Analysis
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max time kernel
152s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 23:29
Static task
static1
Behavioral task
behavioral1
Sample
e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe
Resource
win10v2004-20220901-en
General
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Target
e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe
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Size
136KB
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MD5
decf9d9242ccfbf4241ad90325fe1c2a
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SHA1
c7aafedb021b240a8f5ee2b40756b9156ae889db
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SHA256
e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407
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SHA512
7d9697dfd073466c550a80834a0136d95c0344c52b37ee9f62986898278adaa5c7dbf416cee5014b8b5fc3c9de1181383d4b2fc48764eb89b664a2a5772fa8cb
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SSDEEP
3072:MpTJovvXFwRBW1cQoj9MYuPCNtrK6tJTVUa37hmeK:qu/d2QRYjfTVU40e
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ruuifuw.exe -
Executes dropped EXE 1 IoCs
pid Process 520 ruuifuw.exe -
Loads dropped DLL 2 IoCs
pid Process 864 e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe 864 e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe -
Adds Run key to start application 2 TTPs 52 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /l" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /q" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /J" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /t" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /Y" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /n" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /I" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /Z" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /v" ruuifuw.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /X" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /z" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /U" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /G" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /h" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /r" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /D" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /m" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /O" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /C" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /o" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /E" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /k" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /i" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /R" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /M" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /F" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /g" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /y" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /a" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /c" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /K" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /V" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /H" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /L" e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /s" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /w" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /S" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /j" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /W" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /d" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /B" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /p" ruuifuw.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /T" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /N" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /e" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /L" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /f" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /Q" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /P" ruuifuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ruuifuw = "C:\\Users\\Admin\\ruuifuw.exe /b" ruuifuw.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 864 e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe 520 ruuifuw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 864 e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe 520 ruuifuw.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 864 wrote to memory of 520 864 e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe 28 PID 864 wrote to memory of 520 864 e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe 28 PID 864 wrote to memory of 520 864 e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe 28 PID 864 wrote to memory of 520 864 e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe"C:\Users\Admin\AppData\Local\Temp\e24a7f03955fefa223517617fef8b22eb7bc85e3a47fab35b0fd51ef71442407.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:864 -
C:\Users\Admin\ruuifuw.exe"C:\Users\Admin\ruuifuw.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:520
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
136KB
MD5026e63d070f91ce849c795a1e6c35275
SHA191fcf8f734173c1d1b8b2e35e90ebc22d8776b64
SHA256b4427c6209a43e3c43b2bbaa714ad72c468397d77697be9a4b08f1dc270ad85c
SHA5121a0a692a70fa14b208034807fa6c7f0303b0953abe81d3e6431c3bee13e0015b9e021b31b32986f04f74337a94cfde0a1dd62e271e3932f7c101d748056db5b5
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Filesize
136KB
MD5026e63d070f91ce849c795a1e6c35275
SHA191fcf8f734173c1d1b8b2e35e90ebc22d8776b64
SHA256b4427c6209a43e3c43b2bbaa714ad72c468397d77697be9a4b08f1dc270ad85c
SHA5121a0a692a70fa14b208034807fa6c7f0303b0953abe81d3e6431c3bee13e0015b9e021b31b32986f04f74337a94cfde0a1dd62e271e3932f7c101d748056db5b5
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Filesize
136KB
MD5026e63d070f91ce849c795a1e6c35275
SHA191fcf8f734173c1d1b8b2e35e90ebc22d8776b64
SHA256b4427c6209a43e3c43b2bbaa714ad72c468397d77697be9a4b08f1dc270ad85c
SHA5121a0a692a70fa14b208034807fa6c7f0303b0953abe81d3e6431c3bee13e0015b9e021b31b32986f04f74337a94cfde0a1dd62e271e3932f7c101d748056db5b5
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Filesize
136KB
MD5026e63d070f91ce849c795a1e6c35275
SHA191fcf8f734173c1d1b8b2e35e90ebc22d8776b64
SHA256b4427c6209a43e3c43b2bbaa714ad72c468397d77697be9a4b08f1dc270ad85c
SHA5121a0a692a70fa14b208034807fa6c7f0303b0953abe81d3e6431c3bee13e0015b9e021b31b32986f04f74337a94cfde0a1dd62e271e3932f7c101d748056db5b5