dridex | 78288f10031cf16e3400b5347cf525e74fb0a291a33931ee8dcd82e56a9aa6fd

General

Target

Invoice_477336.xlsm
Size

331KB
MD5

e96dda1d1584df4f55cb661a85338e25
SHA1

2146bbc486e5fb847196f18160e41ce9387fcb4c
SHA256

78288f10031cf16e3400b5347cf525e74fb0a291a33931ee8dcd82e56a9aa6fd
SHA512

91e2b6bc3aea177f8e999f970400fc4408f5e9f13339df83a6e3a7d46ffdd129397ac0b185f22609f1245df184db84e615e2ebaa26d52ad98323e31892009f83

Score

10^/10

dridex 22202 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

22202

C2

45.79.33.48:443

139.162.202.74:5007

68.183.216.174:7443

rc4.plain

Signatures

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

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

mshta.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1292	736	mshta.exe	EXCEL.EXE

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/752-72-0x000000006A420000-0x000000006A450000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

6 1292 mshta.exe
Downloads MZ/PE file
Loads dropped DLL 4 IoCs

Processes:

rundll32.exe

pid process

752 rundll32.exe
752 rundll32.exe
752 rundll32.exe
752 rundll32.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

flow	pid	process
6	1292	mshta.exe

pid	process
752	rundll32.exe
752	rundll32.exe
752	rundll32.exe
752	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXEmshta.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

736 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

736 EXCEL.EXE
736 EXCEL.EXE
736 EXCEL.EXE
736 EXCEL.EXE
736 EXCEL.EXE

pid	process
736	EXCEL.EXE

pid	process
736	EXCEL.EXE
736	EXCEL.EXE
736	EXCEL.EXE
736	EXCEL.EXE
736	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

EXCEL.EXEmshta.exe

description	pid	process	target process
PID 736 wrote to memory of 1292	736	EXCEL.EXE	mshta.exe
PID 736 wrote to memory of 1292	736	EXCEL.EXE	mshta.exe
PID 736 wrote to memory of 1292	736	EXCEL.EXE	mshta.exe
PID 736 wrote to memory of 1292	736	EXCEL.EXE	mshta.exe
PID 1292 wrote to memory of 752	1292	mshta.exe	rundll32.exe
PID 1292 wrote to memory of 752	1292	mshta.exe	rundll32.exe
PID 1292 wrote to memory of 752	1292	mshta.exe	rundll32.exe
PID 1292 wrote to memory of 752	1292	mshta.exe	rundll32.exe
PID 1292 wrote to memory of 752	1292	mshta.exe	rundll32.exe
PID 1292 wrote to memory of 752	1292	mshta.exe	rundll32.exe
PID 1292 wrote to memory of 752	1292	mshta.exe	rundll32.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Invoice_477336.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:736

C:\Windows\SysWOW64\mshta.exe
mshta C:\ProgramData//theCountrySetting.sct
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:1292

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\ProgramData\qInconsistentFormula.dll,AddLookaside
3⤵
- Loads dropped DLL
- Checks whether UAC is enabled
PID:752

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\qInconsistentFormula.dll
MD5
2b041349b4d1d04617a46340260ee214

SHA1
762ae3523e74aaa953d7b709f292910c5d2d3420

SHA256
e0a1bef90aa90e68056306d0d0fe03043db0ba0eff2d7f63819133631302bff3

SHA512
fbabe4b984d70ce72435abdb02fac0fb2c8c670044a5419d8519dd4f938b7d7e485cb5aa9738fff68f0d4d88a9246cb444ef415ece5f38a86bdbf99d233b7322

Download Submit
C:\ProgramData\theCountrySetting.sct
MD5
a7e136eac7a8e4bbbe6194cf4635237f

SHA1
044d7d20c15106ec79ef2f69d1337904c6cbf478

SHA256
080261942e0069275b193611c4563ea753a143f608aba5d797d49d131ff72e38

SHA512
b6182347eb4a0f5f2a026c72eae35846f8f789b7aea543d37699a50c6827617403c6137f38380186c36eed8632fed075355c707d055c7bce0cc76fb6d674a853

Download Submit
\ProgramData\qInconsistentFormula.dll
MD5
2b041349b4d1d04617a46340260ee214

SHA1
762ae3523e74aaa953d7b709f292910c5d2d3420

SHA256
e0a1bef90aa90e68056306d0d0fe03043db0ba0eff2d7f63819133631302bff3

SHA512
fbabe4b984d70ce72435abdb02fac0fb2c8c670044a5419d8519dd4f938b7d7e485cb5aa9738fff68f0d4d88a9246cb444ef415ece5f38a86bdbf99d233b7322

Download Submit
\ProgramData\qInconsistentFormula.dll
MD5
2b041349b4d1d04617a46340260ee214

SHA1
762ae3523e74aaa953d7b709f292910c5d2d3420

SHA256
e0a1bef90aa90e68056306d0d0fe03043db0ba0eff2d7f63819133631302bff3

SHA512
fbabe4b984d70ce72435abdb02fac0fb2c8c670044a5419d8519dd4f938b7d7e485cb5aa9738fff68f0d4d88a9246cb444ef415ece5f38a86bdbf99d233b7322

Download Submit
\ProgramData\qInconsistentFormula.dll
MD5
2b041349b4d1d04617a46340260ee214

SHA1
762ae3523e74aaa953d7b709f292910c5d2d3420

SHA256
e0a1bef90aa90e68056306d0d0fe03043db0ba0eff2d7f63819133631302bff3

SHA512
fbabe4b984d70ce72435abdb02fac0fb2c8c670044a5419d8519dd4f938b7d7e485cb5aa9738fff68f0d4d88a9246cb444ef415ece5f38a86bdbf99d233b7322

Download Submit
\ProgramData\qInconsistentFormula.dll
MD5
2b041349b4d1d04617a46340260ee214

SHA1
762ae3523e74aaa953d7b709f292910c5d2d3420

SHA256
e0a1bef90aa90e68056306d0d0fe03043db0ba0eff2d7f63819133631302bff3

SHA512
fbabe4b984d70ce72435abdb02fac0fb2c8c670044a5419d8519dd4f938b7d7e485cb5aa9738fff68f0d4d88a9246cb444ef415ece5f38a86bdbf99d233b7322

Download Submit
memory/736-61-0x0000000070F51000-0x0000000070F53000-memory.dmp

Filesize
8KB

Download
memory/736-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/736-75-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/736-60-0x000000002F311000-0x000000002F314000-memory.dmp

Filesize
12KB

Download
memory/752-66-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/752-65-0x0000000000000000-mapping.dmp

Download
memory/752-72-0x000000006A420000-0x000000006A450000-memory.dmp

Filesize
192KB

Download
memory/752-74-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/1292-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads