dridex | 2aed6c38a383b9c88add24ea8479d4ecabba5c7329046e2893ddb73947691174

Analysis

max time kernel
136s
max time network
138s
platform
windows7_x64
resource
win7v20201028
submitted
19-11-2020 15:05

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General

Target

dridex.dll
Size

539KB
MD5

61954aadde68824dc4a7f709ef14c4d5
SHA1

9563a7393c02f5541c7b37af31304037a2c1fcb8
SHA256

2aed6c38a383b9c88add24ea8479d4ecabba5c7329046e2893ddb73947691174
SHA512

5d62cb2fa628c2f3ace929912aeb24e3260c5708bbbf79b5e3ba2df727a99283b440d90c15d80952cecd17bfc605a86c8c4dc3bb2fd4d0b248609472a40e1ce9

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

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/1072-1-0x00000000002F0000-0x000000000032D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 1072 rundll32.exe
5 1072 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
3	1072	rundll32.exe
5	1072	rundll32.exe

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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1876 wrote to memory of 1072	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1072	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1072	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1072	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1072	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1072	1876	rundll32.exe	rundll32.exe
PID 1876 wrote to memory of 1072	1876	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dridex.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dridex.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1072

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/300-2-0x000007FEF7F80000-0x000007FEF81FA000-memory.dmp

Filesize
2.5MB

Download
memory/1072-0-0x0000000000000000-mapping.dmp

Download
memory/1072-1-0x00000000002F0000-0x000000000032D000-memory.dmp

Filesize
244KB

Download