dridex | d77234374d79b24022c26ecdd16a684ae7e94efba502422d74852b0eddd4f1b4

Analysis

max time kernel
40s
max time network
42s
platform
windows7_x64
resource
win7v20201028
submitted
09-11-2020 19:42

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General

Target

96a307cc2ba191e4872d1ef65697753cb13641a0.dll
Size

632KB
MD5

bef6feb31ccd3364d883b306642cfaed
SHA1

96a307cc2ba191e4872d1ef65697753cb13641a0
SHA256

d77234374d79b24022c26ecdd16a684ae7e94efba502422d74852b0eddd4f1b4
SHA512

96900c685053e7251e673a22b3882e0d1b05f48e5e8c515a8d7b000c169db118b7d89a866fe363e44a60f57888899b32d1e6325b09a7bb3a519ce090b51dc943

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

178.128.83.136:443

138.122.143.41:8443

85.25.106.204:691

159.203.136.67:3308

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/1236-1-0x0000000074FA0000-0x0000000074FCB000-memory.dmp	dridex_ldr

Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

4 1236 rundll32.exe
6 1236 rundll32.exe
7 1236 rundll32.exe
8 1236 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	1236	rundll32.exe
6	1236	rundll32.exe
7	1236	rundll32.exe
8	1236	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 1848 wrote to memory of 1236	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1236	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1236	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1236	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1236	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1236	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1236	1848	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\96a307cc2ba191e4872d1ef65697753cb13641a0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1848

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\96a307cc2ba191e4872d1ef65697753cb13641a0.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1236

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/1236-0-0x0000000000000000-mapping.dmp

Download
memory/1236-1-0x0000000074FA0000-0x0000000074FCB000-memory.dmp

Filesize
172KB

Download
memory/1724-2-0x000007FEF6680000-0x000007FEF68FA000-memory.dmp

Filesize
2.5MB

Download