MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d31dd64e3df970a07d7a59d0f2d65d12dfeb09fb48605daedcb2863f6bc7c77e. 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 4 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d31dd64e3df970a07d7a59d0f2d65d12dfeb09fb48605daedcb2863f6bc7c77e
SHA3-384 hash: ef8d24a0a2a954045a90d8fbaa648e9e5f818424d91a047054cdc7aec855c31f85aeeed35de61f75edacdc9103019820
SHA1 hash: 4e569d6be1e2c874e14dc2a72a7b2d36ab916fd0
MD5 hash: 19032a2236dab8cba5e224fee5d70212
humanhash: fanta-uncle-butter-seven
File name:19032a2236dab8cba5e224fee5d70212.exe
Download: download sample
Signature njrat
Create hunting rule
File size:1'129'472 bytes
First seen:2022-05-11 21:26:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 112 x njrat, 80 x RedLineStealer)
ssdeep 24576:DAKCdETSh5JpEqy+z5M4W3GqIXFVXDN2F0dIKvTxQco:DADdEkJpEz+z5M4KQPXDNVXFQc
Threatray 75 similar samples on MalwareBazaar
TLSH T1683533C29365632FEBF63371771A0A303A86A23C26AC1FC67586B141E6DD5DE49C5833
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.5% (.EXE) Win32 Executable (generic) (4505/5/1)
8.5% (.EXE) Win16/32 Executable Delphi generic (2072/23)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
18.158.249.75:17483

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
18.158.249.75:17483 https://threatfox.abuse.ch/ioc/550069/
3.125.102.39:17483 https://threatfox.abuse.ch/ioc/550070/
3.125.223.134:17483 https://threatfox.abuse.ch/ioc/550071/
3.125.209.94:17483 https://threatfox.abuse.ch/ioc/550073/

Intelligence

File Origin
# of uploads :
1
# of downloads :
376
Origin country :
n/a
Vendor Threat Intelligence
Detection:
EnigmaStub
Create hunting rule
Link:
https://www.capesandbox.com/analysis/269776/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Enabling the 'hidden' option for analyzed file
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Enabling the 'hidden' option for files in the %temp% directory
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi enigma obfuscated packed shell32.dll zpevdo
Link:
https://www.filescan.io/uploads/627c2a02bd5c76586e2f3084/reports/2ab3f5c1-5b78-4366-881c-7a64542dce9a/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9a7a14a1-a8b2-420b-bece-e07c41f875d6
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/992215
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to many ports of the same IP (likely port scanning)
Creates autostart registry keys with suspicious names
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops PE files to the startup folder
Drops PE files with benign system names
Found malware configuration
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Protects its processes via BreakOnTermination flag
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Uses netsh to modify the Windows network and firewall settings
Yara detected Generic Downloader
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 624711 Sample: 7UFM4mceMM.exe Startdate: 11/05/2022 Architecture: WINDOWS Score: 100 47 0.tcp.eu.ngrok.io 2->47 51 Snort IDS alert for network traffic 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 13 other signatures 2->57 9 7UFM4mceMM.exe 1 6 2->9         started        13 svchost.exe 2->13         started        15 svchost.exe 3 2->15         started        17 12 other processes 2->17 signatures3 process4 dnsIp5 37 C:\Users\user\AppData\Local\...\svchost.exe, PE32 9->37 dropped 39 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 9->39 dropped 41 C:\Users\user\AppData\...\7UFM4mceMM.exe.log, ASCII 9->41 dropped 67 Detected unpacking (changes PE section rights) 9->67 69 Detected unpacking (overwrites its own PE header) 9->69 71 Hides threads from debuggers 9->71 73 Drops PE files with benign system names 9->73 20 svchost.exe 2 6 9->20         started        75 Changes security center settings (notifications, updates, antivirus, firewall) 13->75 25 MpCmdRun.exe 13->25         started        43 127.0.0.1 unknown unknown 17->43 45 192.168.2.1 unknown unknown 17->45 file6 signatures7 process8 dnsIp9 49 0.tcp.eu.ngrok.io 18.192.31.165, 17483, 49758, 49767 AMAZON-02US United States 20->49 33 C:\...\1bcfd0297a9d0ccd3817583becd69d82.exe, PE32 20->33 dropped 35 1bcfd0297a9d0ccd38...exe:Zone.Identifier, ASCII 20->35 dropped 59 Antivirus detection for dropped file 20->59 61 System process connects to network (likely due to code injection or exploit) 20->61 63 Multi AV Scanner detection for dropped file 20->63 65 10 other signatures 20->65 27 netsh.exe 1 3 20->27         started        29 conhost.exe 25->29         started        file10 signatures11 process12 process13 31 conhost.exe 27->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d31dd64e3df970a07d7a59d0f2d65d12dfeb09fb48605daedcb2863f6bc7c77e/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-05-10 03:12:00 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
29 of 41 (70.73%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2mo5mtr57fyka7l2lhipfvs5clp6wcp3jbqf3lw4wkdd626hy57a._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
4322b25b29f160a08e809764a5dd86deda2289623331867004f85a905ce47769
njrat
495917ba4c1baf471a277c7d06cc1f9b8e5a4bfb6a89987288ba967ed54e611b
njrat
53777546c28cb8912525bf2f3f0e7a69e29f61755b82cbba7d1a0c0d9c562536
njrat
6013c0ccf38e7be9221db0bc51597cd034cc07ca5c8ca1d0bc16d7b665700512
njrat
7fb40d2c4011f9aa66d25183702ac6872fff070ff9c7433fab6d3785ebc95f4c
njrat
d162aea95889e147b96c2ab4da7cf27ec2538abd149a08f96d993fb7a41b002f
njrat
dbb2f3d9479dbc6f631436059cc68568ede243ce27ee00d667d4b0eb5fa023b3
njrat
dec4cc7a63dd41b7c105a5880da857808127f67b8dc1718a39bc21e7a7073db2
njrat
+ 65 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence suricata
Link:
https://tria.ge/reports/220511-1aqkdacfap/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Checks computer location settings
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
Unpacked files
SH256 hash:
d31dd64e3df970a07d7a59d0f2d65d12dfeb09fb48605daedcb2863f6bc7c77e
MD5 hash:
19032a2236dab8cba5e224fee5d70212
SHA1 hash:
4e569d6be1e2c874e14dc2a72a7b2d36ab916fd0
Link:
https://www.unpac.me/results/0ea2186f-ec18-4bf6-a3b6-880932734651/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.88
Link:
https://yomi.yoroi.company/submissions/d31dd64e3df970a07d7a59d0f2d65d12dfeb09fb48605daedcb2863f6bc7c77e

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:EnigmaStub
Create hunting rule
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Ngrok_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an ngrok.io URL. This can be used as C2 channel
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/269776/

Comments