MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3873789add951f7faaee58644422e134440be2903271725124cff640acd0ad4d. 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: 6

Intelligence 6 IOCs YARA 4 File information Comments

SHA256 hash:	3873789add951f7faaee58644422e134440be2903271725124cff640acd0ad4d
SHA3-384 hash:	a384802ddb96cdcfbdb6ceab805f75107ba531d4e9634ad9addb3a63fba435eefab0e8dcfd7e13bd678f876e91e7e064
SHA1 hash:	21cf9ac2854d63aebf84df14557a1f0de77b9bf4
MD5 hash:	8511094862b74d41d7018625a568569f
humanhash:	maine-snake-high-september
File name:	emotet_e3_3873789add951f7faaee58644422e134440be2903271725124cff640acd0ad4d_2020-08-20__030854._doc
Download:	download sample
Signature	Heodo Create hunting rule
File size:	206'385 bytes
First seen:	2020-08-20 03:09:17 UTC
Last seen:	Never
File type:	docx
MIME type:	application/msword
ssdeep	3072:E4PrXcuQuvpzm4bkiaMQgAlSiTisQKz3wGB/TOk/z3Iw0v:ZDRv1m4bnQgISE/3wGB/TOkjIw0v
TLSH	B714C8A820E97C9EC907323179FA8BBF50805E8E11628979B73D335A3FFB175A271115
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-101.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/440282

Signature

Creates processes via WMI

Document contains an embedded VBA with base64 encoded strings

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

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

PowerShell case anomaly found

Powershell drops PE file

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

Very long command line found

Yara detected Emotet

Yara detected Emotet Downloader

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3873789add951f7faaee58644422e134440be2903271725124cff640acd0ad4d/

Threat name:

Document-Word.Trojan.Heuristic

Status:

Malicious

First seen:

2020-08-20 03:11:05 UTC

AV detection:

20 of 48 (41.67%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=hbzxrgw5supx7kxolbseiixbgrcaxyuqgjyxeujez73eblgqvvgq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

macro

Link:

https://tria.ge/reports/200820-apt79ejbn2/

Behaviour

Suspicious Office macro

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

Threat name:

Emotet

Score:

0.70

Link:

https://yomi.yoroi.company/submissions/3873789add951f7faaee58644422e134440be2903271725124cff640acd0ad4d

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