Analysis
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max time kernel
204s -
max time network
210s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 19:53
Static task
static1
Behavioral task
behavioral1
Sample
b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe
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Size
128KB
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MD5
d5478c8da220ebe1784bdb8c289e1dd4
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SHA1
e9b9cfd5e5684567733129fddd35e62af5caa1f6
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SHA256
b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4
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SHA512
f33c40237b5df882a1b6e01f696c4fd054b889acc347800155d39d8f752864cd6b0cd733a832a1c088a602fca358aeac557c0aa50075939e8a33ea707382ac85
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SSDEEP
1536:wuGs/90+l3R4amUwucNKI4PXaLhR8eHnuXcFBnbStr6O+o/dJNZWW7fob:wlUxPXER8eOkBWoiTgW7G
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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yeisoup.exe -
Executes dropped EXE 1 IoCs
pid Process 1884 yeisoup.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /G" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /Z" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /I" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /l" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /d" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /D" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /E" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /R" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /m" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /z" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /P" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /X" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /C" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /A" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /w" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /U" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /F" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /V" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /W" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /c" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /e" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /Z" b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /L" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /g" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /q" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /v" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /K" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /n" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /r" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /f" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /s" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /x" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /Q" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /Y" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /J" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /M" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /i" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /j" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /O" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /p" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /t" yeisoup.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /h" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /B" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /b" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /y" yeisoup.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /N" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /T" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /o" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /a" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /k" yeisoup.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeisoup = "C:\\Users\\Admin\\yeisoup.exe /u" yeisoup.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 4640 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 4640 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe 1884 yeisoup.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4640 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 1884 yeisoup.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4640 wrote to memory of 1884 4640 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 77 PID 4640 wrote to memory of 1884 4640 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 77 PID 4640 wrote to memory of 1884 4640 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 77
Processes
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C:\Users\Admin\AppData\Local\Temp\b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe"C:\Users\Admin\AppData\Local\Temp\b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.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:4640 -
C:\Users\Admin\yeisoup.exe"C:\Users\Admin\yeisoup.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:1884
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
128KB
MD5002e8713fafda8bb062a578908c20a9c
SHA1e188b2f052f3c9ee01576227845993ff67062209
SHA25668fd4a24ccf3d7c7af919faf0fc40d6e43442a0683741ccd1634b1e66d8914bf
SHA51217f49f12c6a12099bcfdfed03d27fe5ba5ed6ac1ee41520ba02708eee1c5d879b3c2fe7d9c2e20b1880643b2e899550609167be1906fe0861a4257914f3edc6a
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Filesize
128KB
MD5002e8713fafda8bb062a578908c20a9c
SHA1e188b2f052f3c9ee01576227845993ff67062209
SHA25668fd4a24ccf3d7c7af919faf0fc40d6e43442a0683741ccd1634b1e66d8914bf
SHA51217f49f12c6a12099bcfdfed03d27fe5ba5ed6ac1ee41520ba02708eee1c5d879b3c2fe7d9c2e20b1880643b2e899550609167be1906fe0861a4257914f3edc6a