MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f199cc703c62cb31955634bf10a1285c81fb95f3bba152130cb3cb2e976aef1f. 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: 11


Maldoc score: 14


Intelligence 11 IOCs YARA 1 File information Comments

SHA256 hash: f199cc703c62cb31955634bf10a1285c81fb95f3bba152130cb3cb2e976aef1f
SHA3-384 hash: 3f1ce06aa77e7a2c12701c1480d3fb1a4075a81efb0a21b7bac48e93df2e6775523fc3dfa786bbd422541ac825830d1f
SHA1 hash: dc0c8a9d7fae0920c49b3cce9ac26f89c0dde321
MD5 hash: e2f9c1c12b3ea287fe8fdca1e2c3a415
humanhash: kentucky-mississippi-five-grey
File name:detalhes_atualizacao_ufpa.doc
Download: download sample
File size:121'344 bytes
First seen:2021-09-09 03:04:24 UTC
Last seen:Never
File type:Word file doc
MIME type:application/msword
ssdeep 1536:J3xgznD2F+Pv5DOLpf8G5JHDsYTAS96G9p0857I4SA4n:HgbyG2PJjZAYs8RI434
TLSH T19BC38C32F275DF6FD2092AB04A528EA822357C674B92565B70057F3E7CB2B11CF11788
Reporter JAMESWT_WT
Tags:doc UFPA

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 16 sections in this file using oledump:

Section IDSection sizeSection name
1118 bytesCompObj
24096 bytesDocumentSummaryInformation
34096 bytesSummaryInformation
47672 bytes1Table
566939 bytesData
6412 bytesMacros/PROJECT
771 bytesMacros/PROJECTwm
819186 bytesMacros/VBA/NewMacros
91087 bytesMacros/VBA/ThisDocument
103047 bytesMacros/VBA/_VBA_PROJECT
111452 bytesMacros/VBA/__SRP_0
12122 bytesMacros/VBA/__SRP_1
13263 bytesMacros/VBA/__SRP_2
14256 bytesMacros/VBA/__SRP_3
15703 bytesMacros/VBA/dir
165678 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 :
1
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
detalhes_atualizacao_ufpa.doc
Verdict:
Malicious activity
Analysis date:
2021-09-09 03:05:42 UTC
Tags:
n/a

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
Sending a UDP request
Connection attempt
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
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.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to capture and log keystrokes
Contains functionality to change the desktop window for a process (likely to hide graphical interactions)
Contains functionality to check if the process is started with administrator privileges
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
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
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
System process connects to network (likely due to code injection or exploit)
Very long command line found
Yara detected MetasploitPayload
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 480216 Sample: detalhes_atualizacao_ufpa.doc Startdate: 09/09/2021 Architecture: WINDOWS Score: 100 23 Malicious sample detected (through community Yara rule) 2->23 25 Antivirus / Scanner detection for submitted sample 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 16 other signatures 2->29 8 WINWORD.EXE 429 31 2->8         started        process3 signatures4 39 Suspicious powershell command line found 8->39 41 Very long command line found 8->41 43 Encrypted powershell cmdline option found 8->43 11 powershell.exe 6 8->11         started        process5 signatures6 45 Suspicious powershell command line found 11->45 47 Very long command line found 11->47 14 powershell.exe 17 11->14         started        process7 dnsIp8 21 178.62.247.185, 49165, 49167, 49168 DIGITALOCEAN-ASNUS European Union 14->21 49 Contains functionality to change the desktop window for a process (likely to hide graphical interactions) 14->49 51 Contains functionality to inject threads in other processes 14->51 53 Contains functionality to capture and log keystrokes 14->53 18 notepad.exe 4 14->18         started        signatures9 process10 signatures11 31 System process connects to network (likely due to code injection or exploit) 18->31 33 Contains functionality to change the desktop window for a process (likely to hide graphical interactions) 18->33 35 Contains functionality to inject threads in other processes 18->35 37 3 other signatures 18->37
Threat name:
Script-Macro.Downloader.Powdow
Status:
Malicious
First seen:
2021-09-09 03:05:14 UTC
File Type:
Document
Extracted files:
23
AV detection:
15 of 45 (33.33%)
Threat level:
  3/5
Result
Malware family:
metasploit
Score:
  10/10
Tags:
family:cobaltstrike family:metasploit backdoor macro macro_on_action trojan xlm
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Program crash
Drops file in Windows directory
Blocklisted process makes network request
Downloads MZ/PE file
Cobaltstrike
MetaSploit
Process spawned unexpected child process
Malware Config
C2 Extraction:
http://178.62.247.185:7070/w_CrkMxgNzKLC4oK6jLImgB5-5scwO1VQg4xJJ-CoPnCvBdIXpUwcaqYYGMmIaV4G9-5-He2qVmoaSHj7ntBRxRQmBA20zaLcfLIos54xYqVGKpw-2g0ijtiZe733UjAi9zQlyyPChF6xD3Udkj_36qSt9m-LsdPSLDMDjHOKaUkBmpBGpKYqU75Au_R7vGSj_lJ-Pt_UtX8AtZ-fkGjN_yYmXiVKRu5uJS
Malware family:
Cobalt Strike
Verdict:
Malicious
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 f199cc703c62cb31955634bf10a1285c81fb95f3bba152130cb3cb2e976aef1f

(this sample)

  
Delivery method
Distributed via web download

Comments