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 dump

MalwareBazaar was able to identify 8 sections in this file using oledump:

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

BitDam Malicious

Verdict:

Malicious

File type:

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

Has a screenshot:

False

Contains macros:

True

CAPE Sandbox

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/264369/

ClamAV Detected

Detection(s):

TwinWave.EvilDoc.GreenSlantPicturesOfU.XL.220404.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.PublicDottedQuadDLrRunLikeHell.20210223.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.CertUtilFadeAway.20220102.UNOFFICIAL

Alert

Create hunting rule

Xls.Dropper.EPPlus-9802867-2

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

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

Creating a file

Creating a process from a recently created file

Running batch commands

Unauthorized injection to a recently created process

Running batch commands by exploiting the app vulnerability

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

Excel File with Macro

Link:

https://app.docguard.net/3ff1a435a0ca5ff3346ef2663f83d8c472687078c2d20c0a567aefe91006ee10/results/dashboard

Payload URLs

URL

File name

http://49.12.244.154/fs-1d/wd/loader/uploads/QTN01000037522.bat

ThisWorkbook

Document image

Image:

Download PNG

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

certutil certutil.exe cmd macros macros-on-open

Link:

https://www.filescan.io/uploads/625d8667eab80a7a6c393830/reports/d2ba8d7a-150d-4644-a54d-cc58935e3705/overview

inlyse Malware.AI Malicious

Label:

Malicious

Suspicious Score:

9.9/10

Score Malicious:

1%

Score Benign:

0%

Link:

https://www.malware.ai/gui/files/?id=1e3f585f-7205-49cf-90bd-1529d915dcb7

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/3ff1a435a0ca5ff3346ef2663f83d8c472687078c2d20c0a567aefe91006ee10

Details

Macro with Startup Hook

Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.

IPv4 Dotted Quad URL

A URL was detected referencing a direct IP address, as opposed to a domain name.

Macro Execution Coercion

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

Macro Contains Suspicious String

Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...

InQuest Machine Learning

An InQuest machine-learning model classified this macro as potentially malicious.

Document With No Content

Document contains little or no semantic information.

Joe Sandbox AgentTesla

Result

Threat name:

AgentTesla

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/978299

Signature

.NET source code contains very large array initializations

Antivirus detection for URL or domain

Creates multiple autostart registry keys

Document contains an embedded VBA macro which may execute processes

Document exploit detected (process start blacklist hit)

Drops PE files to the document folder of the user

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

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

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

Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)

Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)

Sigma detected: Microsoft Office Product Spawning Windows Shell

Sigma detected: Suspicious Certutil Command

Sigma detected: Windows Shell File Write to Suspicious Folder

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

System process connects to network (likely due to code injection or exploit)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal ftp login credentials

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Writes to foreign memory regions

Yara detected AgentTesla

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3ff1a435a0ca5ff3346ef2663f83d8c472687078c2d20c0a567aefe91006ee10/

ReversingLabs TitaniumCloud Script-Macro.Downloader.Powdow

Threat name:

Script-Macro.Downloader.Powdow

Alert

Create hunting rule

Status:

Malicious

First seen:

2022-04-18 11:16:48 UTC

File Type:

Document

Extracted files:

26

AV detection:

16 of 25 (64.00%)

Threat level:

  3/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=h7y2innazjp7gndo6jtd7a6yyrzgq4dyyljaycswplx6seag5yia._file

Hatching Triage agenttesla

Result

Malware family:

agenttesla

Alert

Create hunting rule

Score:

  10/10

Tags:

family:agenttesla collection keylogger persistence spyware stealer trojan

Link:

https://tria.ge/reports/220418-s3715adghk/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

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 SetWindowsHookEx

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Office loads VBA resources, possible macro or embedded object present

Enumerates physical storage devices

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Adds Run key to start application

Loads dropped DLL

Downloads MZ/PE file

Executes dropped EXE

AgentTesla

Process spawned unexpected child process

Malware Config

C2 Extraction:

http://31.210.20.150/rom/inc/d5733fcf29771b.php

VMRay AgentTesla.v3

Malware family:

AgentTesla.v3

Alert

Create hunting rule

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/3ff1a435a0ca/report/overview.html

VirusTotal

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

YOROI YOMI Malicious File

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/3ff1a435a0ca5ff3346ef2663f83d8c472687078c2d20c0a567aefe91006ee10

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.

  

URLhaus

https://urlhaus.abuse.ch/host/49.12.244.154/

  

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/264369/

Comments