MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab1311170ef1bf448a9c9. 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: 8


Intelligence 8 IOCs 1 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab1311170ef1bf448a9c9
SHA3-384 hash: 869c20500ccd80d6992d86e915b217d081a92b1a9d87df5709335a645a8575dbfa84db516c246d9e74ab18b54347a3fb
SHA1 hash: 2d162cba8e96a357006793c026cd34cbcb87e197
MD5 hash: 67b98281009cbfdb96bfaec29243f173
humanhash: social-bulldog-timing-floor
File name:234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab.exe
Download: download sample
Signature njrat
Create hunting rule
File size:60'928 bytes
First seen:2021-04-07 15:35:31 UTC
Last seen:2021-04-07 17:04:22 UTC
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:CHHs5QOIsxyhkTcYT+5wXlQyt/57f9GOHCl586h403u/3c+1FhE+nH:CHHs5QOPfTHXlrJXHCU6e0+pF5nH
Threatray 38 similar samples on MalwareBazaar
TLSH C653E5722A74848DE50082F10BF7DAA4067BBE611BD6C5CE414E7EA334F914D9EA3F49
Reporter abuse_ch
Tags:exe 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 :
2
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SKM_C25832100083932157.jar
Verdict:
Malicious activity
Analysis date:
2021-04-07 15:28:55 UTC
Tags:
trojan rat njrat bladabindi loader
Link:
https://app.any.run/tasks/7c5d969f-3c0e-4dbd-ace7-760c227f2a29

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/132881/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.22719.9204.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a file
Launching a process
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Creating a window
Running batch commands
Sending a UDP request
Unauthorized injection to a recently created process
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Setting a single autorun event
Launching the process to change the firewall settings
Adding exclusions to Windows Defender
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/63c565b1-f7ac-4e33-9a88-6a3da50d18b3
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/668879
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to hide a thread from the debugger
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
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
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 domain / URL
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: 383370 Sample: 234d9ec1757404f8fd9fbb1089b... Startdate: 07/04/2021 Architecture: WINDOWS Score: 100 70 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->70 72 Multi AV Scanner detection for domain / URL 2->72 74 Found malware configuration 2->74 76 6 other signatures 2->76 8 234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab.exe 18 7 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 2->15         started        17 7 other processes 2->17 process3 dnsIp4 64 myliverpoolnews.cf 172.67.150.212, 443, 49716, 49717 CLOUDFLARENETUS United States 8->64 58 C:\Windows\Microsoft.NET\...\svchost.exe, PE32 8->58 dropped 60 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 8->60 dropped 78 Creates an autostart registry key pointing to binary in C:\Windows 8->78 80 Uses netsh to modify the Windows network and firewall settings 8->80 82 Modifies the windows firewall 8->82 96 2 other signatures 8->96 19 234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab.exe 8->19         started        22 cmd.exe 1 8->22         started        24 powershell.exe 24 8->24         started        36 3 other processes 8->36 84 Machine Learning detection for dropped file 13->84 86 Adds a directory exclusion to Windows Defender 13->86 88 Tries to delay execution (extensive OutputDebugStringW loop) 13->88 26 cmd.exe 13->26         started        28 powershell.exe 13->28         started        30 powershell.exe 13->30         started        32 powershell.exe 13->32         started        90 Hides threads from debuggers 15->90 92 Injects a PE file into a foreign processes 15->92 34 powershell.exe 15->34         started        66 127.0.0.1 unknown unknown 17->66 68 192.168.2.1 unknown unknown 17->68 94 Changes security center settings (notifications, updates, antivirus, firewall) 17->94 file5 signatures6 process7 dnsIp8 62 severdops.ddns.net 103.151.123.132, 49736, 9243 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN unknown 19->62 38 netsh.exe 19->38         started        50 2 other processes 22->50 40 conhost.exe 24->40         started        52 2 other processes 26->52 42 conhost.exe 28->42         started        44 conhost.exe 30->44         started        46 conhost.exe 32->46         started        48 conhost.exe 34->48         started        54 2 other processes 36->54 process9 process10 56 conhost.exe 38->56         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab1311170ef1bf448a9c9/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-04-07 15:36:06 UTC
AV detection:
21 of 48 (43.75%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=engz5qlvoqcpr7m7xmiitmxfbqemkem2fqflcmirodxrx5civheq._file
Verdict:
unknown
Similar samples:
0e264fd6c9f8b8d5f5765b8cb5e86eb2801a26d3891093954695c688c987b143
njrat
32c3ae8cd868f60dc052888ac37dda6e70a4e524a290b0e0aaf32967da7490db
njrat
49ba1dba66638dd8177213deb074e595fa90417971162421fa28cf4e1675c954
njrat
4fcb20f32c0c827e9f3977a2874dd0acc7163dedcddf56004e03a38a53d720f9
njrat
5f42f68bc67c97ebf181c31e7c243eee3580ebc75bb2a277f1847ea2bcedecc3
njrat
69dcf72c5f8c1751c5b144899cd43d26c7a639748d4b9a6de53bd4e3a492da3b
njrat
6f28dbb8b4fbf8e652d27a5831bb78cc397b8e1d4c8ec60f49013fdb31c3bf80
njrat
c39bdd8f7c69c3140ef920e2b1d5965310058c5fa425b871f4d7751d8291d55e
njrat
eba0abe9461df84c76949df2d559f66b0379cbdbd430f8db884c55d0aa469980
njrat
f08283e69eef4b48bec25a82962517ead7c998619d431b6b9eb9b227ad520e84
njrat
+ 28 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence trojan
Link:
https://tria.ge/reports/210407-bjs777yjp2/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Windows security modification
Modifies Windows Firewall
Windows security bypass
Unpacked files
SH256 hash:
234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab1311170ef1bf448a9c9
MD5 hash:
67b98281009cbfdb96bfaec29243f173
SHA1 hash:
2d162cba8e96a357006793c026cd34cbcb87e197
Link:
https://www.unpac.me/results/f8a62666-ffee-4099-ac7b-e8fa460ceac4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab1311170ef1bf448a9c9

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Web download

njrat

Executable exe 234d9ec1757404f8fd9fbb1089b2e50c08c5119a2c0ab1311170ef1bf448a9c9

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/132881/
  
URLhaus
https://urlhaus.abuse.ch/url/1104239/
  
Delivery method
Distributed via web download

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