dridex | 4a33e188f7dfb6d2ea1fc9fc553511e58a3f7aa8009465abf1fb76cd385547c1

Analysis

max time kernel
26s
max time network
8s
platform
windows7_x64
resource
win7v20210410
submitted
21-04-2021 16:04

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General

Target

4a33e188f7dfb6d2ea1fc9fc553511e58a3f7aa8009465abf1fb76cd385547c1.dll
Size

158KB
MD5

1ad715e01eb90d9df9f99e2b1b2170c3
SHA1

979ee98ebf3448b35d09de98d1f244fabdbb9d0e
SHA256

4a33e188f7dfb6d2ea1fc9fc553511e58a3f7aa8009465abf1fb76cd385547c1
SHA512

dd102a3a2af510e6d770ddaecebbb03befa492adacdef16f901941ddb3ea37a80690fa0a55c1f5242ab083ef40dbe0a840d55fac2ac1bb5bd8b22d02a50a4b4d

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

8.210.53.215:443

72.249.22.245:2303

188.40.137.206:8172

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/2020-62-0x00000000752C0000-0x00000000752ED000-memory.dmp	dridex_ldr

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

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 1200 wrote to memory of 2020	1200	rundll32.exe	rundll32.exe
PID 1200 wrote to memory of 2020	1200	rundll32.exe	rundll32.exe
PID 1200 wrote to memory of 2020	1200	rundll32.exe	rundll32.exe
PID 1200 wrote to memory of 2020	1200	rundll32.exe	rundll32.exe
PID 1200 wrote to memory of 2020	1200	rundll32.exe	rundll32.exe
PID 1200 wrote to memory of 2020	1200	rundll32.exe	rundll32.exe
PID 1200 wrote to memory of 2020	1200	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a33e188f7dfb6d2ea1fc9fc553511e58a3f7aa8009465abf1fb76cd385547c1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1200

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a33e188f7dfb6d2ea1fc9fc553511e58a3f7aa8009465abf1fb76cd385547c1.dll,#1
2⤵
- Checks whether UAC is enabled
PID:2020

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2020-60-0x0000000000000000-mapping.dmp

Download
memory/2020-61-0x00000000768B1000-0x00000000768B3000-memory.dmp

Filesize
8KB

Download
memory/2020-62-0x00000000752C0000-0x00000000752ED000-memory.dmp

Filesize
180KB

Download
memory/2020-64-0x0000000000160000-0x0000000000166000-memory.dmp

Filesize
24KB

Download