dridex | 98b86b84236397a88c69916d68734c815b97a00529d1bf513584c81421083e59

Analysis

max time kernel
135s
max time network
136s
platform
windows7_x64
resource
win7v20201028
submitted
02-11-2020 15:38

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General

Target

745ec2e78f46e4708d61b0c53ff17e9e.dll
Size

392KB
MD5

745ec2e78f46e4708d61b0c53ff17e9e
SHA1

c59243926c629ed640370e78e62ac95645f1d850
SHA256

98b86b84236397a88c69916d68734c815b97a00529d1bf513584c81421083e59
SHA512

2be9bd3c6870ad57d4feed51337d7e65d5a6d91506c12e2add04760c4cc49ab7ff7890355c5a2c7339de0d848bca815472fc475b250d5012b237b7bf30143b33

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

195.154.237.245:443

46.105.131.73:8172

91.238.160.158:18443

213.183.128.99:3786

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/1764-1-0x0000000000770000-0x00000000007AD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1764 rundll32.exe
7 1764 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
4	1764	rundll32.exe
7	1764	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 1360 wrote to memory of 1764	1360	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 1764	1360	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 1764	1360	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 1764	1360	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 1764	1360	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 1764	1360	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 1764	1360	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\745ec2e78f46e4708d61b0c53ff17e9e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1360

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\745ec2e78f46e4708d61b0c53ff17e9e.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1764

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/1656-2-0x000007FEF74A0000-0x000007FEF771A000-memory.dmp

Filesize
2.5MB

Download
memory/1764-0-0x0000000000000000-mapping.dmp

Download
memory/1764-1-0x0000000000770000-0x00000000007AD000-memory.dmp

Filesize
244KB

Download