dridex | a43344a9dab75be89442f9c105fabedc7179d7af32cc9b5f83ae656f04761cb9

Analysis

max time kernel
135s
max time network
134s
platform
windows7_x64
resource
win7v20201028
submitted
25-11-2020 17:19

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General

Target

d3b2e2e305010b207712b4faaa9e8436.dll
Size

539KB
MD5

d3b2e2e305010b207712b4faaa9e8436
SHA1

ea15c4fb0669c3d53f5fa21d8b55110e70671bb1
SHA256

a43344a9dab75be89442f9c105fabedc7179d7af32cc9b5f83ae656f04761cb9
SHA512

bf7248eae65300b4d7bfbe333436a55491e5a9c41236f2ac61bc9bb1aaaaa54a6b6a85b4f8ee7c8a55b2fbbd59a1d6d8eb8fab864b69ec5f3d1ae1b858ef66f4

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

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/1632-1-0x0000000000590000-0x00000000005CD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1632 rundll32.exe
7 1632 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
4	1632	rundll32.exe
7	1632	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2028 wrote to memory of 1632	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1632	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1632	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1632	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1632	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1632	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1632	2028	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3b2e2e305010b207712b4faaa9e8436.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3b2e2e305010b207712b4faaa9e8436.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1632

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/1632-0-0x0000000000000000-mapping.dmp

Download
memory/1632-1-0x0000000000590000-0x00000000005CD000-memory.dmp

Filesize
244KB

Download
memory/1640-2-0x000007FEF6510000-0x000007FEF678A000-memory.dmp

Filesize
2.5MB

Download