MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fcfa50ca0d4dcf2bb6e96e7b7a223138068f2d6a458d2630757e3bcbe0684aaa. 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 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fcfa50ca0d4dcf2bb6e96e7b7a223138068f2d6a458d2630757e3bcbe0684aaa
SHA3-384 hash: 6ce796a49d78f257e7e4dbed9622d6e833446c2b79eb4b0a6e7617f303cf06ebe2511d03ba96b7a608163b9d9f7861a7
SHA1 hash: 7d0c637530af513dfa2beb7106414717520fd38b
MD5 hash: 253c0a7c550a95472eb3e94bdc958597
humanhash: east-bulldog-bacon-moon
File name:w.exe
Download: download sample
Signature njrat
Create hunting rule
File size:24'064 bytes
First seen:2022-02-01 15:36:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'658 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 384:4+n2650N3qZbATcjRGC5Eo9D46BgnqUhay1ZmRvR6JZlbw8hqIusZzZQ2:nm+71d5XRpcnuE
Threatray 1'014 similar samples on MalwareBazaar
TLSH T16EB21A4E3FA98856C5BC177486B69A5003B0A1470413EE2FCCC564DBAFB36D92D4CAF9
Reporter r3dbU7z
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/229205/
Detection(s):
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

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
Searching for synchronization primitives
Creating a window
Launching a service
Creating a file in the system32 subdirectories
Creating a file
DNS request
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
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:
cmd.exe fingerprint greyware keylogger netsh.exe njrat obfuscated packed rat replace.exe stealer update.exe
Link:
https://www.filescan.io/uploads/61f953a518d1bfdde4e7211b/reports/7e76dbab-76d9-4f81-af6b-68ddf509e10a/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/9de596a9-2f72-4517-b1ea-4fc39bbe06e9
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/931793
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
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
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
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: 564275 Sample: w.exe Startdate: 01/02/2022 Architecture: WINDOWS Score: 100 29 shvchosts.ddns.net 2->29 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for dropped file 2->39 41 12 other signatures 2->41 8 w.exe 5 6 2->8         started        13 w.exe 3 2->13         started        15 w.exe 2 2->15         started        17 w.exe 2 2->17         started        signatures3 process4 dnsIp5 31 shvchosts.ddns.net 8->31 33 192.168.2.1 unknown unknown 8->33 23 C:\...\f7d3b79624476341312866012d0bbf19.exe, PE32 8->23 dropped 25 f7d3b7962447634131...exe:Zone.Identifier, ASCII 8->25 dropped 43 Protects its processes via BreakOnTermination flag 8->43 45 Creates autostart registry keys with suspicious names 8->45 47 Drops PE files to the startup folder 8->47 49 2 other signatures 8->49 19 netsh.exe 1 3 8->19         started        27 C:\Users\user\AppData\Local\...\w.exe.log, ASCII 13->27 dropped file6 signatures7 process8 process9 21 conhost.exe 19->21         started       
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fcfa50ca0d4dcf2bb6e96e7b7a223138068f2d6a458d2630757e3bcbe0684aaa/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-11-10 13:12:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
41 of 43 (95.35%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7t5fbsqnjxhsxnxjnz5xuirrhadi6llkiwgsmmdvpy54xydijkva._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683
njrat
46fa7b3768b1f91187f59fb97a88e1efbbe603dc88419c73da07c627e9d57f74
njrat
4f7ee2b1be709d2dfcfb894323ac4b6a3f3b0482c646d49b051769a6e3785239
njrat
69bc3e840c7aeb2c0eaa156a23c7717fb2352c7a4e1a28deedfbc25b79b27b82
njrat
a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557
njrat
bbbd41df9ee8363af5927a1b8f8b6d373edc69b34069c3a1ff0e5696138a290d
njrat
bc341eccbdfecf1616134d92035e90b0622ec6731e5c5f74418f00ce3033a689
njrat
d9009371df732bd8b3ccab8b38e9968069503292b112b2b27cb1c3c54814b3ab
njrat
e1c12e80d4fe90ebf246356de9336ba64ce4263eaf2525c27412d534b8a89b29
njrat
f4ae0a96fe157d059c62d52e5934283f6055e822451db81a0bb9f646e98dc310
njrat
+ 1'004 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:prueba
Link:
https://tria.ge/reports/220201-s2ggsaggen/
Malware Config
C2 Extraction:
shvchosts.ddns.net:9443
Unpacked files
SH256 hash:
fcfa50ca0d4dcf2bb6e96e7b7a223138068f2d6a458d2630757e3bcbe0684aaa
MD5 hash:
253c0a7c550a95472eb3e94bdc958597
SHA1 hash:
7d0c637530af513dfa2beb7106414717520fd38b
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/aafb0adc-24a0-4f33-96b1-d2a262db152c/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/fcfa50ca0d4d/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/fcfa50ca0d4dcf2bb6e96e7b7a223138068f2d6a458d2630757e3bcbe0684aaa

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: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.

Web download

njrat

Executable exe fcfa50ca0d4dcf2bb6e96e7b7a223138068f2d6a458d2630757e3bcbe0684aaa

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/229205/

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