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Analysis
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max time kernel
148s -
max time network
159s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
27/11/2022, 12:10
Static task
static1
Behavioral task
behavioral1
Sample
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Resource
win10v2004-20221111-en
General
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Target
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
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Size
1.6MB
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MD5
c5845949f95c5b713b9a76d5211c835f
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SHA1
71c49204f8666bd2d54daf8bd0eabe0a4b145de7
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SHA256
c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888
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SHA512
35efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad
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SSDEEP
24576:W+zHdFeYR0iGkwFgc6BQSmtl0UrQbchemdY2GDMCbItNWf:WgW0AYySY0A3dYDA1tNWf
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1260 copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Loads dropped DLL 1 IoCs
pid Process 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\windows\CurrentVersion\Run c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\TimeHint = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe" c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000002957eedd8fa5ce41a564742adecf8381000000000200000000001066000000010000200000002903115196180bd2571899e97fb7623d224184a2bf274ecfff61f343ae08c6e0000000000e800000000200002000000076f4f97dacb63dcf3365948ee1dbd67267a213b4ed9fc84004dea87df2a45996200000008be93af2fb2273cf48fad10d419079b51b142b660a2204784c1d6920b072772340000000ce0d854dfd86edf19c00273ac706f4b33beb7fc347a79ecb2f457db3df6a75678af731faf20056072a9b2a0b996fa4d985da7eaed3d287c0bdeb6fbfe13570a5 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{E91E36E1-6F00-11ED-99B1-EA25B6F29539} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376393502" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 900afec10d03d901 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1812 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 1260 copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 1260 copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 1812 iexplore.exe 1812 iexplore.exe 756 IEXPLORE.EXE 756 IEXPLORE.EXE 756 IEXPLORE.EXE 756 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 1436 wrote to memory of 1260 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 27 PID 1436 wrote to memory of 1260 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 27 PID 1436 wrote to memory of 1260 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 27 PID 1436 wrote to memory of 1260 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 27 PID 1436 wrote to memory of 1944 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 31 PID 1436 wrote to memory of 1944 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 31 PID 1436 wrote to memory of 1944 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 31 PID 1436 wrote to memory of 1944 1436 c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe 31 PID 1824 wrote to memory of 1812 1824 explorer.exe 33 PID 1824 wrote to memory of 1812 1824 explorer.exe 33 PID 1824 wrote to memory of 1812 1824 explorer.exe 33 PID 1812 wrote to memory of 756 1812 iexplore.exe 35 PID 1812 wrote to memory of 756 1812 iexplore.exe 35 PID 1812 wrote to memory of 756 1812 iexplore.exe 35 PID 1812 wrote to memory of 756 1812 iexplore.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"C:\Users\Admin\AppData\Local\Temp\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1436 -
C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe" C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1260
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" http://jc.110160.com/ad.htm2⤵PID:1944
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Suspicious use of WriteProcessMemory
PID:1824 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" http://jc.110160.com/ad.htm2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1812 CREDAT:275457 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:756
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Filesize1.6MB
MD5c5845949f95c5b713b9a76d5211c835f
SHA171c49204f8666bd2d54daf8bd0eabe0a4b145de7
SHA256c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888
SHA51235efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad
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Filesize
603B
MD5a7a1efd1d9b0b46a169f126aa35e821e
SHA1bfa575f96730c9a554328e614d04a63233d209a1
SHA25653ad6db844137d1e62cac07f38f51de612757214dc744697bb2058b9e14b706d
SHA512a4fa003af37fbe7deb9db8c7d27bb8f9cfc8b66c146a4cdc20dc052ed3a4e11f92f216bbaf2fa84e06e8df91ba9089ed41e9218a14aed2ecd9f5a37da1303d53
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\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
Filesize1.6MB
MD5c5845949f95c5b713b9a76d5211c835f
SHA171c49204f8666bd2d54daf8bd0eabe0a4b145de7
SHA256c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888
SHA51235efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad