dridex | f63e56f814ec286a5fb824307c2ef8e61c516855ef5efa1a0799cfe2e95d3b8b

Analysis

max time kernel
65s
max time network
127s
platform
windows10_x64
resource
win10v20201028
submitted
22/03/2021, 18:45

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General

Target
f63e56f814ec286a5fb824307c2ef8e61c516855ef5efa1a0799cfe2e95d3b8b.dll
Size 373KB
Sample210322-tcax4expc6
SHA256 f63e56f814ec286a5fb824307c2ef8e61c516855ef5efa1a0799cfe2e95d3b8b
MD5 63d17013c682d1f6d589234c58ac9ab1
SHA1 f959d928c2d9c402f68b29f76411151c6a255d12
SHA512 76b569df693dc4e149841532b454dcb5aebd32da0d26af4f28e9c3ba1142061ceb722ff6f9a36383d3ba856e460df0b068c417eb99c8cd993435dc7bbf856844
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

210.65.244.179:443
37.247.35.130:6601
103.18.108.116:6601

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

resource	yara_rule
behavioral2/memory/4796-3-0x0000000073500000-0x000000007353D000-memory.dmp	dridex_ldr
behavioral2/memory/4796-4-0x0000000073500000-0x000000007353D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	4796	rundll32.exe
17	4796	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

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 4796	4768	rundll32.exe	27
PID 4768 wrote to memory of 4796	4768	rundll32.exe	27
PID 4768 wrote to memory of 4796	4768	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f63e56f814ec286a5fb824307c2ef8e61c516855ef5efa1a0799cfe2e95d3b8b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4768
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f63e56f814ec286a5fb824307c2ef8e61c516855ef5efa1a0799cfe2e95d3b8b.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4796

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

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Downloads

memory/4796-3-0x0000000073500000-0x000000007353D000-memory.dmp

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memory/4796-4-0x0000000073500000-0x000000007353D000-memory.dmp

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memory/4796-5-0x0000000000500000-0x0000000000501000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads