dridex | dff5195d75afe79177ddcd5f08db18f90ddc6ac20d69f9bfdb9b5c8534025b2a

Analysis

max time kernel
149s
max time network
149s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:05

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General

Target
dff5195d75afe79177ddcd5f08db18f90ddc6ac20d69f9bfdb9b5c8534025b2a.dll
Size 188KB
Sample210224-7ryyaacy3j
SHA256 dff5195d75afe79177ddcd5f08db18f90ddc6ac20d69f9bfdb9b5c8534025b2a
MD5 79908c2dd15f3e7985255ff5791d8e94
SHA1 e54c12df957bcfb6e612a6d228fcbcae34626042
SHA512 ba6d72774a83d4895344253eb55bf04145a95b3d5aad0e101a6d750cbd514b12be6c9c1c08d67460e626b50f2266c005f3f0f19be0243f8f4b9cc31f70386a95
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/1264-3-0x00000000738B0000-0x00000000738E1000-memory.dmp	dridex_ldr
behavioral2/memory/1264-5-0x00000000738B0000-0x00000000738CF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
21	1264	rundll32.exe
23	1264	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 1152 wrote to memory of 1264	1152	rundll32.exe	41
PID 1152 wrote to memory of 1264	1152	rundll32.exe	41
PID 1152 wrote to memory of 1264	1152	rundll32.exe	41

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dff5195d75afe79177ddcd5f08db18f90ddc6ac20d69f9bfdb9b5c8534025b2a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dff5195d75afe79177ddcd5f08db18f90ddc6ac20d69f9bfdb9b5c8534025b2a.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1264

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/1264-3-0x00000000738B0000-0x00000000738E1000-memory.dmp

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memory/1264-4-0x0000000002710000-0x0000000002716000-memory.dmp

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memory/1264-5-0x00000000738B0000-0x00000000738CF000-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