dridex | 2a2d3e1bee9006855826c4a62ee664fd9d2f0b5f0bfc1c8720425596ea09e3e1

Analysis

max time kernel
148s
max time network
150s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:32

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General

Target
2a2d3e1bee9006855826c4a62ee664fd9d2f0b5f0bfc1c8720425596ea09e3e1.dll
Size 188KB
Sample210224-ys2mrjc6js
SHA256 2a2d3e1bee9006855826c4a62ee664fd9d2f0b5f0bfc1c8720425596ea09e3e1
MD5 f53a71a487a51067b6d92c3d67293a2f
SHA1 82984935d526cd990af122ea431b7cc83c98d63e
SHA512 4b4829dad6ee14425e4e58d1d15c347872fe307f31134e272a0201cbe8773d481c9c16fcbd7ee0457bfbff82bbf5b71ba98d625ad86c48ba4a49c8408a8d064c
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/1380-3-0x00000000740B0000-0x00000000740E1000-memory.dmp	dridex_ldr
behavioral2/memory/1380-5-0x00000000740B0000-0x00000000740CF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
16	1380	rundll32.exe
18	1380	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 1308 wrote to memory of 1380	1308	rundll32.exe	68
PID 1308 wrote to memory of 1380	1308	rundll32.exe	68
PID 1308 wrote to memory of 1380	1308	rundll32.exe	68

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a2d3e1bee9006855826c4a62ee664fd9d2f0b5f0bfc1c8720425596ea09e3e1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a2d3e1bee9006855826c4a62ee664fd9d2f0b5f0bfc1c8720425596ea09e3e1.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1380

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/1380-3-0x00000000740B0000-0x00000000740E1000-memory.dmp

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memory/1380-4-0x0000000004B50000-0x0000000004B56000-memory.dmp

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memory/1380-5-0x00000000740B0000-0x00000000740CF000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads