dridex | 31b3e5c03f52e098c29af1f1dbb700115b5f74bc8b7255f81617cc662d2f1a08

Analysis

max time kernel
26s
max time network
151s
platform
windows10_x64
resource
win10v20210408
submitted
28-06-2021 21:40

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General

Target

31b3e5c03f52e098c29af1f1dbb700115b5f74bc8b7255f81617cc662d2f1a08.dll
Size

160KB
MD5

8a370539d4337108a97aa5b28de273c1
SHA1

4ce56bdec22a567ea3522e29e3a864902f709000
SHA256

31b3e5c03f52e098c29af1f1dbb700115b5f74bc8b7255f81617cc662d2f1a08
SHA512

40d3d12b6540fcde524001fc5fe37cd2d0941cc9e312e440037b65d70dac89e6247bb80ba9d89e732d11c5d8bec18fa9fca0c5b6677940c55abfb5d63979f459

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/3984-115-0x0000000073620000-0x000000007364E000-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 504 wrote to memory of 3984	504	rundll32.exe	rundll32.exe
PID 504 wrote to memory of 3984	504	rundll32.exe	rundll32.exe
PID 504 wrote to memory of 3984	504	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\31b3e5c03f52e098c29af1f1dbb700115b5f74bc8b7255f81617cc662d2f1a08.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:504
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\31b3e5c03f52e098c29af1f1dbb700115b5f74bc8b7255f81617cc662d2f1a08.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:3984

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/3984-114-0x0000000000000000-mapping.dmp

Download
memory/3984-115-0x0000000073620000-0x000000007364E000-memory.dmp

Filesize
184KB

Download
memory/3984-117-0x0000000000F10000-0x0000000000F16000-memory.dmp

Filesize
24KB

Download