Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03-02-2023 19:23
Static task
static1
Behavioral task
behavioral1
Sample
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Resource
win10v2004-20220812-en
General
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Target
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
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Size
7KB
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MD5
b359f4af5c88b1e237db9738415b7682
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SHA1
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439
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SHA256
53ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd
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SHA512
6d4f06f36c608d3202d29629f9d9a70eadfbffbb23c7c074fbb610ed9e1926bf6e04c8dfecbbaf1d575fb2d0385d237aff2dbda322b092d4ef7728091eb596cb
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SSDEEP
96:xtEsKVeCVIP7bLp8LAn5c8aY1ej/kKV+J2qzNt:xUVVIP7bLrEOejcKYx
Malware Config
Extracted
remcos
RemoteHost
194.180.49.17:28282
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
rdfghfgjkgoighjc.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
true
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-PC1DJ2
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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startup_value
Remcos
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exerdfghfgjkgoighjc.exed7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation rdfghfgjkgoighjc.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe -
Executes dropped EXE 1 IoCs
Processes:
rdfghfgjkgoighjc.exepid process 1964 rdfghfgjkgoighjc.exe -
Adds Run key to start application 2 TTPs 5 IoCs
Processes:
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exed7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Phecxlkxbf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Zwpfblvosjv\\Phecxlkxbf.exe\"" d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\"" d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\"" d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exedescription pid process target process PID 460 set thread context of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
powershell.exepowershell.exepid process 5048 powershell.exe 5048 powershell.exe 1996 powershell.exe 1996 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exepowershell.exerdfghfgjkgoighjc.exepowershell.exedescription pid process Token: SeDebugPrivilege 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe Token: SeDebugPrivilege 5048 powershell.exe Token: SeDebugPrivilege 1964 rdfghfgjkgoighjc.exe Token: SeDebugPrivilege 1996 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exed7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exerdfghfgjkgoighjc.exedescription pid process target process PID 460 wrote to memory of 5048 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe powershell.exe PID 460 wrote to memory of 5048 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe powershell.exe PID 460 wrote to memory of 5048 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe powershell.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 460 wrote to memory of 5108 460 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 5108 wrote to memory of 1964 5108 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe rdfghfgjkgoighjc.exe PID 5108 wrote to memory of 1964 5108 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe rdfghfgjkgoighjc.exe PID 5108 wrote to memory of 1964 5108 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe rdfghfgjkgoighjc.exe PID 1964 wrote to memory of 1996 1964 rdfghfgjkgoighjc.exe powershell.exe PID 1964 wrote to memory of 1996 1964 rdfghfgjkgoighjc.exe powershell.exe PID 1964 wrote to memory of 1996 1964 rdfghfgjkgoighjc.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe"C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:460 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5048 -
C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exeC:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5108 -
C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe"C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1996
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\ProgramData\Remcos\rdfghfgjkgoighjc.exeFilesize
7KB
MD5b359f4af5c88b1e237db9738415b7682
SHA1d7fa6d87594ea4d8b5740d54fdc204b08f4e9439
SHA25653ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd
SHA5126d4f06f36c608d3202d29629f9d9a70eadfbffbb23c7c074fbb610ed9e1926bf6e04c8dfecbbaf1d575fb2d0385d237aff2dbda322b092d4ef7728091eb596cb
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C:\ProgramData\Remcos\rdfghfgjkgoighjc.exeFilesize
7KB
MD5b359f4af5c88b1e237db9738415b7682
SHA1d7fa6d87594ea4d8b5740d54fdc204b08f4e9439
SHA25653ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd
SHA5126d4f06f36c608d3202d29629f9d9a70eadfbffbb23c7c074fbb610ed9e1926bf6e04c8dfecbbaf1d575fb2d0385d237aff2dbda322b092d4ef7728091eb596cb
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.logFilesize
1KB
MD56195a91754effb4df74dbc72cdf4f7a6
SHA1aba262f5726c6d77659fe0d3195e36a85046b427
SHA2563254495a5513b37a2686a876d0040275414699e7ce760e7b5ee05e41a54b96f5
SHA512ed723d15de267390dc93263538428e2c881be3494c996a810616b470d6df7d5acfcc8725687d5c50319ebef45caef44f769bfc32e0dc3abd249dacff4a12cc89
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCacheFilesize
53KB
MD506ad34f9739c5159b4d92d702545bd49
SHA19152a0d4f153f3f40f7e606be75f81b582ee0c17
SHA256474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba
SHA512c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveFilesize
16KB
MD5121a8296c7ceedd771fe32e9d1fc484d
SHA1fd147fcbc63c7c6443c2adcf554e82e04a54d929
SHA2568a874dd3943dde2e41f4deaa6cf466d188248ea3b8d638cc1166be3adfaaa70b
SHA512e02233ee03edef8d76c124507a43d8b8c248c5835f74c3444b52f439632e87dc4dd33e573074a1ea87c645954da019bcc33a502d90d90e33c1cecc0eba078d1a
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memory/460-133-0x0000000007630000-0x0000000007652000-memory.dmpFilesize
136KB
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memory/460-132-0x00000000004A0000-0x00000000004A8000-memory.dmpFilesize
32KB
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memory/1964-146-0x0000000000000000-mapping.dmp
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memory/1996-150-0x0000000000000000-mapping.dmp
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memory/5048-137-0x00000000058D0000-0x0000000005936000-memory.dmpFilesize
408KB
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memory/5048-141-0x00000000064C0000-0x00000000064DA000-memory.dmpFilesize
104KB
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memory/5048-140-0x0000000007820000-0x0000000007E9A000-memory.dmpFilesize
6.5MB
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memory/5048-139-0x0000000005FC0000-0x0000000005FDE000-memory.dmpFilesize
120KB
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memory/5048-138-0x00000000059B0000-0x0000000005A16000-memory.dmpFilesize
408KB
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memory/5048-136-0x00000000051B0000-0x00000000057D8000-memory.dmpFilesize
6.2MB
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memory/5048-135-0x0000000004B40000-0x0000000004B76000-memory.dmpFilesize
216KB
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memory/5048-134-0x0000000000000000-mapping.dmp
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memory/5108-142-0x0000000000000000-mapping.dmp
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memory/5108-143-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/5108-144-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/5108-145-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/5108-149-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB