dridex | e028f271461ba72f91934ada56064d0eab66b4ad3066d653632fad04351efb00

General

Target
c6f2239754469a59c8f97e30df2e0950.xls
Size 315KB
Sample210722-prpyahwfbe
SHA256 e028f271461ba72f91934ada56064d0eab66b4ad3066d653632fad04351efb00
MD5 c6f2239754469a59c8f97e30df2e0950
SHA1 4310f7e6baaf4f86defd9c052ea40649f6b04e9e
SHA512 a5d6d2c4bbfc96626fa2e1a6969b4692f0529f0971b7b4f217e099bb4852427beb669f900f820206c542aab2321411bf4aa3e71e2c2847648806292478aa46dc
MD5 SHA1 SHA512

Score

10^/10

dridex 22202 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

22202

C2

178.238.236.59:443
104.245.52.73:5007
81.0.236.93:13786

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1964	2000	mshta.exe	24

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/772-73-0x000000006AF50000-0x000000006AF81000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

flow	pid	Process
2	1964	mshta.exe

Downloads MZ/PE file

Loads dropped DLL 4 IoCs

pid	Process
772	rundll32.exe
772	rundll32.exe
772	rundll32.exe
772	rundll32.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	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 (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
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\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\Main	mshta.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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2000	EXCEL.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2000	EXCEL.EXE
2000	EXCEL.EXE
2000	EXCEL.EXE
2000	EXCEL.EXE
2000	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 1964	2000	EXCEL.EXE	26
PID 2000 wrote to memory of 1964	2000	EXCEL.EXE	26
PID 2000 wrote to memory of 1964	2000	EXCEL.EXE	26
PID 2000 wrote to memory of 1964	2000	EXCEL.EXE	26
PID 1964 wrote to memory of 772	1964	mshta.exe	31
PID 1964 wrote to memory of 772	1964	mshta.exe	31
PID 1964 wrote to memory of 772	1964	mshta.exe	31
PID 1964 wrote to memory of 772	1964	mshta.exe	31
PID 1964 wrote to memory of 772	1964	mshta.exe	31
PID 1964 wrote to memory of 772	1964	mshta.exe	31
PID 1964 wrote to memory of 772	1964	mshta.exe	31

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\c6f2239754469a59c8f97e30df2e0950.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\mshta.exe
  mshta C:\ProgramData//klRangeAutoFormatReport9.sct
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\ProgramData\qPlus.dll,SetRealTimeUsage
    3⤵
    - Loads dropped DLL
    - Checks whether UAC is enabled
    PID:772

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/772-73-0x000000006AF50000-0x000000006AF81000-memory.dmp

Download

memory/772-75-0x0000000000180000-0x0000000000186000-memory.dmp

Download

memory/1964-64-0x00000000765F1000-0x00000000765F3000-memory.dmp

Download

memory/2000-60-0x000000002F761000-0x000000002F764000-memory.dmp

Download

memory/2000-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Download

memory/2000-61-0x0000000071CC1000-0x0000000071CC3000-memory.dmp

Download

memory/2000-76-0x000000005FFF0000-0x0000000060000000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads