MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85ac52fb1a85659b8aa0ee82a62720f55e2d3731870927ab82539bdd7c3908fa. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Threat unknown


Vendor detections: 6


Intelligence 6 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 85ac52fb1a85659b8aa0ee82a62720f55e2d3731870927ab82539bdd7c3908fa
SHA3-384 hash: dfae40724ec7ef88ec907ff2f57ac2cc86531d30d6f125e726269cbc23de6d2e4b96b102079a1386a64f25566d21285b
SHA1 hash: 49c13b3fb77c9ce36c7c150e479dac073f0e164d
MD5 hash: 9e471c6c4f44270b058b9992af69cd78
humanhash: triple-batman-lemon-cardinal
File name:Order list.xls
Download: download sample
File size:35'328 bytes
First seen:2020-10-20 08:53:56 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 768:6Iikd4pxEtjPOtioVjDGUU1qfDlaGGx+cL2QnAKDlxcpanRNRL91zUt8SbssLm:tOxEtjPOtioVjDGUU1qfDlaGGx+cL2Q8
TLSH BEF2409272869D4ACB54077008E6DBE6A727FC215E62834B3285F72E2F75B80CE03757
Reporter abuse_ch
Tags:xls


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: ip87.mesra.my
Sending IP: 202.75.41.87
From: Calibration Lab <service@bct.com.my>
Subject: Re: purchase order
Attachment: Order list.xls

Unknown payload URL:
https://u.teknik.io/oRnzE.msi

Intelligence

File Origin
# of uploads :
1
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching a process by exploiting the app vulnerability
Enabling autorun by creating a file
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/497423
Signature
Antivirus / Scanner detection for submitted sample
Document contains an embedded VBA with many randomly named variables
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
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/85ac52fb1a85659b8aa0ee82a62720f55e2d3731870927ab82539bdd7c3908fa/
Threat name:
Document-Office.Downloader.Donoff
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 00:28:41 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qwwff6y2qvszxcva52bkmjza6vpc2nzrq4espk4ckon527bzbd5a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence
Link:
https://tria.ge/reports/201020-mbhy6hlybn/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Adds Run key to start application
Enumerates connected drives
Drops startup file
Use of msiexec (install) with remote resource
Blacklisted process makes network request
Executes dropped EXE
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/85ac52fb1a85659b8aa0ee82a62720f55e2d3731870927ab82539bdd7c3908fa

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.

Rule name:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:SUSP_EnableContent_String_Gen
Create hunting rule
Author:Florian Roth
Description:Detects suspicious string that asks to enable active content in Office Doc
Reference:Internal Research
Rule name:SUSP_Office_Dropper_Strings
Create hunting rule
Author:Florian Roth
Description:Detects Office droppers that include a notice to enable active content
Reference:Internal Research
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Excel file xls 85ac52fb1a85659b8aa0ee82a62720f55e2d3731870927ab82539bdd7c3908fa

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/722557/
  
Delivery method
Distributed via e-mail attachment

Comments