dridex | a5ccbb7e662e291f3ff85fde53478aaa77e57ff54cfe84b32efb7089966561f6

Analysis

max time kernel
26s
max time network
136s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:35

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General

Target
a5ccbb7e662e291f3ff85fde53478aaa77e57ff54cfe84b32efb7089966561f6.dll
Size 188KB
Sample210224-82bcgr3c4s
SHA256 a5ccbb7e662e291f3ff85fde53478aaa77e57ff54cfe84b32efb7089966561f6
MD5 3609442abc701541cdbccd177824cad5
SHA1 332fd36084edd0f05aa96fa8520fd2b5a52e658a
SHA512 f4bd864e697726025e70deb588e1df61e3a906d9bafa01bde40180891ce16d09bf74f7472228bd1375c91d22dddd719e4835244068de51e661b5173ff168838c
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516

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/4832-3-0x0000000073E30000-0x0000000073E61000-memory.dmp	dridex_ldr
behavioral2/memory/4832-5-0x0000000073E30000-0x0000000073E4F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
17	4832	rundll32.exe
19	4832	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 4808 wrote to memory of 4832	4808	rundll32.exe	15
PID 4808 wrote to memory of 4832	4808	rundll32.exe	15
PID 4808 wrote to memory of 4832	4808	rundll32.exe	15

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5ccbb7e662e291f3ff85fde53478aaa77e57ff54cfe84b32efb7089966561f6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5ccbb7e662e291f3ff85fde53478aaa77e57ff54cfe84b32efb7089966561f6.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4832

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/4832-3-0x0000000073E30000-0x0000000073E61000-memory.dmp

Download

memory/4832-4-0x0000000002A80000-0x0000000002A86000-memory.dmp

Download

memory/4832-5-0x0000000073E30000-0x0000000073E4F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads