MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53f52ed185f98283e220bcd59a64d7f3eb93b544fa04f16768f3a2707f43ac11. 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: 14


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

SHA256 hash: 53f52ed185f98283e220bcd59a64d7f3eb93b544fa04f16768f3a2707f43ac11
SHA3-384 hash: 311cf0ed46d6fd59f79b7ed1343b140d1b27d6052b1e71de15db210efb5a472b3d14d7b80acb94c1e4a26efaa96966f0
SHA1 hash: 85b585ca0a609a80bb0ccb56d62673c0762da74d
MD5 hash: 0244568fb48a51a72c3581e220328e90
humanhash: ceiling-kilo-triple-six
File name:0244568fb48a51a72c3581e220328e90
Download: download sample
Signature AgentTesla
Create hunting rule
File size:89'203 bytes
First seen:2024-07-24 04:19:45 UTC
Last seen:2024-07-24 07:16:24 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:fe/iONfZBD8XP6uU4huDT6ASKV9es4WM81x:iZBECJ4h6uASKV9WDo
TLSH T10193E058D78F45A4CF48A277031A4A8906FCB33EB71551BA74AC933037EDC2E59A64BC
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
109
Origin country :
FR FR
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28765.RtfHeur.ObjUpd.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

TwinWave.EvilRTF.ObfusRunAway.20240409.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a080f66f74caeb2f89aa45
Tags:
Discovery Execution Exploit Generic Network Office Stealth Trojan Obfuscated
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Connection attempt by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/53f52ed185f98283e220bcd59a64d7f3eb93b544fa04f16768f3a2707f43ac11/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66a080f655684023171504e4/reports/d40a6eb3-ac8e-4769-af80-83e83a1bc0cb/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/53f52ed185f98283e220bcd59a64d7f3eb93b544fa04f16768f3a2707f43ac11
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/1479798
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found malware configuration
Found potential equation exploit (CVE-2017-11882)
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 dropped file
Multi AV Scanner detection for submitted file
Office drops RTF 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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
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
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1479798 Sample: M6hS9qGbFx.rtf Startdate: 24/07/2024 Architecture: WINDOWS Score: 100 95 Found malware configuration 2->95 97 Malicious sample detected (through community Yara rule) 2->97 99 Antivirus detection for dropped file 2->99 101 22 other signatures 2->101 8 WINWORD.EXE 336 17 2->8         started        11 taskeng.exe 1 2->11         started        13 mpTrle.exe 2->13         started        16 mpTrle.exe 2->16         started        process3 file4 69 C:\Users\...\~WRD0000.tmp:Zone.Identifier, ASCII 8->69 dropped 71 C:\Users\user\Desktop\~WRD0000.tmp, Rich 8->71 dropped 73 C:\Users\user\Desktop\M6hS9qGbFx.rtf (copy), Rich 8->73 dropped 75 ~WRF{817C920E-6D99...5-0B5BED19D303}.tmp, Composite 8->75 dropped 18 EQNEDT32.EXE 12 8->18         started        23 UjbCafzn.exe 11->23         started        149 Multi AV Scanner detection for dropped file 13->149 151 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 13->151 153 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 13->153 155 Machine Learning detection for dropped file 13->155 25 mpTrle.exe 13->25         started        27 powershell.exe 13->27         started        29 schtasks.exe 13->29         started        35 2 other processes 13->35 157 Adds a directory exclusion to Windows Defender 16->157 159 Injects a PE file into a foreign processes 16->159 31 mpTrle.exe 16->31         started        33 powershell.exe 16->33         started        37 5 other processes 16->37 signatures5 process6 dnsIp7 77 198.46.174.139, 49161, 80 AS-COLOCROSSINGUS United States 18->77 59 C:\Users\user\AppData\Roaming\winiti.exe, PE32 18->59 dropped 61 C:\Users\user\AppData\Local\...\winiti[1].exe, PE32 18->61 dropped 103 Office equation editor establishes network connection 18->103 105 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 18->105 39 winiti.exe 1 10 18->39         started        107 Multi AV Scanner detection for dropped file 23->107 109 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 23->109 111 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->111 121 3 other signatures 23->121 43 UjbCafzn.exe 23->43         started        46 powershell.exe 23->46         started        48 schtasks.exe 23->48         started        79 ip-api.com 25->79 81 104.26.12.205, 443, 49165, 49167 CLOUDFLARENETUS United States 25->81 83 api.ipify.org 25->83 85 ip-api.com 31->85 87 api.ipify.org 31->87 113 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 31->113 115 Tries to steal Mail credentials (via file / registry access) 31->115 117 Tries to harvest and steal ftp login credentials 31->117 119 Tries to harvest and steal browser information (history, passwords, etc) 31->119 file8 signatures9 process10 dnsIp11 65 C:\Users\user\AppData\Roaming\UjbCafzn.exe, PE32 39->65 dropped 67 C:\Users\user\AppData\Local\...\tmp7714.tmp, XML 39->67 dropped 133 Multi AV Scanner detection for dropped file 39->133 135 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 39->135 137 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 39->137 147 6 other signatures 39->147 50 winiti.exe 13 4 39->50         started        55 powershell.exe 4 39->55         started        57 schtasks.exe 39->57         started        91 ip-api.com 43->91 93 api.ipify.org 104.26.13.205, 443, 49163 CLOUDFLARENETUS United States 43->93 139 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 43->139 141 Installs new ROOT certificates 43->141 143 Tries to steal Mail credentials (via file / registry access) 43->143 145 Hides that the sample has been downloaded from the Internet (zone.identifier) 43->145 file12 signatures13 process14 dnsIp15 89 ip-api.com 208.95.112.1, 49162, 49164, 49166 TUT-ASUS United States 50->89 63 C:\Users\user\AppData\Roaming\...\mpTrle.exe, PE32 50->63 dropped 123 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 50->123 125 Tries to steal Mail credentials (via file / registry access) 50->125 127 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 50->127 129 Hides that the sample has been downloaded from the Internet (zone.identifier) 50->129 131 Installs new ROOT certificates 55->131 file16 signatures17
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/53f52ed185f98283e220bcd59a64d7f3eb93b544fa04f16768f3a2707f43ac11
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/53f52ed185f98283e220bcd59a64d7f3eb93b544fa04f16768f3a2707f43ac11/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-07-23 15:19:50 UTC
File Type:
Document
Extracted files:
5
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kp2s5umf7gbihyraxtkzuzgx6pvzhnke7icpcz3i6orha72dvqiq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla credential_access discovery execution keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240724-ex384axgkj/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Scheduled Task/Job: Scheduled Task
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
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
AgentTesla
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/486bb1f0-7383-423d-b67a-37cf4156e958
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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 53f52ed185f98283e220bcd59a64d7f3eb93b544fa04f16768f3a2707f43ac11

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3064345/

Comments


Avatar
zbet commented on 2024-07-24 04:19:46 UTC

url : hxxp://198.46.174.139/xampp/bnc/bn/verygoodthingstobegreatadvancesystemtakecareofyourthingstobebackwithnewthingsgetback____________sweeetthingshappenegirl.doc