MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f732728e76216d28cced692aa05429eb25f557a5fddbdad69f144398904c00ac. 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


njrat


Vendor detections: 8


Intelligence 8 IOCs YARA 11 File information Comments
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SHA256 hash: f732728e76216d28cced692aa05429eb25f557a5fddbdad69f144398904c00ac
SHA3-384 hash: 6183abb05b45504d2429918839e5d13f5024198e11c38c686214f35c671bb44ac2199c39406175cacc1b9ecf7a586924
SHA1 hash: 44273c4f3c8a3ed1bdf66fb28627e066d20d65a5
MD5 hash: 4ea662f8506f3a68cb2b151b11e4b1f1
humanhash: comet-glucose-arizona-cardinal
File name:Dados Do Hospede.ppam
Download: download sample
Signature njrat
Create hunting rule
File size:8'389 bytes
First seen:2024-05-22 18:33:02 UTC
Last seen:Never
File type:PowerPoint file ppam
MIME type:application/vnd.openxmlformats-officedocument.presentationml.presentation
ssdeep 192:xrXP/fQTJKIWBawIlTdxLuNG4BIO1d99s0NpMoWV:dXPwTwIWcDTdLGIO33pM5
TLSH T13D029D1DD2E3C942CEA603BBD5350E773D2C8437446E76077AA8D3680ED44A7B75D906
TrID 64.8% (.PPAM) PowerPoint Macro-enabled Open XML add-in (41500/1/5)
27.3% (.ZIP) Open Packaging Conventions container (17500/1/4)
6.2% (.ZIP) ZIP compressed archive (4000/1)
1.5% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter abuse_ch
Tags:NjRAT ppam

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
TwinWave.EvilDoc.DOCXRSTRGOOD.POWERSHELL.211012.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
Legacy PowerPoint File with Macro
Link:
https://app.docguard.net/f732728e76216d28cced692aa05429eb25f557a5fddbdad69f144398904c00ac/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
88%
Tags:
lolbin macros macros-on-open powershell wscript
Link:
https://www.filescan.io/uploads/664e3a6f024a27284d4276a5/reports/68f36175-4900-415b-b9ae-40718f35ecac/overview
Verdict:
Malicious
Labled as:
GT:VB.Heur2.PwShell.2
Link:
https://www.hybrid-analysis.com/sample/f732728e76216d28cced692aa05429eb25f557a5fddbdad69f144398904c00ac
Gathering data
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1445993
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Contains functionality to log keystrokes (.Net Source)
Creates and opens a fake document (probably a fake document to hide exploiting)
Creates autostart registry keys with suspicious values (likely registry only malware)
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (process start blacklist hit)
Found malware configuration
Injects a PE file into a foreign processes
Installs new ROOT certificates
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Copy file to startup via Powershell
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: Potentially Suspicious PowerShell Child Processes
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious execution chain found
Suspicious powershell command line found
Tries to download and execute files (via powershell)
Very long command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Generic Downloader
Yara detected Njrat
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1445993 Sample: Dados Do Hospede.ppam Startdate: 22/05/2024 Architecture: WINDOWS Score: 100 77 textbin.net 2->77 79 pt.textbin.net 2->79 121 Found malware configuration 2->121 123 Malicious sample detected (through community Yara rule) 2->123 125 Antivirus detection for URL or domain 2->125 127 22 other signatures 2->127 13 cmd.exe 1 2->13         started        15 cmd.exe 2->15         started        18 cmd.exe 2->18         started        20 POWERPNT.EXE 501 3 2->20         started        signatures3 process4 signatures5 22 POWERPNT.EXE 31 22 13->22         started        163 Suspicious powershell command line found 15->163 165 Wscript starts Powershell (via cmd or directly) 15->165 25 powershell.exe 15->25         started        28 powershell.exe 18->28         started        process6 dnsIp7 129 Suspicious powershell command line found 22->129 131 Tries to download and execute files (via powershell) 22->131 133 Creates and opens a fake document (probably a fake document to hide exploiting) 22->133 30 powershell.exe 6 5 22->30         started        35 powershell.exe 6 6 22->35         started        85 textbin.net 25->85 87 pt.textbin.net 25->87 135 Writes to foreign memory regions 25->135 137 Injects a PE file into a foreign processes 25->137 37 RegAsm.exe 25->37         started        89 textbin.net 28->89 91 pt.textbin.net 28->91 39 RegAsm.exe 28->39         started        signatures8 process9 dnsIp10 97 textbin.net 148.72.177.212, 443, 49164, 49167 AS-30083-GO-DADDY-COM-LLCUS United States 30->97 99 pt.textbin.net 30->99 101 sharetext.me 172.67.191.176, 443, 49166, 49172 CLOUDFLARENETUS United States 30->101 68 C:\Users\user\AppData\Local\Temp\x.js, Unicode 30->68 dropped 111 Suspicious powershell command line found 30->111 113 Installs new ROOT certificates 30->113 115 Tries to download and execute files (via powershell) 30->115 119 2 other signatures 30->119 41 wscript.exe 1 30->41         started        103 drive.google.com 142.250.185.238, 443, 49163 GOOGLEUS United States 35->103 105 drive.usercontent.google.com 142.250.186.129, 443, 49165 GOOGLEUS United States 35->105 117 Creates and opens a fake document (probably a fake document to hide exploiting) 35->117 44 POWERPNT.EXE 1 2 35->44         started        107 pt.textbin.net 37->107 109 pt.textbin.net 39->109 file11 signatures12 process13 signatures14 151 Suspicious powershell command line found 41->151 153 Wscript starts Powershell (via cmd or directly) 41->153 155 Very long command line found 41->155 157 2 other signatures 41->157 46 powershell.exe 4 41->46         started        process15 signatures16 159 Suspicious powershell command line found 46->159 161 Tries to download and execute files (via powershell) 46->161 49 powershell.exe 11 46->49         started        process17 dnsIp18 70 paste.ee 49->70 73 paste.ee 188.114.96.3, 443, 49168 CLOUDFLARENETUS European Union 49->73 75 4 other IPs or domains 49->75 64 C:\Users\user\AppData\Roaming\...\x2.ps1, ASCII 49->64 dropped 66 C:\Users\user\AppData\Roaming\...\wobvb.ps1, Unicode 49->66 dropped 53 powershell.exe 49->53         started        57 cmd.exe 49->57         started        59 powershell.exe 1 4 49->59         started        file19 149 Connects to a pastebin service (likely for C&C) 70->149 signatures20 process21 dnsIp22 81 textbin.net 53->81 83 pt.textbin.net 53->83 139 Writes to foreign memory regions 53->139 141 Injects a PE file into a foreign processes 53->141 61 RegAsm.exe 53->61         started        143 Suspicious powershell command line found 57->143 145 Wscript starts Powershell (via cmd or directly) 57->145 147 Creates autostart registry keys with suspicious values (likely registry only malware) 59->147 signatures23 process24 dnsIp25 93 textbin.net 61->93 95 pt.textbin.net 61->95
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f732728e76216d28cced692aa05429eb25f557a5fddbdad69f144398904c00ac/
Threat name:
Document-Office.Downloader.RevengeRAT
Create hunting rule
Status:
Malicious
First seen:
2024-05-22 18:34:04 UTC
File Type:
Document
Extracted files:
15
AV detection:
14 of 24 (58.33%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=64zhfdtwefwsrthnnevkavbj5ms7kv5f7xn5vvu7crbzrecmacwa._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Link:
https://tria.ge/reports/240522-w6723scb3s/
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
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Legitimate hosting services abused for malware hosting/C2
Blocklisted process makes network request
Process spawned unexpected child process
Malware Config
Dropper Extraction:
https://pt.textbin.net/download/x7sf6t2dgv
https://drive.google.com/uc?export=download&id=15ocCLsR2ZmidPwSBKFMdpMbEhO5YtYQ4
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f732728e76216d28cced692aa05429eb25f557a5fddbdad69f144398904c00ac

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
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:office_document_vba
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Office document with embedded VBA
Reference:https://github.com/jipegit/
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:vbaproject_bin
Create hunting rule
Author:CD_R0M_
Description:{76 62 61 50 72 6f 6a 65 63 74 2e 62 69 6e} is hex for vbaproject.bin. Macros are often used by threat actors. Work in progress - Ran out of time

File information

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

Comments