MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5c6d50f37b2e6b846eac7935111d6f3eea25cfcd4d13c64a3df2f1f4d04c833a. 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


AgentTesla


Vendor detections: 13


Intelligence 13 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5c6d50f37b2e6b846eac7935111d6f3eea25cfcd4d13c64a3df2f1f4d04c833a
SHA3-384 hash: e495df4eccd5c5fdee2990d3b200dc50e9f37de86b558514b0922906336904313d887da08cbdc9c4df869e886965c9b4
SHA1 hash: 8b86f5f200648c52c46f7225c4d33b5004cb7227
MD5 hash: a24cf230bfe65032876ed807459d5608
humanhash: cola-stairway-carbon-violet
File name:a24cf230bfe65032876ed807459d5608
Download: download sample
Signature AgentTesla
Create hunting rule
File size:65'725 bytes
First seen:2024-03-24 09:51:58 UTC
Last seen:2024-03-24 11:23:29 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:4MN0xjd2uq16hDVUOrwbhXmDNbnJu1CGiigjEDMwqn1QGI26s5aSW59YS4Gunr:4MW5abxmDNgCAszzn1NNaSW59cGunr
TLSH T13253E22EE74F0925DF55D67B435A4B4A09FCB33D738100A139BC97343BAD81E8A62978
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
143
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5c6d50f37b2e6b846eac7935111d6f3eea25cfcd4d13c64a3df2f1f4d04c833a.rtf
Verdict:
Suspicious activity
Analysis date:
2024-03-24 09:53:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4f61234b-532a-4f72-99e8-bbb6fe63a101

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching a service
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process with a hidden window
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Connection attempt by exploiting the app vulnerability
Stealing user critical data
Creating a process from a recently created file
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/5c6d50f37b2e6b846eac7935111d6f3eea25cfcd4d13c64a3df2f1f4d04c833a/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit
Link:
https://www.filescan.io/uploads/65fff7ca5810ce66d14a6704/reports/cfbcdb5f-2f38-4506-b0a1-7cb802faad92/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/5c6d50f37b2e6b846eac7935111d6f3eea25cfcd4d13c64a3df2f1f4d04c833a
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1414691
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found malware configuration
Injects a PE file into a foreign processes
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1414691 Sample: qDhNH7gQYd.rtf Startdate: 24/03/2024 Architecture: WINDOWS Score: 100 58 Multi AV Scanner detection for domain / URL 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 20 other signatures 2->64 8 WINWORD.EXE 336 13 2->8         started        10 taskeng.exe 2->10         started        process3 process4 12 EQNEDT32.EXE 12 8->12         started        17 EQNEDT32.EXE 8->17         started        19 eOiqaYY.exe 10->19         started        dnsIp5 56 104.168.32.18, 49161, 80 AS-COLOCROSSINGUS United States 12->56 48 C:\Users\user\AppData\Roaming\CNN.exe, PE32 12->48 dropped 50 C:\Users\user\AppData\...\Ifeanyi[1].exe, PE32 12->50 dropped 88 Office equation editor establishes network connection 12->88 90 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 12->90 21 CNN.exe 1 10 12->21         started        92 Antivirus detection for dropped file 19->92 94 Multi AV Scanner detection for dropped file 19->94 96 Machine Learning detection for dropped file 19->96 98 4 other signatures 19->98 25 RegSvcs.exe 19->25         started        28 powershell.exe 19->28         started        30 powershell.exe 19->30         started        32 schtasks.exe 19->32         started        file6 signatures7 process8 dnsIp9 44 C:\Users\user\AppData\Roaming\eOiqaYY.exe, PE32 21->44 dropped 46 C:\Users\user\AppData\Local\...\tmpB27D.tmp, XML 21->46 dropped 74 Antivirus detection for dropped file 21->74 76 Multi AV Scanner detection for dropped file 21->76 78 Machine Learning detection for dropped file 21->78 86 5 other signatures 21->86 34 RegSvcs.exe 12 2 21->34         started        38 powershell.exe 4 21->38         started        40 powershell.exe 4 21->40         started        42 schtasks.exe 21->42         started        54 api.ipify.org 25->54 80 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->80 82 Tries to steal Mail credentials (via file / registry access) 25->82 84 Tries to harvest and steal browser information (history, passwords, etc) 25->84 file10 signatures11 process12 dnsIp13 52 api.ipify.org 104.26.13.205, 443, 49162, 49163 CLOUDFLARENETUS United States 34->52 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 34->66 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 34->68 70 Tries to steal Mail credentials (via file / registry access) 34->70 72 Installs new ROOT certificates 38->72 signatures14
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5c6d50f37b2e6b846eac7935111d6f3eea25cfcd4d13c64a3df2f1f4d04c833a/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-03-22 15:42:20 UTC
File Type:
Document
Extracted files:
4
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lrwvb433fzvyi3vmpe2rchlph3vclt6njuj4msr56ly7jucmqm5a._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240324-lv3ccaec9x/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
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/5c6d50f37b2e6b846eac7935111d6f3eea25cfcd4d13c64a3df2f1f4d04c833a

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_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
Rule name:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information

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

Web download

AgentTesla

Rich Text Format (RTF) rtf 5c6d50f37b2e6b846eac7935111d6f3eea25cfcd4d13c64a3df2f1f4d04c833a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2791229/

Comments


Avatar
zbet commented on 2024-03-24 09:51:59 UTC

url : hxxp://198.12.91.244/xampp/bii/sweetkissmademehugtoherwihtallmyheartbeacuasesheisverybeatutuflgirlwhoilovetrulyfromtheheart______ireallyloveherfromtheheartsweetkiss.doc