Analysis
-
max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2024 18:04
Static task
static1
Behavioral task
behavioral1
Sample
4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe
Resource
win7-20240708-en
General
-
Target
4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe
-
Size
856KB
-
MD5
b7b504ea022610fe69940fd54fd2bc27
-
SHA1
8cb39de97c36eb8328436ffe21be24742925e652
-
SHA256
4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87
-
SHA512
4f38f6ff589cb607c2cbd5be4be78c5dffe9f03723ec9c9eee9c606b9a8143ade83dbd3c2639f2401ee47232b899fb9dbe9dde7fea5196c31483d2b552f4b313
-
SSDEEP
24576:KdeRzboLmkwWQ6Q2l/4SPTIXkORnLeV35YryHC:CyO37l5TkzRLePYryHC
Malware Config
Extracted
remcos
RemoteHost
192.210.150.26:8787
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-R1T905
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Remcos family
-
Detected Nirsoft tools 4 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/4924-51-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/1172-53-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/4924-54-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/4924-63-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/4924-51-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/4924-54-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/4924-63-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe Powershell.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe Powershell.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 3844 set thread context of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 1732 set thread context of 4924 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 86 PID 1732 set thread context of 2120 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 87 PID 1732 set thread context of 1172 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 88 -
pid Process 3400 Powershell.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4676 2120 WerFault.exe 87 -
System Location Discovery: System Language Discovery 1 TTPs 5 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 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3400 Powershell.exe 3400 Powershell.exe 4924 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 4924 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 1172 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 1172 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 4924 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 4924 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3400 Powershell.exe Token: SeDebugPrivilege 1172 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 2120 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe -
Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 3844 wrote to memory of 3400 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 83 PID 3844 wrote to memory of 3400 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 83 PID 3844 wrote to memory of 3400 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 83 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 3844 wrote to memory of 1732 3844 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 85 PID 1732 wrote to memory of 4924 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 86 PID 1732 wrote to memory of 4924 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 86 PID 1732 wrote to memory of 4924 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 86 PID 1732 wrote to memory of 4924 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 86 PID 1732 wrote to memory of 2120 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 87 PID 1732 wrote to memory of 2120 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 87 PID 1732 wrote to memory of 2120 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 87 PID 1732 wrote to memory of 2120 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 87 PID 1732 wrote to memory of 1172 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 88 PID 1732 wrote to memory of 1172 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 88 PID 1732 wrote to memory of 1172 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 88 PID 1732 wrote to memory of 1172 1732 4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe"C:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3844 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'2⤵
- Drops startup file
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3400
-
-
C:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe"C:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exeC:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe /stext "C:\Users\Admin\AppData\Local\Temp\buwmdtlyyhcrme"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4924
-
-
C:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exeC:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe /stext "C:\Users\Admin\AppData\Local\Temp\lxjewmwsupuwxkofh"3⤵
- Suspicious use of UnmapMainImage
PID:2120 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 124⤵
- Program crash
PID:4676
-
-
-
C:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exeC:\Users\Admin\AppData\Local\Temp\4c5bea1fa5f8547de2a03c6117e10a023d76edc17df923c5f8031bfa74e12e87.exe /stext "C:\Users\Admin\AppData\Local\Temp\orppxeotiymjzqkjrcjw"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1172
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2120 -ip 21201⤵PID:2172
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
124B
MD5e1bf4fd2439c57652a9b333b449e2098
SHA199a227498c2ff59417d5917c70f8a2a03254e436
SHA25689943a24bcfdcbde6775a009dc0dbba209d157f21235b16bb59be7c124f857f4
SHA512e907cac2cf715fb568e4a0aa2a85c36cb51ff0527c4db71425ccf1918f932c0fdec66e773f6e4d9062bae0dec6f35ee86e5919afd97a9b659cd1285be967921d
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
4KB
MD560a0bdc1cf495566ff810105d728af4a
SHA1243403c535f37a1f3d5f307fc3fb8bdd5cbcf6e6
SHA256fd12da9f9b031f9fa742fa73bbb2c9265f84f49069b7c503e512427b93bce6d2
SHA5124445f214dbf5a01d703f22a848b56866f3f37b399de503f99d40448dc86459bf49d1fa487231f23c080a559017d72bcd9f6c13562e1f0bd53c1c9a89e73306a5