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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4fa86fa26d68bb184e177258eea007d898741014f9e0390f2f095784301532bf. 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: 6


Intelligence 6 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4fa86fa26d68bb184e177258eea007d898741014f9e0390f2f095784301532bf
SHA3-384 hash: 0cb215189f36022ce18678d0bf2c16312723d3d5e8112b9144e61191699e0f5ed19b3ef7d0c99a3ba4b188f0bc6d4228
SHA1 hash: 0d8d90e58f6b431ea3ce65dc65274b4787badab4
MD5 hash: c8626e99f25b361049e0fab923161d91
humanhash: mirror-twelve-sink-high
File name:case (850).xls
Download: download sample
Signature ZLoader
Create hunting rule
File size:156'709 bytes
First seen:2021-01-23 05:27:31 UTC
Last seen:2021-01-23 06:57:00 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 3072:xppdLdTb2doqmdPc2drdY0d6fAsls68LK:xppZdb2Fmlc2hBcfAsls6N
TLSH 6BE32A764802E025C6D9EFF9AE08EC243692156D8E3BC9DAD1D23A7B3052F4CB750F95
Reporter cocaman
Tags:xls ZLoader


Avatar
cocaman
Malicious email (T1566.001)
From: ""John D. Neubauer" <support@decawe.com>" (likely spoofed)
Received: "from decawe.com (decawe.com [45.84.179.3]) "
Date: "Sat, 23 Jan 2021 05:09:18 +0000"
Subject: "Invoicing info#71595"
Attachment: "case (850).xls"

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
Application name is Microsoft Excel
Office document is in OLE format
Office document is in encrypted
OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
3145744 bytesBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
424
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
case (850).xls
Verdict:
Malicious activity
Analysis date:
2021-01-23 05:28:57 UTC
Tags:
macros
Link:
https://app.any.run/tasks/d05714ad-0159-4948-b106-dfa24dda0fe2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Detection(s):
Twinwave.EvilDoc.Excel4Biff5PassProtectedBookBurnInHell.20201202.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
File Type:
Legacy Office File
Link:
https://app.docguard.net/4fa86fa26d68bb184e177258eea007d898741014f9e0390f2f095784301532bf/results/dashboard
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/588803
Signature
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Multi AV Scanner detection for domain / URL
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/4fa86fa26d68bb184e177258eea007d898741014f9e0390f2f095784301532bf/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6ug7itnnc5rqtqxojmo5iah3cmhieau7hqdsdzpbflyimavgk7q._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
ransomware
Link:
https://tria.ge/reports/210123-tadfxwb4q2/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates physical storage devices
Process spawned unexpected child process
Malware Config
Dropper Extraction:
https://fortnitehecks.com/kev/xeda.dll
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/4fa86fa26d68bb184e177258eea007d898741014f9e0390f2f095784301532bf

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

ZLoader

Excel file xls 4fa86fa26d68bb184e177258eea007d898741014f9e0390f2f095784301532bf

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments