MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13d7c3e00c41017615b7aa10cb44ceb52af91a80380bcf65cbeb4dc9edcc6d25. 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
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SHA256 hash: 13d7c3e00c41017615b7aa10cb44ceb52af91a80380bcf65cbeb4dc9edcc6d25
SHA3-384 hash: b83aba1b5cdb4d095b92a6f6a82c7c5a14ca820060892e818db65b156d072cf59999f9722fa0bc599a14d54e92823efb
SHA1 hash: 22655399fb530e797da924d20071bf299d11b22c
MD5 hash: f1edf20e37a90edcd8992ae17a686d2e
humanhash: texas-vermont-spaghetti-sodium
File name:f1edf20e37a90edcd8992ae17a686d2e.rtf
Download: download sample
Signature AgentTesla
Create hunting rule
File size:92'061 bytes
First seen:2023-08-14 07:05:16 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:XwAbZSibMX9gRWjZPFz5Y1pIo+aMrVKcOLFx/:XwAlRruRaMBKcOT/
TLSH T1CD93DF6CC34F02A8CF6653779A1A0A4542FCBB3EF24552B6306C533533EE92D91266BD
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
117
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
0099837645.docx
Verdict:
Malicious activity
Analysis date:
2023-08-14 06:38:01 UTC
Tags:
exploit cve-2017-11882 stealer agenttesla
Link:
https://app.any.run/tasks/d651aee0-5891-496e-9b27-d1d9e9203de1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Sending an HTTP GET request to an infection source 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/13d7c3e00c41017615b7aa10cb44ceb52af91a80380bcf65cbeb4dc9edcc6d25/results/dashboard
Behaviour
BlacklistAPI detected
Gathering data
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/13d7c3e00c41017615b7aa10cb44ceb52af91a80380bcf65cbeb4dc9edcc6d25
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/1290819
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
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)
Sample uses string decryption to hide its real strings
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1290819 Sample: 8ofb7NMBed.rtf Startdate: 14/08/2023 Architecture: WINDOWS Score: 100 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 12 other signatures 2->47 7 EQNEDT32.EXE 11 2->7         started        12 WINWORD.EXE 336 13 2->12         started        14 EQNEDT32.EXE 2->14         started        process3 dnsIp4 31 2.59.254.18, 49162, 80 CMCSUS Germany 7->31 23 C:\Users\user\...\damianoodh476528.exe, PE32 7->23 dropped 25 C:\Users\user\AppData\...\damianozx[1].exe, PE32 7->25 dropped 55 Office equation editor establishes network connection 7->55 57 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->57 16 damianoodh476528.exe 1 7 7->16         started        file5 signatures6 process7 signatures8 33 Multi AV Scanner detection for dropped file 16->33 35 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->35 37 May check the online IP address of the machine 16->37 39 Injects a PE file into a foreign processes 16->39 19 damianoodh476528.exe 12 2 16->19         started        process9 dnsIp10 27 api4.ipify.org 104.237.62.211, 443, 49163 WEBNXUS United States 19->27 29 api.ipify.org 19->29 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->49 51 Tries to steal Mail credentials (via file / registry access) 19->51 53 Tries to harvest and steal browser information (history, passwords, etc) 19->53 signatures11
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/13d7c3e00c41017615b7aa10cb44ceb52af91a80380bcf65cbeb4dc9edcc6d25/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-08-14 04:35:27 UTC
File Type:
Document
Extracted files:
3
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cpl4hyamieaxmfnxviimwrgowuvpsguahaf46zol5ng4t3omnusq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230814-hw3sqaac98/
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
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
Downloads MZ/PE file
AgentTesla
Malware family:
AgentTesla.v4
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/13d7c3e00c41/report/overview.html
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: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 13d7c3e00c41017615b7aa10cb44ceb52af91a80380bcf65cbeb4dc9edcc6d25

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2703119/
  
Delivery method
Distributed via web download

Comments