dridex | 55971da79963e4e1ac94533e9097dc48c9d9f3e8903ffcd3146ad92b6a8e7ed2

General

Target

55971da79963e4e1ac94533e9097dc48c9d9f3e8903ffcd3146ad92b6a8e7ed2.dll
Size

188KB
MD5

f50a2fc77bda39064ac8a104ea12160d
SHA1

40230488500aebe9753e66658f6959340acea38f
SHA256

55971da79963e4e1ac94533e9097dc48c9d9f3e8903ffcd3146ad92b6a8e7ed2
SHA512

c9e3ae8e028733a1090fecff8be48c6c74a7d99259f1825220024e72077c6630a9d67da53ad744c82fd47b4a953df9341d27cce44ababd2410dffa3556d3ba13

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

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

Processes:

resource	yara_rule
behavioral1/memory/1872-5-0x0000000074C20000-0x0000000074C51000-memory.dmp	dridex_ldr
behavioral1/memory/1872-7-0x0000000074C20000-0x0000000074C3F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1872 rundll32.exe
8 1872 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
5	1872	rundll32.exe
8	1872	rundll32.exe

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1088 wrote to memory of 1872	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1872	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1872	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1872	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1872	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1872	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1872	1088	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55971da79963e4e1ac94533e9097dc48c9d9f3e8903ffcd3146ad92b6a8e7ed2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1088

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55971da79963e4e1ac94533e9097dc48c9d9f3e8903ffcd3146ad92b6a8e7ed2.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1388-8-0x000007FEF7900000-0x000007FEF7B7A000-memory.dmp

Filesize
2.5MB

Download
memory/1872-2-0x0000000000000000-mapping.dmp

Download
memory/1872-3-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/1872-4-0x00000000748B0000-0x0000000074A53000-memory.dmp

Filesize
1.6MB

Download
memory/1872-5-0x0000000074C20000-0x0000000074C51000-memory.dmp

Filesize
196KB

Download
memory/1872-6-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

Download
memory/1872-7-0x0000000074C20000-0x0000000074C3F000-memory.dmp

Filesize
124KB

Download

Analysis

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