Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
23/07/2024, 15:39
Static task
static1
Behavioral task
behavioral1
Sample
317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe
Resource
win10v2004-20240709-en
General
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Target
317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe
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Size
2.0MB
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MD5
8f424619f95580c7ce64bf3663046f60
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SHA1
83b585a40f4a8a9c421647cf88716b6200750a3b
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SHA256
317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985
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SHA512
e5c92c2bf2d874c10686e5d6a87fd30bfef9b8b87cc3571774fbc72ae8e7111626f675ac356df19377d50a670c8596882da2a6cc4ded40525dbc00907cab1f13
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SSDEEP
24576:WD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4+cZkL:Wp7E+QrFUBgq29S
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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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe -
Executes dropped EXE 2 IoCs
pid Process 2292 sbietrcl.exe 2836 sbietrcl.exe -
Reads user/profile data of web browsers 2 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-1-5-21-47134698-4092160662-1261813102-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe" 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2292 set thread context of 2836 2292 sbietrcl.exe 96 -
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 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sbietrcl.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 2292 sbietrcl.exe 2292 sbietrcl.exe 2292 sbietrcl.exe 2292 sbietrcl.exe 2292 sbietrcl.exe 2292 sbietrcl.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe Token: SeDebugPrivilege 2292 sbietrcl.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2836 sbietrcl.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1264 wrote to memory of 2292 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 93 PID 1264 wrote to memory of 2292 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 93 PID 1264 wrote to memory of 2292 1264 317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe 93 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96 PID 2292 wrote to memory of 2836 2292 sbietrcl.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe"C:\Users\Admin\AppData\Local\Temp\317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1264 -
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:2292 -
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:2836
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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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Filesize
2.1MB
MD5afdcd5006ee2d91395c3a62eea54fc5a
SHA1698b9d69cbb62b0396e206f82d380ed4efc471fe
SHA2562ed4b61791e8d925acdb0ea5fd5793e224186a3086a22c4721d5993018e5233f
SHA5120f04de52c1870ed883fa891a31ed420d98bcec1fe86421cd11931a95677b55ed8520bdd884d5d45964b35c2f728140ae9bb31302e438c43fe99fa2850f9e93e8