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 6 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:

AWB783079370872.docm

Verdict:

Malicious activity

Analysis date:

2021-02-19 15:34:09 UTC

Tags:

macros macros-on-open generated-doc

Link:

https://app.any.run/tasks/e9691cde-bf54-44f5-8ef0-40f40aa2bec2

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-word.document.macroEnabled.12

Has a screenshot:

False

Contains macros:

True

ClamAV Detected

Detection(s):

TwinWave.EvilDoc.StopCryingYourHeartOut.20210216.UNOFFICIAL

Alert

Create hunting rule

TwinWave.EvilDoc.WhatItSoundsLikeWhenEncodersCry.20210216.UNOFFICIAL

Alert

Create hunting rule

Dr. Web vxCube Malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Launching a process

DNS request

Sending a custom TCP request

Running batch commands by exploiting the app vulnerability

DocGuard Suspicious

Result

Verdict:

Suspicious

File Type:

Word File with Macro

Link:

https://app.docguard.net/90d6d22bb3a17944aa7cfb0810b5f70fecee0edbb1c48f263bdcc9bd93e342d4/results/dashboard

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.

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...

Joe Sandbox malicious

Result

Threat name:

Unknown

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/612598

Signature

Adds a directory exclusion to Windows Defender

Binary contains a suspicious time stamp

Creates an autostart registry key pointing to binary in C:\Windows

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 many string operations indicating source code obfuscation

Document exploit detected (process start blacklist hit)

Drops executables to the windows directory (C:\Windows) and starts them

Drops PE files with benign system names

Encrypted powershell cmdline option found

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)

Potential dropper URLs found in powershell memory

Powershell drops PE file

Sigma detected: Microsoft Office Product Spawning Windows Shell

Sigma detected: Suspicious Svchost Process

Sigma detected: System File Execution Location Anomaly

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/90d6d22bb3a17944aa7cfb0810b5f70fecee0edbb1c48f263bdcc9bd93e342d4/

ReversingLabs TitaniumCloud Win32.Dropper.Generic

Threat name:

Win32.Dropper.Generic

Alert

Create hunting rule

Status:

Suspicious

First seen:

2021-02-19 10:48:11 UTC

AV detection:

5 of 46 (10.87%)

Threat level:

  3/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=sdlnek5tuf4ujkt47mebbnpxb7wo4dw3whci6jr33te33e7dilka._file

Hatching Triage Malicious

Result

Malware family:

n/a

Score:

  10/10

Tags:

evasion macro trojan

Link:

https://tria.ge/reports/210219-erf542tatn/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

System policy modification

Office loads VBA resources, possible macro or embedded object present

Enumerates physical storage devices

Drops file in Windows directory

Checks whether UAC is enabled

Windows security modification

Blocklisted process makes network request

Executes dropped EXE

Nirsoft

Process spawned unexpected child process

Turns off Windows Defender SpyNet reporting

UAC bypass

Windows security bypass

Malware Config

Dropper Extraction:

https://cutt.ly/ilwWBQL

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/90d6d22bb3a17944aa7cfb0810b5f70fecee0edbb1c48f263bdcc9bd93e342d4

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