Analysis
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max time kernel
118s -
max time network
299s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04-11-2024 10:50
Static task
static1
Behavioral task
behavioral1
Sample
RFQ_PO_091232.rtf
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
RFQ_PO_091232.rtf
Resource
win10v2004-20241007-en
General
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Target
RFQ_PO_091232.rtf
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Size
825KB
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MD5
666036634de5de5ff28819cec19299f3
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SHA1
4cb3fb08d6a173e1526f48d1d4237c29f9a49f5f
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SHA256
ff221c26a6ad233a179ede24b8156649e2e4338af867571943a2f114650bffa2
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SHA512
6f8ede92bcc457c2bc07f3ad15a33799d288b4eb6d56f1b8b44517c36373d35a4fe1e4804e90f5069ccfa400731cd172997ac23a154cbf3640fe5da355fb8eac
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SSDEEP
6144:HcwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAjjFkYwsQ+jGnThT:2
Malware Config
Extracted
nanocore
1.2.2.0
66.63.187.113:1664
a376f716-2f77-4943-a431-3a3bcb53b7c0
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activate_away_mode
true
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backup_connection_host
66.63.187.113
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-08-05T03:49:33.827385136Z
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bypass_user_account_control
false
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bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
1664
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default_group
CAT
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
a376f716-2f77-4943-a431-3a3bcb53b7c0
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
66.63.187.113
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Signatures
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Nanocore family
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Blocklisted process makes network request 1 IoCs
Processes:
EQNEDT32.EXEflow pid Process 3 2984 EQNEDT32.EXE -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Downloads MZ/PE file
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Executes dropped EXE 5 IoCs
Processes:
jequduhalcat.exejequduhalcat.exejequduhalcat.exejequduhalcat.exejequduhalcat.exepid Process 2740 jequduhalcat.exe 1108 jequduhalcat.exe 840 jequduhalcat.exe 2016 jequduhalcat.exe 2256 jequduhalcat.exe -
Loads dropped DLL 1 IoCs
Processes:
EQNEDT32.EXEpid Process 2984 EQNEDT32.EXE -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
jequduhalcat.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Host = "C:\\Program Files (x86)\\SCSI Host\\scsihost.exe" jequduhalcat.exe -
Processes:
jequduhalcat.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA jequduhalcat.exe -
Drops file in System32 directory 1 IoCs
Processes:
powershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
jequduhalcat.exedescription pid Process procid_target PID 2740 set thread context of 2256 2740 jequduhalcat.exe 40 -
Drops file in Program Files directory 2 IoCs
Processes:
jequduhalcat.exedescription ioc Process File created C:\Program Files (x86)\SCSI Host\scsihost.exe jequduhalcat.exe File opened for modification C:\Program Files (x86)\SCSI Host\scsihost.exe jequduhalcat.exe -
Drops file in Windows directory 1 IoCs
Processes:
WINWORD.EXEdescription ioc Process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
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 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
jequduhalcat.exepowershell.exeschtasks.exeschtasks.exeWINWORD.EXEEQNEDT32.EXEjequduhalcat.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jequduhalcat.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WINWORD.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language EQNEDT32.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jequduhalcat.exe -
Office loads VBA resources, possible macro or embedded object present
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Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
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Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 2040 schtasks.exe 1996 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid Process 1684 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 13 IoCs
Processes:
jequduhalcat.exepowershell.exejequduhalcat.exepid Process 2740 jequduhalcat.exe 2740 jequduhalcat.exe 2740 jequduhalcat.exe 2740 jequduhalcat.exe 2740 jequduhalcat.exe 2740 jequduhalcat.exe 940 powershell.exe 2256 jequduhalcat.exe 2256 jequduhalcat.exe 2256 jequduhalcat.exe 2256 jequduhalcat.exe 2256 jequduhalcat.exe 2256 jequduhalcat.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
jequduhalcat.exepid Process 2256 jequduhalcat.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
jequduhalcat.exepowershell.exejequduhalcat.exedescription pid Process Token: SeDebugPrivilege 2740 jequduhalcat.exe Token: SeDebugPrivilege 940 powershell.exe Token: SeDebugPrivilege 2256 jequduhalcat.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid Process 1684 WINWORD.EXE 1684 WINWORD.EXE -
Suspicious use of WriteProcessMemory 41 IoCs
Processes:
EQNEDT32.EXEWINWORD.EXEjequduhalcat.exejequduhalcat.exedescription pid Process procid_target PID 2984 wrote to memory of 2740 2984 EQNEDT32.EXE 30 PID 2984 wrote to memory of 2740 2984 EQNEDT32.EXE 30 PID 2984 wrote to memory of 2740 2984 EQNEDT32.EXE 30 PID 2984 wrote to memory of 2740 2984 EQNEDT32.EXE 30 PID 1684 wrote to memory of 1776 1684 WINWORD.EXE 34 PID 1684 wrote to memory of 1776 1684 WINWORD.EXE 34 PID 1684 wrote to memory of 1776 1684 WINWORD.EXE 34 PID 1684 wrote to memory of 1776 1684 WINWORD.EXE 34 PID 2740 wrote to memory of 940 2740 jequduhalcat.exe 35 PID 2740 wrote to memory of 940 2740 jequduhalcat.exe 35 PID 2740 wrote to memory of 940 2740 jequduhalcat.exe 35 PID 2740 wrote to memory of 940 2740 jequduhalcat.exe 35 PID 2740 wrote to memory of 1108 2740 jequduhalcat.exe 36 PID 2740 wrote to memory of 1108 2740 jequduhalcat.exe 36 PID 2740 wrote to memory of 1108 2740 jequduhalcat.exe 36 PID 2740 wrote to memory of 1108 2740 jequduhalcat.exe 36 PID 2740 wrote to memory of 840 2740 jequduhalcat.exe 38 PID 2740 wrote to memory of 840 2740 jequduhalcat.exe 38 PID 2740 wrote to memory of 840 2740 jequduhalcat.exe 38 PID 2740 wrote to memory of 840 2740 jequduhalcat.exe 38 PID 2740 wrote to memory of 2016 2740 jequduhalcat.exe 39 PID 2740 wrote to memory of 2016 2740 jequduhalcat.exe 39 PID 2740 wrote to memory of 2016 2740 jequduhalcat.exe 39 PID 2740 wrote to memory of 2016 2740 jequduhalcat.exe 39 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2740 wrote to memory of 2256 2740 jequduhalcat.exe 40 PID 2256 wrote to memory of 2040 2256 jequduhalcat.exe 41 PID 2256 wrote to memory of 2040 2256 jequduhalcat.exe 41 PID 2256 wrote to memory of 2040 2256 jequduhalcat.exe 41 PID 2256 wrote to memory of 2040 2256 jequduhalcat.exe 41 PID 2256 wrote to memory of 1996 2256 jequduhalcat.exe 43 PID 2256 wrote to memory of 1996 2256 jequduhalcat.exe 43 PID 2256 wrote to memory of 1996 2256 jequduhalcat.exe 43 PID 2256 wrote to memory of 1996 2256 jequduhalcat.exe 43
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\RFQ_PO_091232.rtf"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:1776
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2984 -
C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"C:\Users\Admin\AppData\Roaming\jequduhalcat.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:2740 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"3⤵
- Command and Scripting Interpreter: PowerShell
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:940
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C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"3⤵
- Executes dropped EXE
PID:1108
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C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"3⤵
- Executes dropped EXE
PID:840
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C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"3⤵
- Executes dropped EXE
PID:2016
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C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"C:\Users\Admin\AppData\Roaming\jequduhalcat.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SCSI Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAD6F.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2040
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SCSI Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpADDD.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1996
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Exploitation for Client Execution
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5bd591eebe11d193e29c078323f5b9b8b
SHA16a093fab046422f4b4501a6db734ec6f9dabf299
SHA2560ac67ad4c63b9736d0c07363874a11a1aa6038dbfc757b373e992c48b82ff7c7
SHA51249045eacf3f2f676bd76c9db9ace132a35c093dad1fb4bdb1d7f04a87220fe1197472244b8b1bce705d2acf5de4f35a9c80bbe8b000f7cb5c5c74de536e70b51
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Filesize
1KB
MD59a559f229be0944bc3dc813cde333f50
SHA10e97c97eea032b499ff060e799581e32beeceb09
SHA256a63d853679aa655cced3b62a10855c56f9efd9b50770738b408d728008f73330
SHA5124cbb2f77283500e86ecf79fd2cbd31d10c3af2fcf6c9a557ee0b1edead229dc07d63a5030b60df57458d52ef8c2a42ec199d2d4cdca387400d047df25b593c68
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Filesize
720KB
MD5782965f857a2c2dbc179b7e016386f61
SHA13d16a97e2733daa4c2313035e134e763497bb948
SHA2562634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a
SHA512a1c98f6c20b9b5692069ac79d43ed06481faf963da10ad24b83bf4d76c44db2fca87e5237205be1767b83781ea63e0d8993dfc86bb08743e6756482771e01272