dridex | 584535560c1edb7f31466ce2efacf0cd4ca94cb91929aaf08f22ac530071f88e

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 04:51

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General

Target

7_msdtckrm.dll
Size

180KB
MD5

78efcbf78180862250dda72701f2f1b1
SHA1

2bdef6651de6cd9ee884149b894141c95650b6e7
SHA256

972450a14781c1a1be59542e69585fa8548d2150ede9045009d1016472a34597
SHA512

e54569fda2f4aafc02c5bbd00012a0a83822d85c391378302d44008b0556ac6e1ab3d90bdf3148a9ad93d20886d0893403b877b71580f8f69c849bfc65b5f022
SSDEEP

3072:y+8ap4RPerDATzSZBBQs7iRE2PJspXlgQo/D1FZdvF+mAuZl6iTK:p8oQ+cfABus72E2PGpG/PvBAPi

Score

10^/10

dridex 22202 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22202

155.138.203.91:443

207.180.220.242:8116

46.101.142.214:6891

rc4.plain

Signatures

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

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral5/memory/2628-0-0x0000000075170000-0x000000007519F000-memory.dmp	dridex_ldr
behavioral5/memory/2628-3-0x0000000075170000-0x000000007519F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2044	2628	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 2296 wrote to memory of 2628	2296	rundll32.exe	30
PID 2296 wrote to memory of 2628	2296	rundll32.exe	30
PID 2296 wrote to memory of 2628	2296	rundll32.exe	30
PID 2296 wrote to memory of 2628	2296	rundll32.exe	30
PID 2296 wrote to memory of 2628	2296	rundll32.exe	30
PID 2296 wrote to memory of 2628	2296	rundll32.exe	30
PID 2296 wrote to memory of 2628	2296	rundll32.exe	30
PID 2628 wrote to memory of 2044	2628	rundll32.exe	31
PID 2628 wrote to memory of 2044	2628	rundll32.exe	31
PID 2628 wrote to memory of 2044	2628	rundll32.exe	31
PID 2628 wrote to memory of 2044	2628	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7_msdtckrm.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7_msdtckrm.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2628 -s 244
    3⤵
    - Program crash
    PID:2044

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/2628-2-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/2628-0-0x0000000075170000-0x000000007519F000-memory.dmp

Filesize
188KB

Download
memory/2628-3-0x0000000075170000-0x000000007519F000-memory.dmp

Filesize
188KB

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