dridex | 5f21e05769f21a0664fa7a630c02b8a82a3fbd80bc36ade66838005f52ba38da

Analysis

max time kernel
32s
max time network
93s
platform
windows7_x64
resource
win7v20201028
submitted
31/03/2021, 16:22

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General

Target
5f21e05769f21a0664fa7a630c02b8a82a3fbd80bc36ade66838005f52ba38da.dll
Size 377KB
Sample210331-bmdt2hvzfs
SHA256 5f21e05769f21a0664fa7a630c02b8a82a3fbd80bc36ade66838005f52ba38da
MD5 6c956f9cf93e91baff2f08bd72b735f0
SHA1 6c9c1a2ca0f3c328023d7f4320712bc8badf1f75
SHA512 df6056d52b942c95451b65c53957db250f306d582b01cbac19d5c1339a3edbb9a963d71127f9769f25b4e94fb0b591bc4be43eaf306ec291dd62fa2d07544e46
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/1836-4-0x0000000074650000-0x000000007468D000-memory.dmp	dridex_ldr
behavioral1/memory/1836-5-0x0000000074650000-0x000000007468D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	1836	rundll32.exe
8	1836	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 1044 wrote to memory of 1836	1044	rundll32.exe	25
PID 1044 wrote to memory of 1836	1044	rundll32.exe	25
PID 1044 wrote to memory of 1836	1044	rundll32.exe	25
PID 1044 wrote to memory of 1836	1044	rundll32.exe	25
PID 1044 wrote to memory of 1836	1044	rundll32.exe	25
PID 1044 wrote to memory of 1836	1044	rundll32.exe	25
PID 1044 wrote to memory of 1836	1044	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f21e05769f21a0664fa7a630c02b8a82a3fbd80bc36ade66838005f52ba38da.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f21e05769f21a0664fa7a630c02b8a82a3fbd80bc36ade66838005f52ba38da.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1836

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/316-7-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmp

Download

memory/1836-3-0x00000000760A1000-0x00000000760A3000-memory.dmp

Download

memory/1836-4-0x0000000074650000-0x000000007468D000-memory.dmp

Download

memory/1836-5-0x0000000074650000-0x000000007468D000-memory.dmp

Download

memory/1836-6-0x00000000001C0000-0x00000000001C1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads