MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ba1b3295e0e59d28cbbc33b2365898fd2d87697fcdbb36ea4f040ce9901b451b. 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


Maldoc score: 3


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

SHA256 hash: ba1b3295e0e59d28cbbc33b2365898fd2d87697fcdbb36ea4f040ce9901b451b
SHA3-384 hash: 445b05e05c05b3453009d3c7b9b9a612f50b19a5bdee6eeea37a4a01099ae2a4eccab250b504bef27dd633f98f9fc108
SHA1 hash: 6828474875bb7dd930427cfc29e7cef90d54d000
MD5 hash: 4a0409b21aa2c2de61386ea149f50d38
humanhash: queen-yellow-black-lithium
File name:invoice1141.xls
Download: download sample
Signature ZLoader
Create hunting rule
File size:36'864 bytes
First seen:2020-11-25 16:56:33 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 768:lPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJccCctyWUZZug0IR:Nok3hbdlylKsgqopeJBWhZFGkE+cL2NV
TLSH F2F295E3B785EE65CE48833D485B4295A712EC51ABAB838B3345F7293F71BE08D06147
Reporter ffforward
Tags:xls 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
Maldoc score: 3
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
327062 bytesWorkbook
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecAuto_OpenRuns when the Excel Workbook is opened
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
1
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Deleting a recently created file
Possible injection to a system process
Launching a process by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
MALICIOUS
Details
Excel 4.0 Macro
Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ba1b3295e0e59d28cbbc33b2365898fd2d87697fcdbb36ea4f040ce9901b451b/
Threat name:
Document-Excel.Trojan.ZLoader
Create hunting rule
Status:
Malicious
First seen:
2020-11-25 16:57:34 UTC
File Type:
Document
Extracted files:
8
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xintffpa4wosrs54gozdmwey7uwyo2l7zw5tn2spaqgotea3iunq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro
Link:
https://tria.ge/reports/201125-n2e6bpp796/
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/ba1b3295e0e59d28cbbc33b2365898fd2d87697fcdbb36ea4f040ce9901b451b

File information

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

Malspam

ZLoader

Excel file xls ba1b3295e0e59d28cbbc33b2365898fd2d87697fcdbb36ea4f040ce9901b451b

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments