Analysis
-
max time kernel
120s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-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
-
Target
nerjxb2n6/n81ai.exe
-
Size
872KB
-
MD5
c56b5f0201a3b3de53e561fe76912bfd
-
SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417
-
SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
-
SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
-
SSDEEP
12288:6pVWeOV7GtINsegA/hMyyzlcqikvAfcN9b2MyZa31twoPTdFxgawV2M01:6T3E53Myyzl0hMf1tr7Caw8M01
Score
3/10
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 1 IoCs
pid pid_target Process procid_target 2044 1820 WerFault.exe 27 -
Modifies registry class 64 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\Shell\SniffedFolderType = "Generic" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\MRUListEx = 00000000ffffffff n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_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-1-5-21-2969888527-3102471180-2307688834-1000_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-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202020202020202 n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_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-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0 n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\ComDlg n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0 n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202020202020202 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7} n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5 n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\Shell\SniffedFolderType = "Generic" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0\MRUListEx = ffffffff n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\7 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0 = 5200310000000000ec561a60122041707044617461003c0008000400efbeec561a60ec561a602a000000eb0100000000020000000000000000000000000000004100700070004400610074006100000016000000 n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\8\Shell\SniffedFolderType = "Generic" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\IconSize = "16" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_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-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "48" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\AllFolders\ComDlg\{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}\{82BA0782-5B7A-4569-B5D7-EC83085F08CC}\LogicalViewMode = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\NodeSlot = "5" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\0 n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" n81ai.exe Set value (str) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\7\Shell n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\1\0\0\0\0\MRUListEx = 00000000ffffffff n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7} n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\5\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" n81ai.exe Set value (data) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" n81ai.exe Set value (int) \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\6\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\9 n81ai.exe Key created \REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\4\Shell n81ai.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1820 n81ai.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1820 n81ai.exe 1820 n81ai.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1820 n81ai.exe 1820 n81ai.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1820 n81ai.exe 1820 n81ai.exe 1820 n81ai.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1820 wrote to memory of 2044 1820 n81ai.exe 31 PID 1820 wrote to memory of 2044 1820 n81ai.exe 31 PID 1820 wrote to memory of 2044 1820 n81ai.exe 31 PID 1820 wrote to memory of 2044 1820 n81ai.exe 31
Processes
-
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
- Suspicious use of WriteProcessMemory
PID:1820 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 12362⤵
- Program crash
PID:2044
-
-
C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}1⤵PID:2092