dridex | cd9045fd136792eec5991b6dd0c75bcfea50e4fe6b19637be3cc0fbb52942041

Analysis

max time kernel
43s
max time network
17s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
08-09-2024 21:33

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General

Target

3e3a0922a99c911f38aeadc9417118f0N.dll
Size

164KB
MD5

3e3a0922a99c911f38aeadc9417118f0
SHA1

a9b0776ee6a106c6816bfc9297bc9f3f1b325e03
SHA256

cd9045fd136792eec5991b6dd0c75bcfea50e4fe6b19637be3cc0fbb52942041
SHA512

b41a1093bdefb21d82e19e5fb0a2cca3cd605482d60d66689d2e9262e08521501a8db41d67a9a1b38541c618c29484188b1891102e25805ac0b566f6a42b4d9c
SSDEEP

3072:WAkzrvTXX6m6acOf1QwRBsdeUb8Oy7YuLg0Gjj5D:ivvbLdRAesA7YU2

Score

10^/10

dridex 111 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

111

169.255.216.36:443

123.231.252.10:4646

85.25.109.116:3889

91.83.93.89:4643

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

Processes:

resource	yara_rule
behavioral1/memory/800-0-0x0000000074670000-0x000000007469B000-memory.dmp	dridex_ldr
behavioral1/memory/800-3-0x0000000074670000-0x000000007469B000-memory.dmp	dridex_ldr

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 7 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 1232 wrote to memory of 800	1232	rundll32.exe	30
PID 1232 wrote to memory of 800	1232	rundll32.exe	30
PID 1232 wrote to memory of 800	1232	rundll32.exe	30
PID 1232 wrote to memory of 800	1232	rundll32.exe	30
PID 1232 wrote to memory of 800	1232	rundll32.exe	30
PID 1232 wrote to memory of 800	1232	rundll32.exe	30
PID 1232 wrote to memory of 800	1232	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e3a0922a99c911f38aeadc9417118f0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e3a0922a99c911f38aeadc9417118f0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:800

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

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Downloads

memory/800-0-0x0000000074670000-0x000000007469B000-memory.dmp

Filesize
172KB

Download
memory/800-2-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/800-3-0x0000000074670000-0x000000007469B000-memory.dmp

Filesize
172KB

Download