dridex | b4b2a4ad0a5541a710257fcb07706dcb4cf928f5f88fb1cefab2fb8a77c0bf25

Analysis

max time kernel
26s
max time network
10s
platform
windows7_x64
resource
win7v20210410
submitted
21-04-2021 16:03

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General

Target

b4b2a4ad0a5541a710257fcb07706dcb4cf928f5f88fb1cefab2fb8a77c0bf25.dll
Size

162KB
MD5

cfe1234e886bbfe93a548a78617781cb
SHA1

761982ef3e8b7a8a25722108376266b32bca5ed4
SHA256

b4b2a4ad0a5541a710257fcb07706dcb4cf928f5f88fb1cefab2fb8a77c0bf25
SHA512

a08fd52f6b194bc0c9c966e91431aad6f770b35729c9a5dd0e7dba3e2849091f225938322fd3edcaa1d91f945726928ae7da8a12fecdc67e74e86d68fe0d3efe

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/1392-61-0x0000000075220000-0x000000007524E000-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 772 wrote to memory of 1392	772	rundll32.exe	rundll32.exe
PID 772 wrote to memory of 1392	772	rundll32.exe	rundll32.exe
PID 772 wrote to memory of 1392	772	rundll32.exe	rundll32.exe
PID 772 wrote to memory of 1392	772	rundll32.exe	rundll32.exe
PID 772 wrote to memory of 1392	772	rundll32.exe	rundll32.exe
PID 772 wrote to memory of 1392	772	rundll32.exe	rundll32.exe
PID 772 wrote to memory of 1392	772	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4b2a4ad0a5541a710257fcb07706dcb4cf928f5f88fb1cefab2fb8a77c0bf25.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:772

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4b2a4ad0a5541a710257fcb07706dcb4cf928f5f88fb1cefab2fb8a77c0bf25.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1392

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/1392-60-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

Filesize
8KB

Download
memory/1392-59-0x0000000000000000-mapping.dmp

Download
memory/1392-61-0x0000000075220000-0x000000007524E000-memory.dmp

Filesize
184KB

Download
memory/1392-63-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download