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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03/02/2023, 19:29
Static task
static1
Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Loader.exe
Resource
win10v2004-20220901-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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Google\\Chrome.exe\"," Loader.exe -
XMRig Miner payload 6 IoCs
resource yara_rule behavioral2/memory/3700-146-0x0000000140344454-mapping.dmp xmrig behavioral2/memory/3700-145-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig behavioral2/memory/3700-147-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig behavioral2/memory/3700-148-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig behavioral2/memory/3700-150-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig behavioral2/memory/3700-152-0x0000000140000000-0x00000001407CA000-memory.dmp xmrig -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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
description pid Process procid_target PID 2200 set thread context of 3956 2200 Loader.exe 89 PID 3956 set thread context of 3700 3956 MSBuild.exe 92 -
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 64 IoCs
pid Process 4996 powershell.exe 4996 powershell.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe 3956 MSBuild.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 660 Process not Found -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 4996 powershell.exe Token: SeDebugPrivilege 2200 Loader.exe Token: SeDebugPrivilege 3956 MSBuild.exe Token: SeLockMemoryPrivilege 3700 AddInProcess.exe Token: SeLockMemoryPrivilege 3700 AddInProcess.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3700 AddInProcess.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 2200 wrote to memory of 4996 2200 Loader.exe 81 PID 2200 wrote to memory of 4996 2200 Loader.exe 81 PID 2200 wrote to memory of 3956 2200 Loader.exe 89 PID 2200 wrote to memory of 3956 2200 Loader.exe 89 PID 2200 wrote to memory of 3956 2200 Loader.exe 89 PID 2200 wrote to memory of 3956 2200 Loader.exe 89 PID 2200 wrote to memory of 3956 2200 Loader.exe 89 PID 2200 wrote to memory of 3956 2200 Loader.exe 89 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92 PID 3956 wrote to memory of 3700 3956 MSBuild.exe 92
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
PID:2200 -
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
PID:4996
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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
PID:3956 -
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
- Suspicious use of FindShellTrayWindow
PID:3700
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