dridex | 8b9746deefc3d8356c089c3180cc9e2429f1b48afe3c80213e9c99e97d0ccfca

Analysis

max time kernel
26s
max time network
110s
platform
windows10_x64
resource
win10v20210410
submitted
03/05/2021, 09:03

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General

Target
a7975ffc_by_Libranalysis.dll
Size 162KB
Sample210503-yz3cwxvxae
SHA256 8b9746deefc3d8356c089c3180cc9e2429f1b48afe3c80213e9c99e97d0ccfca
MD5 a7975ffc8e26e5f1dad61257c3c82da7
SHA1 7aa5622cfb71f0b34acd480da15d440bec089879
SHA512 9f8f1eb861a2968f9634d6d0e800e0b853f16d31ca4ced9567a12992fc091fbdee900c017bb23b695c392adbbff6f2fa3a7f885a3cbbadc9ee6f174516032291
MD5 SHA1 SHA512

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

resource	yara_rule
behavioral2/memory/3424-115-0x0000000073B70000-0x0000000073B9E000-memory.dmp	dridex_ldr

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3904 wrote to memory of 3424	3904	rundll32.exe	44
PID 3904 wrote to memory of 3424	3904	rundll32.exe	44
PID 3904 wrote to memory of 3424	3904	rundll32.exe	44

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a7975ffc_by_Libranalysis.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3904
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a7975ffc_by_Libranalysis.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:3424

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/3424-115-0x0000000073B70000-0x0000000073B9E000-memory.dmp

Download

memory/3424-117-0x0000000000800000-0x00000000008AE000-memory.dmp