dridex | acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e

General

Target

acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e.dll
Size

196KB
MD5

f59d5bcf277b4a33e4461ebf03c32945
SHA1

66e62e7ae92f6cba50d97e9dee1243345e3931d2
SHA256

acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e
SHA512

08b1f65fb241a58f21aaaec419123d43ebcd05502226d507a9cdae3d39a870d3c2477a5b9735fe36c70a034085c1c459b997c3f9a9b7923fd7a6747b581423e0

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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/1836-4-0x0000000075390000-0x00000000753C3000-memory.dmp	dridex_ldr
behavioral1/memory/1836-6-0x0000000075390000-0x00000000753AF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1836 rundll32.exe
7 1836 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
4	1836	rundll32.exe
7	1836	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 1764 wrote to memory of 1836	1764	rundll32.exe	rundll32.exe
PID 1764 wrote to memory of 1836	1764	rundll32.exe	rundll32.exe
PID 1764 wrote to memory of 1836	1764	rundll32.exe	rundll32.exe
PID 1764 wrote to memory of 1836	1764	rundll32.exe	rundll32.exe
PID 1764 wrote to memory of 1836	1764	rundll32.exe	rundll32.exe
PID 1764 wrote to memory of 1836	1764	rundll32.exe	rundll32.exe
PID 1764 wrote to memory of 1836	1764	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\acf3c0921159622c9c9457f0b063af1855803780619d0a1e4b9098766ed5b49e.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1836

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/1288-7-0x000007FEF7F80000-0x000007FEF81FA000-memory.dmp

Filesize
2.5MB

Download
memory/1836-2-0x0000000000000000-mapping.dmp

Download
memory/1836-3-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/1836-4-0x0000000075390000-0x00000000753C3000-memory.dmp

Filesize
204KB

Download
memory/1836-5-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/1836-6-0x0000000075390000-0x00000000753AF000-memory.dmp

Filesize
124KB

Download

Analysis

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