dridex | 5e05c4e375a9d930b9b6cb5d1a00d4e032ef1fae7573dbd4bb4a798b351e3b02

Analysis

max time kernel
62s
max time network
134s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 09:04

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General

Target

5e05c4e375a9d930b9b6cb5d1a00d4e032ef1fae7573dbd4bb4a798b351e3b02.dll
Size

196KB
MD5

f033bcd9080caa7841c8949f1cae59c1
SHA1

e521741442ec2513203a1f1744484d36ac0888f8
SHA256

5e05c4e375a9d930b9b6cb5d1a00d4e032ef1fae7573dbd4bb4a798b351e3b02
SHA512

ccc3e0ac1ea2097030d9d70de8719391e4ebfd9e8902898a41a12f0cbf2a1c35f55204c6ca5b521ae2615644d6abfc4e50bc282241c4afff4870383f9fc790e9

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
behavioral2/memory/4696-3-0x0000000075A50000-0x0000000075A83000-memory.dmp	dridex_ldr
behavioral2/memory/4696-5-0x0000000075A50000-0x0000000075A6F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

20 4696 rundll32.exe
22 4696 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
20	4696	rundll32.exe
22	4696	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 4680 wrote to memory of 4696	4680	rundll32.exe	rundll32.exe
PID 4680 wrote to memory of 4696	4680	rundll32.exe	rundll32.exe
PID 4680 wrote to memory of 4696	4680	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5e05c4e375a9d930b9b6cb5d1a00d4e032ef1fae7573dbd4bb4a798b351e3b02.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4680
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5e05c4e375a9d930b9b6cb5d1a00d4e032ef1fae7573dbd4bb4a798b351e3b02.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4696

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/4696-2-0x0000000000000000-mapping.dmp

Download
memory/4696-3-0x0000000075A50000-0x0000000075A83000-memory.dmp

Filesize
204KB

Download
memory/4696-4-0x0000000002CA0000-0x0000000002CA6000-memory.dmp

Filesize
24KB

Download
memory/4696-5-0x0000000075A50000-0x0000000075A6F000-memory.dmp

Filesize
124KB

Download