dridex | 3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62

Analysis

max time kernel
30s
max time network
141s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:31

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General

Target
3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62.dll
Size 188KB
Sample210224-4tml7ng3r2
SHA256 3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62
MD5 c4e1048c5b4525aaf02166d50e0ffbfa
SHA1 977d47ff895917dd896391064da76c1d8a96486d
SHA512 74b1ff0af063e197376a23e31c23f16791ae006a13c2aa154e4498966d9c610a2a7facc1d611fe6abf2c157ebd7f023befba9331cd70a26c1a4e4e1ead4c535a
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/8-3-0x0000000073DA0000-0x0000000073DD1000-memory.dmp	dridex_ldr
behavioral2/memory/8-5-0x0000000073DA0000-0x0000000073DBF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
20	8	rundll32.exe
22	8	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 2300 wrote to memory of 8	2300	rundll32.exe	71
PID 2300 wrote to memory of 8	2300	rundll32.exe	71
PID 2300 wrote to memory of 8	2300	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a93fb6a1bc66210f59bbf8530adf810a662cfbe23ce3a7f1b9d273a90329a62.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:8

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/8-3-0x0000000073DA0000-0x0000000073DD1000-memory.dmp

Download

memory/8-4-0x00000000030A0000-0x00000000030A6000-memory.dmp

Download

memory/8-5-0x0000000073DA0000-0x0000000073DBF000-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