dridex | a39548184c4f688f250ae90ce4bd1faea9968c9ea6b55560442a40bf1f27eb51

General

Target

a39548184c4f688f250ae90ce4bd1faea9968c9ea6b55560442a40bf1f27eb51.dll
Size

966KB
MD5

2423c0206cd63f407670eb68f62fd711
SHA1

eef8dea77a39c806731e42206e3faa8a35081893
SHA256

a39548184c4f688f250ae90ce4bd1faea9968c9ea6b55560442a40bf1f27eb51
SHA512

b72af31c393204e0be1c26923ac389ed7b5514eaebc6f4a25387f983183293303446e0fecb1e80b62310a60512355404af18c0c3ae40c20c5884e70cf5d1f958

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

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/1948-63-0x0000000075040000-0x0000000075156000-memory.dmp	dridex_ldr
behavioral1/memory/1948-62-0x0000000075040000-0x000000007507D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1948 rundll32.exe
7 1948 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	1948	rundll32.exe
7	1948	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 484 wrote to memory of 1948	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1948	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1948	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1948	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1948	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1948	484	rundll32.exe	rundll32.exe
PID 484 wrote to memory of 1948	484	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a39548184c4f688f250ae90ce4bd1faea9968c9ea6b55560442a40bf1f27eb51.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:484

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a39548184c4f688f250ae90ce4bd1faea9968c9ea6b55560442a40bf1f27eb51.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1948

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/1948-60-0x0000000000000000-mapping.dmp

Download
memory/1948-61-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

Filesize
8KB

Download
memory/1948-63-0x0000000075040000-0x0000000075156000-memory.dmp

Filesize
1.1MB

Download
memory/1948-62-0x0000000075040000-0x000000007507D000-memory.dmp

Filesize
244KB

Download
memory/1948-64-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download

Analysis

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