dridex | 2a7d98e350c431dcce79966d10ed36236a0fa0dfa113cec0d629ddb3faa43be2

Analysis

max time kernel
32s
max time network
88s
platform
windows7_x64
resource
win7v20201028
submitted
31/03/2021, 16:22

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General

Target
2a7d98e350c431dcce79966d10ed36236a0fa0dfa113cec0d629ddb3faa43be2.dll
Size 377KB
Sample210331-vg8fvn89e2
SHA256 2a7d98e350c431dcce79966d10ed36236a0fa0dfa113cec0d629ddb3faa43be2
MD5 30f8b838c42d34b524ca7e16c259dce7
SHA1 89d75c516d3eb872197fd35f94cd85130536a98d
SHA512 35b0cb4f23091a65629c29e3475dd9e31b76c71282f78f3fa88157885283e07742e7dd7a2cdcb2f1c338caec81f6540584c88ba5325ad78925738a954a603a62
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.215:443
210.65.244.174:6601
195.201.199.53:2303

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
behavioral1/memory/2004-4-0x0000000074D80000-0x0000000074DBD000-memory.dmp	dridex_ldr
behavioral1/memory/2004-5-0x0000000074D80000-0x0000000074DBD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	2004	rundll32.exe
7	2004	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 7 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2004	1852	rundll32.exe	26
PID 1852 wrote to memory of 2004	1852	rundll32.exe	26
PID 1852 wrote to memory of 2004	1852	rundll32.exe	26
PID 1852 wrote to memory of 2004	1852	rundll32.exe	26
PID 1852 wrote to memory of 2004	1852	rundll32.exe	26
PID 1852 wrote to memory of 2004	1852	rundll32.exe	26
PID 1852 wrote to memory of 2004	1852	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a7d98e350c431dcce79966d10ed36236a0fa0dfa113cec0d629ddb3faa43be2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a7d98e350c431dcce79966d10ed36236a0fa0dfa113cec0d629ddb3faa43be2.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:2004

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/1632-7-0x000007FEF77D0000-0x000007FEF7A4A000-memory.dmp

Download

memory/2004-3-0x00000000756C1000-0x00000000756C3000-memory.dmp

Download

memory/2004-4-0x0000000074D80000-0x0000000074DBD000-memory.dmp

Download

memory/2004-5-0x0000000074D80000-0x0000000074DBD000-memory.dmp

Download

memory/2004-6-0x0000000000190000-0x0000000000191000-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