Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
23/04/2022, 11:28
General
- Target SKM_1504322RS.exe
- Size 192KB
- Sample220423-nk13msgcdp
- SHA256 59552104d4bb2bcc6518dab735dac7dbb731a988dda8b82d39fa10911e7b8ee3
Malware Config
Extracted
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xloader
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2.5
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ahc8
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192451.com
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wwwripostes.net
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sirikhalsalaw.com
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bitterbaybay.com
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stella-scrubs.com
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almanecermezcal.com
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goodgood.online
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translate-now.online
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sincerefilm.com
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quadrantforensics.com
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johnfrenchart.com
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plick-click.com
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alnileen.com
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tghi.xyz
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172711.com
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maymakita.com
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punnyaseva.com
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ukash-online.com
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sho-yururi-blog.com
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hebergement-solidaire.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Xloader Payload 2 IoCs
- Executes dropped EXE 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.
- Enumerates system info in registry 2 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 62 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\SKM_1504322RS.exe"C:\Users\Admin\AppData\Local\Temp\SKM_1504322RS.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\wiecpplnw.exeC:\Users\Admin\AppData\Local\Temp\wiecpplnw.exe C:\Users\Admin\AppData\Local\Temp\gnpqzaioa3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\wiecpplnw.exeC:\Users\Admin\AppData\Local\Temp\wiecpplnw.exe C:\Users\Admin\AppData\Local\Temp\gnpqzaioa4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\chkdsk.exe"C:\Windows\SysWOW64\chkdsk.exe"2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- 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\wiecpplnw.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
8cqj5cdlj81hkk3c7l9r
gnpqzaioa
wiecpplnw.exe
wiecpplnw.exe
wiecpplnw.exe
memory/1732-147-0x0000000000CE0000-0x0000000000D70000-memory.dmp
memory/1732-146-0x0000000000FB0000-0x00000000012FA000-memory.dmp
memory/1732-145-0x00000000004F0000-0x0000000000519000-memory.dmp
memory/1732-144-0x00000000004D0000-0x00000000004DA000-memory.dmp
memory/1928-138-0x00000000009F0000-0x0000000000D3A000-memory.dmp
memory/1928-140-0x00000000009D0000-0x00000000009E1000-memory.dmp
memory/1928-136-0x0000000000400000-0x0000000000429000-memory.dmp
memory/3140-141-0x0000000007C60000-0x0000000007DAF000-memory.dmp
memory/3140-148-0x0000000007DB0000-0x0000000007EDD000-memory.dmp