Analysis
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max time kernel
140s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
03-08-2023 21:49
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
nerjxb2n6/n81ai.exe
Resource
win7-20230712-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
nerjxb2n6/n81ai.exe
Resource
win10v2004-20230703-en
windows10-2004-x64
7 signatures
150 seconds
General
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Target
nerjxb2n6/n81ai.exe
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Size
872KB
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MD5
c56b5f0201a3b3de53e561fe76912bfd
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SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417
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SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
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SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
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SSDEEP
12288:6pVWeOV7GtINsegA/hMyyzlcqikvAfcN9b2MyZa31twoPTdFxgawV2M01:6T3E53Myyzl0hMf1tr7Caw8M01
Score
3/10
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2532 3080 WerFault.exe 82 -
Modifies registry class 64 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202020202020202 n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "4294967295" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\Shell\SniffedFolderType = "Generic" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1\0\0\0\0\0 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\Shell\SniffedFolderType = "Generic" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202020202 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\9 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616257" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1\0\0 = 5000310000000000e556819c100041646d696e003c0009000400efbee3568b6403574aae2e00000082e101000000010000000000000000000000000000007edb1f00410064006d0069006e00000014000000 n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1\0\0\NodeSlot = "5" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\Shell\SniffedFolderType = "Generic" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7} n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1\0\0\0\0\0\NodeSlot = "8" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1\0\0\0\0\NodeSlot = "7" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656} n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\NodeSlot = "2" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "6" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\Shell\SniffedFolderType = "Generic" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7} n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1\0\0\0\0\0\MRUListEx = 00000000ffffffff n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Mode = "4" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\LogicalViewMode = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "48" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616257" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\6 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202020202020202 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" n81ai.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3080 n81ai.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3080 n81ai.exe 3080 n81ai.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 3080 n81ai.exe 3080 n81ai.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3080 n81ai.exe 3080 n81ai.exe 3080 n81ai.exe 3080 n81ai.exe 3080 n81ai.exe 3080 n81ai.exe 3080 n81ai.exe 3080 n81ai.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\nerjxb2n6\n81ai.exe"C:\Users\Admin\AppData\Local\Temp\nerjxb2n6\n81ai.exe"1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:3080 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3080 -s 20882⤵
- Program crash
PID:2532
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}1⤵PID:4236
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3080 -ip 30801⤵PID:2756