dridex | de39140ed6443ed440847750713bf78af2094bb59691eca90da85b3851a4ae2e

Analysis

max time kernel
31s
max time network
143s
platform
windows10_x64
resource
win10v20201028
submitted
24-02-2021 23:42

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General

Target

de39140ed6443ed440847750713bf78af2094bb59691eca90da85b3851a4ae2e.dll
Size

188KB
MD5

92e4f5d47587b06987ce2ffe57cd5195
SHA1

3faddd56423bad6ec1572add0ec04606613a70ef
SHA256

de39140ed6443ed440847750713bf78af2094bb59691eca90da85b3851a4ae2e
SHA512

831354704c1294e8a2a886c1924fee61b2a3ba6bf041a4225ece006e2bf352e5273899d3d4e64ad0e9f38d7772694d6db17ecc12fa372cbf7bef0d3a310f61ec

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

209.151.236.42:443

91.121.94.86:8172

5.189.144.136:6516

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/816-3-0x0000000074410000-0x0000000074441000-memory.dmp	dridex_ldr
behavioral2/memory/816-5-0x0000000074410000-0x000000007442F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

17 816 rundll32.exe
19 816 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
17	816	rundll32.exe
19	816	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 1400 wrote to memory of 816	1400	rundll32.exe	rundll32.exe
PID 1400 wrote to memory of 816	1400	rundll32.exe	rundll32.exe
PID 1400 wrote to memory of 816	1400	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\de39140ed6443ed440847750713bf78af2094bb59691eca90da85b3851a4ae2e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1400

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\de39140ed6443ed440847750713bf78af2094bb59691eca90da85b3851a4ae2e.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:816

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/816-2-0x0000000000000000-mapping.dmp

Download
memory/816-3-0x0000000074410000-0x0000000074441000-memory.dmp

Filesize
196KB

Download
memory/816-4-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

Filesize
24KB

Download
memory/816-5-0x0000000074410000-0x000000007442F000-memory.dmp

Filesize
124KB

Download