dridex | 94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2

Analysis

max time kernel
62s
max time network
137s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:09

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General

Target

94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2.dll
Size

188KB
MD5

cd9e3aed8b1d7a1135ad1022b88849be
SHA1

c3135d094c25bd9b5b5cc376a161138b15a0c78f
SHA256

94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2
SHA512

47f058a9aff4f9d7087903581ebf1262d77d490c9576f39b392a35bf724fee01716a6b2a1be445d948f83d344dcc23dfa9d581e2985592cc0cbd47c719bcc33d

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

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
behavioral2/memory/644-3-0x0000000074260000-0x0000000074291000-memory.dmp	dridex_ldr
behavioral2/memory/644-5-0x0000000074260000-0x000000007427F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

22 644 rundll32.exe
24 644 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
22	644	rundll32.exe
24	644	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 4068 wrote to memory of 644	4068	rundll32.exe	rundll32.exe
PID 4068 wrote to memory of 644	4068	rundll32.exe	rundll32.exe
PID 4068 wrote to memory of 644	4068	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4068

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\94c66517b87d6e58b525f39d36de3c62932e2857ee750ad8e06cafbe721d1cc2.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:644

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/644-2-0x0000000000000000-mapping.dmp

Download
memory/644-3-0x0000000074260000-0x0000000074291000-memory.dmp

Filesize
196KB

Download
memory/644-4-0x00000000030C0000-0x00000000030C6000-memory.dmp

Filesize
24KB

Download
memory/644-5-0x0000000074260000-0x000000007427F000-memory.dmp

Filesize
124KB

Download