MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b13fbd200b38f02c0278e54483e641a2cfb41acd1a90bed78ac8791d0c1cf5b2. 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 1 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b13fbd200b38f02c0278e54483e641a2cfb41acd1a90bed78ac8791d0c1cf5b2
SHA3-384 hash: 3f1b1132fa08802c6b4155fceacbab4b19ac1fe4125cfa9eff4a3e94a74f14c78d190a50f5e8b0062bcec48f2b7cf3a5
SHA1 hash: 8e49c5a46c86c239ea314513ef80e0e275541e19
MD5 hash: 5916eac72f7396edff49cad9dcd8d80c
humanhash: yankee-high-freddie-kilo
File name:5916EAC72F7396EDFF49CAD9DCD8D80C.exe
Download: download sample
Signature njrat
Create hunting rule
File size:122'880 bytes
First seen:2021-09-01 23:01:52 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 1536:ZVmDCzEXZKQSCqnSGgVM9NXiotLWLUrHOw+rDNdQLp3OwFPQhGIXPTasnmIbOKye:ZADWEXZK+GTypEnUNE3RPodmIbdx
Threatray 293 similar samples on MalwareBazaar
TLSH T19AC3F1F6310EC522C77E60F226742A41621EC234FA06A6E3DE947437CEF698ED538D49
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
107.152.99.41:54893

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
107.152.99.41:54893 https://threatfox.abuse.ch/ioc/207581/

Intelligence

File Origin
# of uploads :
1
# of downloads :
586
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
HazardNuker.exe
Verdict:
Malicious activity
Analysis date:
2021-08-28 22:06:02 UTC
Tags:
rat njrat bladabindi trojan
Link:
https://app.any.run/tasks/8804e3fb-8777-467d-9caa-d75977123924

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/184591/
Detection(s):
SecuriteInfo.com.Trojan.Siggen10.39380.25863.28209.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process with a hidden window
Launching a process
Creating a window
Connection attempt
Enabling the 'hidden' option for recently created files
Enabling the 'hidden' option for files in the %temp% directory
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling a "Do not show hidden files" option
Enabling threat expansion on mass storage devices by creating the autorun.inf autorun file
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/39c4eab5-a48c-49a1-b572-2d5edd674ab6
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/843684
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Changes the view of files in windows explorer (hidden files and folders)
Connects to many ports of the same IP (likely port scanning)
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses cmd line tools excessively to alter registry or file data
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: 476115 Sample: KaD8AA8MRW.exe Startdate: 02/09/2021 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 11 other signatures 2->56 8 KaD8AA8MRW.exe 8 2->8         started        11 tmp8CEA.tmpjihmokkdytlmx.exe 3 2->11         started        13 tmp8CEA.tmpjihmokkdytlmx.exe 2 2->13         started        15 tmp8CEA.tmpjihmokkdytlmx.exe 2 2->15         started        process3 file4 42 C:\Users\...\tmp8CEA.tmpjihmokkdytlmx.exe, PE32 8->42 dropped 44 C:\Users\...\tmp8836.tmpjmboysofpwfkab.exe, PE32 8->44 dropped 46 C:\Users\user\AppData\...\KaD8AA8MRW.exe.log, ASCII 8->46 dropped 17 tmp8CEA.tmpjihmokkdytlmx.exe 7 5 8->17         started        22 tmp8836.tmpjmboysofpwfkab.exe 4 9 8->22         started        process5 dnsIp6 48 107.152.99.41, 49723, 49724, 49725 TOTAL-SERVER-SOLUTIONSUS United States 17->48 36 C:\...\57fb05ec5f5f4ec817027bcb7278a5fa.exe, PE32 17->36 dropped 58 Antivirus detection for dropped file 17->58 60 Multi AV Scanner detection for dropped file 17->60 62 Machine Learning detection for dropped file 17->62 70 5 other signatures 17->70 24 netsh.exe 3 17->24         started        38 C:\Users\user\AppData\Roaming\...\Windows.exe, PE32 22->38 dropped 40 C:\Users\user\AppData\Roaming\...\Windows.exe, PE32 22->40 dropped 64 Protects its processes via BreakOnTermination flag 22->64 66 Uses cmd line tools excessively to alter registry or file data 22->66 68 Creates multiple autostart registry keys 22->68 26 attrib.exe 1 22->26         started        28 attrib.exe 1 22->28         started        file7 signatures8 process9 process10 30 conhost.exe 24->30         started        32 conhost.exe 26->32         started        34 conhost.exe 28->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b13fbd200b38f02c0278e54483e641a2cfb41acd1a90bed78ac8791d0c1cf5b2/
Threat name:
ByteCode-MSIL.Trojan.Cassiopeia
Create hunting rule
Status:
Malicious
First seen:
2021-08-30 10:44:00 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=we732ialhdycyaty4vcihzsbulh3igwndkil5v4kzb4r2da46wza._file
Verdict:
malicious
Similar samples:
18cd7de0cac9b4d2ef7e0078fff0f0263859799b0e5ed93a3bb1d50c2c324752
njrat
5325cdea20361dac7b59b75dd03c25274ae0e40629155f1112ce71549bf0b3e8
njrat
61a8385def4eb1be1e85b3f1bdb3b98721af8f522c675c89f18a24707ad5905a
njrat
766d8e9d2d0de0a0ba2440a847e7eb7da3e69d51331e15a61ec1d25d3d92fc3e
njrat
831d7b676bb75c44df50f40798fe739cb07d4c0b1ee217a7e8fea443f7b00346
njrat
bedceb6fcbd83a80d95fb370f0655fc65ff2a476a97f48e8c646555e01505e78
njrat
d424a08c1e1eac484c029a6ef4008bf991aebf26a86aa02fecd18ad60bb24a0f
njrat
d9d27f03e2f8bc97451296da9a7ddeac39ede3240306fa198bf898434b58c53c
njrat
fe962c612248fb612bcca5eb506dd010e4799fc5f290aa00887644cd9154d05c
njrat
ffec1862f56857ad722abbcb98be7af86f2cf0763371bcb40273f0d884157c32
njrat
+ 283 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion persistence trojan
Link:
https://tria.ge/reports/210901-rmaabn9ma2/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates physical storage devices
Adds Run key to start application
Drops startup file
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
107.152.99.41:54893
Unpacked files
SH256 hash:
6fa2e7b022033e4d51fd6cb74fd9ea9b08e8ca5fa31b6421e6b90438230e7e88
MD5 hash:
84c05d5e48c502a23d843895c2e266bf
SHA1 hash:
8cc17031340f8e57f23db0c3ddda307ceed59c97
Link:
https://www.unpac.me/results/ef83514a-f9ea-434d-9fbe-92c981863f1d/
SH256 hash:
45de09c79e4c484a4d8332d18ecde4542437e9994d3a00bced605ca311b0af70
MD5 hash:
f6a122f265a119271482d8487e877503
SHA1 hash:
3e97f35b7f58b13e56c22653aedab9dfbfafb5bb
Link:
https://www.unpac.me/results/ef83514a-f9ea-434d-9fbe-92c981863f1d/
SH256 hash:
b13fbd200b38f02c0278e54483e641a2cfb41acd1a90bed78ac8791d0c1cf5b2
MD5 hash:
5916eac72f7396edff49cad9dcd8d80c
SHA1 hash:
8e49c5a46c86c239ea314513ef80e0e275541e19
Link:
https://www.unpac.me/results/ef83514a-f9ea-434d-9fbe-92c981863f1d/
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/b13fbd200b38f02c0278e54483e641a2cfb41acd1a90bed78ac8791d0c1cf5b2

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/184591/

Comments