MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557. 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: 15


Intelligence 15 IOCs 1 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557
SHA3-384 hash: 69dd744efb55dce75306b614fc8cbdf15e12186f44bc48ef6a7173c2c7fe8614050f7e6b5152e5d7da866822901edaf7
SHA1 hash: 1c63553822af742ee07fb27865c51b54b74f1a27
MD5 hash: 37a8ee92838e77cf667250cedd0cecf8
humanhash: georgia-eight-burger-arkansas
File name:37A8EE92838E77CF667250CEDD0CECF8.exe
Download: download sample
Signature njrat
Create hunting rule
File size:513'536 bytes
First seen:2021-08-13 07:56:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:JdwYPCCUKFZbWo5xCQ70ThcE6f7fAwHLDjWoGhX1rvw:ZFfyEAqAp
Threatray 811 similar samples on MalwareBazaar
TLSH T1CBB49312DCE5A931C8AAF5F33262B3F3C73B5E35755C4E0E228C315722389A63AD5646
dhash icon 414555c0d4d44503 (15 x njrat, 14 x BlackNET, 8 x Lucifer)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
91.109.176.9:5552

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
91.109.176.9:5552 https://threatfox.abuse.ch/ioc/184310/

Intelligence

File Origin
# of uploads :
1
# of downloads :
308
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
37A8EE92838E77CF667250CEDD0CECF8.exe
Verdict:
Malicious activity
Analysis date:
2021-08-13 07:57:42 UTC
Tags:
rat njrat bladabindi trojan
Link:
https://app.any.run/tasks/257334c3-aa0f-42eb-87c8-7f241367edb2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/178873/
Detection(s):
Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
Create hunting rule

Win.Trojan.Bladabindi-6192388-0
Create hunting rule

Win.Packed.Bladabindi-6917466-0
Create hunting rule

Win.Dropper.njRAT-7436651-0
Create hunting rule

Win.Packed.Generic-7672854-0
Create hunting rule

Win.Packed.Generic-7672855-0
Create hunting rule

Win.Packed.njRAT-7672853-1
Create hunting rule

Win.Packed.Generic-9795615-0
Create hunting rule

Win.Packed.Generic-9795616-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Sending a UDP request
Creating a process with a hidden window
Creating a window
Creating a file in the %AppData% directory
DNS request
Connection attempt
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Connection attempt to an infection source
Sending a TCP request to an infection source
Enabling autorun by creating a file
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:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4936146a-c204-4dda-a9d8-adbaa2d95c42
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/832213
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
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Detected njRat
Detected unpacking (overwrites its own PE header)
Drops PE files to the startup folder
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
Protects its processes via BreakOnTermination flag
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 464644 Sample: iU7klcMuDp.exe Startdate: 13/08/2021 Architecture: WINDOWS Score: 100 61 imfares.ddns.net 2->61 63 doza122.con-ip.com 2->63 75 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for dropped file 2->79 81 11 other signatures 2->81 10 iU7klcMuDp.exe 7 2->10         started        14 ss.exe 3 2->14         started        16 ss.exe 2->16         started        18 3 other processes 2->18 signatures3 process4 file5 51 C:\Users\user\AppData\...\windowsdefender.exe, PE32 10->51 dropped 53 C:\Users\user\AppData\Local\Temp\Server.exe, PE32 10->53 dropped 55 C:\Users\user\AppData\...\iU7klcMuDp.exe.log, ASCII 10->55 dropped 89 Detected unpacking (overwrites its own PE header) 10->89 20 windowsdefender.exe 3 10->20         started        24 Server.exe 1 5 10->24         started        signatures6 process7 file8 47 C:\Users\user\AppData\Roaming\midia.exe, PE32 20->47 dropped 83 Antivirus detection for dropped file 20->83 85 Multi AV Scanner detection for dropped file 20->85 87 Machine Learning detection for dropped file 20->87 26 midia.exe 4 6 20->26         started        49 C:\Users\user\AppData\Local\Temp\ss.exe, PE32 24->49 dropped 31 ss.exe 4 4 24->31         started        signatures9 process10 dnsIp11 65 doza122.con-ip.com 91.109.188.3, 49739, 49748, 49751 IELOIELOMainNetworkFR France 26->65 57 C:\...\84398377c5556d3df54a82be74cfa960.exe, PE32 26->57 dropped 59 C:\Users\user\AppData\...\tmp9A5F.tmp.exe, PE32 26->59 dropped 91 Antivirus detection for dropped file 26->91 93 Multi AV Scanner detection for dropped file 26->93 95 Detected unpacking (overwrites its own PE header) 26->95 103 2 other signatures 26->103 33 tmp9A5F.tmp.exe 26->33         started        37 netsh.exe 26->37         started        67 imfares.ddns.net 41.107.15.92, 9090 ALGTEL-ASDZ Algeria 31->67 97 Protects its processes via BreakOnTermination flag 31->97 99 Machine Learning detection for dropped file 31->99 101 Creates autostart registry keys with suspicious names 31->101 105 2 other signatures 31->105 39 netsh.exe 1 3 31->39         started        file12 signatures13 process14 file15 45 C:\Users\user\AppData\Local\Temp\win..exe, PE32 33->45 dropped 69 Antivirus detection for dropped file 33->69 71 Detected unpacking (overwrites its own PE header) 33->71 73 Machine Learning detection for dropped file 33->73 41 conhost.exe 37->41         started        43 conhost.exe 39->43         started        signatures16 process17
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-08-10 01:01:07 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ugisjb4wj672nkiajieitppaast3huah5gdqnn4wrc53miu26vlq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683
njrat
46fa7b3768b1f91187f59fb97a88e1efbbe603dc88419c73da07c627e9d57f74
njrat
4f7ee2b1be709d2dfcfb894323ac4b6a3f3b0482c646d49b051769a6e3785239
njrat
69bc3e840c7aeb2c0eaa156a23c7717fb2352c7a4e1a28deedfbc25b79b27b82
njrat
bbbd41df9ee8363af5927a1b8f8b6d373edc69b34069c3a1ff0e5696138a290d
njrat
bc341eccbdfecf1616134d92035e90b0622ec6731e5c5f74418f00ce3033a689
njrat
bf7610bec2416bf141156e8d2b89ef52a2a80fa7b065d717dc9d393be4725206
njrat
d9009371df732bd8b3ccab8b38e9968069503292b112b2b27cb1c3c54814b3ab
njrat
e1c12e80d4fe90ebf246356de9336ba64ce4263eaf2525c27412d534b8a89b29
njrat
f4ae0a96fe157d059c62d52e5934283f6055e822451db81a0bb9f646e98dc310
njrat
+ 801 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat evasion persistence suricata trojan
Link:
https://tria.ge/reports/210813-5c4fvwx9kj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Capture)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Remote Desktop)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop)
Unpacked files
SH256 hash:
a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557
MD5 hash:
37a8ee92838e77cf667250cedd0cecf8
SHA1 hash:
1c63553822af742ee07fb27865c51b54b74f1a27
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/0d2b6210-5987-40b1-8680-9c6672d0c128/
Malware family:
njRat
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a1912487964f/report/overview.html
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/a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557

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:Malware_QA_not_copy
Create hunting rule
Author:Florian Roth
Description:VT Research QA uploaded malware - file not copy.exe
Reference:VT Research QA
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_LightDefender_Njrat_Rule
Create hunting rule
Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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/178873/

Comments