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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3837ff7d2110e930ac8fcd7f72cf71009dc910674aa64f270044f8cf6d3805e5. 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


Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash: 3837ff7d2110e930ac8fcd7f72cf71009dc910674aa64f270044f8cf6d3805e5
SHA3-384 hash: 1f3473cf85c76e416f5c93275687a69eaa8a4253673a8f724ae8532d7893d7216e861ec19bcb95ef49ebe3ffa8e3b23f
SHA1 hash: 70c1fa3bca50bea118f186175caf1e1717aa23e8
MD5 hash: e0e2222230d999c75230b9b070116637
humanhash: ink-high-oregon-single
File name:88985.xlsm
Download: download sample
Signature Dridex
File size:141'375 bytes
First seen:2021-12-01 21:05:40 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:9TRHyJYvrndxMlT0h4377gYllmQskO2UMXGVi2e/JjNxSan6NljwSWEx02l9dINa:WJ/ahmlYOOeRnwNKIde14PdF
TLSH T18FD302C8D523D6EAFEF291F5550C5DFA0CB418668A807ACFFCC0B160522A987435BD9B
Reporter GovCERT_CH
Tags:Dridex xlsm

Intelligence


File Origin
# of uploads :
1
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
88985.xlsm
Verdict:
No threats detected
Analysis date:
2021-12-01 21:08:20 UTC
Tags:
macros40

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.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
DNS request
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Document image
Document image
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
macros-on-open mshta stripped
Result
Threat name:
Hidden Macro 4.0 Dridex Downloader
Detection:
malicious
Classification:
troj.expl.evad
Score:
96 / 100
Signature
Contains functionality to create processes via WMI
Creates and opens a fake document (probably a fake document to hide exploiting)
Creates processes via WMI
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Found malicious Excel 4.0 Macro
Found obfuscated Excel 4.0 Macro
Found protected and hidden Excel 4.0 Macro sheet
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Sigma detected: Microsoft Office Product Spawning Windows Shell
Yara detected Dridex Downloader
Behaviour
Behavior Graph:
Threat name:
Document-Office.Downloader.EncDoc
Status:
Malicious
First seen:
2021-12-01 21:06:13 UTC
File Type:
Document
Extracted files:
19
AV detection:
19 of 28 (67.86%)
Threat level:
  3/5
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
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Blocklisted process makes network request
Process spawned unexpected child process
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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:Microsoft_XLSX_with_Macrosheet
Rule name:Microsoft_XLSX_with_Macrosheet

File information


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

Malspam

Dridex

Excel file xlsm 3837ff7d2110e930ac8fcd7f72cf71009dc910674aa64f270044f8cf6d3805e5

(this sample)

  
Dropped by
Dridex
  
Delivery method
Distributed via e-mail attachment

Comments