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Analysis
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max time kernel
151s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02/12/2022, 21:05
Static task
static1
Behavioral task
behavioral1
Sample
02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe
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Size
240KB
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MD5
f75dcfd3c312d8cbed4f3a2d765b4882
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SHA1
5a605f179baa2fd58b0f37065839b5c16f82455d
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SHA256
02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b
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SHA512
55902edd1a72f830e855c357f38f8768c77ba4e31d2e4552ac2e3139d531c33ae69da08f67da0525b35f146b5a9b3c8abecc93c4200111f0e572c96a481cbab4
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SSDEEP
6144:koJ5UtO7RQjX7XN1kd9JbSDviiopNDa/N08i1/W:I4xNTW
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" nuuxem.exe -
Executes dropped EXE 1 IoCs
pid Process 4976 nuuxem.exe -
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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe -
Adds Run key to start application 2 TTPs 51 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /P" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /w" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /D" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /m" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /e" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /a" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /C" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /W" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /A" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /L" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /N" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /z" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /U" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /Z" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /s" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /l" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /R" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /J" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /j" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /B" 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /E" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /q" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /H" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /x" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /G" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /O" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /n" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /h" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /v" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /g" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /t" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /Q" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /b" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /K" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /I" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /X" nuuxem.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /B" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /r" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /k" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /S" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /y" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /T" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /M" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /o" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /F" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /p" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /i" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /c" nuuxem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nuuxem = "C:\\Users\\Admin\\nuuxem.exe /V" nuuxem.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 64 IoCs
pid Process 2008 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe 2008 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe 4976 nuuxem.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2008 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe 4976 nuuxem.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2008 wrote to memory of 4976 2008 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe 79 PID 2008 wrote to memory of 4976 2008 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe 79 PID 2008 wrote to memory of 4976 2008 02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe"C:\Users\Admin\AppData\Local\Temp\02c57b6c3ef2c319f6f82e855400a5d5891e5bc187161f11aa985003727b874b.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Users\Admin\nuuxem.exe"C:\Users\Admin\nuuxem.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4976
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
240KB
MD5d666858e912f76d7e3ef757291084907
SHA1f63cac000b93a180c09397f7cbfe2576fab958f0
SHA256b429634be1014c69f62dd215df432e145290f2530277101ac5eb854c480f6974
SHA512d7212a34d60a6842ed4a5d33b5130e4ec0352e397ad766d5f8d462ae1b536a2fafaaefaf7ef0c731c9c7b4be8aa6f6afb3ed7539a934ed053bcd84f71c8b2d61
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Filesize
240KB
MD5d666858e912f76d7e3ef757291084907
SHA1f63cac000b93a180c09397f7cbfe2576fab958f0
SHA256b429634be1014c69f62dd215df432e145290f2530277101ac5eb854c480f6974
SHA512d7212a34d60a6842ed4a5d33b5130e4ec0352e397ad766d5f8d462ae1b536a2fafaaefaf7ef0c731c9c7b4be8aa6f6afb3ed7539a934ed053bcd84f71c8b2d61