Analysis
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max time kernel
168s -
max time network
174s -
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, 19:24
Static task
static1
Behavioral task
behavioral1
Sample
98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe
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Size
116KB
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MD5
52bf1ea0c4232e3de7f14dfed7122599
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SHA1
4a7f2ff38c6a6713ac44ad7c8e9ed3ecde8b122d
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SHA256
98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a
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SHA512
29d5d328a337d3687b2ec9b86dfe0841542c08ab0d3a97b3d9d7e33cadeca028e04639c1a91ad7f8195a9e236d124272857934e36452acb05320152967d71795
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SSDEEP
1536:14pxoB++PL8Kw6KBOIW4Z8HO1Zwt0f4HeDUEdMOPy9sbgNWwo7JaSU:6pj+PLfIr1ZNDUEdvwQG
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" 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ylmim.exe -
Executes dropped EXE 1 IoCs
pid Process 1408 ylmim.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 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /D" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /o" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /P" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /R" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /n" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /r" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /B" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /K" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /h" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /W" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /c" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /b" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /i" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /Y" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /j" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /H" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /X" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /V" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /v" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /F" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /N" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /w" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /s" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /J" ylmim.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /s" 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /u" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /y" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /k" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /Q" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /e" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /l" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /A" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /E" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /U" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /Z" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /T" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /G" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /d" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /p" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /I" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /a" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /m" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /O" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /g" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /q" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /M" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /L" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /S" ylmim.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /z" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /f" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /C" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /t" ylmim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ylmim = "C:\\Users\\Admin\\ylmim.exe /x" ylmim.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 2220 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe 2220 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe 1408 ylmim.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2220 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe 1408 ylmim.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2220 wrote to memory of 1408 2220 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe 79 PID 2220 wrote to memory of 1408 2220 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe 79 PID 2220 wrote to memory of 1408 2220 98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.exe"C:\Users\Admin\AppData\Local\Temp\98fd1ee8d748bc48004d5eea57842e0a78ec8b19ae0fc934451a97293ebcb72a.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:2220 -
C:\Users\Admin\ylmim.exe"C:\Users\Admin\ylmim.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:1408
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
116KB
MD578752a1d38ecda7ab7cb8922b01538a0
SHA1cef7cb3aad439674c4bfd956ac6b93e832bb5e01
SHA256936653f18973cee6deab2e9bf1e5183334d8487affc71e0be595729e127eeebd
SHA512d6e2153b6876cc45d588d596acc26da25c6cfa66a0fdecb11e5ff7717fcfef2ecc0af34845e0fc58e3c777fec47c735d7415b9a233fa777d9b528455183b114c
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Filesize
116KB
MD578752a1d38ecda7ab7cb8922b01538a0
SHA1cef7cb3aad439674c4bfd956ac6b93e832bb5e01
SHA256936653f18973cee6deab2e9bf1e5183334d8487affc71e0be595729e127eeebd
SHA512d6e2153b6876cc45d588d596acc26da25c6cfa66a0fdecb11e5ff7717fcfef2ecc0af34845e0fc58e3c777fec47c735d7415b9a233fa777d9b528455183b114c