MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a47e2de20c3ce0e0f4478f2914332bbf2d1c800b980b004f32987a78e77716f6. 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 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a47e2de20c3ce0e0f4478f2914332bbf2d1c800b980b004f32987a78e77716f6
SHA3-384 hash: 62098fb8a1dd5183af2a99af7670e9ac72ec6f048d4b34c9e4dd1f2249bb4f67c6c7c4178396ccee989a467747d903de
SHA1 hash: d98dc6a3685489844785d0588d4eb9976808d0bf
MD5 hash: b3f4aca3b2049d8f3f6f5c9612095a65
humanhash: charlie-oranges-iowa-table
File name:a47e2de20c3ce0e0f4478f2914332bbf2d1c800b980b004f32987a78e77716f6
Download: download sample
Signature njrat
Create hunting rule
File size:97'280 bytes
First seen:2021-02-28 07:03:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 1536:4JtX53UmMvXTy2JKXaeeY1nzx044z+MejTsxl4yEp5dhJpor2C1nCsAJwQ0p2frN:uUms9Jdwz64LM/BEsrjCsdiuUJ
Threatray 14 similar samples on MalwareBazaar
TLSH BE930210F3D5D979D1BBC73D2CB331495273DB4ABB162A1FE80584274A9B3024D74AA5
Reporter JAMESWT_WT
Tags:NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a47e2de20c3ce0e0f4478f2914332bbf2d1c800b980b004f32987a78e77716f6
Verdict:
Suspicious activity
Analysis date:
2021-02-28 07:09:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/21238608-8473-4998-8277-ccb2f9b489af

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/119731/
Detection(s):
Win.Packed.Razy-7334624-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
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.
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/621278
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
Changes the view of files in windows explorer (hidden files and folders)
Contains functionality to log keystrokes (.Net Source)
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)
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 359632 Sample: IG7Ds3VtKl Startdate: 28/02/2021 Architecture: WINDOWS Score: 100 81 remalarm.ddns.net 2->81 85 Malicious sample detected (through community Yara rule) 2->85 87 Antivirus detection for dropped file 2->87 89 Antivirus / Scanner detection for submitted sample 2->89 91 10 other signatures 2->91 11 IG7Ds3VtKl.exe 3 2->11         started        14 IG7Ds3VtKl.exe 2 2->14         started        16 Client.exe 2->16         started        18 Client.exe 2->18         started        signatures3 process4 file5 79 C:\Users\user\AppData\...\IG7Ds3VtKl.exe.log, ASCII 11->79 dropped 20 IG7Ds3VtKl.exe 1 2 11->20         started        23 IG7Ds3VtKl.exe 11->23         started        25 IG7Ds3VtKl.exe 14->25         started        27 IG7Ds3VtKl.exe 14->27         started        29 Client.exe 16->29         started        31 Client.exe 16->31         started        33 Client.exe 16->33         started        process6 file7 77 C:\Users\user\AppData\Roaming\Client.exe, PE32 20->77 dropped 35 Client.exe 3 20->35         started        38 schtasks.exe 1 20->38         started        40 schtasks.exe 1 20->40         started        42 schtasks.exe 1 25->42         started        44 schtasks.exe 1 25->44         started        46 schtasks.exe 29->46         started        48 schtasks.exe 29->48         started        process8 signatures9 93 Antivirus detection for dropped file 35->93 95 Multi AV Scanner detection for dropped file 35->95 97 Machine Learning detection for dropped file 35->97 99 Drops PE files to the startup folder 35->99 50 Client.exe 4 3 35->50         started        55 conhost.exe 38->55         started        57 conhost.exe 40->57         started        59 conhost.exe 42->59         started        61 conhost.exe 44->61         started        63 conhost.exe 46->63         started        process10 dnsIp11 83 remalarm.ddns.net 94.134.153.177, 1604 VERSATELDE Germany 50->83 75 C:\Users\user\AppData\Roaming\...\Client.exe, PE32 50->75 dropped 101 Protects its processes via BreakOnTermination flag 50->101 103 Changes the view of files in windows explorer (hidden files and folders) 50->103 65 schtasks.exe 1 50->65         started        67 schtasks.exe 1 50->67         started        file12 signatures13 process14 process15 69 conhost.exe 65->69         started        71 conhost.exe 65->71         started        73 conhost.exe 67->73         started       
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a47e2de20c3ce0e0f4478f2914332bbf2d1c800b980b004f32987a78e77716f6/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2021-02-25 15:05:08 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ur7c3yqmhtqob5chr4urimzlx4wrzaaltafqatzstb5hrz3xc33a._file
Verdict:
malicious
Similar samples:
11edfbb9381d84595491324562ad13b2c218abb38eb97b786e52ab70eb67ce25
njrat
1253331034363bc37bfe3c9b2664ef9ed65dc8422a25e70cba57e03a83e0d3e9
njrat
4cbeb41aeb9ee9c5133c7486d11c493d6f5e8f32b908ae6c10ede213f6f8c43b
njrat
5979eee66faff5910c181a7b1af0111d68a0feda3dd974306f8e5c5624af7cdf
njrat
62e099194f9f946b0c0dd4c474c862dadb605101b87dc2eb7b8e43f6510ae3d1
njrat
b4d493227e334e826fbb6dcbca9110478d6f23596b1c0d141b38e97d7d8ade33
njrat
ca4565f6d34227c8a57904ffcfd3c6c068ae5483bad28bb104c58ab569511c35
njrat
ce66906eb9b0e76d2b0e9b313e84c543412ae3ab598e57dce0b913759946254e
njrat
e3a10025b0133fbeb2e454ae7dfec1a6f0e49fee612f7139387f9396434762c6
njrat
f00f5f7f81d246a3d2c6aacef673f85de79e96a460641482d6da42b638d4ad2a
njrat
+ 4 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210228-tj7wa79y6x/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
1ab513b4e7fc8f5dd421d476bda7df40d4ef1e9327476e6ca25ed5798ef9a07f
MD5 hash:
55ae1e2f5d7ec1fdc54e2fedd0370c51
SHA1 hash:
b85f69d4071b1323c1eda183b8e667e4319de60d
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/d8ee1d5e-39a2-423d-8724-3a0245a435dd/
SH256 hash:
a47e2de20c3ce0e0f4478f2914332bbf2d1c800b980b004f32987a78e77716f6
MD5 hash:
b3f4aca3b2049d8f3f6f5c9612095a65
SHA1 hash:
d98dc6a3685489844785d0588d4eb9976808d0bf
Link:
https://www.unpac.me/results/d8ee1d5e-39a2-423d-8724-3a0245a435dd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Azorult
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a47e2de20c3ce0e0f4478f2914332bbf2d1c800b980b004f32987a78e77716f6

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:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
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:INDICATOR_EXE_Packed_NyanXCat_CSharpLoader
Create hunting rule
Author:ditekSHen
Description:Detects .NET executables utilizing NyanX-CAT C# Loader
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:win_njrat_g1
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de>
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/119731/

Comments