dridex | adf6d91922505e07b840cdd9f74d33d6c7872bc6534a9be6b27b5d03470c835b

Analysis

max time kernel
127s
max time network
133s
platform
windows7_x64
resource
win7
submitted
06-10-2020 07:28

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General

Target

b251618e473b04ec4dd58d8bbf975c2a.dll
Size

392KB
MD5

b251618e473b04ec4dd58d8bbf975c2a
SHA1

fb3f3e8c8a0b0077aaff175f7d777533ae88a22c
SHA256

adf6d91922505e07b840cdd9f74d33d6c7872bc6534a9be6b27b5d03470c835b
SHA512

d237c28be93a04423e1ce16f07b75a8ea3a3da0e251a4042c68202a9f94bf7e0fc10f79295c8a84e3cd91660f7a5ea312bb08f4f27e681c7cbdd65524f1c3007

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

85.114.134.25:443

94.23.45.86:3889

145.239.169.34:4643

162.212.152.222:3389

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/288-1-0x00000000007E0000-0x000000000081D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

3 288 rundll32.exe
6 288 rundll32.exe
7 288 rundll32.exe
8 288 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	288	rundll32.exe
6	288	rundll32.exe
7	288	rundll32.exe
8	288	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 1104 wrote to memory of 288	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 288	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 288	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 288	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 288	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 288	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 288	1104	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b251618e473b04ec4dd58d8bbf975c2a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1104

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b251618e473b04ec4dd58d8bbf975c2a.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:288

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/288-0-0x0000000000000000-mapping.dmp

Download
memory/288-1-0x00000000007E0000-0x000000000081D000-memory.dmp

Filesize
244KB

Download
memory/1660-2-0x000007FEF6880000-0x000007FEF6AFA000-memory.dmp

Filesize
2.5MB

Download