Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
28-12-2024 20:45
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
c94e39405f4ff6b5e5bcd0f221f7602d
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SHA1
1ed42e129448fe9c0e078c292b9638747c82c5d7
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SHA256
20e4551dddd4f64d90e97da62dc0befde72128d2b3995e251fb12c734b5c686b
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SHA512
19f420aca31adf075dfb32897c6efdbd6aa5d1129ee110bd19411e662bb3c0eff40f44dc639a40d3a2a67eb4a3cfd7ee024589caf9604ad439b08d46745cec94
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SSDEEP
49152:WvVuf2NUaNmwzPWlvdaKM7ZxTwEjRJ6EbR3LoGdFBCTHHB72eh2NT:Wvgf2NUaNmwzPWlvdaB7ZxTwEjRJ6O
Malware Config
Extracted
quasar
1.4.1
Office04
138.0.54.91:4782
192.168.3.5:4782
208.67.222.222:4782
63563c99-67f3-4d20-8c7f-230c3d970b36
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encryption_key
E22572FBAE45F5F894074ED475A27E306499B335
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Microsoft Link
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subdirectory
SubDir
Signatures
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Quasar RAT
Quasar is an open source Remote Access Tool.
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Quasar family
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Quasar payload 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 8 IoCs
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Suspicious use of AdjustPrivilegeToken 6 IoCs
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Suspicious use of FindShellTrayWindow 35 IoCs
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Suspicious use of SendNotifyMessage 35 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
8KB
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Filesize
3.1MB
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Filesize
10.8MB
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Filesize
320KB
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Filesize
712KB
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Filesize
8KB
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Filesize
10.8MB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB