dridex | 79cef7c42464dee645953830f6336c05d5cf5f399fb80dfa2f30c7e5e33c2cc9

General

Target

79cef7c42464dee645953830f6336c05d5cf5f399fb80dfa2f30c7e5e33c2cc9.dll
Size

639KB
MD5

8ba1a2fc9069b4ad375f33a092b1fcb6
SHA1

2722e10bc97b9cac0d0622c00628e91b606b4630
SHA256

79cef7c42464dee645953830f6336c05d5cf5f399fb80dfa2f30c7e5e33c2cc9
SHA512

e157b261701e0663dd27442846df0a075a0d0630c6d8fe1191088d034097cac8d59fdd13ad5632de988620268c186e91603b8dce2f74c1404162834722b0abc5

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/1140-63-0x0000000074C80000-0x0000000074D43000-memory.dmp	dridex_ldr
behavioral1/memory/1140-62-0x0000000074C80000-0x0000000074CBD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

6 1140 rundll32.exe
8 1140 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
6	1140	rundll32.exe
8	1140	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 1944 wrote to memory of 1140	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1140	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1140	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1140	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1140	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1140	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1140	1944	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\79cef7c42464dee645953830f6336c05d5cf5f399fb80dfa2f30c7e5e33c2cc9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\79cef7c42464dee645953830f6336c05d5cf5f399fb80dfa2f30c7e5e33c2cc9.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1140

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/1140-60-0x0000000000000000-mapping.dmp

Download
memory/1140-61-0x0000000076691000-0x0000000076693000-memory.dmp

Filesize
8KB

Download
memory/1140-63-0x0000000074C80000-0x0000000074D43000-memory.dmp

Filesize
780KB

Download
memory/1140-62-0x0000000074C80000-0x0000000074CBD000-memory.dmp

Filesize
244KB

Download
memory/1140-64-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download

Analysis

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