dridex | f7d9be606d529b1ff65c263154474c68703204a56e21f91f26c8e4e12fd4cf55

Analysis

max time kernel
62s
max time network
111s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:05

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General

Target
f7d9be606d529b1ff65c263154474c68703204a56e21f91f26c8e4e12fd4cf55.dll
Size 188KB
Sample210224-1bxnffnryx
SHA256 f7d9be606d529b1ff65c263154474c68703204a56e21f91f26c8e4e12fd4cf55
MD5 4c4650bae1c7cdcd220f137f38658e62
SHA1 cec62e7d5c1caaf2f024f20c2aa059abfcd1e5ec
SHA512 05ce2bc75f5563fd93f60360c9d075a928bd694897a6db35b29c042a0bf0788706f353d58838cecf57ecc4eb6cab3e71774c2359995fd225d6886f1aa28a5fe6
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516

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

resource	yara_rule
behavioral2/memory/4708-3-0x0000000075A50000-0x0000000075A81000-memory.dmp	dridex_ldr
behavioral2/memory/4708-5-0x0000000075A50000-0x0000000075A6F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
22	4708	rundll32.exe
24	4708	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

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 4708	4696	rundll32.exe	23
PID 4696 wrote to memory of 4708	4696	rundll32.exe	23
PID 4696 wrote to memory of 4708	4696	rundll32.exe	23

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7d9be606d529b1ff65c263154474c68703204a56e21f91f26c8e4e12fd4cf55.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7d9be606d529b1ff65c263154474c68703204a56e21f91f26c8e4e12fd4cf55.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4708

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

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Downloads

memory/4708-3-0x0000000075A50000-0x0000000075A81000-memory.dmp

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memory/4708-4-0x0000000003470000-0x0000000003476000-memory.dmp

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memory/4708-5-0x0000000075A50000-0x0000000075A6F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads