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Analysis
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max time kernel
177s -
max time network
189s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07/11/2022, 01:50
Static task
static1
Behavioral task
behavioral1
Sample
50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe
Resource
win10v2004-20220812-en
General
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Target
50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe
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Size
168KB
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MD5
0cd9e8491588e9bf65d2f9c2c953cd50
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SHA1
14d311aa47ebbd3eb8c72b0b289d614b365c7141
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SHA256
50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905
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SHA512
afbe1907bd34bddb11aaeaa4d820243577d922cea2b168aa76d2b587d04a39e66ffe4e9e5968b91dce3cbf6a09ccdd9c99b7230c6583a3cd8d2d39ff65674455
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SSDEEP
3072:OTvj/t8bVdipDivEtGSK4KCIByHwntt+PNaA8tnc:OTrqJdyDHtGSK5yHa+F1gc
Malware Config
Signatures
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Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\SogouPinyinUp.exe 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe File created C:\Program Files\common\Utility.dll 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.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 Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Toolbar explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 explorer.exe -
Modifies registry class 38 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 60003100000000000c55929b122050524f4752417e330000480009000400efbe874fdb496755ae622e000000500500000000010000000000000000000000000000002a3cc800500072006f006700720061006d004400610074006100000018000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0 = 4a003100000000006755ae62102058585800380009000400efbe6755ae626755ae622e000000232e020000000600000000000000000000000000000037efa400580058005800000012000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0 = 8600310000000000874fdc49112053544152544d7e3100006e0009000400efbe874fdb496755ae622e0000009d050000000001000000000000000000440000000000581df5005300740061007200740020004d0065006e007500000040007300680065006c006c00330032002e0064006c006c002c002d0032003100370038003600000018000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\0\NodeSlot = "1" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 5c003100000000000c550b9b14204d4943524f537e310000440009000400efbe874fdb496755ae622e000000510500000000010000000000000000000000000000008a66e5004d006900630072006f0073006f0066007400000018000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0\MRUListEx = 00000000ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 56003100000000000c551899102057696e646f777300400009000400efbe874fdb496755ae622e0000008205000000000100000000000000000000000000000058922900570069006e0064006f0077007300000016000000 explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\0\0 = 82003100000000006755ae62112050726f6772616d7300006a0009000400efbe874fdb496755ae622e0000009e0500000000010000000000000000004000000000003ef1c300500072006f006700720061006d007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100370038003200000018000000 explorer.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 explorer.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1476 explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1476 explorer.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1476 explorer.exe 1476 explorer.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4852 wrote to memory of 4836 4852 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe 81 PID 4852 wrote to memory of 4836 4852 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe 81 PID 4852 wrote to memory of 4836 4852 50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe"C:\Users\Admin\AppData\Local\Temp\50c9a604d52048f4ed1dfe847d277d2c305afb710adae8f418e659bc03bfa905.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4852 -
C:\Windows\SysWOW64\Explorer.exeExplorer /select,C:\ProgramData\Microsoft\Windows\Start Menu\Programs\XXX\calcx.lnk2⤵PID:4836
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1476
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4704
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
14KB
MD554e9f974ac4ef96572043259326b21fc
SHA1da8deb9e6b39f00548dff9116ce426f1c1e45496
SHA256100f3191193ff237ce9b30ba2c1985d72cad896dcacd1c9df324905893ef8227
SHA512a71b8a526a410bcb0face2131af7d7b64f2bccdb184e72a623eaaa4a24f80f8b5a7a74041104e212fbbab51a18be71b79726ed6121cc8a04c55f396bd484fb5a
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Filesize
768B
MD52ef81127455f204ebca8ca8963b6c913
SHA1d22a543a9feb07fb1df8af096c7ddb2b94b2d36d
SHA256946e84af50bcb85bd9edfacfe26f5e612d2bb28b6bf6c98145fde9e2d03665a7
SHA512422f59849e9d66dfcc6d381759817f5c8d5e99eb9d10e160f32a360c1abbf454e3a7d0569f5a0e5b2ff6aad36637f050986d92ac5400d87c158cc7ddb77ef12a