Analysis
- max time kernel
4294211s - max time network
149s - platform
windows7_x64 - resource
win7-20220310-en - submitted
01/04/2022, 13:19
General
- Target triage_dropped_file.exe
- Size 242KB
- Sample220401-qkg1wabha9
- SHA256 3a00a090c263abb496651ab7cc34306e224c62b14c3a8b85fe56d30c51af1bb2
Malware Config
Extracted
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xloader
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2.5
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xc52
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thelukeliu.com
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solarpointinc.com
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41mpt.xyz
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giangsontaikhoi.com
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bqyiiq.space
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aguw.top
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xetnghiemdany.com
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xn--jsrs15bbg5a.com
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xcflora.com
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socfasderldecv.com
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vitginmobile.com
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myvirtualtrophy.com
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zubr-service.online
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saremira.com
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baoanforum.com
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pizzafolk.net
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clararsjajno.quest
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beennow.com
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sumou-sa.com
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sondelicias.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- Xloader Payload 4 IoCs
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 31 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 19 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cejpyx.exeC:\Users\Admin\AppData\Local\Temp\cejpyx.exe C:\Users\Admin\AppData\Local\Temp\dwhkvrn3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cejpyx.exeC:\Users\Admin\AppData\Local\Temp\cejpyx.exe C:\Users\Admin\AppData\Local\Temp\dwhkvrn4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\help.exe"C:\Windows\SysWOW64\help.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\cejpyx.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
cejpyx.exe
cejpyx.exe
cejpyx.exe
dwhkvrn
sh5fij5vucej
cejpyx.exe
cejpyx.exe
memory/796-54-0x00000000761D1000-0x00000000761D3000-memory.dmp
memory/1216-63-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1216-68-0x0000000000A20000-0x0000000000D23000-memory.dmp
memory/1216-69-0x0000000000180000-0x0000000000191000-memory.dmp
memory/1216-67-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1388-70-0x0000000006E80000-0x0000000007028000-memory.dmp
memory/1388-77-0x00000000048B0000-0x000000000495C000-memory.dmp
memory/1776-72-0x0000000000180000-0x0000000000186000-memory.dmp
memory/1776-73-0x0000000000080000-0x00000000000A9000-memory.dmp
memory/1776-74-0x0000000000750000-0x0000000000A53000-memory.dmp
memory/1776-76-0x00000000005C0000-0x0000000000650000-memory.dmp