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 7 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/msword

Has a screenshot:

False

Contains macros:

True

ClamAV Detected

Detection(s):

MiscreantPunch.EvilMacro.PSHELLNEWOBJECTw.3.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.NEW-OBJECT.200322B64.3.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.NEW_OBJECT.200630B64.3.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.HTTP_.210304B64.8.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 %temp% directory

Creating a process from a recently created file

Creating a file in the %AppData% directory

Launching a process

Deleting a recently created file

Unauthorized injection to a recently created process by context flags manipulation

Launching a process by exploiting the app vulnerability

Enabling autorun by creating a file

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

Word File with Macro

Link:

https://app.docguard.net/729be186b438461299393d8348a836569d3bcac48df1bd5ebef25cdf1b908ecb/results/dashboard

Document image

Image:

Download PNG

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/729be186b438461299393d8348a836569d3bcac48df1bd5ebef25cdf1b908ecb

Details

Base64 Encoded Powershell Directives

Detected one or more base64 encoded Powershell directives.

Macro with Startup Hook

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

Downloads Executable

Detected a macro that appears to download an executable.

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...

Base64 Encoded URL

Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.

Joe Sandbox AsyncRAT

Result

Threat name:

AsyncRAT

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/799369

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

.NET source code contains very large strings

Document contains an embedded VBA macro which may execute processes

Document contains an embedded VBA macro with suspicious strings

Document contains an embedded VBA with base64 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

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)

Powershell drops PE file

Sigma detected: Microsoft Office Product Spawning Windows Shell

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

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

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

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AntiVM3

Yara detected AsyncRAT

Yara detected Costura Assembly Loader

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/729be186b438461299393d8348a836569d3bcac48df1bd5ebef25cdf1b908ecb/

ReversingLabs TitaniumCloud Document-Office.Downloader.SLoad

Threat name:

Document-Office.Downloader.SLoad

Alert

Create hunting rule

Status:

Malicious

First seen:

2021-06-09 07:14:10 UTC

AV detection:

5 of 47 (10.64%)

Threat level:

  3/5

Spamhaus Hash Blocklist Malicious file

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=okn6dbvuhbdbfgjzhwburkbwk2otxswerxy32xv66jon6g4qr3fq._file

Hatching Triage asyncrat

Result

Malware family:

asyncrat

Alert

Create hunting rule

Score:

  10/10

Tags:

family:asyncrat macro rat spyware stealer

Link:

https://tria.ge/reports/210609-kg5s38ar2s/

Behaviour

Checks processor information in registry

Creates scheduled task(s)

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

Office loads VBA resources, possible macro or embedded object present

Enumerates physical storage devices

Drops file in Windows directory

Suspicious use of SetThreadContext

Loads dropped DLL

Reads user/profile data of web browsers

Blocklisted process makes network request

Downloads MZ/PE file

Executes dropped EXE

Async RAT payload

AsyncRat

Process spawned unexpected child process

Malware Config

C2 Extraction:

127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
127.0.0.1:3480
185.136.169.109:6606
185.136.169.109:7707
185.136.169.109:8808
185.136.169.109:3480

Dropper Extraction:

http://suyashcollegeofnursing.com/language/Don109/CryptedFile109.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/729be186b438461299393d8348a836569d3bcac48df1bd5ebef25cdf1b908ecb

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