MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e39fa1f931865fbce1da5c91b4223683333335426733ad41c1bf050a82b44fe. 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 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1e39fa1f931865fbce1da5c91b4223683333335426733ad41c1bf050a82b44fe
SHA3-384 hash: 32e5d8d0281e61b4e166720d944f0cbf71c1107bb03f439ca94fcbee916e5358bbfe7d9083a0e031276d9824054de818
SHA1 hash: feb85c565496e6e33ac90352816d35241aa689ca
MD5 hash: bacc4221cd4d6009fbabd8a7194bb07c
humanhash: sweet-pasta-tennis-north
File name:bacc4221cd4d6009fbabd8a7194bb07c.exe
Download: download sample
Signature njrat
Create hunting rule
File size:44'032 bytes
First seen:2023-05-19 05:21:39 UTC
Last seen:2023-05-20 14:52:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 384:lZyuAFkV6Lk8y85LPjn1m0O6EES+0JKVHbzzIij+ZsNO3PlpJKkkjh/TzF7pWnC2:vHAFksY5ebjn1m0Z2JK2uXQ/ojt2+L
Threatray 397 similar samples on MalwareBazaar
TLSH T14413F84DB694E174D5FF8BF1B4A1B2890B71A017A806930F99F114D94FB3AC09611EE7
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.67.112.102:15728

Intelligence

File Origin
# of uploads :
2
# of downloads :
281
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bacc4221cd4d6009fbabd8a7194bb07c.exe
Verdict:
No threats detected
Analysis date:
2023-05-19 05:22:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/bb62b6a2-ddd8-4fb8-8a8b-cbec8f169bd2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29063.UNOFFICIAL
Create hunting rule

Win.Packed.Msilperseus-9220094-0
Create hunting rule

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

Win.Packed.Krypt-6888233-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the Windows directory
Creating a process from a recently created file
Creating a file
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Creating a window
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd.exe greyware lolbin njrat packed rat
Link:
https://www.filescan.io/uploads/6467077a28df5987c1d9e771/reports/566244a0-8c09-484b-bce4-d1ee2e0de692/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/1e39fa1f931865fbce1da5c91b4223683333335426733ad41c1bf050a82b44fe
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/fbf7083a-6877-4fc5-8e71-53c8dd971c1d
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1236804
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Drops executables to the windows directory (C:\Windows) and starts them
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)
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 869796 Sample: pWx7KXHlwL.exe Startdate: 19/05/2023 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 8 pWx7KXHlwL.exe 1 3 2->8         started        12 Server.exe 1 2->12         started        14 Server.exe 2->14         started        16 4 other processes 2->16 process3 file4 31 C:\Windows\WinRar.exe, PE32 8->31 dropped 33 C:\Users\user\AppData\...\pWx7KXHlwL.exe.log, ASCII 8->33 dropped 57 Drops executables to the windows directory (C:\Windows) and starts them 8->57 18 WinRar.exe 3 4 8->18         started        59 Antivirus detection for dropped file 12->59 61 Multi AV Scanner detection for dropped file 12->61 63 Machine Learning detection for dropped file 12->63 signatures5 process6 dnsIp7 35 3.67.112.102, 15728, 49699, 49700 AMAZON-02US United States 18->35 37 3.67.161.133, 15728, 49701 AMAZON-02US United States 18->37 39 5.tcp.eu.ngrok.io 3.67.62.142, 15728, 49698 AMAZON-02US United States 18->39 27 C:\Users\user\AppData\...\Java update.exe, PE32 18->27 dropped 29 C:\Users\user\AppData\Local\Temp\Server.exe, PE32 18->29 dropped 49 Antivirus detection for dropped file 18->49 51 Multi AV Scanner detection for dropped file 18->51 53 Protects its processes via BreakOnTermination flag 18->53 55 3 other signatures 18->55 23 schtasks.exe 1 18->23         started        file8 signatures9 process10 process11 25 conhost.exe 23->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1e39fa1f931865fbce1da5c91b4223683333335426733ad41c1bf050a82b44fe/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2023-05-15 19:16:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
31 of 37 (83.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dy47uh4tdbs7xtq5uxerwqrdnaztgm2uezztvva4dpyfbkblit7a._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
29c2ba9035cdd613e5cf38e3441a3be91e39c724707659a6473b0e4e24e4bb38
njrat
36157bcd02a5c23a3d161cef0e3aacc07c73e91e0a98cfb9f68852d144d43404
njrat
5ace19621489c3b49a59c73552fea0aed3cd4eae367ead58de6dcfe6bbd96fd1
njrat
72a107eca1b503eba9d0e966f18567a2abad84614d8fec19b9704613c019f2c7
njrat
7c321e4c1f7dee37aab2fd65d50987b9502a3700348ef2ab08d79a952ff27ab7
njrat
9765d205b8b16a05e807f239217a734f37a1d7b263a116ee336d39688bb2ce58
njrat
b83cdea887fae3cec466994818099add164e357acfe347e3ea634ca7f5c09d3b
njrat
e9b4b77b78cfdb18eac7d04f7019657ab3511daf684171a62504bde7b66e3de1
njrat
+ 387 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacker trojan
Link:
https://tria.ge/reports/230519-f2j7fsea9z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Drops startup file
Executes dropped EXE
njRAT/Bladabindi
Malware Config
C2 Extraction:
5.tcp.eu.ngrok.io:15728
Unpacked files
SH256 hash:
1e39fa1f931865fbce1da5c91b4223683333335426733ad41c1bf050a82b44fe
MD5 hash:
bacc4221cd4d6009fbabd8a7194bb07c
SHA1 hash:
feb85c565496e6e33ac90352816d35241aa689ca
Link:
https://www.unpac.me/results/8099a9f5-0322-4754-84c1-ce77c913197d/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1e39fa1f9318/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/1e39fa1f931865fbce1da5c91b4223683333335426733ad41c1bf050a82b44fe

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:malware_Njrat_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:pe_imphash
Create hunting rule
Rule name:RAT_win_njrat
Create hunting rule
Author:KrknSec
Description:Detects njRAT binaries.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.njrat
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:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments