dridex | c0a9d7b9e3f618348dc14c887470ea9f53f5ea3011ba41504cb6c71c1ee3bdab

General

Target

07b5a88d6e28c218992e1b6b663aa685.dll
Size

750KB
MD5

07b5a88d6e28c218992e1b6b663aa685
SHA1

ca839ee407bbc33b38d9a8a51e0b6909ff5b2aca
SHA256

c0a9d7b9e3f618348dc14c887470ea9f53f5ea3011ba41504cb6c71c1ee3bdab
SHA512

7785e3aa330d469be13a80a8bbfe84521533d45ebabfe68b03d88367ec57abd8f03a4ea695ff5f674aa337041e1eb553c9adff3b7b25ad186d38b29c1a36f40e

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 2784 rundll32.exe
24 2784 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	2784	rundll32.exe
24	2784	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 2740 wrote to memory of 2784	2740	rundll32.exe	rundll32.exe
PID 2740 wrote to memory of 2784	2740	rundll32.exe	rundll32.exe
PID 2740 wrote to memory of 2784	2740	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\07b5a88d6e28c218992e1b6b663aa685.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2740

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\07b5a88d6e28c218992e1b6b663aa685.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:2784

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/2784-115-0x0000000000000000-mapping.dmp

Download
memory/2784-116-0x0000000073880000-0x0000000073949000-memory.dmp

Filesize
804KB

Download
memory/2784-118-0x0000000073880000-0x0000000073949000-memory.dmp

Filesize
804KB

Download
memory/2784-117-0x0000000073880000-0x00000000738BD000-memory.dmp

Filesize
244KB

Download
memory/2784-120-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2784-122-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2784-121-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2784-192-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download

Analysis

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