dridex | 3f9d1d301b0d6014e99bee8c9d5d74b3b150fd0be819c63cdb13e803503abe1f

Analysis

max time kernel
27s
max time network
11s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 15:42

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General

Target

3f9d1d301b0d6014e99bee8c9d5d74b3b150fd0be819c63cdb13e803503abe1f.dll
Size

161KB
MD5

1b71ddff8aa1fcd0273694f4b203387d
SHA1

154d929ff66ad255e168e2679e164876a251141c
SHA256

3f9d1d301b0d6014e99bee8c9d5d74b3b150fd0be819c63cdb13e803503abe1f
SHA512

ef1ca90261bc2775289b93ba7dd93a645dcd6edc84e0bbf33ecfac3a814e98346e33fe96c4c6664e407fe3b827b177492d87eae05a824182f2af8aecf92e29f1

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

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/1912-62-0x0000000074D10000-0x0000000074D3E000-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 1096 wrote to memory of 1912	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1912	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1912	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1912	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1912	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1912	1096	rundll32.exe	rundll32.exe
PID 1096 wrote to memory of 1912	1096	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f9d1d301b0d6014e99bee8c9d5d74b3b150fd0be819c63cdb13e803503abe1f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1096

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f9d1d301b0d6014e99bee8c9d5d74b3b150fd0be819c63cdb13e803503abe1f.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1912

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

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Downloads

memory/1912-60-0x0000000000000000-mapping.dmp

Download
memory/1912-61-0x0000000075201000-0x0000000075203000-memory.dmp

Filesize
8KB

Download
memory/1912-62-0x0000000074D10000-0x0000000074D3E000-memory.dmp

Filesize
184KB

Download
memory/1912-64-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download