dridex | ebb8164bc266bee533cb0ca2c05663e78a45b566630e5c883f51dd3cfd172bbe

Analysis

max time kernel
26s
max time network
105s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:05

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General

Target

ebb8164bc266bee533cb0ca2c05663e78a45b566630e5c883f51dd3cfd172bbe.dll
Size

188KB
MD5

b642caf5543408fa97399cbb791c8703
SHA1

c3d716ffe212ea56ffb9aaa41e4e92784ea81309
SHA256

ebb8164bc266bee533cb0ca2c05663e78a45b566630e5c883f51dd3cfd172bbe
SHA512

220525b57a951f937a59dde47ff151e4775f817d7034f984862a28cd02205df7f67d0f9038f65cf873f62ce4cc018a0feb71443989da1b02468ebf08bbfb3fe0

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/1384-3-0x0000000073EF0000-0x0000000073F21000-memory.dmp	dridex_ldr
behavioral2/memory/1384-5-0x0000000073EF0000-0x0000000073F0F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 1384 rundll32.exe
18 1384 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
16	1384	rundll32.exe
18	1384	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 1192 wrote to memory of 1384	1192	rundll32.exe	rundll32.exe
PID 1192 wrote to memory of 1384	1192	rundll32.exe	rundll32.exe
PID 1192 wrote to memory of 1384	1192	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ebb8164bc266bee533cb0ca2c05663e78a45b566630e5c883f51dd3cfd172bbe.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ebb8164bc266bee533cb0ca2c05663e78a45b566630e5c883f51dd3cfd172bbe.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1384

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/1384-2-0x0000000000000000-mapping.dmp

Download
memory/1384-3-0x0000000073EF0000-0x0000000073F21000-memory.dmp

Filesize
196KB

Download
memory/1384-4-0x0000000000DF0000-0x0000000000DF6000-memory.dmp

Filesize
24KB

Download
memory/1384-5-0x0000000073EF0000-0x0000000073F0F000-memory.dmp

Filesize
124KB

Download