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Analysis
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max time kernel
139s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
05/10/2024, 02:57
Static task
static1
Behavioral task
behavioral1
Sample
c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe
Resource
win7-20240903-en
General
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Target
c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe
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Size
2.2MB
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MD5
4cc37ec50a6261f3a3165bf88fd8c4c4
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SHA1
471b3058cc49aad6189323676472deae6dee1170
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SHA256
c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4
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SHA512
99c52e6263afe7960bc59ed56a60ffa248524798338ff61010619129ad17237a9d8402f1b93fce824c9c5f23b0b39ba19db5926dd6bc31634f0c761256fd2e29
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SSDEEP
24576:YD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJjRHM:Yp7E+QrFUBgq2SnJM
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 2132 sbietrcl.exe 2848 sbietrcl.exe -
Loads dropped DLL 1 IoCs
pid Process 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe" c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2132 set thread context of 2848 2132 sbietrcl.exe 32 -
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 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sbietrcl.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 2132 sbietrcl.exe 2132 sbietrcl.exe 2132 sbietrcl.exe 2132 sbietrcl.exe 2132 sbietrcl.exe 2132 sbietrcl.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe Token: SeDebugPrivilege 2132 sbietrcl.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2848 sbietrcl.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2172 wrote to memory of 2132 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 31 PID 2172 wrote to memory of 2132 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 31 PID 2172 wrote to memory of 2132 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 31 PID 2172 wrote to memory of 2132 2172 c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe 31 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32 PID 2132 wrote to memory of 2848 2132 sbietrcl.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.exe"C:\Users\Admin\AppData\Local\Temp\c59d16493e4339aec1c817910af350618239980d4b663aa9ff3dfef9f99f6ae4.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:2172 -
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:2132 -
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:2848
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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
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
2.2MB
MD5bc47400c3143e985a8116e1e6ddec0f6
SHA197eeb9328bdcb9d3e550410718a10bec64f61dde
SHA256fbfd6435abad80d06638708316e19dabcc39ba932e161eaf863e158817a02518
SHA5123c17b3920074d4735a678ffe98f93ec89f84c65aa5666fa2d2e14aa985b2f4c35ee581a0c4498f836b3f8d1c4a9aa8aa1ea3f19b8038e5440ae922497e4a8b6f