dridex | c84aca81b126ee55023f4d1540505edee3b5ede8b67ba48256c2445425772b31

General

Target

3d278551aa6b00d6d462bd7bf6c7b3ac.dll
Size

750KB
MD5

3d278551aa6b00d6d462bd7bf6c7b3ac
SHA1

e43c01bb37c7df64821be14982dee63ae3011086
SHA256

c84aca81b126ee55023f4d1540505edee3b5ede8b67ba48256c2445425772b31
SHA512

b5f0b55abc32b55a6f4efe1924bbd29bac9c460dd3c4e398dfce570259f7f6ba2f7f0a5fa73ee4aad9fa81c0435c70438f1fa834c2bdea486a04f2e89a3b5902

Score

10^/10

dridex 10555 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

C2

192.46.210.220:443

143.244.140.214:808

45.77.0.96:6891

185.56.219.47:8116

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 2 IoCs

Processes:

rundll32.exe

flow pid process

23 1020 rundll32.exe
24 1020 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
23	1020	rundll32.exe
24	1020	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 3584 wrote to memory of 1020	3584	rundll32.exe	rundll32.exe
PID 3584 wrote to memory of 1020	3584	rundll32.exe	rundll32.exe
PID 3584 wrote to memory of 1020	3584	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d278551aa6b00d6d462bd7bf6c7b3ac.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3584

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d278551aa6b00d6d462bd7bf6c7b3ac.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1020

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/1020-115-0x0000000000000000-mapping.dmp

Download
memory/1020-116-0x00000000737E0000-0x00000000738A9000-memory.dmp

Filesize
804KB

Download
memory/1020-117-0x00000000737E0000-0x000000007381D000-memory.dmp

Filesize
244KB

Download
memory/1020-118-0x00000000737E0000-0x00000000738A9000-memory.dmp

Filesize
804KB

Download
memory/1020-120-0x0000000000EF0000-0x000000000103A000-memory.dmp

Filesize
1.3MB

Download
memory/1020-121-0x0000000001040000-0x0000000001041000-memory.dmp

Filesize
4KB

Download
memory/1020-122-0x0000000001040000-0x0000000001041000-memory.dmp

Filesize
4KB

Download
memory/1020-123-0x0000000001040000-0x0000000001041000-memory.dmp

Filesize
4KB

Download

Analysis

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