dridex | 2a3b44951f8e7d31396dd12f547480f5718727ae606e0ba3355e69bb0a98d14a

General

Target

2a3b44951f8e7d31396dd12f547480f5718727ae606e0ba3355e69bb0a98d14a.dll
Size

188KB
MD5

46351211153c18d2a8176c8f673cc3cd
SHA1

649e8eaf1fecceb7c696a2a27aca9eba19f18e78
SHA256

2a3b44951f8e7d31396dd12f547480f5718727ae606e0ba3355e69bb0a98d14a
SHA512

b2b9fe896555282f1f5c1a2c19c78aec3568f4b8fbdd64bf420ea9b3cc8e5fe53ddf8903e6d375c366b4a8e8d800741b7c0174c28f8518338629c5c577d9d73f

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

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/904-4-0x0000000074E60000-0x0000000074E91000-memory.dmp	dridex_ldr
behavioral1/memory/904-6-0x0000000074E60000-0x0000000074E7F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 904 rundll32.exe
7 904 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	904	rundll32.exe
7	904	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 1904 wrote to memory of 904	1904	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 904	1904	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 904	1904	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 904	1904	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 904	1904	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 904	1904	rundll32.exe	rundll32.exe
PID 1904 wrote to memory of 904	1904	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a3b44951f8e7d31396dd12f547480f5718727ae606e0ba3355e69bb0a98d14a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a3b44951f8e7d31396dd12f547480f5718727ae606e0ba3355e69bb0a98d14a.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:904

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/904-2-0x0000000000000000-mapping.dmp

Download
memory/904-3-0x00000000766F1000-0x00000000766F3000-memory.dmp

Filesize
8KB

Download
memory/904-4-0x0000000074E60000-0x0000000074E91000-memory.dmp

Filesize
196KB

Download
memory/904-5-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/904-6-0x0000000074E60000-0x0000000074E7F000-memory.dmp

Filesize
124KB

Download
memory/1660-7-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp

Filesize
2.5MB

Download

Analysis

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