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 4 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:

b7a919bb30c1633483399356aedf42c11656c8a076be969e85b57ccdd071b879.zip

Verdict:

Malicious activity

Analysis date:

2021-01-08 06:16:07 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/eb7d2a0d-4304-460e-80de-2fb554ca5375

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

Has a screenshot:

False

Contains macros:

True

ClamAV Detected

Detection(s):

TwinWave.EvilDoc.XLSLOLBINHammerToFall.20201218.UNOFFICIAL

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

Running batch commands by exploiting the app vulnerability

DocGuard Malicious

Result

Verdict:

Malicious

File Type:

Legacy Office File

Link:

https://app.docguard.net/b7a919bb30c1633483399356aedf42c11656c8a076be969e85b57ccdd071b879/results/dashboard

Payload URLs

URL

File name

http://lankarecipes.com/Sparc.jp''

Macro1

Document image

Image:

Download PNG

InQuest MALICIOUS

Result

Verdict:

MALICIOUS

Details

Excel 4.0 Macro

Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.

Macro Execution Coercion

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

Hidden Powershell

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

Autostarting Excel Macro Sheet

Excel contains Macrosheet logic that will trigger automatically upon document open.

Document With No Content

Document contains little or no semantic information.

Joe Sandbox Hidden Macro 4.0 BitRAT

Result

Threat name:

Hidden Macro 4.0 BitRAT

Alert

Create hunting rule

Detection:

malicious

Classification:

expl.evad.troj

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/576472

Signature

Antivirus detection for dropped file

Contains functionality to create processes via WMI

Contains functionality to hide a thread from the debugger

Creates processes via WMI

Document exploit detected (process start blacklist hit)

Found Excel 4.0 Macro with suspicious formulas

Hides threads from debuggers

Machine Learning detection for dropped file

Maps a DLL or memory area into another process

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 case anomaly found

Powershell drops PE file

Sigma detected: Dot net compiler compiles file from suspicious location

Sigma detected: Microsoft Office Product Spawning Windows Shell

Sigma detected: Suspicious Csc.exe Source File Folder

Yara detected BitRAT

Behaviour

Behavior Graph:

Download SVG

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b7a919bb30c1633483399356aedf42c11656c8a076be969e85b57ccdd071b879/

ReversingLabs TitaniumCloud Document-Word.Trojan.Heuristic

Threat name:

Document-Word.Trojan.Heuristic

Alert

Create hunting rule

Status:

Malicious

First seen:

2021-01-07 22:16:58 UTC

AV detection:

7 of 46 (15.22%)

Threat level:

  2/5

Spamhaus Hash Blocklist Malicious file

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=w6urtozqyfrtjazzsnlk5x2cyelfnsfao27jnhufwv6m3udrxb4q._file

Hatching Triage Malicious

Result

Malware family:

n/a

Score:

  10/10

Tags:

macro upx

Link:

https://tria.ge/reports/210108-3nqfmtm5sa/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious use of FindShellTrayWindow

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Loads dropped DLL

Blocklisted process makes network request

Executes dropped EXE

UPX packed file

Process spawned unexpected child process

VirusTotal

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

YOROI YOMI Trojan

Threat name:

Trojan

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b7a919bb30c1633483399356aedf42c11656c8a076be969e85b57ccdd071b879

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