MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4b899825598a3820f7eaab45c6f6235c0f79a4bfd8cb8d423a464f5bc0e4b68. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

Dridex

Vendor detections: 7

Intelligence 7 IOCs YARA 4 File information Comments 1

SHA256 hash:	c4b899825598a3820f7eaab45c6f6235c0f79a4bfd8cb8d423a464f5bc0e4b68
SHA3-384 hash:	e72f191d37bafafb9087289c72acfcf2caf5cc4f8f7a881bbb1f1fcd57f310392e4599e2be3794a4f80428cb5c598f93
SHA1 hash:	fa9c70473c36bc4396999dcb09305db631b50453
MD5 hash:	e0165884975bc8dc3d8bee08e1d80a72
humanhash:	minnesota-asparagus-xray-may
File name:	c4b899825598a3820f7eaab45c6f6235c0f79a4bfd8cb8d423a464f5bc0e4b68
Download:	download sample
Signature	Dridex Create hunting rule
File size:	162'304 bytes
First seen:	2021-04-21 02:35:40 UTC
Last seen:	Never
File type:	dll
MIME type:	application/x-dosexec
imphash	f71b9cb9891e9cf4bae79d2b5aa115c6 (1'586 x Dridex)
ssdeep	3072:AiFieJeVDC5PIh/31VeSDH2jW+zsKWncDlRe0PLDt:reAU/TeSH26cs+7
TLSH	1DF3E00AED9FE988E85C51F1CA4D363EE9713E371B5BDD08C5846E9DC24B252A4F0352
Reporter	Cryptolaemus1
Tags:	40111 Dridex

Cryptolaemus1

Dridex 40111

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

DridexLoader

Link:

https://www.capesandbox.com/analysis/141294/

Detection(s):

SecuriteInfo.com.Trojan.Agent.FFPX.110.28486.UNOFFICIAL

Win.Malware.Ffpx-9852716-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Result

Threat name:

Dridex Dropper

Detection:

malicious

Classification:

bank.troj.evad

Score:

84 / 100

Link:

https://www.joesandbox.com/analysis/690274

Signature

C2 URLs / IPs found in malware configuration

Dridex dropper found

Found malware configuration

Found potential dummy code loops (likely to delay analysis)

Machine Learning detection for sample

Tries to delay execution (extensive OutputDebugStringW loop)

Tries to detect sandboxes / dynamic malware analysis system (file name check)

Yara detected Dridex unpacked file

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c4b899825598a3820f7eaab45c6f6235c0f79a4bfd8cb8d423a464f5bc0e4b68/

Threat name:

Win32.Infostealer.Dridex

Status:

Malicious

First seen:

2021-04-21 02:59:45 UTC

AV detection:

27 of 29 (93.10%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ys4jtasvtcryed36vk2fy33cgxappgsl7wglrvbdursplpaojnua._file

Result

Malware family:

dridex

Score:

10/10

Tags:

family:dridex botnet:40111 botnet evasion loader trojan

Link:

https://tria.ge/reports/210421-731facr4pn/

Behaviour

Suspicious use of WriteProcessMemory

Checks whether UAC is enabled

Dridex Loader

Dridex

Malware Config

C2 Extraction:

8.210.53.215:443
72.249.22.245:2303
188.40.137.206:8172

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.14

Link:

https://yomi.yoroi.company/submissions/c4b899825598a3820f7eaab45c6f6235c0f79a4bfd8cb8d423a464f5bc0e4b68

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	DridexLoader Create hunting rule
Author:	kevoreilly
Description:	Dridex v4 dropper C2 parsing function

Rule name:	DridexV4 Create hunting rule
Author:	kevoreilly
Description:	Dridex v4 Payload

Rule name:	MALWARE_Win_DLLLoader Create hunting rule
Author:	ditekSHen
Description:	Detects unknown DLL Loader

Rule name:	win_dridex_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Dridex

DLL dll c4b899825598a3820f7eaab45c6f6235c0f79a4bfd8cb8d423a464f5bc0e4b68

(this sample)

Cape

https://www.capesandbox.com/analysis/141294/

URLhaus

https://urlhaus.abuse.ch/url/1120495/

Delivery method

Distributed via web download

Comments

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AccidentalRebel commented on 2021-04-21 03:19:14 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009.029] Anti-Behavioral Analysis::Instruction Testing
1) [B0012.001] Anti-Static Analysis::Argument Obfuscation
2) [C0026.002] Data Micro-objective::XOR::Encode Data