dridex | b5741a50b62b8c6ba4a8aed0dbe9937d7a2d31e011cecfd42c4a9a5a3444e653

Analysis

max time kernel
25s
max time network
120s
platform
windows10_x64
resource
win10v20210408
submitted
24/06/2021, 14:21

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General

Target
b5741a50b62b8c6ba4a8aed0dbe9937d7a2d31e011cecfd42c4a9a5a3444e653.dll
Size 162KB
Sample210624-2rvj83rssx
SHA256 b5741a50b62b8c6ba4a8aed0dbe9937d7a2d31e011cecfd42c4a9a5a3444e653
MD5 23a28f4adb3a5f4a97106a0e12d92ab1
SHA1 210895b078a0a15d7030abae877a954cbcd7dd07
SHA512 2aa304b0a2b5c6306f68c0e75235c8c26819f3ef0905d978887a0cb4d4986d8b39e2d018e3e928147605989fc3ac02d420988f836f5dea68231eb8b61ac7936e
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
behavioral1/memory/1444-115-0x0000000074440000-0x000000007446E000-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 752 wrote to memory of 1444	752	rundll32.exe	71
PID 752 wrote to memory of 1444	752	rundll32.exe	71
PID 752 wrote to memory of 1444	752	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5741a50b62b8c6ba4a8aed0dbe9937d7a2d31e011cecfd42c4a9a5a3444e653.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b5741a50b62b8c6ba4a8aed0dbe9937d7a2d31e011cecfd42c4a9a5a3444e653.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:1444

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/1444-115-0x0000000074440000-0x000000007446E000-memory.dmp

Download

memory/1444-117-0x0000000000F30000-0x000000000107A000-memory.dmp