Analysis
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max time kernel
47s -
max time network
51s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
03-02-2023 19:20
Static task
static1
Behavioral task
behavioral1
Sample
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Resource
win7-20220901-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
-
SHA1
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439
-
SHA256
53ddb9a75bca1115a66745b28086afbd394cef38f8437dda641b1219111df8cd
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SHA512
6d4f06f36c608d3202d29629f9d9a70eadfbffbb23c7c074fbb610ed9e1926bf6e04c8dfecbbaf1d575fb2d0385d237aff2dbda322b092d4ef7728091eb596cb
-
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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Detect PureCrypter injector 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1116-56-0x0000000007090000-0x000000000732E000-memory.dmp family_purecrypter -
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Phecxlkxbf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Zwpfblvosjv\\Phecxlkxbf.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 1 IoCs
Processes:
powershell.exepid process 800 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exepowershell.exedescription pid process Token: SeDebugPrivilege 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe Token: SeDebugPrivilege 800 powershell.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exedescription pid process target process PID 1116 wrote to memory of 800 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe powershell.exe PID 1116 wrote to memory of 800 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe powershell.exe PID 1116 wrote to memory of 800 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe powershell.exe PID 1116 wrote to memory of 800 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe powershell.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe PID 1116 wrote to memory of 1684 1116 d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe"C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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
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C:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exeC:\Users\Admin\AppData\Local\Temp\d7fa6d87594ea4d8b5740d54fdc204b08f4e9439.exe2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/800-57-0x0000000000000000-mapping.dmp
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memory/800-59-0x000000006FB00000-0x00000000700AB000-memory.dmpFilesize
5.7MB
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memory/800-60-0x000000006FB00000-0x00000000700AB000-memory.dmpFilesize
5.7MB
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memory/800-61-0x000000006FB00000-0x00000000700AB000-memory.dmpFilesize
5.7MB
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memory/1116-54-0x00000000001A0000-0x00000000001A8000-memory.dmpFilesize
32KB
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memory/1116-55-0x0000000076961000-0x0000000076963000-memory.dmpFilesize
8KB
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memory/1116-56-0x0000000007090000-0x000000000732E000-memory.dmpFilesize
2.6MB
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memory/1116-62-0x0000000005440000-0x00000000054C0000-memory.dmpFilesize
512KB
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memory/1684-63-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/1684-64-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/1684-66-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/1684-68-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/1684-69-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/1684-70-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/1684-71-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/1684-73-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB