dridex | 55c3a511b341a2e9e29738f6661a99972c3abe72bc9e1f356e61db63280366c0

Analysis

max time kernel
22s
max time network
10s
platform
windows7_x64
resource
win7v20210410
submitted
21-04-2021 14:19

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General

Target

55c3a511b341a2e9e29738f6661a99972c3abe72bc9e1f356e61db63280366c0.dll
Size

162KB
MD5

4e67e4c439fecb306d42d6830e57b4e7
SHA1

c923008ff258c0c5487aac074260ca05e9d30c80
SHA256

55c3a511b341a2e9e29738f6661a99972c3abe72bc9e1f356e61db63280366c0
SHA512

2681be4ae5d39e9552e58a3c8d34c0a99921a86eb4ed4386a1ea6b250bef4cd1f79a553c6537e57373bf78d06ff71321bf8aac999565631a3df2726deda722c1

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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/844-62-0x00000000754B0000-0x00000000754DE000-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 2004 wrote to memory of 844	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 844	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 844	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 844	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 844	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 844	2004	rundll32.exe	rundll32.exe
PID 2004 wrote to memory of 844	2004	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55c3a511b341a2e9e29738f6661a99972c3abe72bc9e1f356e61db63280366c0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2004

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55c3a511b341a2e9e29738f6661a99972c3abe72bc9e1f356e61db63280366c0.dll,#1
2⤵
- Checks whether UAC is enabled
PID:844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/844-60-0x0000000000000000-mapping.dmp

Download
memory/844-61-0x00000000765F1000-0x00000000765F3000-memory.dmp

Filesize
8KB

Download
memory/844-62-0x00000000754B0000-0x00000000754DE000-memory.dmp

Filesize
184KB

Download
memory/844-64-0x00000000001A0000-0x00000000001A6000-memory.dmp

Filesize
24KB

Download