General
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Target
https://github.com/Rebomb/ReBomb2/raw/refs/heads/main/ReBomb2.exe
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Sample
250204-bhqgxa1nhn
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/Rebomb/ReBomb2/raw/refs/heads/main/ReBomb2.exe
Resource
win10ltsc2021-20250128-en
Malware Config
Extracted
asyncrat
5.0.5
Venom Clients
windows-services.linkpc.net:4449
Venom_RAT_HVNC_Mutex_Venom RAT_HVNC
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delay
1
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install
true
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install_file
System.exe
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install_folder
%AppData%
Extracted
arrowrat
VenomHVNC
windows-services.linkpc.net:4448
waDQmvKdS.exe
Extracted
njrat
0.7NC
NYAN CAT
windows-services.linkpc.net:5552
c2d3daef88a746
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reg_key
c2d3daef88a746
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splitter
@!#&^%$
Targets
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-
Target
https://github.com/Rebomb/ReBomb2/raw/refs/heads/main/ReBomb2.exe
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Arrowrat family
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Asyncrat family
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Modifies WinLogon for persistence
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Njrat family
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Async RAT payload
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Blocklisted process makes network request
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1