MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a830905d19c1b1a262f5b6484dcbf74166b52e6742b363f5049fa03cec849557. 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: 10

Maldoc score: 3

Intelligence 10 IOCs YARA 6 File information Comments

SHA256 hash:	a830905d19c1b1a262f5b6484dcbf74166b52e6742b363f5049fa03cec849557
SHA3-384 hash:	384db2e8668f6ed7cbd59d38c514b2f0a1df7e77ada30a1aa2047174b2b8212b8ccce12bf600567c38da5345bab6884b
SHA1 hash:	4f6a7fc5fc21b4b91fe58444f62c89af635a7919
MD5 hash:	0c3f0d617388a2ea28095dab83c15957
humanhash:	north-happy-yellow-pasta
File name:	Form - Dec 22, 2021.xls
Download:	download sample
Signature	Heodo Create hunting rule
File size:	66'904 bytes
First seen:	2021-12-22 19:17:35 UTC
Last seen:	Never
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	1536:d0Nk3hbdlylKsgqopeJBWhZFGkE+cL2NdAKzMk9B+ooszMk9A+oos:dak3hbdlylKsgqopeJBWhZFGkE+cL2NP
TLSH	T13B635C56BB87998EDA4213358CE74359B337FC168BA7C7473554B3294EB4AE08C03A1B
Reporter	Cryptolaemus1
Tags:	Emotet epoch4 Heodo XLM xls

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id

Maldoc score: 3

OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section ID	Section size	Section name
1	4096 bytes	DocumentSummaryInformation
2	4096 bytes	SummaryInformation
3	52228 bytes	Workbook

OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

Type	Keyword	Description
AutoExec	Auto_Open	Runs when the Excel Workbook is opened
IOC	87.251.86.178	IPv4 address
Suspicious	XLM macro	XLM macro found. It may contain malicious code

Intelligence

File Origin

# of uploads :

# of downloads :

227

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Form - Dec 22, 2021.xls

Verdict:

Malicious activity

Analysis date:

2021-12-22 19:24:18 UTC

Tags:

macros macros40 trojan loader

Link:

https://app.any.run/tasks/5ff12961-3585-4ec4-9546-9ba637687b70

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Malicious

File type:

application/vnd.ms-excel

Has a screenshot:

False

Contains macros:

False

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/215848/

Detection(s):

TwinWave.EvilDoc.DOCXRSTRGOOD.MSHTA.210816.UNOFFICIAL

TwinWave.EvilDoc.HiddenSheetExcel4LureRecognizer.20200915.UNOFFICIAL

TwinWave.EvilDoc.Excel4MacroLuresWatchingTheDectives.20210115.UNOFFICIAL

TwinWave.EvilDoc.Excel4DragoTrainingMontage.20210204.UNOFFICIAL

TwinWave.EvilDoc.Excel4HateMeSometimes.20210819.UNOFFICIAL

TwinWave.EvilDoc.DOCXSTRGOODXL4.HTTP

TwinWave.EvilDoc.DridexUManiac.20211215.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

DNS request

Sending a custom TCP request

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Launching a process

Sending an HTTP GET request

Running batch commands by exploiting the app vulnerability

Result

Verdict:

Malicious

File Type:

Legacy Excel File

Link:

https://app.docguard.net/a830905d19c1b1a262f5b6484dcbf74166b52e6742b363f5049fa03cec849557/results/dashboard

Payload URLs

URL

File name

87.251.86.178

WorkBook

Document image

Image:

Download PNG

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

cmd macros macros-on-open mshta stripped

Link:

https://www.filescan.io/uploads/61c379f0ec6c6c14a9eaac1f/reports/d766ec71-9c12-4027-8519-aaea4b435e42/overview

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/a830905d19c1b1a262f5b6484dcbf74166b52e6742b363f5049fa03cec849557

Details

Excel 4.0 Macro

Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.

Macro Execution Coercion

Detected a document that appears to social engineer the user into activating embedded logic.

Autostarting Excel Macro Sheet

Excel contains Macrosheet logic that will trigger automatically upon document open.

Document With Minimal Content

Document contains less than 1 kilobyte of semantic information.

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a830905d19c1b1a262f5b6484dcbf74166b52e6742b363f5049fa03cec849557/

Threat name:

Document-Excel.Trojan.SuspectMacro

Status:

Malicious

First seen:

2021-12-22 19:18:11 UTC

File Type:

Document

Extracted files:

AV detection:

21 of 43 (48.84%)

Threat level:

5/5

Result

Malware family:

emotet

Score:

10/10

Tags:

family:emotet botnet:epoch4 banker macro suricata trojan xlm

Link:

https://tria.ge/reports/211222-xzy19sgfhm/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

Drops file in System32 directory

Loads dropped DLL

Blocklisted process makes network request

Downloads MZ/PE file

Emotet

Process spawned unexpected child process

suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)

suricata: ET MALWARE W32/Emotet CnC Beacon 3

Malware Config

C2 Extraction:

54.37.212.235:80
45.15.23.184:443
41.76.108.46:8080
212.237.5.209:443
46.55.222.11:443
207.38.84.195:8080
103.8.26.102:8080
138.185.72.26:8080
104.251.214.46:8080
110.232.117.186:8080
51.68.175.8:8080
176.104.106.96:8080
216.158.226.206:443
103.8.26.103:8080
103.75.201.2:443
210.57.217.132:8080
195.154.133.20:443
45.142.114.231:8080
107.182.225.142:8080
158.69.222.101:443
45.118.115.99:8080
192.254.71.210:443
178.79.147.66:8080
203.114.109.124:443
212.237.56.116:7080
173.212.193.249:8080
58.227.42.236:80
50.116.54.215:443
162.214.50.39:7080
45.118.135.203:7080
212.237.17.99:8080
81.0.236.90:443

Dropper Extraction:

http://87.251.86.178/pp/oo.html
http://87.251.86.178/pp/PP.PNG

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/a830905d19c1b1a262f5b6484dcbf74166b52e6742b363f5049fa03cec849557

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:	Excel_Hidden_Macro_Sheet Create hunting rule

Rule name:	Excel_Hidden_Macro_Sheet Create hunting rule

Rule name:	INDICATOR_DOC_PhishingPatterns Create hunting rule
Author:	ditekSHen
Description:	Detects OLE, RTF, PDF and OOXML (decompressed) documents with common phishing strings

Rule name:	SUSP_EnableContent_String_Gen Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious string that asks to enable active content in Office Doc
Reference:	Internal Research

Rule name:	SUSP_EnableContent_String_Gen_RID322C Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious string that asks to enable active content in Office Doc
Reference:	Internal Research