MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87ac8c78f79072416a0d38c7509602d28e367e990f31cbfaa667b59292391c99. 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: 14


Intelligence 14 IOCs 1 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87ac8c78f79072416a0d38c7509602d28e367e990f31cbfaa667b59292391c99
SHA3-384 hash: b497468835d19fa11df92a3ff078c00dfba0eb48346e929e1d8dc6d96c007c901fe12caf1e9bb9390ca9ad5e7e47af5e
SHA1 hash: db9b0ceb9ce3aca3403892f1b43e764891e3a047
MD5 hash: a359db2841e75ed24c3d39b7af55ea31
humanhash: minnesota-missouri-friend-six
File name:a359db2841e75ed24c3d39b7af55ea31.exe
Download: download sample
Signature njrat
Create hunting rule
File size:95'232 bytes
First seen:2021-12-30 00:35:50 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 768:CY33UfnWXxyFcxovUKUJuROprXtWNzeYhYbmXxrjEtCdnl2pi1Rz4Rk3NsGdp7gM:9U/WhIUKcuOJ2PhBjEwzGi1dDdD7gS
Threatray 114 similar samples on MalwareBazaar
TLSH T1F693E74977E56524E0BF56F79871F2004F74B44B1612E39E48F219AA0A33AC44F89FEB
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.128.107.74:13697

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.128.107.74:13697 https://threatfox.abuse.ch/ioc/289251/

Intelligence

File Origin
# of uploads :
1
# of downloads :
417
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a359db2841e75ed24c3d39b7af55ea31.exe
Verdict:
Malicious activity
Analysis date:
2021-12-30 00:37:24 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/e836b2f7-ff8f-461b-a168-1086a2cd036c

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/216829/
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 with a hidden window
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Launching the process to change the firewall settings
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm autorun bladabindi fingerprint fingerprint greyware keylogger njrat obfuscated packed rat stealer winnti
Link:
https://www.filescan.io/uploads/61ccfef6ec6c6c14a9fca9f1/reports/5b78e71a-d374-482a-987b-1ea618ea23a6/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/e62de2b5-4aad-4aff-bb3b-57ed822bde0f
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/913954
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
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 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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/87ac8c78f79072416a0d38c7509602d28e367e990f31cbfaa667b59292391c99/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-12-28 02:45:00 UTC
File Type:
PE (.Net Exe)
AV detection:
27 of 28 (96.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q6wiy6hxsbzec2qnhddvbfqc2khdm7uzb4y4x6vgm62zferzdsmq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
01a7fccd0aa64adcaa13e7109f8c969cabefcba820efaafbd75c6cd28490fe64
njrat
376c8edbafb727e3c48081ac3c6751dd6b73e73462c2a26794b37cd44be4344d
njrat
71a0baa2c07547f62e47907ccfe44574a8eda034270492129c5bd2ed929bb4c6
njrat
87b9a82fa05019692e89dc944a4fe1ab669d1c844abfd509c7e3648a024d4a73
njrat
b0e4ffe4f149f9b6435fec757518ae2ba99293d416a28a3aebda4e877c2013e0
njrat
bbee2132c158e1f3ca52fecfc2e0f3af061336e7dce9ad7a529191bf9d92491e
njrat
+ 104 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:test evasion suricata
Link:
https://tria.ge/reports/211230-axyldseaar/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies Windows Firewall
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
Malware Config
C2 Extraction:
FRANSESCOi50Y3Aubmdyb2suaW8Strik:MTM2OTc=
Unpacked files
SH256 hash:
87ac8c78f79072416a0d38c7509602d28e367e990f31cbfaa667b59292391c99
MD5 hash:
a359db2841e75ed24c3d39b7af55ea31
SHA1 hash:
db9b0ceb9ce3aca3403892f1b43e764891e3a047
Link:
https://www.unpac.me/results/c6765246-0f53-4326-9679-4be42aa6b293/
Malware family:
Winnti Group
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/87ac8c78f790/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/87ac8c78f79072416a0d38c7509602d28e367e990f31cbfaa667b59292391c99

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: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/216829/

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