dridex | 7771ced697b5b7e06699efe7e7d1423a89157c0a4e0713c24c68c0e6ec8b1eba

Analysis

max time kernel
129s
max time network
148s
platform
windows10_x64
resource
win10-en-20210920
submitted
14-10-2021 07:04

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General

Target

7771ced697b5b7e06699efe7e7d1423a89157c0a4e0713c24c68c0e6ec8b1eba.dll
Size

608KB
MD5

e19a53f849c61ed1f4fd3650cd28f809
SHA1

5923a4ac13789e5ee87f972b7d711d2e8cb1b8ea
SHA256

7771ced697b5b7e06699efe7e7d1423a89157c0a4e0713c24c68c0e6ec8b1eba
SHA512

41213fc1a1a01e1c85eb84bf592f920bbb831e373db687b8f32ca6b83f3f332f603c714b6d71e63824eebc2420b222febe01b68895cc774620dae61995a59d7d

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

174.128.245.202:443

51.83.3.52:13786

69.64.50.41:6602

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 2 IoCs

Processes:

rundll32.exe

flow pid process

25 3044 rundll32.exe
26 3044 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
25	3044	rundll32.exe
26	3044	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 3608 wrote to memory of 3044	3608	rundll32.exe	rundll32.exe
PID 3608 wrote to memory of 3044	3608	rundll32.exe	rundll32.exe
PID 3608 wrote to memory of 3044	3608	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7771ced697b5b7e06699efe7e7d1423a89157c0a4e0713c24c68c0e6ec8b1eba.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3608

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7771ced697b5b7e06699efe7e7d1423a89157c0a4e0713c24c68c0e6ec8b1eba.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3044

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/3044-115-0x0000000000000000-mapping.dmp

Download
memory/3044-118-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download
memory/3044-117-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/3044-120-0x0000000003250000-0x0000000003251000-memory.dmp

Filesize
4KB

Download
memory/3044-121-0x0000000003250000-0x0000000003251000-memory.dmp

Filesize
4KB

Download
memory/3044-122-0x0000000003250000-0x0000000003251000-memory.dmp

Filesize
4KB

Download
memory/3044-130-0x0000000003230000-0x0000000003231000-memory.dmp

Filesize
4KB

Download
memory/3044-116-0x0000000000400000-0x0000000000534000-memory.dmp

Filesize
1.2MB

Download