dridex | cd44b8b3e980585d428b6a3faa16b7a52c96019f6afa06da00400551c87155e0

General

Target

cd44b8b3e980585d428b6a3faa16b7a52c96019f6afa06da00400551c87155e0.dll
Size

196KB
MD5

dd76f4cb0ba5e0b4bbbce3e1039631dc
SHA1

390b2c808937b4bf28c7d3589737b95f6a9030c8
SHA256

cd44b8b3e980585d428b6a3faa16b7a52c96019f6afa06da00400551c87155e0
SHA512

42d94e4a15cac0ac2fd9c0a1fb5a72bfaf8ddb59f0362c6af8445e08be37772cffae3ac6dbbf222df189161c1f0444e01c7075b008d62315d74a1f80da5400e2

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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/1804-4-0x0000000075580000-0x00000000755B3000-memory.dmp	dridex_ldr
behavioral1/memory/1804-6-0x0000000075580000-0x000000007559F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

7 1804 rundll32.exe
9 1804 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
7	1804	rundll32.exe
9	1804	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 1184 wrote to memory of 1804	1184	rundll32.exe	rundll32.exe
PID 1184 wrote to memory of 1804	1184	rundll32.exe	rundll32.exe
PID 1184 wrote to memory of 1804	1184	rundll32.exe	rundll32.exe
PID 1184 wrote to memory of 1804	1184	rundll32.exe	rundll32.exe
PID 1184 wrote to memory of 1804	1184	rundll32.exe	rundll32.exe
PID 1184 wrote to memory of 1804	1184	rundll32.exe	rundll32.exe
PID 1184 wrote to memory of 1804	1184	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cd44b8b3e980585d428b6a3faa16b7a52c96019f6afa06da00400551c87155e0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1184

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cd44b8b3e980585d428b6a3faa16b7a52c96019f6afa06da00400551c87155e0.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1804

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/1388-7-0x000007FEF7E30000-0x000007FEF80AA000-memory.dmp

Filesize
2.5MB

Download
memory/1804-2-0x0000000000000000-mapping.dmp

Download
memory/1804-3-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1804-4-0x0000000075580000-0x00000000755B3000-memory.dmp

Filesize
204KB

Download
memory/1804-5-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1804-6-0x0000000075580000-0x000000007559F000-memory.dmp

Filesize
124KB

Download

Analysis

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