MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d. 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


BazaLoader


Vendor detections: 5


Maldoc score: 3


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

SHA256 hash: 75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d
SHA3-384 hash: 3d6ae9d2a1ad91f948f508f8506f79a4e4789125246ed35b24a8cc3342f35d9ce9fd024ca3b4a1a08926203b7714f0ba
SHA1 hash: 5aa83ebd66a6848cf368149fb01f520852d7f8ec
MD5 hash: add386c35e2abd1d17bb776a7a69e2d0
humanhash: two-king-snake-nine
File name:request_form_1612290674.xls
Download: download sample
Signature BazaLoader
Create hunting rule
File size:204'288 bytes
First seen:2021-02-02 18:49:16 UTC
Last seen:2021-02-02 20:27:07 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 3072:DWqrta2oUW81f3sHP0gznm3VaYnwzEDulTmaW205KAgC5PMx4XWsIhC6Z2vsK:nrZ3sHQFrwzEalCaTw5K4XWsmCnsK
TLSH FE141234F42AD8D2E7667E7B38431E52834DCCAA53ED3649C623FBC045B468E875A18D
Reporter ffforward
Tags:BazaLoader BazarBackdoor BazarCall BazarLoader kegtap 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
Maldoc score: 3
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
3192747 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
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
2
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d.zip
Verdict:
No threats detected
Analysis date:
2021-02-02 19:10:46 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3aac9abe-71e5-4788-a46b-828133ed8776

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):
SecuriteInfo.com.UDS.DangerousObject.Multi.Generic.10416.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Result
Verdict:
Suspicious
File Type:
Legacy Office File
Link:
https://app.docguard.net/75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d/results/dashboard
Result
Verdict:
SUSPICIOUS
Details
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/597108
Signature
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (UrlDownloadToFile)
Machine Learning detection for dropped file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d/
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro xlm
Link:
https://tria.ge/reports/210202-q64pjhw8a2/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes dropped EXE
Malware Config
Dropper Extraction:
https://cacla2006.org/achlom/hamin.php
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.36
Link:
https://yomi.yoroi.company/submissions/75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d

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.

Web download

BazaLoader

Excel file xls 75de7712c3817911df0973c769c348f24593b996b513c1550260626e69a8a99d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/988264/

Comments