MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da8b8f45b6446e84e539e1f6244d7b03dc822cf5649e0e8602f6e32cfc41597f. 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: 5


Intelligence 5 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: da8b8f45b6446e84e539e1f6244d7b03dc822cf5649e0e8602f6e32cfc41597f
SHA3-384 hash: 9a8aba95edc280cd51a8e7d404e97e079a6dac09e4b2a0630cf4e2fc0d2b38cd10c228df0e13e324aaa9ea02df92b619
SHA1 hash: b32d08122ac0db4a8cdf23fc78ce660e09f5abed
MD5 hash: a774b50069d0f7d4f9402dc4429cf57c
humanhash: march-ten-william-nuts
File name:c2.xlsm
Download: download sample
File size:400'628 bytes
First seen:2020-10-26 14:42:14 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 12288:DYeFTHhUvVobTgNh4154M3yuTX8Jr3XqpEiVDax:DRjZQ41abYMJTapjy
TLSH C984121AF671E58CEE9B50B0DAF46EE5636CCE13C0EE3D928937A38C7A1536211114DE
Reporter abuse_ch
Tags:xlsm Yahoo


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: sonic308-17.consmr.mail.ir2.yahoo.com
Sending IP: 77.238.178.145
From: Rose Maduna <rose@purequestair.co.za>
Subject: Please Quote
Attachment: c2.xlsm

Unknown payload URL:
https://u.teknik.io/2z9cN.txt

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Sending an HTTP GET request
Deleting a recently created file
Creating a window
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Bypassing of proactive protection methods using Windows Management Instrumentation (WMI)
Launching a process by exploiting the app vulnerability
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/512013
Signature
Creates processes via WMI
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA with base64 encoded strings
Document contains an embedded VBA with hexadecimal encoded strings
Document contains an embedded VBA with many randomly named variables
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Obfuscated command line found
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Powershell drops PE file
Suspicious powershell command line found
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/da8b8f45b6446e84e539e1f6244d7b03dc822cf5649e0e8602f6e32cfc41597f/
Threat name:
Script.Trojan.EmoDldr
Create hunting rule
Status:
Malicious
First seen:
2020-10-26 06:51:27 UTC
AV detection:
11 of 48 (22.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3kfy6rnwirxijzjz4h3citl3apoielhvmspa5bqc63rsz7cblf7q._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/201026-mdfz2c57hs/
Behaviour
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
Checks processor information in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in System32 directory
JavaScript code in executable
Looks up external IP address via web service
Loads dropped DLL
Blacklisted process makes network request
Executes dropped EXE
Process spawned unexpected child process
Malware Config
Dropper Extraction:
https://u.teknik.io/2z9cN.txt
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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 xlsm da8b8f45b6446e84e539e1f6244d7b03dc822cf5649e0e8602f6e32cfc41597f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/752052/
  
Delivery method
Distributed via e-mail attachment

Comments