MalwareBazaar Database

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 13 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

ClamAV Detected

Detection(s):

TwinWave.EvilDoc.AutoTriggerEvilMrFantasyM1.20200716.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.AutoTriggerEvilMrFantasyM3.20200721.UNOFFICIAL

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

DNS request

Sending an HTTP GET request

Creating a file in the %AppData% directory

Creating a process from a recently created file

Using the Windows Management Instrumentation requests

Unauthorized injection to a recently created process by context flags manipulation

Running batch commands by exploiting the app vulnerability

Launching a file downloaded from the Internet

DocGuard Suspicious

Result

Verdict:

Suspicious

File Type:

Excel File with Macro

Link:

https://app.docguard.net/3346dbacdf7e0f240dd2ed2f99af41e4106e10039f096a8142fed178c4413fd9/results/dashboard

Document image

Image:

Download PNG

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/572296

Signature

.NET source code contains very large array initializations

.NET source code contains very large strings

Antivirus detection for URL or domain

Document contains an embedded VBA macro with suspicious strings

Document contains an embedded VBA with hexadecimal encoded strings

Document exploit detected (process start blacklist hit)

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

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

Powershell drops PE file

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: Powershell download file and shellexecute

Suspicious powershell command line found

Tries to download and execute files (via powershell)

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

Tries to harvest and steal ftp login credentials

Tries to steal Mail credentials (via file access)

Yara detected AgentTesla

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3346dbacdf7e0f240dd2ed2f99af41e4106e10039f096a8142fed178c4413fd9/

ReversingLabs TitaniumCloud Script.Trojan.Wacatac

Threat name:

Script.Trojan.Wacatac

Alert

Create hunting rule

Status:

Malicious

First seen:

2020-12-30 18:14:05 UTC

AV detection:

9 of 48 (18.75%)

Threat level:

  5/5

Spamhaus Hash Blocklist Malicious file

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=gndnxlg7pyhsidos5uxztl2b4qig4eadt4ewvakc73ixrrcbh7mq._file

Hatching Triage agenttesla

Result

Malware family:

agenttesla

Alert

Create hunting rule

Score:

  10/10

Tags:

family:agenttesla keylogger spyware stealer trojan

Link:

https://tria.ge/reports/201230-14cw4c845e/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious use of FindShellTrayWindow

Office loads VBA resources, possible macro or embedded object present

Suspicious use of SetThreadContext

Loads dropped DLL

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Blocklisted process makes network request

Executes dropped EXE

AgentTesla

Process spawned unexpected child process

Malware Config

Dropper Extraction:

http://gods.brernbanarolle.com/host/food.exe

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/3346dbacdf7e0f240dd2ed2f99af41e4106e10039f096a8142fed178c4413fd9

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.

Comments