dridex | 21d937a10c43f18bd1929e2778e32219d2918f56bae4ab8ef7c7560f3ca73ef7

Analysis

max time kernel
27s
max time network
151s
platform
windows10_x64
resource
win10v20210408
submitted
21-06-2021 11:39

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General

Target

21d937a10c43f18bd1929e2778e32219d2918f56bae4ab8ef7c7560f3ca73ef7.dll
Size

160KB
MD5

c989d2b786016fe1f69bc62c20c40810
SHA1

8e4b7537086a6278620f7af4bdf4a81345bc593c
SHA256

21d937a10c43f18bd1929e2778e32219d2918f56bae4ab8ef7c7560f3ca73ef7
SHA512

5587ece99175d1658911710ecf533eba69cb59bca0fff10fcc2d9daacacad38c5c19015be115c6b8f5f8cf1b0dd57fc52feb38d2de2fb23c7a68c241fd1cdbda

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

94.247.168.64:443

159.203.93.122:8172

50.116.27.97:2303

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/3552-115-0x0000000073990000-0x00000000739BE000-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 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4060 wrote to memory of 3552	4060	rundll32.exe	rundll32.exe
PID 4060 wrote to memory of 3552	4060	rundll32.exe	rundll32.exe
PID 4060 wrote to memory of 3552	4060	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\21d937a10c43f18bd1929e2778e32219d2918f56bae4ab8ef7c7560f3ca73ef7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\21d937a10c43f18bd1929e2778e32219d2918f56bae4ab8ef7c7560f3ca73ef7.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:3552

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/3552-114-0x0000000000000000-mapping.dmp

Download
memory/3552-115-0x0000000073990000-0x00000000739BE000-memory.dmp

Filesize
184KB

Download
memory/3552-117-0x0000000000700000-0x00000000007AE000-memory.dmp

Filesize
696KB

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