dridex | 0bcaa3a31fb598a27437bb294a6e34ce138fc3e65adbff2ca7a13799547cd76a

Analysis

max time kernel
27s
max time network
135s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:08

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General

Target

0bcaa3a31fb598a27437bb294a6e34ce138fc3e65adbff2ca7a13799547cd76a.dll
Size

188KB
MD5

c8ed2da280428b796645d8e090708408
SHA1

86b6a23a5b1217ba6782b0f7f36d903f474057b1
SHA256

0bcaa3a31fb598a27437bb294a6e34ce138fc3e65adbff2ca7a13799547cd76a
SHA512

b258bfbc13fa25886ede98a3e69d9a3edfb2f49f0d4ff3c279c5cb6a37d4fc88ad58c7fbdb6005b488a6002220a127d45f6e83b796d3154a936e10edf183b93f

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

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

Processes:

resource	yara_rule
behavioral2/memory/1192-3-0x0000000074340000-0x0000000074371000-memory.dmp	dridex_ldr
behavioral2/memory/1192-5-0x0000000074340000-0x000000007435F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

15 1192 rundll32.exe
17 1192 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
15	1192	rundll32.exe
17	1192	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1032 wrote to memory of 1192	1032	rundll32.exe	rundll32.exe
PID 1032 wrote to memory of 1192	1032	rundll32.exe	rundll32.exe
PID 1032 wrote to memory of 1192	1032	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0bcaa3a31fb598a27437bb294a6e34ce138fc3e65adbff2ca7a13799547cd76a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0bcaa3a31fb598a27437bb294a6e34ce138fc3e65adbff2ca7a13799547cd76a.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1192

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

Replay Monitor

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Downloads

memory/1192-2-0x0000000000000000-mapping.dmp

Download
memory/1192-3-0x0000000074340000-0x0000000074371000-memory.dmp

Filesize
196KB

Download
memory/1192-4-0x0000000002FC0000-0x0000000002FC6000-memory.dmp

Filesize
24KB

Download
memory/1192-5-0x0000000074340000-0x000000007435F000-memory.dmp

Filesize
124KB

Download