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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a62d7f58353c21cdcacc0e1459970b8f7fcd70bc18edc5b2ace082a3c8690859. 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


ZLoader


Vendor detections: 5


Intelligence 5 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a62d7f58353c21cdcacc0e1459970b8f7fcd70bc18edc5b2ace082a3c8690859
SHA3-384 hash: 614b32cbe64ece1e3d2727e4f2d151c713c47da84aba4188d2d3781a785538269464ea45f9568ab1f1724b4148ea6987
SHA1 hash: 0d5731526444779d9aa8e994a66f1879b874f0df
MD5 hash: 8b3955774f9676ed7bda295770e7201a
humanhash: floor-green-yankee-nitrogen
File name:SBA credit.doc
Download: download sample
Signature ZLoader
Create hunting rule
File size:1'061'888 bytes
First seen:2020-10-06 05:49:03 UTC
Last seen:Never
File type:Word file doc
MIME type:application/msword
ssdeep 12288:U4GJ6RpD0y4oP2ObQm4ISGdkHAJ9qzTf60ScA7537ZZCnNpKtqOL1KZ5jKVjWgFa:PGSXr2Ocm7SCkHo9qf6FwnL2jQTsv
TLSH 1B357C117B9CC69AD6540B37C45987AAA3B32F57C86DB0CE31563F1FEA3ED1892034A4
Reporter abuse_ch
Tags:doc ZLoader


Avatar
abuse_ch
Malspam distributing ZLoader:

HELO: it-business.online
Sending IP: 188.130.138.200
From: Alicia Miller <info@it-business.online>
Reply-To: Alicia Miller <info@it-business.online>
Subject: SBA return request????
Attachment: SBA credit.doc

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/482307
Signature
Document contains an embedded macro with GUI obfuscation
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 base64 encoded strings
Document contains an embedded VBA with functions possibly related to ADO stream file operations
Document contains an embedded VBA with functions possibly related to WSH operations (process, registry, environment, or keystrokes)
Document contains an embedded VBA with many randomly named variables
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Machine Learning detection for sample
Microsoft Office drops suspicious files
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a62d7f58353c21cdcacc0e1459970b8f7fcd70bc18edc5b2ace082a3c8690859/
Threat name:
Document-Office.Downloader.Obfuser
Create hunting rule
Status:
Malicious
First seen:
2020-10-05 23:17:29 UTC
File Type:
Document
Extracted files:
25
AV detection:
12 of 47 (25.53%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uywx6wbvhqq43swmbykftfylr57424f4ddw4lmvm4cbkhsdjbbmq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201006-tjr1sex8zs/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a62d7f58353c21cdcacc0e1459970b8f7fcd70bc18edc5b2ace082a3c8690859

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:SUSP_Double_Base64_Encoded_Executable
Create hunting rule
Author:Florian Roth
Description:Detects an executable that has been encoded with base64 twice
Reference:https://twitter.com/TweeterCyber/status/1189073238803877889
Rule name:win_zloader_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

ZLoader

Word file doc a62d7f58353c21cdcacc0e1459970b8f7fcd70bc18edc5b2ace082a3c8690859

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments