MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12d1db8cc7a9ab91ed16b33f54cefb4aac4c323d7c2eb078b71e39c1719baa9d. 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: 5


Intelligence 5 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 12d1db8cc7a9ab91ed16b33f54cefb4aac4c323d7c2eb078b71e39c1719baa9d
SHA3-384 hash: 667c23357f100b0574a32ec85a6891fdfda39d83c7d344991978cb132409f50f73a7ac1a8526cf4bd53f1d9c3bc8beb8
SHA1 hash: 3593065513e82dc78fc729f6eedc321cd1d386a4
MD5 hash: 06c25e2b926e368a5736192d8194fa10
humanhash: saturn-helium-lake-mirror
File name:SKMC25832100083932157.jar
Download: download sample
Signature njrat
Create hunting rule
File size:2'361 bytes
First seen:2021-04-07 15:05:24 UTC
Last seen:Never
File type:Java file jar
MIME type:application/java-archive
ssdeep 48:9gltgw4tggRfjsgiXF8RrStrHCAGOVYWeeapjYxhrLx7stGIGNExMDsh:ylC1CgfjRiCOwFODatehpYtGIGNExMDy
TLSH 1641D8F92FFAC0BAE802AD7853659239D1A9724A350DD62553514D832CB8C930F32A7F
Reporter abuse_ch
Tags:jar NjRAT RAT


Avatar
abuse_ch
njrat C2:
103.151.123.132:9243

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
103.151.123.132:9243 https://threatfox.abuse.ch/ioc/7180/

Intelligence

File Origin
# of uploads :
1
# of downloads :
178
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SKMC25832100083932157.jar
Verdict:
Malicious activity
Analysis date:
2021-04-07 15:25:23 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/0632a1c4-e8cf-4d82-8f79-07e998b42e5e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/132876/
Detection(s):
SecuriteInfo.com.Mal.ClsDLod-A.27114.6311.UNOFFICIAL
Create hunting rule

Result
Verdict:
UNKNOWN
Link:
https://labs.inquest.net/dfi/sha256/12d1db8cc7a9ab91ed16b33f54cefb4aac4c323d7c2eb078b71e39c1719baa9d
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/668839
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Exploit detected, runtime environment dropped PE file
Exploit detected, runtime environment starts unknown processes
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to delay execution (extensive OutputDebugStringW loop)
Uses dynamic DNS services
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: 383349 Sample: SKMC25832100083932157.jar Startdate: 07/04/2021 Architecture: WINDOWS Score: 100 82 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->82 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 13 other signatures 2->88 10 cmd.exe 2 2->10         started        12 svchost.exe 2->12         started        15 svchost.exe 2->15         started        17 6 other processes 2->17 process3 dnsIp4 20 java.exe 7 10->20         started        24 conhost.exe 10->24         started        98 Machine Learning detection for dropped file 12->98 100 Adds a directory exclusion to Windows Defender 12->100 102 Tries to delay execution (extensive OutputDebugStringW loop) 12->102 26 powershell.exe 12->26         started        28 powershell.exe 12->28         started        30 powershell.exe 12->30         started        104 Hides threads from debuggers 15->104 106 Injects a PE file into a foreign processes 15->106 76 127.0.0.1 unknown unknown 17->76 108 Changes security center settings (notifications, updates, antivirus, firewall) 17->108 signatures5 process6 dnsIp7 78 panslimiterd.com 185.239.243.112, 49710, 80 CLOUDIE-AS-APCloudieLimitedHK Moldova Republic of 20->78 70 C:\...\SKM_C25832100083932157.exe, PE32 20->70 dropped 32 SKM_C25832100083932157.exe 18 6 20->32         started        37 icacls.exe 1 20->37         started        39 conhost.exe 26->39         started        41 conhost.exe 28->41         started        file8 process9 dnsIp10 72 myliverpoolnews.cf 104.21.56.119, 49711, 80 CLOUDFLARENETUS United States 32->72 74 172.67.150.212, 443, 49712 CLOUDFLARENETUS United States 32->74 68 C:\Windows\Microsoft.NET\...\svchost.exe, PE32 32->68 dropped 90 Creates an autostart registry key pointing to binary in C:\Windows 32->90 92 Adds a directory exclusion to Windows Defender 32->92 94 Hides threads from debuggers 32->94 96 Injects a PE file into a foreign processes 32->96 43 SKM_C25832100083932157.exe 32->43         started        46 cmd.exe 32->46         started        48 powershell.exe 20 32->48         started        52 3 other processes 32->52 50 conhost.exe 37->50         started        file11 signatures12 process13 dnsIp14 80 severdops.ddns.net 103.151.123.132, 49721, 9243 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN unknown 43->80 54 netsh.exe 43->54         started        56 conhost.exe 46->56         started        58 timeout.exe 46->58         started        60 conhost.exe 48->60         started        62 conhost.exe 52->62         started        64 conhost.exe 52->64         started        process15 process16 66 conhost.exe 54->66         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/12d1db8cc7a9ab91ed16b33f54cefb4aac4c323d7c2eb078b71e39c1719baa9d/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cli5xdghvgvzd3iwwm7vjtx3jkweymr5pqxla6fxdy44c4m3vkoq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion trojan
Link:
https://tria.ge/reports/210407-9zrsglws9e/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Windows security modification
Executes dropped EXE
Modifies Windows Firewall
Windows security bypass
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/12d1db8cc7a9ab91ed16b33f54cefb4aac4c323d7c2eb078b71e39c1719baa9d

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:Malware_QA_not_copy
Create hunting rule
Author:Florian Roth
Description:VT Research QA uploaded malware - file not copy.exe
Reference:VT Research QA
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:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
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.

Cape
Cape
https://www.capesandbox.com/analysis/132876/

Comments