MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81a8b1c4a242da766e6496ee0d3a4f43f5bb2cdbec9ffa4bc68d1296c20cc267. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81a8b1c4a242da766e6496ee0d3a4f43f5bb2cdbec9ffa4bc68d1296c20cc267
SHA3-384 hash: 008d52f4b0c82dd78787f88a00f6bfcb5be02e62e1f26e64bacc724e918721a0ff485c9f61da5ceaca25ff6ee0c16d30
SHA1 hash: 0cd007398e57145c35bfb438c625b8ddac4b20ab
MD5 hash: ed17d97f91ffda0f0fd9ce542155aae8
humanhash: bacon-floor-lithium-one
File name:HDFC TT PAYMENT BY PSBIOGAS 43283.xlsx
Download: download sample
File size:1'479'168 bytes
First seen:2021-05-25 12:46:53 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 24576:2erIyGkNHSx0qdRxz24b2F9xd/41bJ1/8ZIkstUz9G/8/vDJhXeJd+:lIy1Ny7dH0hAbJhLq9G/8/TAd
TLSH 9A65339CFE830F6BD86E17B101EBC9616038BCD5A358458677297B0364BB3215BCB25E
Reporter abuse_ch
Tags:CVE-2017-11882 VelvetSweatshop 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
3208 bytesDataSpaces/TransformInfo/StrongEncryptionTransform/Primary
476 bytesDataSpaces/Version
51448472 bytesEncryptedPackage
6224 bytesEncryptionInfo

Intelligence

File Origin
# of uploads :
1
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Barnote Ref 7736562.xlsx
Verdict:
No threats detected
Analysis date:
2021-05-25 16:23:59 UTC
Tags:
encrypted
Link:
https://app.any.run/tasks/693e3a39-eabb-4265-a0bb-3e3a70a1968e

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
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/161905/
Detection(s):
PUA.Doc.Packed.EncryptedDoc-6563700-0
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Launching a process
DNS request
Sending an HTTP GET request
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Embedding Objects in Encrypted Excel File
Link:
https://app.docguard.net/81a8b1c4a242da766e6496ee0d3a4f43f5bb2cdbec9ffa4bc68d1296c20cc267/results/dashboard
Document image
Image:
Download PNG
Document image
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/81a8b1c4a242da766e6496ee0d3a4f43f5bb2cdbec9ffa4bc68d1296c20cc267
Details
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/791904
Signature
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: EQNEDT32.EXE connecting to internet
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81a8b1c4a242da766e6496ee0d3a4f43f5bb2cdbec9ffa4bc68d1296c20cc267/
Threat name:
Document-OLE.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2021-05-25 08:07:05 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qguldrfcilnhm3tes3xa2ospip23wlg35sp7us6grujjnqqmyjtq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/210525-mqpel8k4qn/
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
Blocklisted process makes network request
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/81a8b1c4a242da766e6496ee0d3a4f43f5bb2cdbec9ffa4bc68d1296c20cc267

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

Excel file xlsx 81a8b1c4a242da766e6496ee0d3a4f43f5bb2cdbec9ffa4bc68d1296c20cc267

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1278799/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/161905/

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