dridex | 74aaa2698ca8845ad5d8d8542b55c9ba3aeafb9b1df7518aef05498b9493147f

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
15-08-2024 17:27

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General

Target

a53c0acda087002a06e3c26ca5da13c0N.dll
Size

184KB
MD5

a53c0acda087002a06e3c26ca5da13c0
SHA1

0c33502abca9e98a42c6713e18096a33cfb0bc11
SHA256

74aaa2698ca8845ad5d8d8542b55c9ba3aeafb9b1df7518aef05498b9493147f
SHA512

a289578de3e5b57e512c60f0f39a8d0bdcb5ccf22864d5e3d960f3062cc67536ddd49a0e604bf35d7a3c8fa6ac8c6eeaf2c8e325c4b724f226d00987e7e25f74
SSDEEP

3072:FJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8JFa//2uFrSc:ufYOX+wTScR/Xzku9LVweuG

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

80.241.218.90:443

103.161.172.109:13786

87.98.128.76:5723

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/2424-0-0x0000000075210000-0x000000007523F000-memory.dmp	dridex_ldr
behavioral1/memory/2424-3-0x0000000075210000-0x000000007523F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2656	2424	WerFault.exe	30

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

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

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2424	2840	rundll32.exe	30
PID 2840 wrote to memory of 2424	2840	rundll32.exe	30
PID 2840 wrote to memory of 2424	2840	rundll32.exe	30
PID 2840 wrote to memory of 2424	2840	rundll32.exe	30
PID 2840 wrote to memory of 2424	2840	rundll32.exe	30
PID 2840 wrote to memory of 2424	2840	rundll32.exe	30
PID 2840 wrote to memory of 2424	2840	rundll32.exe	30
PID 2424 wrote to memory of 2656	2424	rundll32.exe	31
PID 2424 wrote to memory of 2656	2424	rundll32.exe	31
PID 2424 wrote to memory of 2656	2424	rundll32.exe	31
PID 2424 wrote to memory of 2656	2424	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a53c0acda087002a06e3c26ca5da13c0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a53c0acda087002a06e3c26ca5da13c0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2424
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2424 -s 220
    3⤵
    - Program crash
    PID:2656

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/2424-2-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/2424-0-0x0000000075210000-0x000000007523F000-memory.dmp

Filesize
188KB

Download
memory/2424-3-0x0000000075210000-0x000000007523F000-memory.dmp

Filesize
188KB

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