dridex | 2cbfa60a5dd07e82905309c94f58e30b16347bc3847e7b4c2295afca1b24f727

Analysis

max time kernel
29s
max time network
96s
platform
windows10_x64
resource
win10v20210408
submitted
20-06-2021 22:31

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General

Target

2cbfa60a5dd07e82905309c94f58e30b16347bc3847e7b4c2295afca1b24f727.dll
Size

196KB
MD5

17fd5ed00ab174d9e9948b0754593ab4
SHA1

72dc65a76aba38e5fe5431642d90c3944a167c7a
SHA256

2cbfa60a5dd07e82905309c94f58e30b16347bc3847e7b4c2295afca1b24f727
SHA512

5d254ec63fa6204317974402e017b94e9150c8da938103009f5ca7e86cae336f95e8c750f41c660a62f2e1e2222f356b1e208897f4b4c49b48fe35bd8d5345ee

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

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 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/868-115-0x00000000735E0000-0x0000000073613000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

12 868 rundll32.exe
14 868 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
12	868	rundll32.exe
14	868	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 528 wrote to memory of 868	528	rundll32.exe	rundll32.exe
PID 528 wrote to memory of 868	528	rundll32.exe	rundll32.exe
PID 528 wrote to memory of 868	528	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cbfa60a5dd07e82905309c94f58e30b16347bc3847e7b4c2295afca1b24f727.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:528

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2cbfa60a5dd07e82905309c94f58e30b16347bc3847e7b4c2295afca1b24f727.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:868

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/868-114-0x0000000000000000-mapping.dmp

Download
memory/868-115-0x00000000735E0000-0x0000000073613000-memory.dmp

Filesize
204KB

Download
memory/868-117-0x00000000009E0000-0x00000000009E6000-memory.dmp

Filesize
24KB

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