MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21c4c697c6cba3d1d7f5ae5d768bf0c1d716eccc4479b338f2cf1336cf06b8ad. 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



Threat unknown


Vendor detections: 10


Intelligence 10 IOCs YARA 5 File information Comments

SHA256 hash: 21c4c697c6cba3d1d7f5ae5d768bf0c1d716eccc4479b338f2cf1336cf06b8ad
SHA3-384 hash: 4a06d378262e0630fe5732b6cc0e4fa1a4e90301914407e6084735b0948899868d64cdbbfbb45e0ef91282b188e8d42b
SHA1 hash: 2b9ebc81763c5baa02fa6c0f4644ddfb52756bdb
MD5 hash: 7020cb54fd011508b0fe6696396c74d5
humanhash: snake-butter-grey-shade
File name:Lowes_Quotation_PN1092021.xlsx
Download: download sample
File size:2'231'808 bytes
First seen:2021-02-23 06:55:53 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 49152:iWWOcqWn7QG+vDoCXeYgXVyaflnjWNq+pSFM:icnG7pyXgFZljIq+pd
TLSH C8A53315BCC6AFCED22ED77280A2C31D0198CE8D1652D8427B54B527B532B7DBACB06D
Reporter abuse_ch
Tags:VelvetSweatshop xlsx


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: rz-medizintechnik.com
Sending IP: 185.29.11.66
From: CHIRAG MARCUS <chirag.m@lowes-ca.org>
Subject: New Quotation 2021
Attachment: Lowes_Quotation_PN1092021.xlsx

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 unknown
Office document is in OLE format
Office document is in encrypted
OLE dump
Detection: VelvetSweatshop

MalwareBazaar was able to identify 6 sections in this file using oledump:

Section IDSection sizeSection name
164 bytesDataSpaces/DataSpaceInfo/StrongEncryptionDataSpace
2112 bytesDataSpaces/DataSpaceMap
3200 bytesDataSpaces/TransformInfo/StrongEncryptionTransform/Primary
476 bytesDataSpaces/Version
52210296 bytesEncryptedPackage
6224 bytesEncryptionInfo

Intelligence


File Origin
# of uploads :
1
# of downloads :
63
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Lowes_Quotation_PN#1092021.xlsx
Verdict:
Malicious activity
Analysis date:
2021-02-23 18:41:52 UTC
Tags:
encrypted opendir

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
DNS request
Creating a file
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects in Encrypted Excel File
Payload URLs
URL
File name
http://www.day.com/dam/1.0
Microsoft_Office_Word_Macro-Enabled_Document1.docm
Document image
Document image
Result
Verdict:
MALICIOUS
Details
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
100 / 100
Signature
Drops PE files to the user root directory
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Program Location Process Starts
Behaviour
Behavior Graph:
Threat name:
Document-Office.Exploit.Heuristic
Status:
Malicious
First seen:
2021-02-23 05:35:33 UTC
AV detection:
9 of 47 (19.15%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
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

Excel file xlsx 21c4c697c6cba3d1d7f5ae5d768bf0c1d716eccc4479b338f2cf1336cf06b8ad

(this sample)

  
Delivery method
Distributed via e-mail attachment

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