MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3ffc668b39a455b981aa7866e87d7a4af8bcb1899ab7e3b6ef7a9191be0ebbd. 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: 8


Maldoc score: 5


Intelligence 8 IOCs YARA 6 File information Comments

SHA256 hash: f3ffc668b39a455b981aa7866e87d7a4af8bcb1899ab7e3b6ef7a9191be0ebbd
SHA3-384 hash: 8654711e8ee16a76afd5d92a77af8f2288fbe49e1eb1726b94aee3a582f6b6e409b829be0794bcb326999e505fd37826
SHA1 hash: d9aec5540bb5ab8528c7228144e80c96ef53bfb8
MD5 hash: 7fc48c36585f7c2e6ea5aa407a880bc5
humanhash: muppet-echo-magnesium-mars
File name:7fc48c36585f7c2e6ea5aa407a880bc5.xls
Download: download sample
File size:204'288 bytes
First seen:2021-02-11 09:56:39 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:WnSGiysRchNXHfA1MiWhZFVEldEcMAZH1RrLlZxsdSfqSffcNgumAh9:ZLWgyS3uguj
TLSH DD149D03EA81701FDA9103392A5369C2B2329C37BA62DF5F1F4572B65D33692F836D25
Reporter abuse_ch
Tags: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: 5
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
3192899 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
IOCa.batExecutable file name
SuspiciousFORMULA.FILLMay modify Excel 4 Macro formulas at runtime
SuspiciousEXECMay run an executable file or a system

Intelligence


File Origin
# of uploads :
1
# of downloads :
91
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7fc48c36585f7c2e6ea5aa407a880bc5.xls
Verdict:
No threats detected
Analysis date:
2021-02-11 09:59:05 UTC
Tags:
macros

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:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a TCP request to an infection source by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Office File
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.
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Result
Threat name:
Hidden Macro 4.0
Detection:
malicious
Classification:
expl.evad
Score:
64 / 100
Signature
Document exploit detected (UrlDownloadToFile)
Found Excel 4.0 Macro with suspicious formulas
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Behaviour
Behavior Graph:
Threat name:
Document-Word.Trojan.Heuristic
Status:
Malicious
First seen:
2021-02-11 08:05:12 UTC
AV detection:
2 of 29 (6.90%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
macro xlm
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Malware Config
Dropper Extraction:
https://rebrand.ly/iencli51bat
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:Excel_Hidden_Macro_Sheet
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.

Web download

Excel file xls f3ffc668b39a455b981aa7866e87d7a4af8bcb1899ab7e3b6ef7a9191be0ebbd

(this sample)

  
Delivery method
Distributed via web download

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