Analysis
- max time kernel
149s - max time network
132s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
23/09/2026, 10:51
General
- Target Pulsar-1111exe.exe
- Size 952KB
- Sample260923-mxt97asbnc
- SHA256 2764f52ead9f8a068a4539ed8172d56110276c14f4c836057628d4f518caa203
Malware Config
Extracted
-
quasar
-
encryption_key
33A7029011B6BD4B067B8907EB238F25EFF233BF
-
key_salt
5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382
-
reconnect_delay
3000
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- PulsaRAT library module 3 IoCs
Core component of the PulsaRAT remote access trojan, implementing its command protocol for hidden remote desktop, UAC bypass, persistence, and credential theft.
- Quasar payload 2 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
- Looks for VMWare Tools registry key 2 TTPs 2 IoCs
- Executes dropped EXE 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 13 IoCs
- Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 2 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
- Enumerates system info in registry 2 TTPs 8 IoCs
- Suspicious behavior: EnumeratesProcesses 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Pulsar-1111exe.exe"C:\Users\Admin\AppData\Local\Temp\Pulsar-1111exe.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks for VirtualBox DLLs, possible anti-VM trick
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\ShellHost\ShellHost.exe"C:\Users\Admin\AppData\Roaming\ShellHost\ShellHost.exe"2⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks for VirtualBox DLLs, possible anti-VM trick
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
ShellHost.exe
memory/108-32-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-31-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-30-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-29-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-28-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-26-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-25-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-24-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-23-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-22-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/108-21-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-8-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-9-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-14-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-15-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-17-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-18-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-16-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-12-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-19-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-11-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-10-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-13-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-0-0x00007FFF8C3FF000-0x00007FFF8C400000-memory.dmp
memory/1248-7-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-6-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-27-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-5-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-4-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-3-0x00000260EBE80000-0x00000260EBEB4000-memory.dmp
memory/1248-2-0x00007FFF8C270000-0x00007FFF8CC14000-memory.dmp
memory/1248-1-0x00000260EB910000-0x00000260EBA04000-memory.dmp