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 14 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

ANY.RUN Malicious

Malware family:

n/a

ID:

1

File name:

Weekly Vacancy Status Report.xlsm

Verdict:

Malicious activity

Analysis date:

2021-03-04 15:31:51 UTC

Tags:

macros macros-on-open

Link:

https://app.any.run/tasks/7725131f-41f4-4e33-8b09-d858a0451a67

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

CAPE Sandbox

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/122300/

ClamAV Detected

Detection(s):

TwinWave.EvilDoc.AutoClobberHowSoonIsNow.20200707.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.SquiblyDoobyDOWhereAreYou.20200507.UNOFFICIAL

Alert

Create hunting rule

Win.Downloader.Regsvr32Unregister-6335678-1

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

Launching a process

DNS request

Sending an HTTP GET request

Sending a custom TCP request

Launching a process by exploiting the app vulnerability

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

Excel File with Macro

Link:

https://app.docguard.net/77d6239a1082b6dfc5ad9d1c07fcc9610ed933195067e112a0947cb8c149b5d5/results/dashboard

Payload URLs

URL

File name

http://lyncdiscover.2bunny.com/Autodiscover

vbaProject.bin

Document image

Image:

Download PNG

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Details

Macro with Startup Hook

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

Hidden Powershell

Detected a pivot to Powershell that utilizes commonly nefarious attributes such as '-windowstyle hidden'.

Powershell in Macro

Detected a macro that may utilize Powershell. Such pivots are commonly found in malware.

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.

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 malicious

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/628808

Signature

Document contains an embedded VBA macro with suspicious strings

Document exploit detected (process start blacklist hit)

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

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

Sigma detected: Regsvr32 Anomaly

Suspicious powershell command line found

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

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/77d6239a1082b6dfc5ad9d1c07fcc9610ed933195067e112a0947cb8c149b5d5/

ReversingLabs TitaniumCloud Script-Macro.Downloader.Donoff

Threat name:

Script-Macro.Downloader.Donoff

Alert

Create hunting rule

Status:

Malicious

First seen:

2021-03-04 15:43:05 UTC

File Type:

Document

Extracted files:

35

AV detection:

19 of 47 (40.43%)

Threat level:

  3/5

Hatching Triage Malicious

Result

Malware family:

n/a

Score:

  10/10

Tags:

macro

Link:

https://tria.ge/reports/210304-671eq1y6rn/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Office loads VBA resources, possible macro or embedded object present

Process spawned unexpected child process

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/77d6239a1082b6dfc5ad9d1c07fcc9610ed933195067e112a0947cb8c149b5d5

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.

  

Delivery method

Other

Cape

https://www.capesandbox.com/analysis/122300/

Comments