Analysis
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max time kernel
140s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
02-10-2024 13:16
Static task
static1
Behavioral task
behavioral1
Sample
8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
Resource
win7-20240903-en
General
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Target
8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
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Size
2.2MB
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MD5
d8678cb7b1d3332b939c548edb8f4e10
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SHA1
30ed6e580a8dc070b849c97460d7384dd94af766
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SHA256
8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadf
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SHA512
ce354076836a47fd48cecd802736a6392d1ac8fc22291f579434d7dfc9b4d5f1bd307974dbd44a198146ed0b033f95e3e35f39ef2958804b6d011d26767b00fd
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SSDEEP
24576:8D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJjR:8p7E+QrFUBgq2Sn9R
Malware Config
Extracted
remcos
1.7 Pro
Host
213.183.58.19:4000
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audio_folder
audio
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audio_path
%AppData%
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audio_record_time
5
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connect_delay
0
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connect_interval
5
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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
true
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install_flag
false
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install_path
%AppData%
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keylog_crypt
true
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keylog_file
read.dat
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keylog_flag
false
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keylog_folder
CastC
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keylog_path
%AppData%
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mouse_option
false
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mutex
remcos_sccafsoidz
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screens
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screenshot_path
%AppData%
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screenshot_time
1
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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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Executes dropped EXE 2 IoCs
pid Process 2780 sbietrcl.exe 792 sbietrcl.exe -
Loads dropped DLL 1 IoCs
pid Process 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe" 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2780 set thread context of 792 2780 sbietrcl.exe 31 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sbietrcl.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sbietrcl.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 2780 sbietrcl.exe 2780 sbietrcl.exe 2780 sbietrcl.exe 2780 sbietrcl.exe 2780 sbietrcl.exe 2780 sbietrcl.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe Token: SeDebugPrivilege 2780 sbietrcl.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 792 sbietrcl.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2180 wrote to memory of 2780 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 30 PID 2180 wrote to memory of 2780 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 30 PID 2180 wrote to memory of 2780 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 30 PID 2180 wrote to memory of 2780 2180 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe 30 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31 PID 2780 wrote to memory of 792 2780 sbietrcl.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe"C:\Users\Admin\AppData\Local\Temp\8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2180 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:792
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5871d493fa8eb1a3200a3cfd5a0f7e628
SHA1f65635076ebabcf23095073260876e58c7ccb921
SHA256153c254d78fa73edfb9c35f779f8f6ced45ea81094e7f6ac9ee73be99d5a091e
SHA51291aae4eeec772c732928a8e467f845e9f5ef60b7dba2b051efc22ce34a1e464866ff077d7a5f4aa113280b055174a8626fdfb68d1fca06b16db86e49642d2f3a
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
2.2MB
MD5a7eb5dd1123b8edda8d18b54d3b5c6d9
SHA123c2930aac6cf2c62242407cc3c636c7d054a009
SHA25693044b93baac1b769e7400d4bbc7441c8928975d8e379dc02c6975c298d064fe
SHA51229f087476e4872edb7574de59016210a27aa35607e154c2f9ee4080c4151f9a923117f9d41767ed4a9e2bf09ac7038a893dd6cad719c0809dc83145ac95cb9d1