Analysis
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max time kernel
176s -
max time network
188s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
03-02-2023 19:25
Static task
static1
Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
Loader.exe
Resource
win10v2004-20221111-en
General
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Target
Loader.exe
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Size
1.6MB
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MD5
a44e526804469076d712e8a05ddd7759
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SHA1
7010fda540e70139020a7a79730e74e99bd8e6c9
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SHA256
46d7128963bde013c8ec359b285e47eabbf9c88e332735e02ced518773e8e95f
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SHA512
04c40ef00c80d641c4f7bced8aefc180d695ea23ef79e272167f1a567484be2ab7031ca55a246cbeba1ed0c0ed93223fc2a33daed7f2048c62f169f0e6325b36
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SSDEEP
49152:fBvdZG5o8InNXL9Qn0HpZjI64n2hcyfT2:pFZG5oNnRfh9
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
Loader.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Google\\Chrome.exe\"," Loader.exe -
XMRig Miner payload 5 IoCs
Processes:
resource yara_rule behavioral2/memory/4860-145-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig behavioral2/memory/4860-146-0x0000000140344454-mapping.dmp xmrig behavioral2/memory/4860-147-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig behavioral2/memory/4860-148-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig behavioral2/memory/4860-150-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Loader.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation Loader.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Suspicious use of SetThreadContext 2 IoCs
Processes:
Loader.exeMSBuild.exedescription pid process target process PID 3468 set thread context of 1896 3468 Loader.exe MSBuild.exe PID 1896 set thread context of 4860 1896 MSBuild.exe AddInProcess.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 19 IoCs
Processes:
powershell.exeMSBuild.exepid process 1880 powershell.exe 1880 powershell.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe 1896 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
powershell.exeLoader.exeMSBuild.exeAddInProcess.exedescription pid process Token: SeDebugPrivilege 1880 powershell.exe Token: SeDebugPrivilege 3468 Loader.exe Token: SeDebugPrivilege 1896 MSBuild.exe Token: SeLockMemoryPrivilege 4860 AddInProcess.exe Token: SeLockMemoryPrivilege 4860 AddInProcess.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
Loader.exeMSBuild.exedescription pid process target process PID 3468 wrote to memory of 1880 3468 Loader.exe powershell.exe PID 3468 wrote to memory of 1880 3468 Loader.exe powershell.exe PID 3468 wrote to memory of 1896 3468 Loader.exe MSBuild.exe PID 3468 wrote to memory of 1896 3468 Loader.exe MSBuild.exe PID 3468 wrote to memory of 1896 3468 Loader.exe MSBuild.exe PID 3468 wrote to memory of 1896 3468 Loader.exe MSBuild.exe PID 3468 wrote to memory of 1896 3468 Loader.exe MSBuild.exe PID 3468 wrote to memory of 1896 3468 Loader.exe MSBuild.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe PID 1896 wrote to memory of 4860 1896 MSBuild.exe AddInProcess.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Loader.exe"C:\Users\Admin\AppData\Local\Temp\Loader.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwAyAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess.exe -o rx.unmineable.com:3333 -a rx -k -u RVN:RMHgF8iWWzutXCpbDgarftrSUoycmQgCqo.Worker_CPU -p x --cpu-max-threads-hint=503⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1880-136-0x0000000000000000-mapping.dmp
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memory/1880-139-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmpFilesize
10.8MB
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memory/1880-138-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmpFilesize
10.8MB
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memory/1880-137-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmpFilesize
10.8MB
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memory/1896-140-0x0000000000400000-0x000000000048C000-memory.dmpFilesize
560KB
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memory/1896-141-0x0000000000400000-mapping.dmp
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memory/1896-144-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmpFilesize
10.8MB
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memory/1896-143-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmpFilesize
10.8MB
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memory/3468-132-0x00000234419A0000-0x0000023441B42000-memory.dmpFilesize
1.6MB
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memory/3468-135-0x0000023442050000-0x0000023442072000-memory.dmpFilesize
136KB
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memory/3468-142-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmpFilesize
10.8MB
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memory/3468-133-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmpFilesize
10.8MB
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memory/3468-134-0x00007FFCFF510000-0x00007FFCFFFD1000-memory.dmpFilesize
10.8MB
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memory/4860-145-0x0000000140000000-0x00000001407CA000-memory.dmpFilesize
7.8MB
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memory/4860-146-0x0000000140344454-mapping.dmp
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memory/4860-147-0x0000000140000000-0x00000001407CA000-memory.dmpFilesize
7.8MB
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memory/4860-148-0x0000000140000000-0x00000001407CA000-memory.dmpFilesize
7.8MB
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memory/4860-149-0x000001FF88150000-0x000001FF88170000-memory.dmpFilesize
128KB
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memory/4860-150-0x0000000140000000-0x00000001407CA000-memory.dmpFilesize
7.8MB