dridex | f051d9f61ef1f401ae946ad290128df9772cd030fce4fe289037b650906c9ded

Analysis

max time kernel
137s
max time network
136s
platform
windows7_x64
resource
win7v20201028
submitted
18-11-2020 15:40

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General

Target

b9401270025b12972e01288735ef476b4162504c.dll
Size

539KB
MD5

6cac702b78ac3d40180a705044c7a5db
SHA1

559bd8a211b8b4c5c20cabb8400cf0c17b969c2c
SHA256

f051d9f61ef1f401ae946ad290128df9772cd030fce4fe289037b650906c9ded
SHA512

aa02292105fd7032486cce2ff315f85a98c9d0dbab9651e7284dd13581a37279d90a5bfe39d0e0c28c2164eae5fd7ad856b57dcd41ad2e40bbfd0417c6817362

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1364-1-0x00000000002B0000-0x00000000002ED000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 1364 rundll32.exe
6 1364 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
3	1364	rundll32.exe
6	1364	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1912 wrote to memory of 1364	1912	rundll32.exe	rundll32.exe
PID 1912 wrote to memory of 1364	1912	rundll32.exe	rundll32.exe
PID 1912 wrote to memory of 1364	1912	rundll32.exe	rundll32.exe
PID 1912 wrote to memory of 1364	1912	rundll32.exe	rundll32.exe
PID 1912 wrote to memory of 1364	1912	rundll32.exe	rundll32.exe
PID 1912 wrote to memory of 1364	1912	rundll32.exe	rundll32.exe
PID 1912 wrote to memory of 1364	1912	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9401270025b12972e01288735ef476b4162504c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1912

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9401270025b12972e01288735ef476b4162504c.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1364

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/1364-0-0x0000000000000000-mapping.dmp

Download
memory/1364-1-0x00000000002B0000-0x00000000002ED000-memory.dmp

Filesize
244KB

Download
memory/1564-2-0x000007FEF6080000-0x000007FEF62FA000-memory.dmp

Filesize
2.5MB

Download