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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16cb141bbfcd56edd993b397ec0ce8d56e204656190c7974faf157eaa94d5ce4. 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: 16cb141bbfcd56edd993b397ec0ce8d56e204656190c7974faf157eaa94d5ce4
SHA3-384 hash: cb70d843e9eecb8c94231b0d6b08a5b8f567218d5cebd271b7f5ea34e8a99b1e61f82ce703ea3b448121b2d0ccac082c
SHA1 hash: da3e1d8717667d85b84f870ac2434a1c834ae5ec
MD5 hash: 1035dbcb557c7723bf66b5e205e30669
humanhash: bulldog-princess-fish-vegan
File name:act changes12-2021-4056208920.xlsm
Download: download sample
Signature Dridex
File size:115'748 bytes
First seen:2021-12-06 17:31:01 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 3072:PZjB3zgMdi1vYHmvKrguyzFq8fDb/DNijhtcIpIpEkndQJ:PZND9ixYHhgVBqub/DNMcemdE
TLSH T1E1B30209154B8C88C5BB32B3452541F17B0D6E226DB7C19B30F45E3C9A263D9A6EEF87
Reporter GovCERT_CH
Tags:Dridex xlsm

Intelligence


File Origin
# of uploads :
1
# of downloads :
330
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
act changes12-2021-4056208920.xlsm
Verdict:
No threats detected
Analysis date:
2021-12-06 20:01:36 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:
evasive wscript xlm
Result
Threat name:
Hidden Macro 4.0
Detection:
malicious
Classification:
expl.evad
Score:
96 / 100
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 obfuscated Excel 4.0 Macro
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
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 535000 Sample: act changes12-2021-40562089... Startdate: 06/12/2021 Architecture: WINDOWS Score: 96 39 Multi AV Scanner detection for submitted file 2->39 41 Potential malicious VBS script found (has network functionality) 2->41 43 Contains functionality to create processes via WMI 2->43 45 6 other signatures 2->45 6 EXCEL.EXE 8 12 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:\...\~$act changes12-2021-4056208920.xlsm, data 6->33 dropped 35 C:\ProgramData\TwiAi.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
Threat name:
Document-Excel.Downloader.EncDoc
Status:
Malicious
First seen:
2021-12-06 16:09:12 UTC
File Type:
Document
Extracted files:
20
AV detection:
13 of 28 (46.43%)
Threat level:
  3/5
Result
Malware family:
n/a
Score:
  8/10
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 SetWindowsHookEx
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 16cb141bbfcd56edd993b397ec0ce8d56e204656190c7974faf157eaa94d5ce4

(this sample)

  
Dropped by
Dridex
  
Delivery method
Distributed via e-mail attachment

Comments