Analysis
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max time kernel
148s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
27-01-2023 10:56
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order Inquiry_190123.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Purchase Order Inquiry_190123.exe
Resource
win10v2004-20220901-en
General
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Target
Purchase Order Inquiry_190123.exe
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Size
7KB
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MD5
1c72fb093ace75fffb093c6541ff4940
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SHA1
7034c12131cc2e28fcf9235850a36b08e9983dce
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SHA256
f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785
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SHA512
4d713c85e2b5a818e3f5db4c7b59a820bb309c911825670b540597c9faa9d931f5648d054e19a01a48f7c97bae6dfe67b02148fb3ad58ddafdd11bb06f8a59ed
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SSDEEP
96:lTlsnKYgr+QLZCMqm18WQ2juY+wq+Df/8tEkajtR/zNt:lpQELZCMqmXjuZ+z8zaj7p
Malware Config
Extracted
remcos
28282
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
remcos.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
false
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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
gqhwjekrltlu-TOU33Q
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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/1392-56-0x0000000006490000-0x000000000672C000-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:
Purchase Order Inquiry_190123.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Eesibjdz = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gngrey\\Eesibjdz.exe\"" Purchase Order Inquiry_190123.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Purchase Order Inquiry_190123.exedescription pid process target process PID 1392 set thread context of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.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 1120 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Purchase Order Inquiry_190123.exepowershell.exedescription pid process Token: SeDebugPrivilege 1392 Purchase Order Inquiry_190123.exe Token: SeDebugPrivilege 1120 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
Purchase Order Inquiry_190123.exedescription pid process target process PID 1392 wrote to memory of 1120 1392 Purchase Order Inquiry_190123.exe powershell.exe PID 1392 wrote to memory of 1120 1392 Purchase Order Inquiry_190123.exe powershell.exe PID 1392 wrote to memory of 1120 1392 Purchase Order Inquiry_190123.exe powershell.exe PID 1392 wrote to memory of 1120 1392 Purchase Order Inquiry_190123.exe powershell.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe PID 1392 wrote to memory of 888 1392 Purchase Order Inquiry_190123.exe Purchase Order Inquiry_190123.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order Inquiry_190123.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order Inquiry_190123.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- 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\Purchase Order Inquiry_190123.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order Inquiry_190123.exe"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/888-73-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-70-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-66-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-69-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-68-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-81-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-80-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-79-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-63-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-64-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-75-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/888-76-0x0000000000432C26-mapping.dmp
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memory/888-71-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/1120-61-0x000000006ECF0000-0x000000006F29B000-memory.dmpFilesize
5.7MB
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memory/1120-57-0x0000000000000000-mapping.dmp
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memory/1120-59-0x000000006ECF0000-0x000000006F29B000-memory.dmpFilesize
5.7MB
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memory/1120-60-0x000000006ECF0000-0x000000006F29B000-memory.dmpFilesize
5.7MB
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memory/1392-54-0x0000000001130000-0x0000000001138000-memory.dmpFilesize
32KB
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memory/1392-56-0x0000000006490000-0x000000000672C000-memory.dmpFilesize
2.6MB
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memory/1392-62-0x00000000050C0000-0x0000000005140000-memory.dmpFilesize
512KB
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memory/1392-55-0x0000000074FA1000-0x0000000074FA3000-memory.dmpFilesize
8KB