dridex | ef74ea831d788c055bf7b124d77f5070da4e950cb86a922e3ac4008cfaa8e707

Analysis

max time kernel
51s
max time network
58s
platform
windows10_x64
resource
win10v20201028
submitted
03-04-2021 14:03

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General

Target

ef74ea831d788c055bf7b124d77f5070da4e950cb86a922e3ac4008cfaa8e707.dll
Size

196KB
MD5

130565d23dd71ba89e697c7ecc6725a4
SHA1

44a5b9bd927e8d6640b940dbeedc39dd0661147a
SHA256

ef74ea831d788c055bf7b124d77f5070da4e950cb86a922e3ac4008cfaa8e707
SHA512

88b603ce938c39516c8d3299173e3c78160aa17e3e4c3c330e08bc3392509078d7e049860885300134b0866a07d52020be3768cc711eab36e3f15d6dae4cba79

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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
behavioral1/memory/1216-3-0x0000000074220000-0x0000000074253000-memory.dmp	dridex_ldr
behavioral1/memory/1216-5-0x0000000074220000-0x000000007423F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

12 1216 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
12	1216	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 720 wrote to memory of 1216	720	rundll32.exe	rundll32.exe
PID 720 wrote to memory of 1216	720	rundll32.exe	rundll32.exe
PID 720 wrote to memory of 1216	720	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef74ea831d788c055bf7b124d77f5070da4e950cb86a922e3ac4008cfaa8e707.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:720

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef74ea831d788c055bf7b124d77f5070da4e950cb86a922e3ac4008cfaa8e707.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1216

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1216-2-0x0000000000000000-mapping.dmp

Download
memory/1216-3-0x0000000074220000-0x0000000074253000-memory.dmp

Filesize
204KB

Download
memory/1216-4-0x0000000003420000-0x0000000003426000-memory.dmp

Filesize
24KB

Download
memory/1216-5-0x0000000074220000-0x000000007423F000-memory.dmp

Filesize
124KB

Download