dridex | 9ab83ab5ebed13f082970b5d0fce98adf85892290c1eb9608959975acc4e43b2

General

Target

9ab83ab5ebed13f082970b5d0fce98adf85892290c1eb9608959975acc4e43b2.dll
Size

330KB
MD5

a4d814e9e97b93f5882a930d290a04e3
SHA1

9e7838ba2dc62433d6050e09adab7d6b529c8d2a
SHA256

9ab83ab5ebed13f082970b5d0fce98adf85892290c1eb9608959975acc4e43b2
SHA512

6fc23329ce48b683abedb68f5313682fc10011d208ee02cc1f16e1505a10cce1824b99bf2dea72f66daed9c7798f7770003a5b5b2e939679dd64644e56395b51

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

C2

77.220.64.39:443

69.164.207.140:3388

78.47.139.43:4443

103.244.206.74:33443

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/1632-4-0x0000000000170000-0x00000000001AD000-memory.dmp	dridex_ldr
behavioral1/memory/1632-6-0x0000000000170000-0x00000000001C5000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

2 1632 rundll32.exe
6 1632 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
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rundll32.exe

pid process

1632 rundll32.exe

flow	pid	process
2	1632	rundll32.exe
6	1632	rundll32.exe

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

pid	process
1632	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1724 wrote to memory of 1632	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 1632	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 1632	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 1632	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 1632	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 1632	1724	rundll32.exe	rundll32.exe
PID 1724 wrote to memory of 1632	1724	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9ab83ab5ebed13f082970b5d0fce98adf85892290c1eb9608959975acc4e43b2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1724

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9ab83ab5ebed13f082970b5d0fce98adf85892290c1eb9608959975acc4e43b2.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
- Suspicious use of SetWindowsHookEx
PID:1632

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/1632-2-0x0000000000000000-mapping.dmp

Download
memory/1632-3-0x00000000761E1000-0x00000000761E3000-memory.dmp

Filesize
8KB

Download
memory/1632-4-0x0000000000170000-0x00000000001AD000-memory.dmp

Filesize
244KB

Download
memory/1632-5-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1632-6-0x0000000000170000-0x00000000001C5000-memory.dmp

Filesize
340KB

Download
memory/1704-7-0x000007FEF7D90000-0x000007FEF800A000-memory.dmp

Filesize
2.5MB

Download

Analysis

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