dridex | af3c57b18d35f88f076c5b15fd7cc814d4e7724037158d7e5a3facf9bece3d26

General

Target

af3c57b18d35f88f076c5b15fd7cc814d4e7724037158d7e5a3facf9bece3d26.dll
Size

599KB
MD5

353b8dd09d93ae66264c55e038c756bf
SHA1

0a9f66a155ccbef2fa4f0528018b9b6e6096fb93
SHA256

af3c57b18d35f88f076c5b15fd7cc814d4e7724037158d7e5a3facf9bece3d26
SHA512

d4d767470ca70e7d53e11b859827d1ae3997ce8156724dc08c1e925aeb5af3b774964b49830de0a647230db36c13ed0aae8f93cf7282b867337833ffada64a40

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

77.220.64.53:443

172.96.190.154:4664

209.126.111.137:33443

167.99.158.82:33443

rc4.plain

Signatures

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

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1912-4-0x0000000000310000-0x000000000034D000-memory.dmp	dridex_ldr
behavioral1/memory/1912-6-0x0000000000310000-0x000000000034D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1912 rundll32.exe
7 1912 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

Processes:

rundll32.exe

description ioc process

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

flow	pid	process
5	1912	rundll32.exe
7	1912	rundll32.exe

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 596 wrote to memory of 1912	596	rundll32.exe	rundll32.exe
PID 596 wrote to memory of 1912	596	rundll32.exe	rundll32.exe
PID 596 wrote to memory of 1912	596	rundll32.exe	rundll32.exe
PID 596 wrote to memory of 1912	596	rundll32.exe	rundll32.exe
PID 596 wrote to memory of 1912	596	rundll32.exe	rundll32.exe
PID 596 wrote to memory of 1912	596	rundll32.exe	rundll32.exe
PID 596 wrote to memory of 1912	596	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\af3c57b18d35f88f076c5b15fd7cc814d4e7724037158d7e5a3facf9bece3d26.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:596

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\af3c57b18d35f88f076c5b15fd7cc814d4e7724037158d7e5a3facf9bece3d26.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1912

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1768-7-0x000007FEF7E50000-0x000007FEF80CA000-memory.dmp

Filesize
2.5MB

Download
memory/1912-2-0x0000000000000000-mapping.dmp

Download
memory/1912-3-0x00000000767C1000-0x00000000767C3000-memory.dmp

Filesize
8KB

Download
memory/1912-4-0x0000000000310000-0x000000000034D000-memory.dmp

Filesize
244KB

Download
memory/1912-5-0x0000000000290000-0x000000000030C000-memory.dmp

Filesize
496KB

Download
memory/1912-6-0x0000000000310000-0x000000000034D000-memory.dmp

Filesize
244KB

Download

Analysis

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