dridex | da55ece50b5d86e3446d8134b152ad96c8afefb991163ca052b0d08a2b5037d6

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-09-2024 12:30

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General

Target

a28c6a78253959118f81c4804e2cf570N.dll
Size

277KB
MD5

a28c6a78253959118f81c4804e2cf570
SHA1

7575498103924b1b50fb2888b6de69d92dc53ad3
SHA256

da55ece50b5d86e3446d8134b152ad96c8afefb991163ca052b0d08a2b5037d6
SHA512

41b1aa67ba071d535bda682acdab2172c0c76c76e104345715d602b41ca845996cc1f910dbaa8d00591fcaccb1f069e5f3c2f33322d6275a29c5b93249ea8dfc
SSDEEP

6144:XzWxkOP4p2EesvcDi6DOHPJo3d0KJ4z1WE9au/4pAClIXJO9wMkPjCIeh0mzJMEl:aSOP47es0e6yHPJo3d0KJ4z1WE9au/4L

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

144.76.1.150:443

50.249.212.98:23399

104.168.154.79:5007

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

Processes:

resource	yara_rule
behavioral1/memory/1980-1-0x0000000074C40000-0x0000000074C71000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1560	1980	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 1796 wrote to memory of 1980	1796	rundll32.exe	31
PID 1796 wrote to memory of 1980	1796	rundll32.exe	31
PID 1796 wrote to memory of 1980	1796	rundll32.exe	31
PID 1796 wrote to memory of 1980	1796	rundll32.exe	31
PID 1796 wrote to memory of 1980	1796	rundll32.exe	31
PID 1796 wrote to memory of 1980	1796	rundll32.exe	31
PID 1796 wrote to memory of 1980	1796	rundll32.exe	31
PID 1980 wrote to memory of 1560	1980	rundll32.exe	32
PID 1980 wrote to memory of 1560	1980	rundll32.exe	32
PID 1980 wrote to memory of 1560	1980	rundll32.exe	32
PID 1980 wrote to memory of 1560	1980	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a28c6a78253959118f81c4804e2cf570N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a28c6a78253959118f81c4804e2cf570N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1980
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 220
    3⤵
    - Program crash
    PID:1560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1980-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1980-1-0x0000000074C40000-0x0000000074C71000-memory.dmp

Filesize
196KB

Download
memory/1980-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download