dridex | a5e2d29f8f64f5e22ed3057945aca32aa507e38fc7a25ca497fe0d1a34f3caa0

General

Target

a5e2d29f8f64f5e22ed3057945aca32aa507e38fc7a25ca497fe0d1a34f3caa0.dll
Size

188KB
MD5

9facd780bc8ac53958e8ceecb0805cf4
SHA1

7050f7660afa9496139010fcd556632c9c1af216
SHA256

a5e2d29f8f64f5e22ed3057945aca32aa507e38fc7a25ca497fe0d1a34f3caa0
SHA512

a2884d523dd36662a094c7db91b33994c4adaa6cc166259f632fed218cc6a885fd05b801ad5afb4567716e3247c87f3f6c09b1d63931b168632433703f2dd6b6

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/2016-4-0x00000000746D0000-0x0000000074701000-memory.dmp	dridex_ldr
behavioral1/memory/2016-6-0x00000000746D0000-0x00000000746EF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 2016 rundll32.exe
8 2016 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	2016	rundll32.exe
8	2016	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 1668 wrote to memory of 2016	1668	rundll32.exe	rundll32.exe
PID 1668 wrote to memory of 2016	1668	rundll32.exe	rundll32.exe
PID 1668 wrote to memory of 2016	1668	rundll32.exe	rundll32.exe
PID 1668 wrote to memory of 2016	1668	rundll32.exe	rundll32.exe
PID 1668 wrote to memory of 2016	1668	rundll32.exe	rundll32.exe
PID 1668 wrote to memory of 2016	1668	rundll32.exe	rundll32.exe
PID 1668 wrote to memory of 2016	1668	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5e2d29f8f64f5e22ed3057945aca32aa507e38fc7a25ca497fe0d1a34f3caa0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5e2d29f8f64f5e22ed3057945aca32aa507e38fc7a25ca497fe0d1a34f3caa0.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:2016

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/1700-7-0x000007FEF7080000-0x000007FEF72FA000-memory.dmp

Filesize
2.5MB

Download
memory/2016-2-0x0000000000000000-mapping.dmp

Download
memory/2016-3-0x0000000074B31000-0x0000000074B33000-memory.dmp

Filesize
8KB

Download
memory/2016-4-0x00000000746D0000-0x0000000074701000-memory.dmp

Filesize
196KB

Download
memory/2016-5-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/2016-6-0x00000000746D0000-0x00000000746EF000-memory.dmp

Filesize
124KB

Download

Analysis

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