dridex | 6cd9cad16dc13c962858b01f7c70877861ffb1b89709de238d04b0e50265994c

Analysis

max time kernel
30s
max time network
142s
platform
windows10_x64
resource
win10v20210408
submitted
19-04-2021 16:04

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General

Target

6cd9cad16dc13c962858b01f7c70877861ffb1b89709de238d04b0e50265994c.dll
Size

639KB
MD5

1aeafb870a6d24b7fa6d12d50aea462e
SHA1

2bd62d1a11c75d92fc9fbf6624dc7fb430a3728f
SHA256

6cd9cad16dc13c962858b01f7c70877861ffb1b89709de238d04b0e50265994c
SHA512

e71aadbde572530c53064722c4502f95ff75c80638047005219db85d714d456908ab280971c3ff1674dba655be3afcf07bff5c213d7bba2ed74a1dc624192ab4

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/1512-116-0x0000000073F10000-0x0000000073FD3000-memory.dmp	dridex_ldr
behavioral2/memory/1512-115-0x0000000073F10000-0x0000000073F4D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

17 1512 rundll32.exe
19 1512 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
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

flow	pid	process
17	1512	rundll32.exe
19	1512	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 668 wrote to memory of 1512	668	rundll32.exe	rundll32.exe
PID 668 wrote to memory of 1512	668	rundll32.exe	rundll32.exe
PID 668 wrote to memory of 1512	668	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6cd9cad16dc13c962858b01f7c70877861ffb1b89709de238d04b0e50265994c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:668
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6cd9cad16dc13c962858b01f7c70877861ffb1b89709de238d04b0e50265994c.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1512

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1512-114-0x0000000000000000-mapping.dmp

Download
memory/1512-116-0x0000000073F10000-0x0000000073FD3000-memory.dmp

Filesize
780KB

Download
memory/1512-115-0x0000000073F10000-0x0000000073F4D000-memory.dmp

Filesize
244KB

Download
memory/1512-118-0x0000000002E00000-0x0000000002E01000-memory.dmp

Filesize
4KB

Download
memory/1512-119-0x0000000002BF0000-0x0000000002BF1000-memory.dmp

Filesize
4KB

Download