Analysis
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max time kernel
152s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2022 09:21
Static task
static1
Behavioral task
behavioral1
Sample
c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe
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Size
240KB
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MD5
ce0327c98ec502c910367d7744ed7229
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SHA1
4620acb837ce07d78f2f1db967f572d02da8c7fc
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SHA256
c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a
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SHA512
c16b4e2f27f38fe9c527094bcbf89a3af1e84dd1bc368d520122fb7fbac10fb5793d38c0839e98a156715404d40ed1de1402ea96ac8772731ed0d8827ad772af
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SSDEEP
6144:BWb3dwqsNTNEXGlQR58EqxF6snji81RUinKq3aEESliDvi:BWLdQKjeaEEpe
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" c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yyxoaq.exe -
Executes dropped EXE 1 IoCs
pid Process 208 yyxoaq.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 c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /w" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /g" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /j" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /z" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /t" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /f" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /a" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /x" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /h" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /l" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /n" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /y" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /u" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /b" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /d" yyxoaq.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /s" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /r" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /i" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /v" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /p" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /m" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /c" yyxoaq.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /o" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /q" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /k" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /e" yyxoaq.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yyxoaq = "C:\\Users\\Admin\\yyxoaq.exe /j" c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.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 2564 c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe 2564 c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe 208 yyxoaq.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2564 c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe 208 yyxoaq.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2564 wrote to memory of 208 2564 c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe 80 PID 2564 wrote to memory of 208 2564 c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe 80 PID 2564 wrote to memory of 208 2564 c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.exe"C:\Users\Admin\AppData\Local\Temp\c92fb58efe88fdfee65ab9a6d984a53f363990f0b226162dbf8a78a801fb758a.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:2564 -
C:\Users\Admin\yyxoaq.exe"C:\Users\Admin\yyxoaq.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:208
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
240KB
MD504434f3df390619ee1318993e443d8b8
SHA1b734c76fc2e64ed353445a9fcb29b9ec367dd30b
SHA256db210f83ebaadd18ade2b22ad05ee643aaf01c3f69cc6dff5f2103da896a1fe9
SHA51256abfe28f1ed6a357db3e7cf6ff37c6ebdf4e1f2b198f04e4a8da3648ce3d6857f00bfe4a0e32bc5d384aee5a53e86e9cd1801ee1e6f86cf90f8352dc5c863de
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Filesize
240KB
MD504434f3df390619ee1318993e443d8b8
SHA1b734c76fc2e64ed353445a9fcb29b9ec367dd30b
SHA256db210f83ebaadd18ade2b22ad05ee643aaf01c3f69cc6dff5f2103da896a1fe9
SHA51256abfe28f1ed6a357db3e7cf6ff37c6ebdf4e1f2b198f04e4a8da3648ce3d6857f00bfe4a0e32bc5d384aee5a53e86e9cd1801ee1e6f86cf90f8352dc5c863de