Analysis
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max time kernel
93s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
06-12-2024 11:30
General
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Target
Kindswater AG - TG4554476- MEXICO-2024-300994.xlsx.exe
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Size
894KB
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MD5
39c057d5422f27e72679ab1fa0c6aa1b
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SHA1
8f29d37e6622a11e6d0d46312a6b29de83453d7d
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SHA256
9dee5f3211377a710f006088e99409270a3d2ca982ec26eac5473ea3bfa2ce8b
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SHA512
516add8c7c1827692d57341904ecb3672f9c24bfeb65c1733847f7cd7253f415f0c8001c088edb38984982f98188d9245a425954599e074d6671d7f0c9c7bafe
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SSDEEP
12288:rg8sz5/vszGcF03buni+oqt0y0eVohUH4/OU18WN2rQzVKMd:s8sdszGcF1iBqt50eVohUH1U1sM
Malware Config
Extracted
quasar
1.4.1
chi
amaskdh.ydns.eu:6298
e3a0d936-49ca-41bb-a676-d392f4ae50e8
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encryption_key
799E5C34BA6EC18D72E269D0C5CF1A5AC1AD9277
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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
svchost
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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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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
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Drops startup file 1 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\Kindswater AG - TG4554476- MEXICO-2024-300994.xlsx.exe"C:\Users\Admin\AppData\Local\Temp\Kindswater AG - TG4554476- MEXICO-2024-300994.xlsx.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "svchost" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4KB
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Filesize
920KB
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Filesize
7.7MB
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Filesize
32KB
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Filesize
2.1MB
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Filesize
5.6MB
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Filesize
584KB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
2.0MB
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Filesize
7.7MB
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Filesize
1.5MB
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Filesize
304KB
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Filesize
4KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
336KB
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Filesize
7.7MB
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Filesize
7.7MB
-
Filesize
7.7MB
-
Filesize
7.7MB
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Filesize
7.7MB
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Filesize
3.1MB
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Filesize
7.7MB
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Filesize
40KB
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Filesize
6.1MB
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Filesize
320KB
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Filesize
712KB
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Filesize
72KB
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Filesize
240KB
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Filesize
408KB
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Filesize
7.7MB