MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac. 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: 16


Intelligence 16 IOCs YARA 19 File information Comments
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SHA256 hash: ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac
SHA3-384 hash: 36aded3039eb01ba2ef8835ff32d01fec58061c30f66575bd5c461782df7192b3f77f74843eb8b9b15774c925ac62683
SHA1 hash: 08d07001375bca7cbd091d2e66ccc9191a739928
MD5 hash: d90fddc6fbbbe933dc80a7a6bb1f93a1
humanhash: beer-washington-video-south
File name:ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac
Download: download sample
Signature njrat
Create hunting rule
File size:33'280 bytes
First seen:2024-10-10 11:17:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'859 x AgentTesla, 19'785 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 768:chwtpeE7wP7kY3wbXwEhWgw3ccrfL9tr:XujJgMSWgw3cafZtr
Threatray 115 similar samples on MalwareBazaar
TLSH T12DE2084D73A48923C6BE47B84E31954607F1C14B5512EBAF8EC960DA1EA7BE41E00EF7
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter adrian__luca
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
431
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac
Verdict:
Malicious activity
Analysis date:
2024-10-10 11:17:18 UTC
Tags:
rat njrat bladabindi
Link:
https://app.any.run/tasks/b467c4fb-f0dd-4000-a4f6-8e9233660b90

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Generic-9795615-0
Create hunting rule

Win.Dropper.njRAT-10015886-0
Create hunting rule

Win.Dropper.Nanocore-10030076-0
Create hunting rule

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

Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
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Win.Trojan.Bladabindi-6192388-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6707b7eff936b5621b0c3d8d
Tags:
Bladabindi Powershell Autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autorun bladabindi cmd fingerprint keylogger lolbin lolbin netsh njrat rat stealer vbnet
Link:
https://www.filescan.io/uploads/6707b7ec3c47a73370b7c6a1/reports/1ab4b18d-16d3-4ff9-b206-1fc8fa240444/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac
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.
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f69f1622-9ade-4043-a4cc-a5c92e1c966e
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.phis.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1530729
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
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)
Contains functionality to spread to USB devices (.Net source)
Creates autostart registry keys with suspicious names
Disables zone checking for all users
Drops PE files to the startup folder
Drops PE files to the user root directory
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
Suricata IDS alerts for network traffic
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: 1530729 Sample: Aannir04sD.exe Startdate: 10/10/2024 Architecture: WINDOWS Score: 100 33 Suricata IDS alerts for network traffic 2->33 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 12 other signatures 2->39 8 Aannir04sD.exe 3 4 2->8         started        12 gvfbdjsk.exe 2 2->12         started        14 gvfbdjsk.exe 2 2->14         started        16 gvfbdjsk.exe 2 2->16         started        process3 file4 29 C:\Users\user\gvfbdjsk.exe, PE32 8->29 dropped 49 Drops PE files to the user root directory 8->49 18 gvfbdjsk.exe 4 5 8->18         started        signatures5 process6 dnsIp7 31 79.137.199.150, 1337, 49705, 49709 PSKSET-ASRU Russian Federation 18->31 27 C:\...\18d2c532a0ff1b1dbbfe3b715d055316.exe, PE32 18->27 dropped 41 Antivirus detection for dropped file 18->41 43 Multi AV Scanner detection for dropped file 18->43 45 Machine Learning detection for dropped file 18->45 47 6 other signatures 18->47 23 netsh.exe 2 18->23         started        file8 signatures9 process10 process11 25 conhost.exe 23->25         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2024-09-27 00:19:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
34 of 38 (89.47%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5t7ofzk26ohsbbdb4apkzd4nisppebebhnj2trvz3b7nxk55wgwa._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
00b11363c9cd9f5e944789c5c8c8f190cb8952e572fcad351c10a0ffe4809765
njrat
18592feb5a627601ed4565242713690979eb24ccb0936a03d96e4b2aded6fd05
njrat
46db080a3de7815c953820d44bb47f414c5edfe9ae083c3da0a9c5b3eb936028
njrat
81553f2de290ddf3a7dd40e0a8877781c8ac8cfb0fe5d0159a2b3ce3eda4c6f6
njrat
9e4ab954433fbb3105d9a23be20e66bc2d369fa29d034b40eaa7f2c6a88d2c6e
njrat
b99755b5ef8145a14c9997d0702cad519f1768978c5b985da7bfc720d7de4152
njrat
c43d1164e57451c08dd6f658c6e8c393d989c5c28938793e2d4a2345ab59593d
njrat
cd0133076bb2594d02cc1a9ef7976ce41006ebc60c7f84b64a8199b4801f2ec5
njrat
dd0034d34e27eec19757f2d0b46c617fad9f461380aae7c79cb9cfd5f1df0a45
njrat
ff25936286221005b27254e316c0622a3e828791a2988c163613475263127c0f
njrat
+ 105 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery evasion persistence privilege_escalation
Link:
https://tria.ge/reports/241010-nd9q7szfjq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
Verdict:
Malicious
Tags:
rat njrat
YARA:
malware_Njrat_strings win_njrat_strings_oct_2023 Windows_Trojan_Njrat_30f3c220 MAL_Njrat MALWARE_Win_NjRAT JPCERTCC_Njrat
Link:
https://app.threat.zone/submission/78d04015-c19c-47db-9fbe-937d051177d2
Unpacked files
SH256 hash:
ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac
MD5 hash:
d90fddc6fbbbe933dc80a7a6bb1f93a1
SHA1 hash:
08d07001375bca7cbd091d2e66ccc9191a739928
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Njrat
Create hunting rule
MALWARE_Win_NjRAT
Create hunting rule
CN_disclosed_20180208_c
Create hunting rule
win_njrat_strings_oct_2023
Create hunting rule
Link:
https://www.unpac.me/results/b324d6b7-396a-4c35-8dd7-2f0718f12eaa/
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/ecfee2e55af38f208461e01eac8f8d449ef204813b53a9c6b9d87edbabbdb1ac

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 (Nextron Systems)
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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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 / NjRAT Golden
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
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: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:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_strings_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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