dridex | 61253883f2cbdebcdc0cd51556d98435a5966b1ecb02a3c52a1f083a466157d8

Analysis

max time kernel
139s
max time network
200s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
11-06-2022 16:48

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General

Target

mfgoslt.dll
Size

373KB
MD5

7a70daa887ac97836e0d605a4fad7014
SHA1

22dd2a1c409b2068ad0091d5e339f58345f829e1
SHA256

61253883f2cbdebcdc0cd51556d98435a5966b1ecb02a3c52a1f083a466157d8
SHA512

d58b682d466c9de3e28bb79ac56146c76bb2bd31505e579676480d9772f53ab00ceebd8acce2073ec27134960cddbdbd074b7d0a14a1aabfae0ae6abe3f2593f

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

210.65.244.179:443

37.247.35.130:6601

103.18.108.116:6601

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

39 5012 rundll32.exe
41 5012 rundll32.exe
45 5012 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
39	5012	rundll32.exe
41	5012	rundll32.exe
45	5012	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 3000 wrote to memory of 5012	3000	rundll32.exe	rundll32.exe
PID 3000 wrote to memory of 5012	3000	rundll32.exe	rundll32.exe
PID 3000 wrote to memory of 5012	3000	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\mfgoslt.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3000

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\mfgoslt.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:5012

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

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Downloads

memory/5012-130-0x0000000000000000-mapping.dmp

Download
memory/5012-132-0x00000000750A0000-0x000000007515C000-memory.dmp

Filesize
752KB

Download
memory/5012-131-0x00000000750A0000-0x00000000750DD000-memory.dmp

Filesize
244KB

Download
memory/5012-134-0x00000000750A0000-0x000000007515C000-memory.dmp

Filesize
752KB

Download