Analysis
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max time kernel
141s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 03:56
Static task
static1
Behavioral task
behavioral1
Sample
d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe
Resource
win7-20240419-en
General
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Target
d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe
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Size
1.7MB
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MD5
625767ba7b66ed0d18c617d693d93157
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SHA1
8d5823ea96c7587234014880c7901e97cea17d1a
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SHA256
d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1
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SHA512
7010ac5ee9980c2b49a2d203f63131b5fc204c231452118e0e42fd9ccb114c596435b0fd07d52813f5ab787e134cf1ae2218be91cda4f3ad258c849b390919a7
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SSDEEP
24576:SD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjY0:Sp7E+QrFUBgq2V
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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detects Windows exceutables potentially bypassing UAC using eventvwr.exe 7 IoCs
Processes:
resource yara_rule behavioral2/memory/4348-32-0x0000000000400000-0x0000000000417000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer behavioral2/memory/4348-35-0x0000000000400000-0x0000000000417000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer behavioral2/memory/4348-36-0x0000000000400000-0x0000000000417000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer behavioral2/memory/4348-40-0x0000000000400000-0x0000000000417000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer behavioral2/memory/4348-39-0x0000000000400000-0x0000000000417000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer behavioral2/memory/4348-42-0x0000000000400000-0x0000000000417000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer behavioral2/memory/4348-46-0x0000000000400000-0x0000000000417000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe -
Executes dropped EXE 2 IoCs
Processes:
sbietrcl.exesbietrcl.exepid process 1416 sbietrcl.exe 4348 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
Processes:
d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe" d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
sbietrcl.exedescription pid process target process PID 1416 set thread context of 4348 1416 sbietrcl.exe sbietrcl.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exesbietrcl.exepid process 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe 1416 sbietrcl.exe 1416 sbietrcl.exe 1416 sbietrcl.exe 1416 sbietrcl.exe 1416 sbietrcl.exe 1416 sbietrcl.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exesbietrcl.exedescription pid process Token: SeDebugPrivilege 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe Token: SeDebugPrivilege 1416 sbietrcl.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
sbietrcl.exepid process 4348 sbietrcl.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exesbietrcl.exedescription pid process target process PID 1844 wrote to memory of 1416 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe sbietrcl.exe PID 1844 wrote to memory of 1416 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe sbietrcl.exe PID 1844 wrote to memory of 1416 1844 d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe PID 1416 wrote to memory of 4348 1416 sbietrcl.exe sbietrcl.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe"C:\Users\Admin\AppData\Local\Temp\d6d9bd64b35182791b01933dcfce5cac49204c9040fc19c64b7ecb7f88d215e1.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exeFilesize
1.7MB
MD5bafb7945e7bf1279cad986ea0c6c2cf9
SHA14bfea2c312d7231c46a33aeccb11e7c1b54e8af3
SHA25630acb4853e372637b753cef203727283eb385f91285b9f71f0a19fbe8f6e994e
SHA51253030217ba9e835870de4460a0bf498fefd63709796be36ed1320c29b396bc0065136f325ceb143c6878609efce1fae8e4facdf4c2d61a3dfdf87c9d492f10f5
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memory/1416-43-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/1416-31-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/1416-30-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/1416-29-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/1844-6-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/1844-28-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/1844-0-0x0000000074EA2000-0x0000000074EA3000-memory.dmpFilesize
4KB
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memory/1844-5-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/1844-2-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/1844-1-0x0000000074EA0000-0x0000000075451000-memory.dmpFilesize
5.7MB
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memory/4348-32-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/4348-35-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/4348-36-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/4348-40-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/4348-39-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/4348-42-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB
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memory/4348-46-0x0000000000400000-0x0000000000417000-memory.dmpFilesize
92KB