dridex | 8598f454e26f52f8916275b951717a1384047744c45092492d8550c4af02e748

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
27-08-2024 00:30

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General

Target

8598f454e26f52f8916275b951717a1384047744c45092492d8550c4af02e748.dll
Size

177KB
MD5

a053326a49c7ad34edd6f56a6e20aa31
SHA1

03a59cea56dd949a6fd40ea32de20e107ae1dca1
SHA256

8598f454e26f52f8916275b951717a1384047744c45092492d8550c4af02e748
SHA512

773151d62b8adfca52303bf582d8e5a71a95a77d88ea5c24955a650102432d7b92418d834ee9fd5627eaecebf820984bb36c8bed1a93e5f7f1d43ba2f627bd5e
SSDEEP

3072:RoNQK/z2dvUgKrjbeSUAjnERwDkCWptcvcb8qgAE0A2C8FQUVac8SurKI6bl/g:SaIzLgKrjbvUAjERycp6c8qgATA2TQUr

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

45.79.91.89:9987

157.245.231.228:6051

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
behavioral1/memory/2136-0-0x00000000753F0000-0x0000000075420000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2072	2136	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 2504 wrote to memory of 2136	2504	rundll32.exe	30
PID 2504 wrote to memory of 2136	2504	rundll32.exe	30
PID 2504 wrote to memory of 2136	2504	rundll32.exe	30
PID 2504 wrote to memory of 2136	2504	rundll32.exe	30
PID 2504 wrote to memory of 2136	2504	rundll32.exe	30
PID 2504 wrote to memory of 2136	2504	rundll32.exe	30
PID 2504 wrote to memory of 2136	2504	rundll32.exe	30
PID 2136 wrote to memory of 2072	2136	rundll32.exe	31
PID 2136 wrote to memory of 2072	2136	rundll32.exe	31
PID 2136 wrote to memory of 2072	2136	rundll32.exe	31
PID 2136 wrote to memory of 2072	2136	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8598f454e26f52f8916275b951717a1384047744c45092492d8550c4af02e748.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8598f454e26f52f8916275b951717a1384047744c45092492d8550c4af02e748.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 232
    3⤵
    - Program crash
    PID:2072

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/2136-0-0x00000000753F0000-0x0000000075420000-memory.dmp

Filesize
192KB

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memory/2136-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

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