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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a83e26c8d84a4ab396fa64f867b4928596c1dbb3a403df78a24825e6dd5ae2e. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a83e26c8d84a4ab396fa64f867b4928596c1dbb3a403df78a24825e6dd5ae2e
SHA3-384 hash: 48484bfae370d969fca004799294493fb859c28c173eb2b9c230eb489815bfc85b29289e666f75d2f9d2d6a6ebe33503
SHA1 hash: 007a46b6ed4a0997f3fb50bf6bed76abbdb1bcac
MD5 hash: ae19f3f037b8089521b0217de0a452be
humanhash: failed-cat-cat-florida
File name:SecuriteInfo.com.Heur.13703.23315
Download: download sample
Signature ZLoader
Create hunting rule
File size:54'272 bytes
First seen:2020-11-19 20:13:12 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 1536:zok3hbdlylKsgqopeJBWhZFGkE+cL2NdAAyN+BCkIY80D3K3HS0r:zok3hbdlylKsgqopeJBWhZFGkE+cL2NK
TLSH 5C33D8F7BD89E999CE4C8739180B46D46722EC41979BD787B702FA3D3F316A0490648B
Reporter SecuriteInfoCom
Tags:ZLoader

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
OLE dump

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

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
344184 bytesWorkbook

Intelligence

File Origin
# of uploads :
1
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Deleting a recently created file
Creating a process with a hidden window
Searching for the window
Launching a process by exploiting the app vulnerability
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/543469
Signature
Document exploit detected (process start blacklist hit)
Injects code into the Windows Explorer (explorer.exe)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 320831 Sample: SecuriteInfo.com.Heur.13703.23315 Startdate: 19/11/2020 Architecture: WINDOWS Score: 56 15 Multi AV Scanner detection for submitted file 2->15 6 EXCEL.EXE 59 25 2->6         started        9 explorer.exe 2->9         started        process3 signatures4 17 Injects code into the Windows Explorer (explorer.exe) 6->17 19 Document exploit detected (process start blacklist hit) 6->19 11 explorer.exe 6->11         started        13 cmd.exe 9->13         started        process5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a83e26c8d84a4ab396fa64f867b4928596c1dbb3a403df78a24825e6dd5ae2e/
Threat name:
Document-Word.Trojan.ZLoader
Create hunting rule
Status:
Malicious
First seen:
2020-11-19 18:04:28 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jkb6e3enqsskwolpuzhym62jfbmwyhn3hjad354kesbf43ovvyxa._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro
Link:
https://tria.ge/reports/201119-f5sv28r5xj/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry key
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
ZLoader
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4a83e26c8d84a4ab396fa64f867b4928596c1dbb3a403df78a24825e6dd5ae2e

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:ach_ZLoader_xls_20201029
Create hunting rule
Author:abuse.ch
Description:Detects ZLoader XLS

File information

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

Comments