dridex | 6bca2e07ee9be093dec658a09e93f785f170a5b4b123cf4ff69c711c4400048d

General

Target

6bca2e07ee9be093dec658a09e93f785f170a5b4b123cf4ff69c711c4400048d.dll
Size

196KB
MD5

20378a83be257e317adee82b4d1d456d
SHA1

a1f243b2d499ab014fdda2d246ea9338b63ba36e
SHA256

6bca2e07ee9be093dec658a09e93f785f170a5b4b123cf4ff69c711c4400048d
SHA512

8698b79f1b3a7a55fafd58ca00b64974d16e555c83bc755b950dc3fa94ad80b21937b4b629fbad6c819acb37a8e127173229e4475bbfff6a8fa6de7b547414c1

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/1648-4-0x0000000074AD0000-0x0000000074B03000-memory.dmp	dridex_ldr
behavioral1/memory/1648-6-0x0000000074AD0000-0x0000000074AEF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

6 1648 rundll32.exe
8 1648 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	1648	rundll32.exe
8	1648	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 1108 wrote to memory of 1648	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1648	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1648	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1648	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1648	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1648	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1648	1108	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bca2e07ee9be093dec658a09e93f785f170a5b4b123cf4ff69c711c4400048d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bca2e07ee9be093dec658a09e93f785f170a5b4b123cf4ff69c711c4400048d.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1648

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/1376-7-0x000007FEF7510000-0x000007FEF778A000-memory.dmp

Filesize
2.5MB

Download
memory/1648-2-0x0000000000000000-mapping.dmp

Download
memory/1648-3-0x00000000760D1000-0x00000000760D3000-memory.dmp

Filesize
8KB

Download
memory/1648-4-0x0000000074AD0000-0x0000000074B03000-memory.dmp

Filesize
204KB

Download
memory/1648-5-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/1648-6-0x0000000074AD0000-0x0000000074AEF000-memory.dmp

Filesize
124KB

Download

Analysis

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