dridex | 3a99fed622ba7f84b90524e604f0dc1f348922664e42eeada7919b77e51484c4

Analysis

max time kernel
26s
max time network
113s
platform
windows10_x64
resource
win10v20210410
submitted
05/05/2021, 23:03

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General

Target
57807c40_by_Libranalysis.dll
Size 162KB
Sample210505-ndk64msn52
SHA256 3a99fed622ba7f84b90524e604f0dc1f348922664e42eeada7919b77e51484c4
MD5 57807c4087ad27a49d99748833cfd1ad
SHA1 821a68c527ca6c236b78b271edaa359e2592970a
SHA512 2d56e4270fc23ed218c78058efeedf2e98223c35eea3c665f73f411e4d6190311e344e17b17e0085741b6bf2b47782b36f901e2a40e4051a235882f79a49e4e7
MD5 SHA1 SHA512

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443
172.93.133.123:2303
108.168.61.147:8172

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral2/memory/3768-115-0x00000000742B0000-0x00000000742DE000-memory.dmp	dridex_ldr

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 1928 wrote to memory of 3768	1928	rundll32.exe	72
PID 1928 wrote to memory of 3768	1928	rundll32.exe	72
PID 1928 wrote to memory of 3768	1928	rundll32.exe	72

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\57807c40_by_Libranalysis.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\57807c40_by_Libranalysis.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:3768

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3768-115-0x00000000742B0000-0x00000000742DE000-memory.dmp

Download

memory/3768-117-0x0000000000F80000-0x0000000000F86000-memory.dmp