MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db0031942b3f6b1e7558e8754a068be14f4fc11000f2efd1139b985c2438d301. 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: 12


Intelligence 12 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: db0031942b3f6b1e7558e8754a068be14f4fc11000f2efd1139b985c2438d301
SHA3-384 hash: bfef5903fb9a4f81fe5dba41e7c4cee5f9cbeb7e7ccb662fef4f547004c0888ff91059c161eeb2cabb01118425776e41
SHA1 hash: 0b8c52c9fe50ae78bee2b0edab9bbd2c7fea54a8
MD5 hash: 6ef5711bfeba4212669fb6de0969b90f
humanhash: carbon-music-butter-mango
File name:DB0031942B3F6B1E7558E8754A068BE14F4FC11000F2E.exe
Download: download sample
Signature njrat
Create hunting rule
File size:44'032 bytes
First seen:2021-10-07 04:50:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:JZyUo+5ctOnwtOyW6jlyci8EqnQiMI472IVa9D9O5UE5QzwBlpJNakkjh/TzF7pq:LxqAwt/W6pyci8EqQ6477vQO+LG+L
Threatray 107 similar samples on MalwareBazaar
TLSH T11C13E78CB784E175D5FF8BF1B492B2890B71A017A902D30F99F154D98BB3AC09611EE7
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
1.234.37.232:8080

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
1.234.37.232:8080 https://threatfox.abuse.ch/ioc/231134/

Intelligence

File Origin
# of uploads :
1
# of downloads :
295
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DB0031942B3F6B1E7558E8754A068BE14F4FC11000F2E.exe
Verdict:
Malicious activity
Analysis date:
2021-10-07 04:52:40 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/69b7cce4-f9de-4767-b6f7-2dfce563915f

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/195591/
Detection(s):
Win.Packed.Generic-7672855-0
Create hunting rule

Win.Packed.njRAT-7672853-1
Create hunting rule

Win.Packed.Msilperseus-9220094-0
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 file in the %temp% directory
Creating a process from a recently created file
Launching a process
Creating a process with a hidden window
Enabling the 'hidden' option for files in the %temp% directory
Creating a window
DNS request
Connection attempt
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm bladabindi darkcomet greyware keylogger njrat obfuscated packed rat
Link:
https://www.filescan.io/uploads/615e7cbae3d213d202b96112/reports/f851153c-ca9b-41f1-9ccf-e120976c0e42/overview
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5ba63ef2-3adf-4207-86f4-85663598a91d
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/866013
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes security center settings (notifications, updates, antivirus, firewall)
Detected njRat
Drops PE files to the startup folder
Drops PE files with benign system names
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
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
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: 498438 Sample: DB0031942B3F6B1E7558E8754A0... Startdate: 07/10/2021 Architecture: WINDOWS Score: 100 45 zazs.codns.com 2->45 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for dropped file 2->53 55 10 other signatures 2->55 9 DB0031942B3F6B1E7558E8754A068BE14F4FC11000F2E.exe 1 5 2->9         started        13 Server.exe 3 2->13         started        15 svchost.exe 2->15         started        17 18 other processes 2->17 signatures3 process4 dnsIp5 37 C:\Users\user\AppData\Local\...\svchost.exe, PE32 9->37 dropped 39 DB0031942B3F6B1E75...4FC11000F2E.exe.log, ASCII 9->39 dropped 65 Drops PE files with benign system names 9->65 20 svchost.exe 3 6 9->20         started        67 Antivirus detection for dropped file 13->67 69 Multi AV Scanner detection for dropped file 13->69 71 Machine Learning detection for dropped file 13->71 73 Changes security center settings (notifications, updates, antivirus, firewall) 15->73 25 MpCmdRun.exe 15->25         started        41 127.0.0.1 unknown unknown 17->41 43 192.168.2.1 unknown unknown 17->43 file6 signatures7 process8 dnsIp9 47 zazs.codns.com 1.234.37.232, 49762, 49771, 49795 SKB-ASSKBroadbandCoLtdKR Korea Republic of 20->47 33 C:\Users\user\AppData\...\Java update.exe, PE32 20->33 dropped 35 C:\Users\user\AppData\Local\Temp\Server.exe, PE32 20->35 dropped 57 Antivirus detection for dropped file 20->57 59 System process connects to network (likely due to code injection or exploit) 20->59 61 Multi AV Scanner detection for dropped file 20->61 63 4 other signatures 20->63 27 schtasks.exe 1 20->27         started        29 conhost.exe 25->29         started        file10 signatures11 process12 process13 31 conhost.exe 27->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/db0031942b3f6b1e7558e8754a068be14f4fc11000f2efd1139b985c2438d301/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2018-07-26 06:37:00 UTC
AV detection:
27 of 28 (96.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3maddfblh5vr45ky5b2uubul4fhu7qiqadzo7uittomfyjby2maq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
20aa773ce4d4e0709faeba02937cc789c114e726f6336c1dcd6c206f00514af2
njrat
2cf4d30e042a26f08b675f11691ab710d1f6a9784e6e4a5408395bb3e1c927dc
njrat
30f453098353ecf9291b6e48dc70bfb264c6602db206e8e99d4e9d86c4666fd8
njrat
3485a54aaddd3a9993a458638d67aca67ef59723547f0519c1e7b2d7555e0670
njrat
56385a71c5adb74bf604183827abc5769a169ccc70f0631c4fbee0ed4d71155f
njrat
d99dab4fd5138c6eda388db1f502b70af074b4080088c2eaa363e382722efbd8
njrat
dadc79b9206cdfbdd2a5b179f483d07e1c339798cc0f9368367c3bc919c73c29
njrat
df28b4119e175dc405ccc0b6a8602a5535e6fcf4c3e0878537911a5395fe7315
njrat
e2136c8268bb5be4fe2a295a9bb9250c00437452cd3d65822290e3a68b1fb94b
njrat
eb086d6c54841616485b2ad99ed2e2e2ebc21f01e6c5a58611ac914f70b5042f
njrat
+ 97 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:zombie persistence trojan
Link:
https://tria.ge/reports/211007-fgt6xsbgh9/
Behaviour
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
njRAT/Bladabindi
Malware Config
C2 Extraction:
zazs.codns.com:8080
Unpacked files
SH256 hash:
db0031942b3f6b1e7558e8754a068be14f4fc11000f2efd1139b985c2438d301
MD5 hash:
6ef5711bfeba4212669fb6de0969b90f
SHA1 hash:
0b8c52c9fe50ae78bee2b0edab9bbd2c7fea54a8
Link:
https://www.unpac.me/results/237fe801-44dd-4a54-b0e1-2effa309bcc6/
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/db0031942b3f6b1e7558e8754a068be14f4fc11000f2efd1139b985c2438d301

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: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/195591/

Comments