MalwareBazaar Database

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

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

OLE vba

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

Intelligence

File Origin

Vendor Threat Intelligence

ANY.RUN

Malware family:

n/a

ID:

1

File name:

Document115607455303242021Copy.xlsm

Verdict:

No threats detected

Analysis date:

2021-03-24 21:20:30 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/509f0f2c-67e2-49eb-9fe2-6548185d1b0b

Note:

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

BitDam Malicious

Verdict:

Malicious

File type:

application/vnd.ms-excel.sheet.macroEnabled.12

Has a screenshot:

False

Contains macros:

True

ClamAV Detected

Detection(s):

TwinWave.EvilDoc.EnjoyTheSilence.20210317.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.EnjoyTheSilence.M2.20210317.UNOFFICIAL

Alert

Create hunting rule

SecuriteInfo.com.Office.Macro-3.UNOFFICIAL

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

Sending an HTTP GET request

Launching a process by exploiting the app vulnerability

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

OOXML Excel File with Excel4Macro

Link:

https://app.docguard.net/71b5cb9661a0a751c8375df0a310c99982deda0c0e7a75b88fd1f623487c6701/results/dashboard

Document image

Image:

Download PNG

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/71b5cb9661a0a751c8375df0a310c99982deda0c0e7a75b88fd1f623487c6701

Details

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.

Anomalous Macrosheet Path

Microsoft Excel spreadsheet references a macrosheet with a non-standard path. A potentially evasive tactic.

Document With No Content

Document contains little or no semantic information.

Joe Sandbox Hidden Macro 4.0

Result

Threat name:

Hidden Macro 4.0

Alert

Create hunting rule

Detection:

malicious

Classification:

expl.evad

Score:

68 / 100

Link:

https://www.joesandbox.com/analysis/652658

Signature

Document exploit detected (process start blacklist hit)

Document exploit detected (UrlDownloadToFile)

Found abnormal large hidden Excel 4.0 Macro sheet

Found Excel 4.0 Macro with suspicious formulas

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

Sigma detected: Microsoft Office Product Spawning Windows Shell

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/71b5cb9661a0a751c8375df0a310c99982deda0c0e7a75b88fd1f623487c6701/

Spamhaus Hash Blocklist Malicious file

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=og24xftbuctvdsbxlxykgegjtgbn5wqmbz5hloep2h3cgsd4m4aq._file

Hatching Triage Malicious

Result

Malware family:

n/a

Score:

  10/10

Tags:

macro xlm

Link:

https://tria.ge/reports/210324-4c121jcaxx/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Process spawned unexpected child process

Malware Config

Dropper Extraction:

http://188.127.227.173/44279.742787963.dat
http://45.150.67.226/44279.742787963.dat
http://195.123.208.140/44279.742787963.dat

VirusTotal

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

YOROI YOMI Suspicious File

Threat name:

Suspicious File

Score:

0.40

Link:

https://yomi.yoroi.company/submissions/71b5cb9661a0a751c8375df0a310c99982deda0c0e7a75b88fd1f623487c6701

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.

File information

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

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