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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d1a785afd164bb2c5d932ada9920879984a7cc2b26ed8512828fda39b26dd2d1. 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



SilentBuilder


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash: d1a785afd164bb2c5d932ada9920879984a7cc2b26ed8512828fda39b26dd2d1
SHA3-384 hash: ce9af33541a774d4fbc531ac2b09ba1fe3b2a0120553b81b718e7031956b8b408649ec6929549a5eb6a2c5518d619672
SHA1 hash: 85d6b9b0aa0e192a6141f718bb9b76cc4121fb1f
MD5 hash: 2d4c10d7fd6a3bbc1d52eb2e27c15d0c
humanhash: low-network-neptune-delta
File name:highlights-40677152292.xls
Download: download sample
Signature SilentBuilder
File size:141'303 bytes
First seen:2021-12-01 17:06:58 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:CPv9znGB+vdxMlT0h4377gYllmQskO2UMXGVi2e/JjNxSan6NljwSWEx02l9dIND:e5zEahmlYOOeRnwNKIde14HrGdZ
TLSH T1DDD302C5D533C6E9FDE2E5FCE01E9CB9086814AA5A10798EBCC1A014530BE47466BE9F
Reporter proxylife
Tags:Dridex SilentBuilder xlsx

Intelligence


File Origin
# of uploads :
1
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
highlights-40677152292.xls
Verdict:
No threats detected
Analysis date:
2021-12-01 17:13:54 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/octet-stream
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Searching for the window
Сreating synchronization primitives
Creating a window
Creating a file
Creating a process with a hidden window
Launching a process by exploiting the app vulnerability
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:
100 / 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
Sigma detected: Suspicious MSHTA Process Patterns
Sigma detected: TA505 Dropper Load Pattern
Yara detected Dridex Downloader
Behaviour
Behavior Graph:
Threat name:
Document-Word.Malware.Heuristic
Status:
Malicious
First seen:
2021-12-01 17:07:11 UTC
File Type:
Document
Extracted files:
19
AV detection:
2 of 44 (4.55%)
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
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.

Comments