dridex | 3d3f1272e9a4df7b1de123b9ed551860b00f5ace6d449b7f78c98ca5c7027d69

General

Target

3d3f1272e9a4df7b1de123b9ed551860b00f5ace6d449b7f78c98ca5c7027d69.dll
Size

168KB
MD5

84b5530f6f18391bcf54d2cdfc39eca4
SHA1

dfe936981c6d7076238e2ce6ba929a2e24dcbe7a
SHA256

3d3f1272e9a4df7b1de123b9ed551860b00f5ace6d449b7f78c98ca5c7027d69
SHA512

2169e3b25886d15d5965c59335b89532bfbbffbe5a3c24f5b917c83c48e3146a5f88e989ce623761c37279921419bf58306b1bbec9d7af190886f5a2d98cc28e

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

173.203.78.138:443

217.160.107.189:6601

77.220.64.150:5037

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/1096-4-0x0000000074EB0000-0x0000000074EDC000-memory.dmp	dridex_ldr
behavioral1/memory/1096-6-0x0000000074EB0000-0x0000000074ECF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1096 rundll32.exe
7 1096 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
4	1096	rundll32.exe
7	1096	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 296 wrote to memory of 1096	296	rundll32.exe	rundll32.exe
PID 296 wrote to memory of 1096	296	rundll32.exe	rundll32.exe
PID 296 wrote to memory of 1096	296	rundll32.exe	rundll32.exe
PID 296 wrote to memory of 1096	296	rundll32.exe	rundll32.exe
PID 296 wrote to memory of 1096	296	rundll32.exe	rundll32.exe
PID 296 wrote to memory of 1096	296	rundll32.exe	rundll32.exe
PID 296 wrote to memory of 1096	296	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d3f1272e9a4df7b1de123b9ed551860b00f5ace6d449b7f78c98ca5c7027d69.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:296

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d3f1272e9a4df7b1de123b9ed551860b00f5ace6d449b7f78c98ca5c7027d69.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1096

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/1096-2-0x0000000000000000-mapping.dmp

Download
memory/1096-3-0x0000000076381000-0x0000000076383000-memory.dmp

Filesize
8KB

Download
memory/1096-4-0x0000000074EB0000-0x0000000074EDC000-memory.dmp

Filesize
176KB

Download
memory/1096-5-0x0000000000110000-0x0000000000116000-memory.dmp

Filesize
24KB

Download
memory/1096-6-0x0000000074EB0000-0x0000000074ECF000-memory.dmp

Filesize
124KB

Download
memory/1376-7-0x000007FEF6460000-0x000007FEF66DA000-memory.dmp

Filesize
2.5MB

Download

Analysis

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