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Analysis
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max time kernel
309s -
max time network
376s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
24/11/2022, 00:19
Static task
static1
Behavioral task
behavioral1
Sample
bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe
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Size
216KB
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MD5
2b109e310349ac6476fac279239c53e0
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SHA1
c44a85b0d9c78035c77c6e2bf90e17dd3eba8f6a
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SHA256
bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb
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SHA512
2f33954ae7e563f55730a05ba07e30e44d7dcec40b27a6352182376173854a27870dd8879ba35f20fb91381e90c44e2f42ae1a4d4d14b16650635014707e67e4
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SSDEEP
3072:mFvdlkZboHFGFooobAqzNOEbOKZbtpGPsLxf:mFvzNPseNmKJtpLf
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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe Set value (int) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" jiouw.exe -
Executes dropped EXE 1 IoCs
pid Process 4332 jiouw.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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe -
Adds Run key to start application 2 TTPs 25 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /C" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /e" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /S" jiouw.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\ bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /I" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /r" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /b" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /N" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /D" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /c" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /V" jiouw.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\ jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /Q" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /H" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /z" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /s" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /T" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /y" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /X" bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /A" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /q" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /G" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /P" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /L" jiouw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jiouw = "C:\\Users\\Admin\\jiouw.exe /U" jiouw.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 4428 bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe 4428 bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe 4332 jiouw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4428 bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe 4332 jiouw.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4428 wrote to memory of 4332 4428 bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe 85 PID 4428 wrote to memory of 4332 4428 bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe 85 PID 4428 wrote to memory of 4332 4428 bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.exe"C:\Users\Admin\AppData\Local\Temp\bff2bf493325119f9a575f1b1917ee01679c48b4991ca9356c33e1dccb0631bb.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:4428 -
C:\Users\Admin\jiouw.exe"C:\Users\Admin\jiouw.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:4332
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
216KB
MD53687e61deac5609bfad8f7ce4566312d
SHA1d5368d25d49b06e3d31d640f38c4d81d2895323d
SHA2561f846a698ed3edeb496bd27515e51d9600f81b42487a61514f2bd45cebd96100
SHA512f0ddbf183d80cbced73fbaa9a1e943e0374828e8e84850e293301406b02f5300b30ad3d541e0679ad7dfbabb3f8d3fb784eaf95494f8fa966fd758481508ffbc
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Filesize
216KB
MD53687e61deac5609bfad8f7ce4566312d
SHA1d5368d25d49b06e3d31d640f38c4d81d2895323d
SHA2561f846a698ed3edeb496bd27515e51d9600f81b42487a61514f2bd45cebd96100
SHA512f0ddbf183d80cbced73fbaa9a1e943e0374828e8e84850e293301406b02f5300b30ad3d541e0679ad7dfbabb3f8d3fb784eaf95494f8fa966fd758481508ffbc