MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d5cf8749638c96e98d4daae21da684b45da35fc3800247054ea6e8275a51a09d. 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: 13


Intelligence 13 IOCs 3 YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d5cf8749638c96e98d4daae21da684b45da35fc3800247054ea6e8275a51a09d
SHA3-384 hash: da7df73bae98b56c7d14390d47aefb02ba3f17220479ff347cba9b770ac28ac3c365d0adfa266df8b8405f65aaa6f399
SHA1 hash: c4af16a65dbdb2a17fe4c3e4811d953c5d501808
MD5 hash: 6bce1d7caa5f71ca7d4620296fc9d775
humanhash: fillet-alaska-ohio-bakerloo
File name:D5CF8749638C96E98D4DAAE21DA684B45DA35FC380024.exe
Download: download sample
Signature njrat
Create hunting rule
File size:95'232 bytes
First seen:2021-09-16 17:36:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:PY3DzgSgmnldjcRoMwrx7Y+DIkIITJbXX0pOt8ux82WXxrjEtCdnl2pi1Rz4Rk3R:6zumlbrq+1NTZ0OojEwzGi1dDLDpgS
Threatray 73 similar samples on MalwareBazaar
TLSH T1B293E84977E53524E1BF5AF79471B2004E38B4871602E39D48F259AA1B33AC44F89FEB
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.142.81.166:15114

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.142.81.166:15114 https://threatfox.abuse.ch/ioc/222671/
3.142.129.56:15114 https://threatfox.abuse.ch/ioc/222672/
3.142.167.54:15114 https://threatfox.abuse.ch/ioc/222673/

Intelligence

File Origin
# of uploads :
1
# of downloads :
554
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
D5CF8749638C96E98D4DAAE21DA684B45DA35FC380024.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-16 17:36:43 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/923cba9b-0a01-46cc-b54e-e38c5b346dc7

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/188491/
Detection(s):
Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
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.Trojan.Generic-6417450-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file in the system32 directory
Launching the process to change the firewall settings
Firewall traversal
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm fingerprint fingerprint greyware keylogger njrat obfuscated packed rat stealer winnti
Link:
https://www.filescan.io/uploads/617524e9a9d585e6d537126a/reports/d01f4941-476c-475c-9859-14f63d18e2ae/overview
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f26e80d2-a8dd-46f1-890e-8f44c27f52ad
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/852296
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to spread to USB devices (.Net source)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 484723 Sample: D5CF8749638C96E98D4DAAE21DA... Startdate: 16/09/2021 Architecture: WINDOWS Score: 100 43 8.tcp.ngrok.io 2->43 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Multi AV Scanner detection for domain / URL 2->55 57 Found malware configuration 2->57 59 11 other signatures 2->59 9 D5CF8749638C96E98D4DAAE21DA684B45DA35FC380024.exe 7 2->9         started        12 e482830431b4f84bd1e9ebb6982c8a62Windows Update.exe 3 2->12         started        14 Microsoft Corporation.exe 3 2->14         started        signatures3 process4 file5 33 C:\Users\user\AppData\Local\Temp\server.exe, PE32 9->33 dropped 35 D5CF8749638C96E98D...A35FC380024.exe.log, ASCII 9->35 dropped 16 server.exe 1 13 9->16         started        process6 dnsIp7 37 13.58.157.220, 15114, 49745, 49747 AMAZON-02US United States 16->37 39 3.142.129.56, 15114, 49772, 49791 AMAZON-02US United States 16->39 41 4 other IPs or domains 16->41 25 C:\system.exe, PE32 16->25 dropped 27 C:\Windows\SysWOW64xplower.exe, PE32 16->27 dropped 29 e482830431b4f84bd1...2Windows Update.exe, PE32 16->29 dropped 31 4 other malicious files 16->31 dropped 45 Antivirus detection for dropped file 16->45 47 Multi AV Scanner detection for dropped file 16->47 49 Machine Learning detection for dropped file 16->49 51 3 other signatures 16->51 21 netsh.exe 1 3 16->21         started        file8 signatures9 process10 process11 23 conhost.exe 21->23         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d5cf8749638c96e98d4daae21da684b45da35fc3800247054ea6e8275a51a09d/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-09-15 23:15:00 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2xhyosldrslotdknvlrb3juewro2gx6dqabeobkou3ucowsrucoq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
09ba1d1497c0886120a435a4990aba55b9ee83c96b294ff66c6fac4295c8b8a1
njrat
2664ca0874468958e3819f05885a3e52ffb392ac416cb5c5618031136aa2b438
njrat
6b0e5c2c2ada15f3690393c85b80e58165a1e4f2d6736c8a76b3995c899c623d
njrat
71a0baa2c07547f62e47907ccfe44574a8eda034270492129c5bd2ed929bb4c6
njrat
a7b419ba495ef1afcb0a243327224d4e088b156c421a4dd6589f980ba943171d
njrat
b0e4ffe4f149f9b6435fec757518ae2ba99293d416a28a3aebda4e877c2013e0
njrat
bbee2132c158e1f3ca52fecfc2e0f3af061336e7dce9ad7a529191bf9d92491e
njrat
cb121700c196dd52b183b9ddf49fbce730bfe191fa1beae93ae6a162b33fd203
njrat
d92f632b039d42bfe46c284f35b8ce4f898576d840fd366becc1d9bcd4ed6a3a
njrat
+ 63 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:njrat family:xmrig botnet:hacked evasion miner suricata trojan
Link:
https://tria.ge/reports/210916-v65raagfhp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in System32 directory
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
xmrig
Malware Config
C2 Extraction:
OC50Y3Aubmdyb2suaW8Strik:MTUxMTQg
Unpacked files
SH256 hash:
d5cf8749638c96e98d4daae21da684b45da35fc3800247054ea6e8275a51a09d
MD5 hash:
6bce1d7caa5f71ca7d4620296fc9d775
SHA1 hash:
c4af16a65dbdb2a17fe4c3e4811d953c5d501808
Link:
https://www.unpac.me/results/f7dcf1c7-e0c4-4d43-9e50-5cb82d9379af/
Malware family:
Winnti Group
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/d5cf8749638c/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/d5cf8749638c96e98d4daae21da684b45da35fc3800247054ea6e8275a51a09d

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_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:MAL_Winnti_Sample_May18_1
Create hunting rule
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:MAL_Winnti_Sample_May18_1_RID3003
Create hunting rule
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
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

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/188491/

Comments