MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f1a1876ace64c903d59ad47f1b99fbd622caa4968b238e69bd1d42b7b9b945c. 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: 9


Maldoc score: 14


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f1a1876ace64c903d59ad47f1b99fbd622caa4968b238e69bd1d42b7b9b945c
SHA3-384 hash: cc8c0901cae30ae3569bd96471c802ba1d9ecb4bb38208ff2b17a93a27c522282681aff1d8413556ecf67e29fd50b2db
SHA1 hash: 15a026231075b59abfb4cfabdbfdfb096575d355
MD5 hash: f83fd3b81e2017c59108f8b678b0fbfe
humanhash: sodium-two-oven-nitrogen
File name:TraderansOrder-NO-046-202_12072021.xlsm
Download: download sample
Signature njrat
Create hunting rule
File size:38'876 bytes
First seen:2021-07-12 10:41:07 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 768:h+cPnxWUyP7DSzTKQbTebie+RO11ArnhmeEDSC:MSnxWUyPHkKQb6WMw7EDx
TLSH T133038C070962DA89F11A83F8FE470DE8BA0B4754F543B5FA24605CDF3EA21421D8D2BE
Reporter lowmal3
Tags:NjRAT xlsm

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 14
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
IOCAmCrA.exeExecutable file name
SuspiciouspowershellMay run PowerShell commands
SuspiciousnEw-oBjecTMay create an OLE object using PowerShell
SuspiciousNet.WebcLIENtMay download files from the Internet using PowerShell
SuspiciousEXECMay run an executable file or a system
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousXLM macrosheetXLM macrosheet found. It could contain malicious code

Intelligence

File Origin
# of uploads :
1
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TraderansOrder-NO-046-202_12072021.xlsm
Verdict:
No threats detected
Analysis date:
2021-07-12 10:44:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/874491b5-9b3a-4202-bf56-7017493c037a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
False
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/171042/
Detection(s):
ditekSHen.INDICATOR.OOXML.Excel4MacrosEXEC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.MSOffice.DdeExec-3.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.OOXMLXLSLOLBINHammerToFall.20201218.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.XLMSumBodyToLove.M2.032421.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Link:
https://app.docguard.net/2f1a1876ace64c903d59ad47f1b99fbd622caa4968b238e69bd1d42b7b9b945c/results/dashboard
Payload URLs
URL
File name
http://iurl.vip/nulvn',$env
intlsheet1.xml
Document image
Image:
Download PNG
Document image
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/2f1a1876ace64c903d59ad47f1b99fbd622caa4968b238e69bd1d42b7b9b945c
Details
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/814747
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Document exploit detected (process start blacklist hit)
Drops PE files to the startup folder
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Obfuscated command line found
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 447154 Sample: TraderansOrder-NO-046-202_1... Startdate: 12/07/2021 Architecture: WINDOWS Score: 100 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Multi AV Scanner detection for domain / URL 2->56 58 Found malware configuration 2->58 60 11 other signatures 2->60 10 EXCEL.EXE 53 13 2->10         started        14 AddInProcess32.exe 2->14         started        16 AddInProcess32.exe 2->16         started        18 AddInProcess32.exe 2->18         started        process3 file4 44 ~$TraderansOrder-N...6-202_12072021.xlsm, data 10->44 dropped 72 Obfuscated command line found 10->72 20 cmd.exe 10->20         started        22 powershell.exe 12 7 10->22         started        signatures5 process6 dnsIp7 27 powershell.exe 7 20->27         started        50 iurl.vip 43.241.252.216, 49165, 80 GGL-AS-APGuochaoGrouplimitedHK China 22->50 52 lifestyledrinks.pl 62.112.195.244, 49166, 80 DRAVANET-ASHU Hungary 22->52 42 C:\Users\user\AppData\Local\Temp\AmCrA.exe, PE32 22->42 dropped 70 Powershell drops PE file 22->70 file8 signatures9 process10 process11 29 AmCrA.exe 12 3 27->29         started        file12 46 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 29->46 dropped 74 Machine Learning detection for dropped file 29->74 76 Writes to foreign memory regions 29->76 78 Allocates memory in foreign processes 29->78 80 2 other signatures 29->80 33 AddInProcess32.exe 5 1 29->33         started        signatures13 process14 dnsIp15 48 194.5.98.210, 4040, 49169, 49170 DANILENKODE Netherlands 33->48 40 C:\...\0ef5de3f5b1fb89677ba03e41fa0a05a.exe, PE32 33->40 dropped 62 Creates autostart registry keys with suspicious names 33->62 64 Drops PE files to the startup folder 33->64 66 Uses netsh to modify the Windows network and firewall settings 33->66 68 Modifies the windows firewall 33->68 38 netsh.exe 33->38         started        file16 signatures17 process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2f1a1876ace64c903d59ad47f1b99fbd622caa4968b238e69bd1d42b7b9b945c/
Threat name:
Script.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2021-07-12 10:42:07 UTC
AV detection:
11 of 46 (23.91%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f4nbq5vm4zgjapkzvvd7dom7xvrczksjnczdrzu32hkcw643sroa._file
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat agilenet evasion macro persistence trojan xlm
Link:
https://tria.ge/reports/210712-vczwvb5aqa/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
An obfuscated cmd.exe command-line is typically used to evade detection.
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Modifies Windows Firewall
Process spawned unexpected child process
njRAT/Bladabindi
Malware Config
Dropper Extraction:
http://iurl.vip/nulvn
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/2f1a1876ace64c903d59ad47f1b99fbd622caa4968b238e69bd1d42b7b9b945c

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Microsoft_XLSX_with_Macrosheet
Create hunting rule
Rule name:Microsoft_XLSX_with_Macrosheet
Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

njrat

Excel file xlsm 2f1a1876ace64c903d59ad47f1b99fbd622caa4968b238e69bd1d42b7b9b945c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/171042/

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