Analysis
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max time kernel
124s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
06-02-2023 19:23
Static task
static1
Behavioral task
behavioral1
Sample
31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe
Resource
win10v2004-20221111-en
General
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Target
31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe
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Size
558KB
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MD5
ef93e3e4af23d4d2dcc7b8003bda9ce1
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SHA1
358b8235755fb6267c0f05c5b7bcf761200828ef
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SHA256
31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d
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SHA512
14d5487b72b40db527845a60cd03914db82fa270f2f9f73d7576935141ef2a0e902dd5379fe1c6e6c16b9a0a85810b3f2f2a73c07fc757617e2829247950cd4b
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SSDEEP
12288:MMrdy900/nFT9Hg4t9UK6uYCvCTC53VpaS++bV/KJj3dWyy:hybZ9HgEDHvy2RMPy
Malware Config
Extracted
amadey
3.66
62.204.41.4/Gol478Ns/index.php
Signatures
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Processes:
nika.exeahSf.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection nika.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" nika.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" nika.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" nika.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" ahSf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" ahSf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" ahSf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" ahSf.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection ahSf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" ahSf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" nika.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" nika.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
mnolyk.exexriv.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation mnolyk.exe Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation xriv.exe -
Executes dropped EXE 7 IoCs
Processes:
bhSg.exeahSf.exenika.exexriv.exemnolyk.exemnolyk.exemnolyk.exepid process 1724 bhSg.exe 4160 ahSf.exe 1624 nika.exe 2256 xriv.exe 3472 mnolyk.exe 3440 mnolyk.exe 1696 mnolyk.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3672 rundll32.exe -
Processes:
ahSf.exenika.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features ahSf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" ahSf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" nika.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exebhSg.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" 31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce bhSg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\"" bhSg.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce 31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3020 4160 WerFault.exe ahSf.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
ahSf.exenika.exepid process 4160 ahSf.exe 4160 ahSf.exe 1624 nika.exe 1624 nika.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
ahSf.exenika.exedescription pid process Token: SeDebugPrivilege 4160 ahSf.exe Token: SeDebugPrivilege 1624 nika.exe -
Suspicious use of WriteProcessMemory 41 IoCs
Processes:
31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exebhSg.exexriv.exemnolyk.execmd.exedescription pid process target process PID 2072 wrote to memory of 1724 2072 31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe bhSg.exe PID 2072 wrote to memory of 1724 2072 31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe bhSg.exe PID 2072 wrote to memory of 1724 2072 31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe bhSg.exe PID 1724 wrote to memory of 4160 1724 bhSg.exe ahSf.exe PID 1724 wrote to memory of 4160 1724 bhSg.exe ahSf.exe PID 1724 wrote to memory of 4160 1724 bhSg.exe ahSf.exe PID 1724 wrote to memory of 1624 1724 bhSg.exe nika.exe PID 1724 wrote to memory of 1624 1724 bhSg.exe nika.exe PID 2072 wrote to memory of 2256 2072 31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe xriv.exe PID 2072 wrote to memory of 2256 2072 31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe xriv.exe PID 2072 wrote to memory of 2256 2072 31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe xriv.exe PID 2256 wrote to memory of 3472 2256 xriv.exe mnolyk.exe PID 2256 wrote to memory of 3472 2256 xriv.exe mnolyk.exe PID 2256 wrote to memory of 3472 2256 xriv.exe mnolyk.exe PID 3472 wrote to memory of 228 3472 mnolyk.exe schtasks.exe PID 3472 wrote to memory of 228 3472 mnolyk.exe schtasks.exe PID 3472 wrote to memory of 228 3472 mnolyk.exe schtasks.exe PID 3472 wrote to memory of 4640 3472 mnolyk.exe cmd.exe PID 3472 wrote to memory of 4640 3472 mnolyk.exe cmd.exe PID 3472 wrote to memory of 4640 3472 mnolyk.exe cmd.exe PID 4640 wrote to memory of 4240 4640 cmd.exe cmd.exe PID 4640 wrote to memory of 4240 4640 cmd.exe cmd.exe PID 4640 wrote to memory of 4240 4640 cmd.exe cmd.exe PID 4640 wrote to memory of 4480 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 4480 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 4480 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 392 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 392 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 392 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 4688 4640 cmd.exe cmd.exe PID 4640 wrote to memory of 4688 4640 cmd.exe cmd.exe PID 4640 wrote to memory of 4688 4640 cmd.exe cmd.exe PID 4640 wrote to memory of 4256 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 4256 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 4256 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 2632 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 2632 4640 cmd.exe cacls.exe PID 4640 wrote to memory of 2632 4640 cmd.exe cacls.exe PID 3472 wrote to memory of 3672 3472 mnolyk.exe rundll32.exe PID 3472 wrote to memory of 3672 3472 mnolyk.exe rundll32.exe PID 3472 wrote to memory of 3672 3472 mnolyk.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe"C:\Users\Admin\AppData\Local\Temp\31a7e421a20d03185f12ff637ca034840900d95a15aa3fbfaac4d458dcb84b8d.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bhSg.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bhSg.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ahSf.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\ahSf.exe3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4160 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4160 -s 10164⤵
- Program crash
PID:3020
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nika.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\nika.exe3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1624
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xriv.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\xriv.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Users\Admin\AppData\Local\Temp\4b9a106e76\mnolyk.exe"C:\Users\Admin\AppData\Local\Temp\4b9a106e76\mnolyk.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3472 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN mnolyk.exe /TR "C:\Users\Admin\AppData\Local\Temp\4b9a106e76\mnolyk.exe" /F4⤵
- Creates scheduled task(s)
PID:228
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k echo Y|CACLS "mnolyk.exe" /P "Admin:N"&&CACLS "mnolyk.exe" /P "Admin:R" /E&&echo Y|CACLS "..\4b9a106e76" /P "Admin:N"&&CACLS "..\4b9a106e76" /P "Admin:R" /E&&Exit4⤵
- Suspicious use of WriteProcessMemory
PID:4640 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"5⤵PID:4240
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C:\Windows\SysWOW64\cacls.exeCACLS "mnolyk.exe" /P "Admin:N"5⤵PID:4480
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C:\Windows\SysWOW64\cacls.exeCACLS "mnolyk.exe" /P "Admin:R" /E5⤵PID:392
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"5⤵PID:4688
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C:\Windows\SysWOW64\cacls.exeCACLS "..\4b9a106e76" /P "Admin:N"5⤵PID:4256
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C:\Windows\SysWOW64\cacls.exeCACLS "..\4b9a106e76" /P "Admin:R" /E5⤵PID:2632
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\c1ec479e5342a2\clip64.dll, Main4⤵
- Loads dropped DLL
PID:3672
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4160 -ip 41601⤵PID:2576
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C:\Users\Admin\AppData\Local\Temp\4b9a106e76\mnolyk.exeC:\Users\Admin\AppData\Local\Temp\4b9a106e76\mnolyk.exe1⤵
- Executes dropped EXE
PID:3440
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C:\Users\Admin\AppData\Local\Temp\4b9a106e76\mnolyk.exeC:\Users\Admin\AppData\Local\Temp\4b9a106e76\mnolyk.exe1⤵
- Executes dropped EXE
PID:1696
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
236KB
MD58bb923c4d81284daef7896e5682df6c6
SHA167e34a96b77e44b666c5479f540995bdeacf5de2
SHA2569b0410052289a8416a458401fbb9a74d6361f4769465431b209f32151d7c6f21
SHA5122daed03277a343db5fcb22e26baea5cda41de39dc825fe0aad51f6ec181b8f38f09427f27fb58ffd179f37032600d107ef772cc6275f7d0d62899c6cd3f8aff7
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Filesize
236KB
MD58bb923c4d81284daef7896e5682df6c6
SHA167e34a96b77e44b666c5479f540995bdeacf5de2
SHA2569b0410052289a8416a458401fbb9a74d6361f4769465431b209f32151d7c6f21
SHA5122daed03277a343db5fcb22e26baea5cda41de39dc825fe0aad51f6ec181b8f38f09427f27fb58ffd179f37032600d107ef772cc6275f7d0d62899c6cd3f8aff7
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Filesize
236KB
MD58bb923c4d81284daef7896e5682df6c6
SHA167e34a96b77e44b666c5479f540995bdeacf5de2
SHA2569b0410052289a8416a458401fbb9a74d6361f4769465431b209f32151d7c6f21
SHA5122daed03277a343db5fcb22e26baea5cda41de39dc825fe0aad51f6ec181b8f38f09427f27fb58ffd179f37032600d107ef772cc6275f7d0d62899c6cd3f8aff7
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Filesize
236KB
MD58bb923c4d81284daef7896e5682df6c6
SHA167e34a96b77e44b666c5479f540995bdeacf5de2
SHA2569b0410052289a8416a458401fbb9a74d6361f4769465431b209f32151d7c6f21
SHA5122daed03277a343db5fcb22e26baea5cda41de39dc825fe0aad51f6ec181b8f38f09427f27fb58ffd179f37032600d107ef772cc6275f7d0d62899c6cd3f8aff7
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Filesize
371KB
MD5068dad952ef2bb0c83b01f5355dd1c12
SHA1a7c9b9cc21114d8efda9fd5c883b0f25b825145f
SHA25630709c5c6d7528efc81b7ad7fe2b5c413979ef170bd90700c36faee791a05700
SHA5120add0d50e34ec756eeaaee4ac260ca5a1a9b9a977772961837f6e6da41c7bdbf5ac9a722c76c8f6bdee1e8aecd7f3a5da6c9ff7aa90d16998b0538d18d7a6da3
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Filesize
371KB
MD5068dad952ef2bb0c83b01f5355dd1c12
SHA1a7c9b9cc21114d8efda9fd5c883b0f25b825145f
SHA25630709c5c6d7528efc81b7ad7fe2b5c413979ef170bd90700c36faee791a05700
SHA5120add0d50e34ec756eeaaee4ac260ca5a1a9b9a977772961837f6e6da41c7bdbf5ac9a722c76c8f6bdee1e8aecd7f3a5da6c9ff7aa90d16998b0538d18d7a6da3
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Filesize
236KB
MD58bb923c4d81284daef7896e5682df6c6
SHA167e34a96b77e44b666c5479f540995bdeacf5de2
SHA2569b0410052289a8416a458401fbb9a74d6361f4769465431b209f32151d7c6f21
SHA5122daed03277a343db5fcb22e26baea5cda41de39dc825fe0aad51f6ec181b8f38f09427f27fb58ffd179f37032600d107ef772cc6275f7d0d62899c6cd3f8aff7
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Filesize
236KB
MD58bb923c4d81284daef7896e5682df6c6
SHA167e34a96b77e44b666c5479f540995bdeacf5de2
SHA2569b0410052289a8416a458401fbb9a74d6361f4769465431b209f32151d7c6f21
SHA5122daed03277a343db5fcb22e26baea5cda41de39dc825fe0aad51f6ec181b8f38f09427f27fb58ffd179f37032600d107ef772cc6275f7d0d62899c6cd3f8aff7
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Filesize
341KB
MD53e992824465f02894e443cc255fff678
SHA10c95d1a78a548c60da4f2c15465efd2e122bb8da
SHA25644946a180522e0a95656ed6be0cdb70acf648b7c3eae27850762ac344b05f8d0
SHA512becd6d844a43ad48d6c0b9af2cbf15b7f6085c5bab5c4eae4bd909b0064c7fca22a6601b94416f86a9e51a4a6f88cdbe73723a2862ff25c222b2f75809d3b9a3
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Filesize
341KB
MD53e992824465f02894e443cc255fff678
SHA10c95d1a78a548c60da4f2c15465efd2e122bb8da
SHA25644946a180522e0a95656ed6be0cdb70acf648b7c3eae27850762ac344b05f8d0
SHA512becd6d844a43ad48d6c0b9af2cbf15b7f6085c5bab5c4eae4bd909b0064c7fca22a6601b94416f86a9e51a4a6f88cdbe73723a2862ff25c222b2f75809d3b9a3
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91
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Filesize
89KB
MD5c79b74d8fec5e7e2ba2f1789fd582a15
SHA178a1e5d99dbaccc5e07b125e1dfb280112cb3128
SHA256b5bd049d32f0faeea6ce65a0f0d326de5bc4427a7c1ad24bfb0ea050c1dec7d3
SHA5120debfc54904fd538cfb1fc648d18f90a991337200b3decf74b28ac2f341843fb3bab4f45bc92cfec333b18dfff9cc136854462e79054a39926a7bd8ee2e057ba
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Filesize
89KB
MD5c79b74d8fec5e7e2ba2f1789fd582a15
SHA178a1e5d99dbaccc5e07b125e1dfb280112cb3128
SHA256b5bd049d32f0faeea6ce65a0f0d326de5bc4427a7c1ad24bfb0ea050c1dec7d3
SHA5120debfc54904fd538cfb1fc648d18f90a991337200b3decf74b28ac2f341843fb3bab4f45bc92cfec333b18dfff9cc136854462e79054a39926a7bd8ee2e057ba