MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d443d374a1941217335cca576c402e756c1ac5f56f6e0e33868ddef4672c82c. 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: 14


Intelligence 14 IOCs 1 YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d443d374a1941217335cca576c402e756c1ac5f56f6e0e33868ddef4672c82c
SHA3-384 hash: f5fef1d2d78baa3a196f4254541f8edcee5d9ac5266a97d1960f9c5553f7eb59647aaf77148e58dec54e665242eb687f
SHA1 hash: cb96da4fd22d2fc5e652b13622937f51966bff0d
MD5 hash: b45d6614550a40d86cf25c0abca01ee3
humanhash: december-leopard-sink-potato
File name:b45d6614550a40d86cf25c0abca01ee3.exe
Download: download sample
Signature njrat
Create hunting rule
File size:24'064 bytes
First seen:2022-07-21 05:25:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 384:sc6CqbFYh3odrVCGiHssDB4b6i6fgpEupNXRmRvR6JZlbw8hqIusZzZOf:rIU0tw3RpcnuL
Threatray 1'586 similar samples on MalwareBazaar
TLSH T182B23A0E3FA98856C4AC17748AB5965043B491870423EE2FCCC564DBAFB3BD91D4CAF8
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13101/52/3)
8.6% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
141.255.147.61:5552

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
141.255.147.61:5552 https://threatfox.abuse.ch/ioc/838956/

Intelligence

File Origin
# of uploads :
1
# of downloads :
326
Origin country :
n/a
Vendor Threat Intelligence
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/293053/
Detection(s):
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

Win.Packed.Bladabindi-6804148-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
DNS request
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
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi cmd.exe fingerprint greyware keylogger njrat packed rat stealer windows
Link:
https://www.filescan.io/uploads/62d8e3a7ee649612ac5e95af/reports/56c0eaca-ed15-4042-a06b-259b930a9f26/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/53f454d3-5d2b-4a21-b9f9-3faf79c76033
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1038349
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
Drops PE files to the user root directory
Drops PE files with benign system names
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 domain / URL
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
System process connects to network (likely due to code injection or exploit)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 670845 Sample: cYzxzmjENe.exe Startdate: 21/07/2022 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 14 other signatures 2->48 8 cYzxzmjENe.exe 1 5 2->8         started        12 svchost.exe 2->12         started        14 svchost.exe 1 1 2->14         started        17 8 other processes 2->17 process3 dnsIp4 34 C:\Users\user\svchost.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\...\cYzxzmjENe.exe.log, ASCII 8->36 dropped 58 Drops PE files to the user root directory 8->58 60 Drops PE files with benign system names 8->60 19 svchost.exe 4 5 8->19         started        62 Changes security center settings (notifications, updates, antivirus, firewall) 12->62 24 MpCmdRun.exe 1 12->24         started        40 127.0.0.1 unknown unknown 14->40 file5 signatures6 process7 dnsIp8 38 sorriso062.ddns.net 141.255.144.211, 49715, 5552 IELOIELOMainNetworkFR France 19->38 32 C:\...\120dad35a199a880463dc3528eb8814d.exe, PE32 19->32 dropped 50 Antivirus detection for dropped file 19->50 52 System process connects to network (likely due to code injection or exploit) 19->52 54 Multi AV Scanner detection for dropped file 19->54 56 6 other signatures 19->56 26 netsh.exe 1 3 19->26         started        28 conhost.exe 24->28         started        file9 signatures10 process11 process12 30 conhost.exe 26->30         started       
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4d443d374a1941217335cca576c402e756c1ac5f56f6e0e33868ddef4672c82c/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-07-16 22:51:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
39 of 41 (95.12%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jvcd2n2kdfasc4zvzssxnrac45lmdlc7k33obyzyndo66rtszawa._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683
njrat
4f7ee2b1be709d2dfcfb894323ac4b6a3f3b0482c646d49b051769a6e3785239
njrat
69bc3e840c7aeb2c0eaa156a23c7717fb2352c7a4e1a28deedfbc25b79b27b82
njrat
a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557
njrat
bbbd41df9ee8363af5927a1b8f8b6d373edc69b34069c3a1ff0e5696138a290d
njrat
bc341eccbdfecf1616134d92035e90b0622ec6731e5c5f74418f00ce3033a689
njrat
d9009371df732bd8b3ccab8b38e9968069503292b112b2b27cb1c3c54814b3ab
njrat
e1c12e80d4fe90ebf246356de9336ba64ce4263eaf2525c27412d534b8a89b29
njrat
f4ae0a96fe157d059c62d52e5934283f6055e822451db81a0bb9f646e98dc310
njrat
fd44aa995fef8a05f659c47ffeb958ebd347b458387216263cc316fb8e05300a
njrat
+ 1'576 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:caixa novo evasion persistence trojan
Link:
https://tria.ge/reports/220721-f4ve7sddhj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
sorriso062.ddns.net:5552
Unpacked files
SH256 hash:
4d443d374a1941217335cca576c402e756c1ac5f56f6e0e33868ddef4672c82c
MD5 hash:
b45d6614550a40d86cf25c0abca01ee3
SHA1 hash:
cb96da4fd22d2fc5e652b13622937f51966bff0d
Detections:
win_njrat_g1
Create hunting rule
win_njrat_w1
Create hunting rule
Link:
https://www.unpac.me/results/4e657d73-0d12-4495-96b7-d41269672df2/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4d443d374a19/report/overview.html
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/4d443d374a1941217335cca576c402e756c1ac5f56f6e0e33868ddef4672c82c

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:CN_disclosed_20180208_c
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:malware_Njrat_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
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:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
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/293053/

Comments