MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e55c31399aacc9290f92d5f269897a82c8674c3a5f2cdd67068cf54b4179269. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1e55c31399aacc9290f92d5f269897a82c8674c3a5f2cdd67068cf54b4179269
SHA3-384 hash: a237dac35ff762c5ed4c3899feedef291b2b3d078be9a39ea71cceb49c185a7a8daa3d17f454ba9311d308f79ae1c413
SHA1 hash: ac53f2f3394bc8be288cffb257481fd8357000a4
MD5 hash: ecfe447d1895357ce925bbe0a3619b7d
humanhash: winner-nevada-fruit-tennessee
File name:1E55C31399AACC9290F92D5F269897A82C8674C3A5F2C.exe
Download: download sample
Signature njrat
Create hunting rule
File size:95'232 bytes
First seen:2022-01-30 06:45:57 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 1536:ygv78lZc+/2HK1j+1zdljEwzGi1dD3DfgS:ygvoc+/2HK1WzdSi1d/4
Threatray 160 similar samples on MalwareBazaar
TLSH T18893F84977E82424E5BF56F39871B2404F34B5471602E79E48F219AA1B33AC44F89FEB
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.140.223.7:16121

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.140.223.7:16121 https://threatfox.abuse.ch/ioc/361843/
3.132.159.158:16121 https://threatfox.abuse.ch/ioc/366503/
3.141.210.37:16121 https://threatfox.abuse.ch/ioc/366504/

Intelligence

File Origin
# of uploads :
1
# of downloads :
302
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1E55C31399AACC9290F92D5F269897A82C8674C3A5F2C.exe
Verdict:
Malicious activity
Analysis date:
2022-01-30 06:49:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9d08f0c0-8a47-400a-a874-a4e71d0a0243

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/225839/
Detection(s):
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

Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Launching the process to change network settings
Searching for synchronization primitives
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Creating a file in the mass storage device
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm autorun bladabindi cmd.exe control.exe explorer.exe fingerprint fingerprint greyware keylogger msconfig.exe netsh.exe njrat obfuscated packed rat replace.exe rundll32.exe schtasks.exe stealer update.exe winnti
Link:
https://www.filescan.io/uploads/61f6342e6cdbe3b8b06b14c9/reports/6357f896-3824-4aea-942c-88f63ed3f290/overview
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/ac2b80b3-58ff-459e-96e9-1784f291a286
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/930316
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)
Creates autorun.inf (USB autostart)
Disables the Windows task manager (taskmgr)
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
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: 562794 Sample: 1E55C31399AACC9290F92D5F269... Startdate: 30/01/2022 Architecture: WINDOWS Score: 100 37 6.tcp.ngrok.io 2->37 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for dropped file 2->49 51 9 other signatures 2->51 9 1E55C31399AACC9290F92D5F269897A82C8674C3A5F2C.exe 7 2->9         started        signatures3 process4 file5 29 C:\Users\user\AppData\Roaming\server.exe, PE32 9->29 dropped 31 1E55C31399AACC9290...8674C3A5F2C.exe.log, ASCII 9->31 dropped 12 server.exe 2 8 9->12         started        process6 dnsIp7 39 18.189.106.45, 16121, 49792, 49798 AMAZON-02US United States 12->39 41 3.132.159.158, 16121, 49766, 49768 AMAZON-02US United States 12->41 43 4 other IPs or domains 12->43 33 C:\Umbrella.flv.exe, PE32 12->33 dropped 35 C:\autorun.inf, Microsoft 12->35 dropped 53 Antivirus detection for dropped file 12->53 55 Multi AV Scanner detection for dropped file 12->55 57 Creates autorun.inf (USB autostart) 12->57 59 4 other signatures 12->59 17 netsh.exe 3 12->17         started        19 netsh.exe 1 3 12->19         started        21 netsh.exe 3 12->21         started        file8 signatures9 process10 process11 23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        27 conhost.exe 21->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1e55c31399aacc9290f92d5f269897a82c8674c3a5f2cdd67068cf54b4179269/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-12-02 21:21:00 UTC
File Type:
PE (.Net Exe)
AV detection:
38 of 43 (88.37%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
376c8edbafb727e3c48081ac3c6751dd6b73e73462c2a26794b37cd44be4344d
njrat
495135344619bad53ac992d52fb75b420130b856b65ceabad2748a4236bbd322
njrat
6000cb4765d6219aeea0210a1ecec6af293e3ee6e330f560e30c043987f5aeb7
njrat
71a0baa2c07547f62e47907ccfe44574a8eda034270492129c5bd2ed929bb4c6
njrat
87ac8c78f79072416a0d38c7509602d28e367e990f31cbfaa667b59292391c99
njrat
a80220c129dabdfc9a8159b120994e4e8a21b8c7a4709b8c6df717401d7b3924
njrat
f829bd45e12075c0d95bc76b14ea211f59772e2bf05ecbe32ff336cb6d0ea284
njrat
+ 150 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:deaz evasion trojan
Link:
https://tria.ge/reports/220130-hjm7hageem/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops autorun.inf file
Loads dropped DLL
Disables Task Manager via registry modification
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
Ni50Y3Aubmdyb2suaW8Strik:MTYxMjE=
Unpacked files
SH256 hash:
1e55c31399aacc9290f92d5f269897a82c8674c3a5f2cdd67068cf54b4179269
MD5 hash:
ecfe447d1895357ce925bbe0a3619b7d
SHA1 hash:
ac53f2f3394bc8be288cffb257481fd8357000a4
Link:
https://www.unpac.me/results/961ca657-8923-4335-80e7-a1e16fd085b4/
Malware family:
Winnti Group
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/1e55c31399aa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.88
Link:
https://yomi.yoroi.company/submissions/1e55c31399aacc9290f92d5f269897a82c8674c3a5f2cdd67068cf54b4179269

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_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
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: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/225839/

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