thread context of 2540 | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe
"C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AZjibU.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AZjibU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC4D6.tmp"
C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe
"C:\Users\Admin\AppData\Local\Temp\doc_00394039424.exe"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AZjibU.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AZjibU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE94.tmp"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\sbeeutuxpkbbgljmjdlxohmevj"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\dwjwvleqdstgrrfytoxyruhnwxmqt"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\dwjwvleqdstgrrfytoxyruhnwxmqt"
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\nqopvdpsralltxtckykaczbefedruxhqk"
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 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 107.173.4.16:2404 | tcp | |
| US | 8.8.8.8:53 | 16.4.173.107.in-addr.arpa | udp |
| US | 107.173.4.16:2404 | 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 | 50.33.237.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
Files
memory/3236-0-0x000000007445E000-0x000000007445F000-memory.dmp
memory/3236-1-0x0000000000680000-0x0000000000764000-memory.dmp
memory/3236-2-0x00000000055A0000-0x0000000005B44000-memory.dmp
memory/3236-3-0x0000000005090000-0x0000000005122000-memory.dmp
memory/3236-4-0x0000000005030000-0x000000000503A000-memory.dmp
memory/3236-5-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3236-6-0x00000000053C0000-0x000000000545C000-memory.dmp
memory/3236-7-0x0000000005300000-0x0000000005310000-memory.dmp
memory/3236-8-0x0000000005590000-0x000000000559E000-memory.dmp
memory/3236-9-0x0000000006380000-0x0000000006440000-memory.dmp
memory/4744-14-0x0000000004EA0000-0x0000000004ED6000-memory.dmp
memory/4744-15-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/4744-17-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/4744-16-0x0000000005510000-0x0000000005B38000-memory.dmp
memory/4744-18-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/4744-20-0x0000000005CF0000-0x0000000005D56000-memory.dmp
memory/4744-19-0x0000000005480000-0x00000000054A2000-memory.dmp
memory/4744-28-0x0000000005E10000-0x0000000005E76000-memory.dmp
memory/4340-27-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/4744-40-0x0000000005F80000-0x00000000062D4000-memory.dmp
memory/32-39-0x0000000000400000-0x0000000000482000-memory.dmp
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
| MD5 | e34683e560b0c2a5cddcffe98956ea62 |
| SHA1 | 89a3dc3e4b06a8c4bd94bffc48adac82e620d910 |
| SHA256 | f377f9ebb865d686833a830718e6d4eb3898a20e87b0b89e26436c10496c5054 |
| SHA512 | 4bf4a8fef3b740ba3e6a04bedaaa90970a60b72fc950d53de6e2bf597d89d5d399f9258f9f8088f0ea6304bfa219c5537271c9df59c463893d9589370a27ebff |
memory/4340-42-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3236-49-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/32-41-0x0000000000400000-0x0000000000482000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpC4D6.tmp
| MD5 | 166923428686b614a2fc9030a06e9da4 |
| SHA1 | ee3993fdffe5d11f0ac7a3422ef3fedd28a03ee6 |
| SHA256 | c2491db4cdb9e806c60ee47a115fb15c444513480d6fc866412652f7f88bb89f |
| SHA512 | 25397ba66054ff5d6ad1615feb0a58c2807d87f250474f11b744da824f665f96b47dfbbb1509e5685a1c24a15de5e8e6643d29caf6473906f0e8f5bca8fcc2fc |
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_muo1wn41.qyp.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4744-99-0x0000000006490000-0x00000000064DC000-memory.dmp
memory/4744-98-0x0000000006440000-0x000000000645E000-memory.dmp
memory/4744-111-0x0000000070690000-0x00000000706DC000-memory.dmp
memory/4744-110-0x0000000006A20000-0x0000000006A52000-memory.dmp
memory/4744-121-0x0000000007410000-0x000000000742E000-memory.dmp
memory/4744-122-0x0000000007640000-0x00000000076E3000-memory.dmp
memory/4340-123-0x0000000070690000-0x00000000706DC000-memory.dmp
memory/4340-133-0x0000000007630000-0x0000000007CAA000-memory.dmp
memory/4744-134-0x0000000007770000-0x000000000778A000-memory.dmp
memory/4744-135-0x00000000077E0000-0x00000000077EA000-memory.dmp
memory/4744-136-0x00000000079F0000-0x0000000007A86000-memory.dmp
memory/4340-137-0x00000000071F0000-0x0000000007201000-memory.dmp
memory/4340-138-0x0000000007220000-0x000000000722E000-memory.dmp
memory/4744-139-0x00000000079B0000-0x00000000079C4000-memory.dmp
memory/4340-140-0x0000000007330000-0x000000000734A000-memory.dmp
memory/4340-141-0x0000000007310000-0x0000000007318000-memory.dmp
memory/4744-145-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/4340-144-0x0000000074450000-0x0000000074C00000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
| MD5 | 968cb9309758126772781b83adb8a28f |
| SHA1 | 8da30e71accf186b2ba11da1797cf67f8f78b47c |
| SHA256 | 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a |
| SHA512 | 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3 |
memory/5080-158-0x0000000006060000-0x00000000063B4000-memory.dmp
memory/1824-165-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1824-162-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1824-161-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1540-166-0x0000000000A50000-0x0000000000B34000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | ab63e7116c4ed149d6ee04238fa31964 |
| SHA1 | a67369f5f7622c48d97528ca478756d2172e8b6f |
| SHA256 | 19fd08b9dff9e4e654c13c693d8257dbe1cd595fa49801e74dc7dec14cb8ccd6 |
| SHA512 | c3678334adcb0fa5357fed0522f81c714dff74f05b5963b524037980616f52b8027f2675bc0012f371602117bf64e67ab93b4ee9bae11d0b56b684534edace32 |
memory/5080-178-0x0000000006AB0000-0x0000000006AFC000-memory.dmp
memory/1824-179-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1824-180-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1824-181-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1824-182-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5080-183-0x0000000074CE0000-0x0000000074D2C000-memory.dmp
memory/5080-193-0x0000000007770000-0x0000000007813000-memory.dmp
memory/3488-194-0x0000000074CE0000-0x0000000074D2C000-memory.dmp
memory/1824-205-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5080-206-0x0000000007AA0000-0x0000000007AB1000-memory.dmp
memory/5080-207-0x0000000007AF0000-0x0000000007B04000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | ed4bd0d8aa160368486a32d54be957f0 |
| SHA1 | 7786b8dddade7ce53296e55c7a25c64b0c6605d8 |
| SHA256 | a18ff4a181d1dfe57a596510c8b1bf3c411c5c0f7102de3b98ab3d2f73fc16c3 |
| SHA512 | 81be809f46084cb1d1c7888f0b1992a79a4ae078fae0343f1a0add597ba0ff3577aaefe399f24b17900f34e3be6540566d2513675f39a4bf6629b81c1b5b2973 |
memory/1824-211-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1824-212-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4376-219-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2540-225-0x0000000000400000-0x0000000000424000-memory.dmp
memory/320-220-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2540-224-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2540-222-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4376-221-0x0000000000400000-0x0000000000462000-memory.dmp
memory/320-215-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4376-217-0x0000000000400000-0x0000000000462000-memory.dmp
memory/320-213-0x0000000000400000-0x0000000000478000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sbeeutuxpkbbgljmjdlxohmevj
| MD5 | 1d22632ab7786a15873206bd9aeaaf47 |
| SHA1 | f982816e813cfdd43ad3339fa6ca7bf2425651e7 |
| SHA256 | c26d371c3209dea4e8cb298ab279746f0209643a1ef95ff627e2cfe193be838b |
| SHA512 | 456ee2bf5faefb56b5c9864ecb340293412c0ab50d47ff8ead5b0db88f3e61e74278a46063d4b816e1143020344add8bfd8f6baac142d984693e0d7be72e4ae0 |
memory/1824-231-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1824-235-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1824-234-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1824-236-0x0000000000400000-0x0000000000482000-memory.dmp