dridex | 9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25

Analysis

max time kernel
121s
max time network
122s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 12:06

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General

Target

9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25.dll
Size

196KB
MD5

a2d475831fa6d01215536a2e33ff8c83
SHA1

de017ff0f75ea4c84d28adb5afd91675f9c26062
SHA256

9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25
SHA512

39a1b6be983e3477fc33d1e8d37f7aee95387077a7ac1861b8b7dd55eb6e4839bd8b6390490052e0571e0582e913b6b60e28bdfa3592bfe4f0a163811b565725

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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/4892-3-0x0000000073890000-0x00000000738C3000-memory.dmp	dridex_ldr
behavioral2/memory/4892-5-0x0000000073890000-0x00000000738AF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

13 4892 rundll32.exe
15 4892 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
13	4892	rundll32.exe
15	4892	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 4692 wrote to memory of 4892	4692	rundll32.exe	rundll32.exe
PID 4692 wrote to memory of 4892	4692	rundll32.exe	rundll32.exe
PID 4692 wrote to memory of 4892	4692	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4692

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4892

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/4892-2-0x0000000000000000-mapping.dmp

Download
memory/4892-3-0x0000000073890000-0x00000000738C3000-memory.dmp

Filesize
204KB

Download
memory/4892-4-0x0000000003260000-0x0000000003266000-memory.dmp

Filesize
24KB

Download
memory/4892-5-0x0000000073890000-0x00000000738AF000-memory.dmp

Filesize
124KB

Download