dridex | 4d8c2d2475582c8216e6292327b028868e3506ddb252b8184127f698a5920f91

Analysis

max time kernel
78s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
11-06-2022 16:57

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General

Target

rkb86q.dll
Size

704KB
MD5

58690c2e2bca2fcb6148a2c68de45d3b
SHA1

d64621c7570cb0d2fc03c81d70349b2b94688bb1
SHA256

4d8c2d2475582c8216e6292327b028868e3506ddb252b8184127f698a5920f91
SHA512

33c979a4b9227ff2e70017d7967797ced31d27585d58d80cc22ab3f1fc93626535b2c0ba3bc7990f1f0b6d92ad0d71b7fc8147ab7767bbc45e2f260db8c9d309

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

97.107.127.161:443

45.33.94.33:5037

159.89.91.92:5037

158.69.118.130:1443

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

41 4564 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
41	4564	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 4544 wrote to memory of 4564	4544	rundll32.exe	rundll32.exe
PID 4544 wrote to memory of 4564	4544	rundll32.exe	rundll32.exe
PID 4544 wrote to memory of 4564	4544	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rkb86q.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4544

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\rkb86q.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4564-130-0x0000000000000000-mapping.dmp

Download
memory/4564-131-0x0000000074C60000-0x0000000074C9D000-memory.dmp

Filesize
244KB

Download
memory/4564-132-0x0000000074C60000-0x0000000074D24000-memory.dmp

Filesize
784KB

Download
memory/4564-134-0x0000000074C60000-0x0000000074D24000-memory.dmp

Filesize
784KB

Download
memory/4564-135-0x0000000074C60000-0x0000000074D24000-memory.dmp

Filesize
784KB

Download