MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 30910cd8f9de56b9dbdb4157b9ddb769b52bef499cfebd0e7f35303cdf4968b5. 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: 11


Intelligence 11 IOCs 1 YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 30910cd8f9de56b9dbdb4157b9ddb769b52bef499cfebd0e7f35303cdf4968b5
SHA3-384 hash: d881c1576e23fff327fd73048b47e6fe611b3e7ff61300311ec955671bab9953865dee211cbcbf2b307f731a5b581cd7
SHA1 hash: 4ed4027689a70838c382c62bd2a0aa03c65c5aff
MD5 hash: ed546d0832f3d13b4c05a813b7460949
humanhash: rugby-paris-utah-august
File name:purchased-73821321724.doc
Download: download sample
Signature njrat
Create hunting rule
File size:9'445 bytes
First seen:2022-02-08 01:14:54 UTC
Last seen:2022-02-08 06:13:22 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 192:/kmVVhNUqhq59FQHoYNk+CJp+jpJH2mS+MzjVlnErcXj40trNfRo0YP:cgqX54pk+CJ4DH2j3nErmE2fu0k
TLSH T10512193C42754AE9CF8DA2F6673AF80A00DF7E6A53C4E99376BCA3106F5576D1207440
Reporter abuse_ch
Tags:CVE-2017-11882 doc NjRAT RAT


Avatar
abuse_ch
NjRAT payload URL:
http://paxz.tk/gracezx.exe

NjRAT C2:
15.223.46.207:5552

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
15.223.46.207:5552 https://threatfox.abuse.ch/ioc/382099/

Intelligence

File Origin
# of uploads :
3
# of downloads :
240
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending a custom TCP request
Query of malicious DNS domain
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/30910cd8f9de56b9dbdb4157b9ddb769b52bef499cfebd0e7f35303cdf4968b5/results/dashboard
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/6201c41e4077c8b9a01e7033/reports/a3480c28-c508-492a-ad1f-f0637513c801/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/935666
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 568144 Sample: purchased-73821321724.doc Startdate: 08/02/2022 Architecture: WINDOWS Score: 100 61 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->61 63 Multi AV Scanner detection for domain / URL 2->63 65 Found malware configuration 2->65 67 19 other signatures 2->67 10 EQNEDT32.EXE 11 2->10         started        15 msiservices.exe 2->15         started        17 msiservices.exe 2->17         started        19 2 other processes 2->19 process3 dnsIp4 59 paxz.tk 2.58.149.41, 49167, 80 GBTCLOUDUS Netherlands 10->59 51 C:\Users\user\AppData\...\graceh6871264.exe, PE32 10->51 dropped 53 C:\Users\user\AppData\...\gracezx[1].exe, PE32 10->53 dropped 85 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->85 21 graceh6871264.exe 1 5 10->21         started        87 Injects a PE file into a foreign processes 15->87 24 msiservices.exe 15->24         started        26 msiservices.exe 15->26         started        28 msiservices.exe 15->28         started        30 msiservices.exe 17->30         started        55 ~WRF{A4300667-F478...A-547C82572840}.tmp, Composite 19->55 dropped 32 msiservices.exe 19->32         started        file5 signatures6 process7 signatures8 69 Multi AV Scanner detection for dropped file 21->69 71 Machine Learning detection for dropped file 21->71 73 Injects a PE file into a foreign processes 21->73 34 graceh6871264.exe 1 2 21->34         started        process9 file10 47 C:\Users\user\AppData\...\msiservices.exe, PE32 34->47 dropped 37 msiservices.exe 34->37         started        process11 signatures12 75 Multi AV Scanner detection for dropped file 37->75 77 Machine Learning detection for dropped file 37->77 79 Drops PE files to the startup folder 37->79 81 3 other signatures 37->81 40 msiservices.exe 4 1 37->40         started        process13 dnsIp14 57 15.223.46.207, 49168, 5552 AMAZON-02US United States 40->57 49 C:\...\db30892cfb61d0a8e6feb4ee3f71a21f.exe, PE32 40->49 dropped 83 Creates autostart registry keys with suspicious names 40->83 45 netsh.exe 40->45         started        file15 signatures16 process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/30910cd8f9de56b9dbdb4157b9ddb769b52bef499cfebd0e7f35303cdf4968b5/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-02-07 17:12:59 UTC
File Type:
Document
Extracted files:
4
AV detection:
10 of 43 (23.26%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gciqzwhz3zlltw63ifl3txnxng2sx32jtt7l2dt7guydzx2jnc2q._file
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:msiservices trojan
Link:
https://tria.ge/reports/220208-bl9d7abedr/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
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
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
njRAT/Bladabindi
Malware Config
C2 Extraction:
15.223.46.207:5552
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/30910cd8f9de/report/overview.html
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:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

File information

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

  
URLhaus
https://urlhaus.abuse.ch/url/2035678/

Comments