MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a9523bba8e40c9d642fd99e046c4c06ddb7174cb26da584ccc0db4aea139f87. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a9523bba8e40c9d642fd99e046c4c06ddb7174cb26da584ccc0db4aea139f87
SHA3-384 hash: f485c95b4c6d720a38100a3364ba047c3ce3f1c59885f6a036f1406229ade2a76b4de4c0858c95ef12451a4bbb15df26
SHA1 hash: 689f74547e3c6c3015a44d00d0a62c2ad2abfeb3
MD5 hash: 2fe0bbc968301dbf2a967662ff676fd1
humanhash: mike-cup-south-london
File name:SecuriteInfo.com.Exploit.CVE-2018-0798.4.3965.30353
Download: download sample
Signature AgentTesla
Create hunting rule
File size:78'663 bytes
First seen:2024-02-19 15:26:30 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 1536:lwAlRkwAlRkwAlRK3c3A8QhaeIOd32m3oR:lwAlawAlawAlNA8QhaeIOd328oR
TLSH T106732B2DD34B02698F624337AB5B1E5542BDBA7EF34452B1306C437933EAC39A1252BD
Reporter SecuriteInfoCom
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
120
Origin country :
FR FR
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Exploit.CVE-2018-0798.4.3965.30353.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
Creating a window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
DNS request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Changing an executable file
Launching a service
Creating a file
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Sending a custom TCP request by exploiting the app vulnerability
Creating a process from a recently created file
Infecting executable files
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/5a9523bba8e40c9d642fd99e046c4c06ddb7174cb26da584ccc0db4aea139f87/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/65d3734d781f5716463daeb0/reports/70ae37d1-b524-4425-b5d2-ad14da01928d/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/5a9523bba8e40c9d642fd99e046c4c06ddb7174cb26da584ccc0db4aea139f87
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1394664
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
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 a global keyboard hook
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 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)
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1394664 Sample: SecuriteInfo.com.Exploit.CV... Startdate: 19/02/2024 Architecture: WINDOWS Score: 100 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 22 other signatures 2->49 8 WINWORD.EXE 336 13 2->8         started        process3 process4 10 EQNEDT32.EXE 11 8->10         started        15 EQNEDT32.EXE 8->15         started        dnsIp5 33 universalmovies.top 172.67.203.56, 443, 49162 CLOUDFLARENETUS United States 10->33 29 C:\Users\user\AppData\...\parka28944.exe, PE32 10->29 dropped 31 C:\Users\user\AppData\...\parkazx[1].exe, PE32 10->31 dropped 61 Installs new ROOT certificates 10->61 63 Office equation editor establishes network connection 10->63 65 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->65 17 parka28944.exe 1 8 10->17         started        file6 signatures7 process8 signatures9 35 Antivirus detection for dropped file 17->35 37 Multi AV Scanner detection for dropped file 17->37 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->39 41 3 other signatures 17->41 20 parka28944.exe 2 17->20         started        23 powershell.exe 4 17->23         started        25 parka28944.exe 17->25         started        27 3 other processes 17->27 process10 signatures11 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->51 53 Tries to steal Mail credentials (via file / registry access) 20->53 55 Tries to harvest and steal browser information (history, passwords, etc) 20->55 57 Installs a global keyboard hook 20->57 59 Installs new ROOT certificates 23->59
Score:
73%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/5a9523bba8e40c9d642fd99e046c4c06ddb7174cb26da584ccc0db4aea139f87
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5a9523bba8e40c9d642fd99e046c4c06ddb7174cb26da584ccc0db4aea139f87/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-02-19 11:59:06 UTC
File Type:
Document
Extracted files:
3
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lkksho5i4qgj2zbp3gpai3cma3o3of2mwjw2lbgmydnuv2qtt6dq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240219-svt5asfb27/
Behaviour
Checks processor information in registry
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
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 Config
C2 Extraction:
https://api.telegram.org/bot6888405524:AAFs03Xpn0T6cMtLnkT-8XOF1Lm2jt7RNyI/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5a9523bba8e4/report/overview.html
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/5a9523bba8e40c9d642fd99e046c4c06ddb7174cb26da584ccc0db4aea139f87

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_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
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.

Comments