MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b28d94f0a4f1561b6fb8a5797ab538946130854ca70f61cd41ee6ac742898af7. 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

Emotet (aka Heodo)

Vendor detections: 7

Intelligence 7 IOCs YARA 4 File information Comments

SHA256 hash:	b28d94f0a4f1561b6fb8a5797ab538946130854ca70f61cd41ee6ac742898af7
SHA3-384 hash:	81f1357de3e1aa7777a0740a8aca9ade31a4b4d212b1115197badd46dfc3a1c8c1704e7350a9188ddb927283472323fb
SHA1 hash:	e573c872ac885cb97f03ff3edfa252bc81c9883a
MD5 hash:	1c3b6de8142174be13ac83a465b84a19
humanhash:	fifteen-item-nineteen-purple
File name:	emotet_e3_b28d94f0a4f1561b6fb8a5797ab538946130854ca70f61cd41ee6ac742898af7_2020-08-25__031925._doc
Download:	download sample
Signature	Heodo Create hunting rule
File size:	235'641 bytes
First seen:	2020-08-25 03:19:50 UTC
Last seen:	Never
File type:	docx
MIME type:	application/msword
ssdeep	3072:i6rj6yw1MgpQiBhGWb6esLbTh8YuyDRBFtdfGkl/bn2Jgao7lw2xa:rHgtEWPsL/aTyT9GkVn2Jg9xw28
TLSH	F1343C6B57856E36FD8393F24545AB6C38BC9D2A3F88423FAC4776EE2E391B4024105D
Reporter	Cryptolaemus1
Tags:	doc Emotet epoch3 Heodo

Cryptolaemus1

Emotet epoch3 doc

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

TwinWave.EvilDoc.AutoExecSeparateWays.20200818.UNOFFICIAL

SecuriteInfo.com.VBS.Obfus-102.UNOFFICIAL

TwinWave.EvilDoc.WelcomeBackEmotetThatsWhyTheyCallItWindowPain.2020717.UNOFFICIAL

TwinWave.EvilDoc.EmotetCROCryLittleSister.20200720.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Using the Windows Management Instrumentation requests

Creating a process with a hidden window

DNS request

Sending an HTTP GET request

Creating a file in the %temp% subdirectories

Creating a process from a recently created file

Moving a file to the Windows subdirectory

Creating a service

Connection attempt

Sending an HTTP POST request

Deleting a recently created file

Enabling autorun for a service

Bypassing of proactive protection methods using Windows Management Instrumentation (WMI)

Launching a process by exploiting the app vulnerability

Result

Threat name:

Emotet

Detection:

malicious

Classification:

bank.troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/448202

Signature

Changes security center settings (notifications, updates, antivirus, firewall)

Creates processes via WMI

Document contains an embedded VBA with many string operations indicating source code obfuscation

Drops executables to the windows directory (C:\Windows) and starts them

Encrypted powershell cmdline option found

Hides that the sample has been downloaded from the Internet (zone.identifier)

Malicious encrypted Powershell command line found

Multi AV Scanner detection for submitted file

PowerShell case anomaly found

Powershell drops PE file

Very long command line found

Yara detected Emotet Downloader

Behaviour

Behavior Graph:

Download SVG

Detection:

emotet

Link:

https://mwdb.cert.pl/sample/b28d94f0a4f1561b6fb8a5797ab538946130854ca70f61cd41ee6ac742898af7/

Threat name:

Document-Word.Trojan.GenScript

Status:

Malicious

First seen:

2020-08-25 03:21:04 UTC

AV detection:

20 of 47 (42.55%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=wkgzj4fe6flbw35yuv4xvnjysrqtbbkmu4hwdtkb5zvmoqujrl3q._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro

Link:

https://tria.ge/reports/200825-5jtxmczxls/

Behaviour

Suspicious Office macro

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

Threat name:

Eldorado

Score:

0.90

Link:

https://yomi.yoroi.company/submissions/b28d94f0a4f1561b6fb8a5797ab538946130854ca70f61cd41ee6ac742898af7

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:	ach_Heodo_doc_20200820 Create hunting rule
Author:	abuse.ch
Description:	Detects Heodo DOC

Rule name:	ach_Heodo_doc_gen_3 Create hunting rule
Author:	abuse.ch
Description:	Detects Heodo (aka Emotet) DOC

Rule name:	Cobalt_functions Create hunting rule
Author:	@j0sm1
Description:	Detect functions coded with ROR edi,D; Detect CobaltStrike used by differents groups APT