dridex | 139987d986104e49f31b7979bbb259fc437f4e40478161020d67b75ccd46368f

Analysis

max time kernel
28s
max time network
10s
platform
windows7_x64
resource
win7v20210410
submitted
21-04-2021 18:43

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General

Target

139987d986104e49f31b7979bbb259fc437f4e40478161020d67b75ccd46368f.dll
Size

157KB
MD5

4a16a0f47a3c5fffa8e06fac6781e005
SHA1

49a88eeb0498b35fcff7657be3e9e22e0dd7364d
SHA256

139987d986104e49f31b7979bbb259fc437f4e40478161020d67b75ccd46368f
SHA512

9a21d270948f105fcdf10ba02ebb517836a744623406b6ed711ebee1f64ca6e468f288274f5c4bcc580978d2858fd13dd64a239301514b180f3ec04db92ea5e0

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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/1100-62-0x0000000075220000-0x000000007524D000-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 484 wrote to memory of 1100	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1100	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1100	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1100	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1100	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1100	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1100	484	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\139987d986104e49f31b7979bbb259fc437f4e40478161020d67b75ccd46368f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:484
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\139987d986104e49f31b7979bbb259fc437f4e40478161020d67b75ccd46368f.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:1100

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/1100-60-0x0000000000000000-mapping.dmp

Download
memory/1100-61-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

Filesize
8KB

Download
memory/1100-62-0x0000000075220000-0x000000007524D000-memory.dmp

Filesize
180KB

Download
memory/1100-64-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download