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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a2b0fe07c437a225d7457891b09f617cccb9dc84c237d7c1ff34a913eeda804. 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


Dridex


Vendor detections: 8


Maldoc score: 4


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a2b0fe07c437a225d7457891b09f617cccb9dc84c237d7c1ff34a913eeda804
SHA3-384 hash: b47c56f8d33cf67fadc8c44587ead6649b7a56eb4f1897525096b8bb89eb5fa0bb44d3d7626fc8e8489fb8f8dba04a6b
SHA1 hash: befff61f7812a7e6cbdf4c72fcf3703c62f49992
MD5 hash: 1909b272d9181868d904bd61217e70d6
humanhash: cold-alpha-eighteen-fix
File name:SecuriteInfo.com.Heur.21578.29033
Download: download sample
Signature Dridex
Create hunting rule
File size:128'000 bytes
First seen:2021-12-07 15:18:49 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.ms-excel
ssdeep 3072:0k96FE76hr0dOAn98AdwL3x2bVyE/KC7AZ5uPON1SNreH2YRMHZ1xs:F96FE76hr0d3n98AdwL3x2bVyyKC7AZJ
TLSH T1DDC30862BFAF6CF6C605B7BBCA9615E0D3F2DC17122A92FA1544B32D1E306D14D4D822
Reporter SecuriteInfoCom
Tags:Dridex 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
Maldoc score: 4
OLE dump

MalwareBazaar was able to identify 4 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2388 bytesDocumentSummaryInformation
3208 bytesSummaryInformation
4123650 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
SuspiciousEXECMay run an executable file or a system
SuspiciousXLM macroXLM macro found. It may contain malicious code

Intelligence

File Origin
# of uploads :
1
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Heur.21578.29033
Verdict:
No threats detected
Analysis date:
2021-12-07 21:29:58 UTC
Tags:
macros macros40
Link:
https://app.any.run/tasks/12dc22ba-67a5-4f91-9c15-126070f46c76

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/212193/
Detection(s):
SecuriteInfo.com.Heur.21578.29033.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DridexAndTheFuriousFiveMessage.20211130.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XL4MDridexRunningDownTheDream.20211115.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
DNS request
Creating a window
Searching for the window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
Legacy Excel File
Link:
https://app.docguard.net/8a2b0fe07c437a225d7457891b09f617cccb9dc84c237d7c1ff34a913eeda804/results/dashboard
Document image
Image:
Download PNG
Document image
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
macros
Link:
https://www.filescan.io/uploads/61af7b6a4d8e6f3a5e1738be/reports/83582f0c-d8d8-42c7-a812-6b03bbca64bb/overview
Result
Threat name:
Hidden Macro 4.0 Dridex Downloader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/903288
Signature
Contains functionality to create processes via WMI
Creates processes via WMI
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Found protected and hidden Excel 4.0 Macro sheet
Microsoft Office drops suspicious files
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (has network functionality)
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: WScript or CScript Dropper
Yara detected Dridex Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 535773 Sample: SecuriteInfo.com.Heur.21578.29033 Startdate: 07/12/2021 Architecture: WINDOWS Score: 100 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected Dridex Downloader 2->41 43 Potential malicious VBS script found (has network functionality) 2->43 45 6 other signatures 2->45 6 EXCEL.EXE 8 10 2->6         started        10 explorer.exe 2 2->10         started        12 explorer.exe 2->12         started        14 6 other processes 2->14 process3 file4 33 C:\Users\...\SecuriteInfo.com.Heur.21578.xls, Composite 6->33 dropped 35 C:\ProgramData\yrdBaMtWgpe.vbs, ASCII 6->35 dropped 47 Document exploit detected (creates forbidden files) 6->47 49 Microsoft Office drops suspicious files 6->49 16 WMIC.exe 6->16         started        19 WMIC.exe 6->19         started        21 WMIC.exe 6->21         started        23 WMIC.exe 6->23         started        25 wscript.exe 10->25         started        27 wscript.exe 12->27         started        29 wscript.exe 14->29         started        31 wscript.exe 14->31         started        signatures5 process6 signatures7 37 Creates processes via WMI 16->37
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8a2b0fe07c437a225d7457891b09f617cccb9dc84c237d7c1ff34a913eeda804/
Threat name:
Document-Office.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2021-12-07 14:49:19 UTC
File Type:
Document
Extracted files:
9
AV detection:
9 of 42 (21.43%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rivq7yd4in5cexluk6erwcpwc7gmxhoijqrx27a76nfjcpxnvaca._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
macro xlm
Link:
https://tria.ge/reports/211207-sp6k5sagal/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8a2b0fe07c43/report/overview.html
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/8a2b0fe07c437a225d7457891b09f617cccb9dc84c237d7c1ff34a913eeda804

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:Excel_Hidden_Macro_Sheet
Create hunting rule
Rule name:Excel_Hidden_Macro_Sheet
Create hunting rule
Rule name:multiple_concats_in_excel4_exec_enjoy_the_silence
Create hunting rule
Author:Will Metcalf
Description:Behold The Great And Powerful Match Iterator. Multiple Concats with register Function SILENT BUILDER EDITION
Reference:https://blog.reversinglabs.com/blog/excel-4.0-macros
Rule name:multiple_concats_in_excel4_formula_exec_1
Create hunting rule
Author:Will Metcalf
Description:Behold The Great And Powerful Match Iterator. Multiple Concats Inside of exec Function
Reference:https://blog.reversinglabs.com/blog/excel-4.0-macros

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/212193/

Comments