dridex | c8232e0096f30c5a0f81133be1b90761395de4d21dd8d1626bb9181c82f811d7

Analysis

max time kernel
30s
max time network
143s
platform
windows10_x64
resource
win10v20210408
submitted
19-04-2021 15:50

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General

Target

c8232e0096f30c5a0f81133be1b90761395de4d21dd8d1626bb9181c82f811d7.dll
Size

639KB
MD5

0e4ae2e789c8ad41e1d77de7afe3c5c3
SHA1

f01a3c9681fb27d4d1582ee65a174e1b7898593b
SHA256

c8232e0096f30c5a0f81133be1b90761395de4d21dd8d1626bb9181c82f811d7
SHA512

a3a7766d4d4f7fb268d20799701171d969fd219d264eb64dbee50744d1716e751e224c32e10b40ce23d5c8e2d728c4c094413f7341ca928ea657f33bac9a45a5

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

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/1204-116-0x00000000740C0000-0x0000000074183000-memory.dmp	dridex_ldr
behavioral2/memory/1204-115-0x00000000740C0000-0x00000000740FD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

18 1204 rundll32.exe
20 1204 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	1204	rundll32.exe
20	1204	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 1108 wrote to memory of 1204	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1204	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1204	1108	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8232e0096f30c5a0f81133be1b90761395de4d21dd8d1626bb9181c82f811d7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8232e0096f30c5a0f81133be1b90761395de4d21dd8d1626bb9181c82f811d7.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1204

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/1204-114-0x0000000000000000-mapping.dmp

Download
memory/1204-116-0x00000000740C0000-0x0000000074183000-memory.dmp

Filesize
780KB

Download
memory/1204-115-0x00000000740C0000-0x00000000740FD000-memory.dmp

Filesize
244KB

Download
memory/1204-179-0x0000000003190000-0x0000000003191000-memory.dmp

Filesize
4KB

Download