dridex | 7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe

Analysis

max time kernel
34s
max time network
144s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:06

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General

Target

7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe.dll
Size

188KB
MD5

755e5c0db77bf093c09b57f546a61ee3
SHA1

e5e2049e95aeb959e53eddb9716a64dfb3a5c380
SHA256

7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe
SHA512

f0b86c4d09c4e62179b5ced1c78ab30034f774c7a0cd1793d2d9077d31e35678f299aa2574d6c450e734616a5710c43083bb950b8b4ce2dc5295a96cbf1da657

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/1868-3-0x00000000738C0000-0x00000000738F1000-memory.dmp	dridex_ldr
behavioral2/memory/1868-5-0x00000000738C0000-0x00000000738DF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

22 1868 rundll32.exe
24 1868 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
22	1868	rundll32.exe
24	1868	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 880 wrote to memory of 1868	880	rundll32.exe	rundll32.exe
PID 880 wrote to memory of 1868	880	rundll32.exe	rundll32.exe
PID 880 wrote to memory of 1868	880	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:880

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e330e23339f98de5d23dff905e1a702e2ddbde2a966b629b81afee798b2bafe.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1868

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1868-2-0x0000000000000000-mapping.dmp

Download
memory/1868-3-0x00000000738C0000-0x00000000738F1000-memory.dmp

Filesize
196KB

Download
memory/1868-4-0x0000000002FF0000-0x0000000002FF6000-memory.dmp

Filesize
24KB

Download
memory/1868-5-0x00000000738C0000-0x00000000738DF000-memory.dmp

Filesize
124KB

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