MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 450b65a3bb7a28c469dc30984f606c28c6f212095c9dd90bb49b2d008e9684ab. 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



TrickBot


Vendor detections: 5


Maldoc score: 7


Intelligence 5 IOCs YARA File information Comments

SHA256 hash: 450b65a3bb7a28c469dc30984f606c28c6f212095c9dd90bb49b2d008e9684ab
SHA3-384 hash: e2caab83ac1b21eed43b0a029659a23e5fa2096655fd507a4e293f84c88c454977510abd5090db69cbaf9bb38a88339c
SHA1 hash: 4497fed6b02be06596a27e8d9e0fb5031d53f2a3
MD5 hash: e88fdb597a983317ebe4ad915cb337b2
humanhash: orange-lamp-eighteen-double
File name:request_form_1610732879.xls
Download: download sample
Signature TrickBot
File size:164'869 bytes
First seen:2021-01-15 19:20:01 UTC
Last seen:2021-01-18 10:15:49 UTC
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 3072:yFcUBGElQR+kJLQ88mDY8ahT6kPIYRM53BlGQMIs0SYlE1R4Y2XFfb7RYd0d42Qz:8cTGoJLimDJaF3ZR2lGQTsklE0Y0Wd0g
TLSH C8F3126711E85000C732EE71DD66AFC72348EC3A29EB92D274D4F7116BF6961F461AC8
Reporter JAMESWT_WT
Tags:TrickBot

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: 7
Application name is Microsoft Excel
Office document is in OLE format
Office document is in encrypted
OLE dump

MalwareBazaar was able to identify 3 sections in this file using oledump:

Section IDSection sizeSection name
14096 bytesDocumentSummaryInformation
24096 bytesSummaryInformation
3153885 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
SuspiciousRUNMay run an executable file or a system command
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
2
# of downloads :
191
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
request_form_1610732879.xls
Verdict:
Malicious activity
Analysis date:
2021-01-15 18:07:42 UTC
Tags:
macros macros40

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
MALICIOUS
Details
Excel 4.0 Macro
Document contains Excel 4.0 macros (XLM). A valid, albeit dated feature, this document should be treated with suspicion.
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:
60 / 100
Signature
Document exploit detected (UrlDownloadToFile)
Found abnormal large hidden Excel 4.0 Macro sheet
Found Excel 4.0 Macro with suspicious formulas
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Behaviour
Behavior Graph:
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Malware Config
Dropper Extraction:
https://sometestfirstdom.info/xls/1881/index/processingSetRequestDownloadPayloader/?servername=excel
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments