Analysis
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max time kernel
193s -
max time network
254s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
13-12-2024 15:07
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
cafaa2094366a156294df6341237e491
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SHA1
49868d99bb2252ce9911f8b6c94015cd87f24b01
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SHA256
9d7cd0429734cb72bc0205287461e459c51cee40f34e5e54513da2315bf8e84a
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SHA512
be176c9d7080b522c8a5dc9d219d47ee71ef507473348825073928142b9e9175287140fce137a5fc16d4d5ec0eb96bcc26bbeacf86dd328f9b5492f66b6af675
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SSDEEP
49152:zvbI22SsaNYfdPBldt698dBcjHKVE7uo+vJgBoGdBTHHB72eh2NT:zvk22SsaNYfdPBldt6+dBcjHqoj
Malware Config
Extracted
quasar
1.4.1
Office04
Waix-40247.portmap.host:40247
9d84e220-c4b7-4f5c-b179-163c03154a8f
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encryption_key
B963B2000CDCB4E83B2966F1E1C703720463EE18
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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
Quasar Client Startup
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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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
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Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Opens file in notepad (likely ransom note) 1 IoCs
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Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 41 IoCs
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Suspicious use of AdjustPrivilegeToken 11 IoCs
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Suspicious use of FindShellTrayWindow 64 IoCs
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Suspicious use of SendNotifyMessage 64 IoCs
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Suspicious use of WriteProcessMemory 6 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⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\R5lgPTvEjPBk.bat" "2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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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
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C:\Windows\System32\NOTEPAD.EXE"C:\Windows\System32\NOTEPAD.EXE" C:\Users\Admin\Desktop\TestPing.bat1⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Opens file in notepad (likely ransom note)
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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
64KB
MD5d2fb266b97caff2086bf0fa74eddb6b2
SHA12f0061ce9c51b5b4fbab76b37fc6a540be7f805d
SHA256b09f68b61d9ff5a7c7c8b10eee9447d4813ee0e866346e629e788cd4adecb66a
SHA512c3ba95a538c1d266beb83334af755c34ce642a4178ab0f2e5f7822fd6821d3b68862a8b58f167a9294e6d913b08c1054a69b5d7aec2efdb3cf9796ed84de21a8
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Filesize
4B
MD5f49655f856acb8884cc0ace29216f511
SHA1cb0f1f87ec0455ec349aaa950c600475ac7b7b6b
SHA2567852fce59c67ddf1d6b8b997eaa1adfac004a9f3a91c37295de9223674011fba
SHA512599e93d25b174524495ed29653052b3590133096404873318f05fd68f4c9a5c9a3b30574551141fbb73d7329d6be342699a17f3ae84554bab784776dfda2d5f8
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Filesize
944B
MD56bd369f7c74a28194c991ed1404da30f
SHA10f8e3f8ab822c9374409fe399b6bfe5d68cbd643
SHA256878947d0ec814fe7c343cdebc05eebf00eb14f3023bdb3809a559e17f399fe5d
SHA5128fc5f073dc9fa1e1ae47c60a5f06e0a48709fd6a4302dffaa721858409e7bde64bc6856d3fb28891090516d1a7afc542579de287778b5755eafe75cc67d45d93
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Filesize
213B
MD515651fd2c48831fa6fe43d58c28d453c
SHA160a75652f41149b0569078586e1d6baabd4ec428
SHA256881adbe1f1943acc3196aaa78a2467be33ea4b00b19873fe44aa36da5aeb92ec
SHA512376300d9b6304983a2dbaf1a8f6f46cabecfb7cbfe2960a32a9d25ddd993c447fdf7bc7a1659dc9a265ebff3e6e5e9451d3a33ef5cd9accc4c1ecfb3f7d1281a
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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
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
8KB
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Filesize
240KB
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Filesize
72KB
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Filesize
3.1MB
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Filesize
10.8MB
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Filesize
712KB
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Filesize
320KB
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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