Resubmissions
05-11-2024 03:00
241105-dhtwfatfjl 1005-11-2024 02:00
241105-cfat4ssbpc 1005-11-2024 02:00
241105-ce5m4asfrr 1005-11-2024 01:20
241105-bqgjza1jgz 1005-11-2024 01:15
241105-bmjj6a1epb 10Analysis
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max time kernel
2s -
max time network
4s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
05-11-2024 01:20
Behavioral task
behavioral1
Sample
BYJ6K_Built.exe
Resource
win11-20241007-en
General
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Target
BYJ6K_Built.exe
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Size
7.4MB
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MD5
4d2f1d31e197b58186468092adb4505d
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SHA1
760cbb050f80760180e30b496498354aa3108505
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SHA256
5eb35313b56c46a5b9a57328aa26ca8e43731e39e3e1e6349c049343b7c585d6
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SHA512
b600776f4b6abc5c47ee62e4ca9259e91d2a1a1a7e1aa380db04bff62a251eb7ad5e168c1d1aab6be8f80d54724ef7d89fa0bb3dee57f4e7f68f66cd791e6bdf
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SSDEEP
98304:W6Si8TRhhurErvz81LpWjjUa50ZtPvYRt2e4GFNGjfzfbIbApJo4EwKhOh112mJw:W9/urErvI9pWjgfPvzm6gsFEF4f4
Malware Config
Signatures
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Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 1060 powershell.exe 2992 powershell.exe 1712 powershell.exe -
Clipboard Data 1 TTPs 2 IoCs
Adversaries may collect data stored in the clipboard from users copying information within or between applications.
pid Process 2824 cmd.exe 5016 powershell.exe -
Loads dropped DLL 17 IoCs
pid Process 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe 2112 BYJ6K_Built.exe -
Enumerates processes with tasklist 1 TTPs 3 IoCs
pid Process 1544 tasklist.exe 2264 tasklist.exe 1992 tasklist.exe -
resource yara_rule behavioral1/files/0x001900000002ab6a-21.dat upx behavioral1/memory/2112-25-0x00007FF8E8BB0000-0x00007FF8E91A2000-memory.dmp upx behavioral1/files/0x001900000002ab54-27.dat upx behavioral1/files/0x004600000002ab66-29.dat upx behavioral1/memory/2112-32-0x00007FF8FFB40000-0x00007FF8FFB4F000-memory.dmp upx behavioral1/memory/2112-31-0x00007FF8FE9F0000-0x00007FF8FEA14000-memory.dmp upx behavioral1/files/0x001900000002ab6d-38.dat upx behavioral1/files/0x001d00000002ab53-41.dat upx behavioral1/files/0x001900000002ab5a-45.dat upx behavioral1/files/0x001c00000002ab59-44.dat upx behavioral1/files/0x001900000002ab58-43.dat upx behavioral1/files/0x001900000002ab55-42.dat upx behavioral1/files/0x001c00000002ab71-40.dat upx behavioral1/files/0x001900000002ab70-39.dat upx behavioral1/files/0x001900000002ab67-35.dat upx behavioral1/files/0x001c00000002ab65-34.dat upx behavioral1/files/0x001900000002ab5b-46.dat upx behavioral1/files/0x001c00000002ab5f-48.dat upx behavioral1/files/0x001900000002ab5e-47.dat upx behavioral1/memory/2112-54-0x00007FF8FA8D0000-0x00007FF8FA8FD000-memory.dmp upx behavioral1/memory/2112-56-0x00007FF8FAC60000-0x00007FF8FAC79000-memory.dmp upx behavioral1/memory/2112-58-0x00007FF8FA040000-0x00007FF8FA063000-memory.dmp upx behavioral1/memory/2112-60-0x00007FF8E84F0000-0x00007FF8E866E000-memory.dmp upx behavioral1/memory/2112-64-0x00007FF8FDB70000-0x00007FF8FDB7D000-memory.dmp upx behavioral1/memory/2112-63-0x00007FF8FAD90000-0x00007FF8FADA9000-memory.dmp upx behavioral1/memory/2112-66-0x00007FF8FA450000-0x00007FF8FA483000-memory.dmp upx behavioral1/memory/2112-72-0x00007FF8F9B30000-0x00007FF8F9BFD000-memory.dmp upx behavioral1/memory/2112-74-0x00007FF8E7FC0000-0x00007FF8E84E9000-memory.dmp upx behavioral1/memory/2112-71-0x00007FF8FE9F0000-0x00007FF8FEA14000-memory.dmp upx behavioral1/memory/2112-70-0x00007FF8E8BB0000-0x00007FF8E91A2000-memory.dmp upx behavioral1/memory/2112-76-0x00007FF8FA020000-0x00007FF8FA034000-memory.dmp upx behavioral1/memory/2112-79-0x00007FF8FD720000-0x00007FF8FD72D000-memory.dmp upx behavioral1/memory/2112-78-0x00007FF8FA8D0000-0x00007FF8FA8FD000-memory.dmp upx behavioral1/memory/2112-84-0x00007FF8FAC60000-0x00007FF8FAC79000-memory.dmp upx behavioral1/memory/2112-85-0x00007FF8E8A90000-0x00007FF8E8BAC000-memory.dmp upx -
System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs
Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.
pid Process 1936 cmd.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2188 wrote to memory of 2112 2188 BYJ6K_Built.exe 80 PID 2188 wrote to memory of 2112 2188 BYJ6K_Built.exe 80 PID 2112 wrote to memory of 4280 2112 BYJ6K_Built.exe 82 PID 2112 wrote to memory of 4280 2112 BYJ6K_Built.exe 82 PID 2112 wrote to memory of 2076 2112 BYJ6K_Built.exe 83 PID 2112 wrote to memory of 2076 2112 BYJ6K_Built.exe 83 PID 2112 wrote to memory of 224 2112 BYJ6K_Built.exe 84 PID 2112 wrote to memory of 224 2112 BYJ6K_Built.exe 84 PID 2112 wrote to memory of 2256 2112 BYJ6K_Built.exe 86 PID 2112 wrote to memory of 2256 2112 BYJ6K_Built.exe 86 PID 4280 wrote to memory of 1060 4280 cmd.exe 90 PID 4280 wrote to memory of 1060 4280 cmd.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\BYJ6K_Built.exe"C:\Users\Admin\AppData\Local\Temp\BYJ6K_Built.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2188 -
C:\Users\Admin\AppData\Local\Temp\BYJ6K_Built.exe"C:\Users\Admin\AppData\Local\Temp\BYJ6K_Built.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2112 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\BYJ6K_Built.exe'"3⤵
- Suspicious use of WriteProcessMemory
PID:4280 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\BYJ6K_Built.exe'4⤵
- Command and Scripting Interpreter: PowerShell
PID:1060
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2 & "%ProgramFiles%\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All"3⤵PID:2076
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend4⤵
- Command and Scripting Interpreter: PowerShell
PID:1712
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "mshta "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('niggafart.com', 0, 'ez rat skid', 0+16);close()""3⤵PID:224
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C:\Windows\system32\mshta.exemshta "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('niggafart.com', 0, 'ez rat skid', 0+16);close()"4⤵PID:4392
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "powershell -Command Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\ .scr'"3⤵PID:2256
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\ .scr'4⤵
- Command and Scripting Interpreter: PowerShell
PID:2992
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "tasklist /FO LIST"3⤵PID:2748
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C:\Windows\system32\tasklist.exetasklist /FO LIST4⤵
- Enumerates processes with tasklist
PID:1544
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "tasklist /FO LIST"3⤵PID:4160
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C:\Windows\system32\tasklist.exetasklist /FO LIST4⤵
- Enumerates processes with tasklist
PID:2264
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntivirusProduct Get displayName"3⤵PID:4924
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C:\Windows\System32\Wbem\WMIC.exeWMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntivirusProduct Get displayName4⤵PID:3416
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "powershell Get-Clipboard"3⤵
- Clipboard Data
PID:2824 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell Get-Clipboard4⤵
- Clipboard Data
PID:5016
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "tasklist /FO LIST"3⤵PID:1888
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C:\Windows\system32\tasklist.exetasklist /FO LIST4⤵
- Enumerates processes with tasklist
PID:1992
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "tree /A /F"3⤵PID:2348
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "netsh wlan show profile"3⤵
- System Network Configuration Discovery: Wi-Fi Discovery
PID:1936
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "systeminfo"3⤵PID:792
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "REG QUERY HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters /V DataBasePath"3⤵PID:3700
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
116KB
MD5be8dbe2dc77ebe7f88f910c61aec691a
SHA1a19f08bb2b1c1de5bb61daf9f2304531321e0e40
SHA2564d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
SHA5120da644472b374f1da449a06623983d0477405b5229e386accadb154b43b8b083ee89f07c3f04d2c0c7501ead99ad95aecaa5873ff34c5eeb833285b598d5a655
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Filesize
48KB
MD53bd0dd2ed98fca486ec23c42a12978a8
SHA163df559f4f1a96eb84028dc06eaeb0ef43551acd
SHA2566beb733f2e27d25617d880559299fbebd6a9dac51d6a9d0ab14ae6df9877da07
SHA5129ffa7da0e57d98b8fd6b71bc5984118ea0b23bf11ea3f377dabb45b42f2c8757216bc38ddd05b50c0bc1c69c23754319cef9ffc662d4199f7c7e038a0fb18254
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Filesize
58KB
MD5343e1a85da03e0f80137719d48babc0f
SHA10702ba134b21881737585f40a5ddc9be788bab52
SHA2567b68a4ba895d7bf605a4571d093ae3190eac5e813a9eb131285ae74161d6d664
SHA5121b29efad26c0a536352bf8bb176a7fe9294e616cafb844c6d861561e59fbda35e1f7c510b42e8ed375561a5e1d2392b42f6021acc43133a27ae4b7006e465ba8
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Filesize
107KB
MD58b623d42698bf8a7602243b4be1f775d
SHA1f9116f4786b5687a03c75d960150726843e1bc25
SHA2567c2f0a65e38179170dc69e1958e7d21e552eca46fcf62bbb842b4f951a86156c
SHA512aa1b497629d7e57b960e4b0ab1ea3c28148e2d8ebd02905e89b365f508b945a49aacfbd032792101668a32f8666f8c4ef738de7562979b7cf89e0211614fa21a
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Filesize
35KB
MD5d71df4f6e94bea5e57c267395ad2a172
SHA15c82bca6f2ce00c80e6fe885a651b404052ac7d0
SHA2568bc92b5a6c1e1c613027c8f639cd8f9f1218fc4f7d5526cfcb9c517a2e9e14c2
SHA512e794d9ae16f9a2b0c52e0f9c390d967ba3287523190d98279254126db907ba0e5e87e5525560273798cc9f32640c33c8d9f825ff473524d91b664fe91e125549
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Filesize
86KB
MD5932147ac29c593eb9e5244b67cf389bb
SHA13584ff40ab9aac1e557a6a6009d10f6835052cde
SHA256bde9bccb972d356b8de2dc49a4d21d1b2f9711bbc53c9b9f678b66f16ca4c5d3
SHA5126e36b8d8c6dc57a0871f0087757749c843ee12800a451185856a959160f860402aa16821c4ea659ea43be2c44fcdb4df5c0f889c21440aceb9ee1bc57373263c
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Filesize
25KB
MD50e5997263833ce8ce8a6a0ec35982a37
SHA196372353f71aaa56b32030bb5f5dd5c29b854d50
SHA2560489700a866dddfa50d6ee289f7cca22c6dced9fa96541b45a04dc2ffb97122e
SHA512a00a667cc1bbd40befe747fbbc10f130dc5d03b777cbe244080498e75a952c17d80db86aa35f37b14640ed20ef21188ea99f3945553538e61797b575297c873f
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Filesize
43KB
MD52957b2d82521ed0198851d12ed567746
SHA1ad5fd781490ee9b1ad2dd03e74f0779fb5f9afc2
SHA2561e97a62f4f768fa75bac47bba09928d79b74d84711b6488905f8429cd46f94a2
SHA512b557cf3fe6c0cc188c6acc0a43b44f82fcf3a6454f6ed7a066d75da21bb11e08cfa180699528c39b0075f4e79b0199bb05e57526e8617036411815ab9f406d35
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Filesize
56KB
MD5a9d2c3cf00431d2b8c8432e8fb1feefd
SHA11c3e2fe22e10e1e9c320c1e6f567850fd22c710c
SHA256aa0611c451b897d27dd16236ce723303199c6eacfc82314f342c7338b89009f3
SHA5121b5ada1dac2ab76f49de5c8e74542e190455551dfd1dfe45c9ccc3edb34276635613dbcfadd1e5f4383a0d851c6656a7840c327f64b50b234f8fdd469a02ef73
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Filesize
65KB
MD5e5f6bff7a8c2cd5cb89f40376dad6797
SHA1b854fd43b46a4e3390d5f9610004010e273d7f5f
SHA2560f8493de58e70f3520e21e05d78cfd6a7fcde70d277e1874183e2a8c1d3fb7d5
SHA5125b7e6421ad39a61dabd498bd0f7aa959a781bc82954dd1a74858edfea43be8e3afe3d0cacb272fa69dc897374e91ea7c0570161cda7cc57e878b288045ee98d9
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Filesize
1.4MB
MD5add95481a8e9d5743eee394036ca4914
SHA1eab5d38e7fa33ae86452e6609ed8afed21516969
SHA256396171544049d4554472e78cb41f873f7d8951d7450685f364d4487d09b98ad8
SHA512161b64229f676d1894954bef08fbc0cacc9a5aff5cbf607918f919aa7065e9b5edbaed7057d0113eec24c688b60e7dcd0aa8610105ab350c6c5c30e0f5e6db1a
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Filesize
119KB
MD595c63624b92b57a32698e5e4a001429e
SHA18c9f37d2b05165a4509d243637f1245afdfef5ce
SHA2566e1fa0b72c63d07977b424b952190c975e475c95b8590a8d8f84bbfa6d580d08
SHA512d3c0a1e58da5d9bc0a38965df2bd55cd5d8aac669f527ff3c89d8591d8fc594d22fa5f980fb9eddd327f0b334851f33de85729ff1509732684bbe0da4e632cc2
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Filesize
1.6MB
MD57f1b899d2015164ab951d04ebb91e9ac
SHA11223986c8a1cbb57ef1725175986e15018cc9eab
SHA25641201d2f29cf3bc16bf32c8cecf3b89e82fec3e5572eb38a578ae0fb0c5a2986
SHA512ca227b6f998cacca3eb6a8f18d63f8f18633ab4b8464fb8b47caa010687a64516181ad0701c794d6bfe3f153662ea94779b4f70a5a5a94bb3066d8a011b4310d
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Filesize
29KB
MD508b000c3d990bc018fcb91a1e175e06e
SHA1bd0ce09bb3414d11c91316113c2becfff0862d0d
SHA256135c772b42ba6353757a4d076ce03dbf792456143b42d25a62066da46144fece
SHA5128820d297aeda5a5ebe1306e7664f7a95421751db60d71dc20da251bcdfdc73f3fd0b22546bd62e62d7aa44dfe702e4032fe78802fb16ee6c2583d65abc891cbf
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Filesize
222KB
MD5264be59ff04e5dcd1d020f16aab3c8cb
SHA12d7e186c688b34fdb4c85a3fce0beff39b15d50e
SHA256358b59da9580e7102adfc1be9400acea18bc49474db26f2f8bacb4b8839ce49d
SHA5129abb96549724affb2e69e5cb2c834ecea3f882f2f7392f2f8811b8b0db57c5340ab21be60f1798c7ab05f93692eb0aeab077caf7e9b7bb278ad374ff3c52d248
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Filesize
1.6MB
MD5ccdbd8027f165575a66245f8e9d140de
SHA1d91786422ce1f1ad35c528d1c4cd28b753a81550
SHA256503cd34daed4f6d320731b368bbd940dbac1ff7003321a47d81d81d199cca971
SHA512870b54e4468db682b669887aeef1ffe496f3f69b219bda2405ac502d2dcd67b6542db6190ea6774abf1db5a7db429ce8f6d2fc5e88363569f15cf4df78da2311
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Filesize
615KB
MD59c223575ae5b9544bc3d69ac6364f75e
SHA18a1cb5ee02c742e937febc57609ac312247ba386
SHA25690341ac8dcc9ec5f9efe89945a381eb701fe15c3196f594d9d9f0f67b4fc2213
SHA51257663e2c07b56024aaae07515ee3a56b2f5068ebb2f2dc42be95d1224376c2458da21c965aab6ae54de780cb874c2fc9de83d9089abf4536de0f50faca582d09
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Filesize
456B
MD54531984cad7dacf24c086830068c4abe
SHA1fa7c8c46677af01a83cf652ef30ba39b2aae14c3
SHA25658209c8ab4191e834ffe2ecd003fd7a830d3650f0fd1355a74eb8a47c61d4211
SHA51200056f471945d838ef2ce56d51c32967879fe54fcbf93a237ed85a98e27c5c8d2a39bc815b41c15caace2071edd0239d775a31d1794dc4dba49e7ecff1555122
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Filesize
25KB
MD5e021cf8d94cc009ff79981f3472765e7
SHA1c43d040b0e84668f3ae86acc5bd0df61be2b5374
SHA256ab40bf48a6db6a00387aece49a03937197bc66b4450559feec72b6f74fc4d01e
SHA512c5ca57f8e4c0983d9641412e41d18abd16fe5868d016a5c6e780543860a9d3b37cc29065799951cb13dc49637c45e02efb6b6ffeaf006e78d6ce2134eb902c67
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Filesize
644KB
MD574b347668b4853771feb47c24e7ec99b
SHA121bd9ca6032f0739914429c1db3777808e4806b0
SHA2565913eb3f3d237632c2f0d6e32ca3e993a50b348033bb6e0da8d8139d44935f9e
SHA512463d8864ada5f21a70f8db15961a680b00ee040a41ea660432d53d0ee3ccd292e6c11c4ec52d1d848a7d846ad3caf923cbc38535754d65bbe190e095f5acb8c3
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Filesize
295KB
MD5bc28491251d94984c8555ed959544c11
SHA1964336b8c045bf8bb1f4d12de122cfc764df6a46
SHA256f308681ef9c4bb4ea6adae93939466df1b51842554758cb2d003131d7558edd4
SHA512042d072d5f73fe3cd59394fc59436167c40b4e0cf7909afcad1968e0980b726845f09bf23b4455176b12083a91141474e9e0b7d8475afb0e3de8e1e4dbad7ec0
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82