dridex | f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c

Analysis

max time kernel
148s
max time network
151s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:05

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General

Target

f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c.dll
Size

188KB
MD5

629b53ddabf28c5b67916ff5776c977c
SHA1

9e46b24d513d4c75d4e87a413075f776bf0c84c8
SHA256

f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c
SHA512

6787fdac970e4c2349013df410245c85a464006e57e47615a77935e95183ceeabb5dd5949de7a102bb2c81d430474518d9cce3d3244c45604d4cb1e99b816108

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/4832-3-0x0000000073E30000-0x0000000073E61000-memory.dmp	dridex_ldr
behavioral2/memory/4832-5-0x0000000073E30000-0x0000000073E4F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

14 4832 rundll32.exe
16 4832 rundll32.exe
18 4832 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
14	4832	rundll32.exe
16	4832	rundll32.exe
18	4832	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 4808 wrote to memory of 4832	4808	rundll32.exe	rundll32.exe
PID 4808 wrote to memory of 4832	4808	rundll32.exe	rundll32.exe
PID 4808 wrote to memory of 4832	4808	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4808

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f06f58c991c3027d4c5d3dc17bb944a6db160867b460e0baa408fc74df1c688c.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4832

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/4832-2-0x0000000000000000-mapping.dmp

Download
memory/4832-3-0x0000000073E30000-0x0000000073E61000-memory.dmp

Filesize
196KB

Download
memory/4832-4-0x0000000002A40000-0x0000000002A46000-memory.dmp

Filesize
24KB

Download
memory/4832-5-0x0000000073E30000-0x0000000073E4F000-memory.dmp

Filesize
124KB

Download