dridex | 20ff3e23a2b122a1d875b341a6d08ec355fd2809f31d9840e1020c4fb55443a8

Analysis

max time kernel
147s
max time network
147s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:05

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General

Target
20ff3e23a2b122a1d875b341a6d08ec355fd2809f31d9840e1020c4fb55443a8.dll
Size 188KB
Sample210224-pc9qx27dls
SHA256 20ff3e23a2b122a1d875b341a6d08ec355fd2809f31d9840e1020c4fb55443a8
MD5 dfdf71e612bd1cbd2957d7b5f5d3da42
SHA1 38dbb895cddacdc1f146f28b4d98ea99f14f2f1e
SHA512 a9f0d7e203c1d5b9bb948db80d35bd8c52a145fccaa323d0fe222ae77c4e315bbab7dc5a4276cc0e5126f16ce9830419764b2386109a986e40dd4876811b2b95
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/1100-3-0x0000000073CA0000-0x0000000073CD1000-memory.dmp	dridex_ldr
behavioral2/memory/1100-5-0x0000000073CA0000-0x0000000073CBF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	1100	rundll32.exe
17	1100	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 3116 wrote to memory of 1100	3116	rundll32.exe	71
PID 3116 wrote to memory of 1100	3116	rundll32.exe	71
PID 3116 wrote to memory of 1100	3116	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\20ff3e23a2b122a1d875b341a6d08ec355fd2809f31d9840e1020c4fb55443a8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\20ff3e23a2b122a1d875b341a6d08ec355fd2809f31d9840e1020c4fb55443a8.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1100

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/1100-3-0x0000000073CA0000-0x0000000073CD1000-memory.dmp

Download

memory/1100-4-0x00000000009D0000-0x00000000009D6000-memory.dmp

Download

memory/1100-5-0x0000000073CA0000-0x0000000073CBF000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads