dridex | 8ed84dd8af7b239e60ca76852a684222b7e7c274362bff1913ef8dce0fe35cc5

Analysis

max time kernel
25s
max time network
135s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:07

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General

Target

8ed84dd8af7b239e60ca76852a684222b7e7c274362bff1913ef8dce0fe35cc5.dll
Size

188KB
MD5

b82c44203565b6caf466acac04d83fde
SHA1

ebd75a6d04c05789d7f5d54f0d742b7866c1e030
SHA256

8ed84dd8af7b239e60ca76852a684222b7e7c274362bff1913ef8dce0fe35cc5
SHA512

36502bf06073cae10fc2da2ee358b031deb84c9b37a5ec4af6498b80a1e81e372ccd01ceff9518069a1793cb744bcc74c044c57d3585a171cf96c351accb8436

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

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
behavioral2/memory/4672-3-0x0000000074210000-0x0000000074241000-memory.dmp	dridex_ldr
behavioral2/memory/4672-5-0x0000000074210000-0x000000007422F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

18 4672 rundll32.exe
20 4672 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
18	4672	rundll32.exe
20	4672	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4636 wrote to memory of 4672	4636	rundll32.exe	rundll32.exe
PID 4636 wrote to memory of 4672	4636	rundll32.exe	rundll32.exe
PID 4636 wrote to memory of 4672	4636	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ed84dd8af7b239e60ca76852a684222b7e7c274362bff1913ef8dce0fe35cc5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4636

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8ed84dd8af7b239e60ca76852a684222b7e7c274362bff1913ef8dce0fe35cc5.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4672

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4672-2-0x0000000000000000-mapping.dmp

Download
memory/4672-3-0x0000000074210000-0x0000000074241000-memory.dmp

Filesize
196KB

Download
memory/4672-4-0x0000000003060000-0x0000000003066000-memory.dmp

Filesize
24KB

Download
memory/4672-5-0x0000000074210000-0x000000007422F000-memory.dmp

Filesize
124KB

Download