dridex | c7f410926c4fe17c41e37d581b9d6908582eb821075ba7d4a20f58161ef154a7

Analysis

max time kernel
28s
max time network
138s
platform
windows10_x64
resource
win10v20201028
submitted
07/02/2021, 23:24

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General

Target
q8w20z.zip.dll
Size 576KB
Sample210207-dgfwepmpha
SHA256 c7f410926c4fe17c41e37d581b9d6908582eb821075ba7d4a20f58161ef154a7
MD5 abf64911eb9dd3ca980ca660712567bd
SHA1 3465929617850b18d612f407e280af28cca72286
SHA512 77a321b6b26a5f4a83c87cd56a27e185ac4d880240f6cf747e256898c023475af47cd66f121fbae0996063ad42676f731c8baee803eb41502a50d53b4bf1bc21
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

77.220.64.131:443
5.196.204.251:5037
192.99.41.136:981
24.229.3.146:4664

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/1216-3-0x0000000000400000-0x000000000043D000-memory.dmp	dridex_ldr
behavioral2/memory/1216-4-0x0000000000400000-0x000000000043D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	1216	rundll32.exe
17	1216	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 580 wrote to memory of 1216	580	rundll32.exe	71
PID 580 wrote to memory of 1216	580	rundll32.exe	71
PID 580 wrote to memory of 1216	580	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\q8w20z.zip.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:580
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\q8w20z.zip.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1216

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/1216-3-0x0000000000400000-0x000000000043D000-memory.dmp

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memory/1216-4-0x0000000000400000-0x000000000043D000-memory.dmp

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memory/1216-5-0x0000000003370000-0x0000000003371000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads