MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 848de91c16469e9f09e284adbbbf8cf317db916b414240c6bd46364a8f4c2c84. 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



Threat unknown


Vendor detections: 10


Maldoc score: 14


Intelligence 10 IOCs YARA 1 File information Comments

SHA256 hash: 848de91c16469e9f09e284adbbbf8cf317db916b414240c6bd46364a8f4c2c84
SHA3-384 hash: 87b174f2317b3014451113a6a5ddf324e995d97cffbcd346ad3948543f813e8c91b5ec3071047acddce7d82d96678035
SHA1 hash: 50f510e76b3a4655b9d5f4626e10e88e63b6ff68
MD5 hash: a02cfacbf32e9ff66464de27faa58543
humanhash: pasta-river-princess-vermont
File name:848de91c16469e9f09e284adbbbf8cf317db916b414240c6bd46364a8f4c2c84.doc
Download: download sample
File size:87'040 bytes
First seen:2021-09-09 02:58:15 UTC
Last seen:2021-09-09 03:01:10 UTC
File type:Word file doc
MIME type:application/msword
ssdeep 1536:6cffffffgffffffd7fffffG9fffffFEffffffurfffYyCwtvLRD4nKmGI+xwtImr:6cffffffgffffffd7fffffSfffffOffx
TLSH T1AB837D22B3BEEDABD2267D744A9182A9122D2C5B9E32534F75043F6C78B5B10CF15BC4
Reporter JAMESWT_WT
Tags:doc UFBA

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: 14
Application name is Microsoft Office Word
Office document is in OLE format
Office document contains VBA Macros
OLE dump

MalwareBazaar was able to identify 12 sections in this file using oledump:

Section IDSection sizeSection name
1118 bytesCompObj
24096 bytesDocumentSummaryInformation
34096 bytesSummaryInformation
47521 bytes1Table
538542 bytesData
6421 bytesMacros/PROJECT
771 bytesMacros/PROJECTwm
816232 bytesMacros/VBA/NewMacros
91087 bytesMacros/VBA/ThisDocument
103061 bytesMacros/VBA/_VBA_PROJECT
11696 bytesMacros/VBA/dir
125678 bytesWordDocument
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
AutoExecAutoOpenRuns when the Word document is opened
AutoExecDocument_OpenRuns when the Word or Publisher document is opened
IOCpowershell.exeExecutable file name
SuspiciousShellMay run an executable file or a system command
SuspiciousWscript.ShellMay run an executable file or a system command
SuspiciousRunMay run an executable file or a system command
SuspiciouspowershellMay run PowerShell commands
SuspiciousCreateObjectMay create an OLE object
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence


File Origin
# of uploads :
2
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
848de91c16469e9f09e284adbbbf8cf317db916b414240c6bd46364a8f4c2c84
Verdict:
Malicious activity
Analysis date:
2021-09-08 14:43:46 UTC
Tags:
trojan

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Connection attempt
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Sending a UDP request
Launching a process by exploiting the app vulnerability
Using obfuscated Powershell scripts
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
Legacy Word File with Macro
Document image
Document image
Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Base64 Encoded Powershell
Detected a macro with a base64 encoded reference to Powershell.
Hidden Powershell
Detected a pivot to Powershell that utilizes commonly nefarious attributes such as '-windowstyle hidden'.
Powershell in Macro
Detected a macro that may utilize Powershell. Such pivots are commonly found in malware.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
Metasploit
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document contains an embedded VBA with many string operations indicating source code obfuscation
Document exploit detected (process start blacklist hit)
Encrypted powershell cmdline option found
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Potential dropper URLs found in powershell memory
Sigma detected: Encoded FromBase64String
Sigma detected: FromBase64String Command Line
Sigma detected: Malicious Base64 Encoded PowerShell Keywords in Command Lines
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious PowerShell Cmdline
Sigma detected: Suspicious PowerShell Command Line
Suspicious powershell command line found
Very long command line found
Yara detected MetasploitPayload
Behaviour
Behavior Graph:
Threat name:
Script-PowerShell.Downloader.Bynoco
Status:
Malicious
First seen:
2021-09-08 00:49:24 UTC
File Type:
Document
Extracted files:
19
AV detection:
22 of 45 (48.89%)
Threat level:
  3/5
Result
Malware family:
mimikatz
Score:
  10/10
Tags:
family:cobaltstrike family:metasploit family:mimikatz backdoor macro macro_on_action suricata trojan xlm
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Blocklisted process makes network request
mimikatz is an open source tool to dump credentials on Windows
Cobaltstrike
MetaSploit
Mimikatz
Process spawned unexpected child process
suricata: ET MALWARE Possible Metasploit Payload Common Construct Bind_API (from server)
Malware Config
C2 Extraction:
178.62.247.185:9090
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:Office_AutoOpen_Macro
Author:Florian Roth
Description:Detects an Microsoft Office file that contains the AutoOpen Macro function

File information


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

Web download

Word file doc 848de91c16469e9f09e284adbbbf8cf317db916b414240c6bd46364a8f4c2c84

(this sample)

  
Delivery method
Distributed via web download

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