MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78. 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: 2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78
SHA3-384 hash: 89fc3eac56acd6f3995abe33658306664f8cd8e6dbefbd1cef0f2f312c7bee9a349ac980e5f3730aff327789eb7641e8
SHA1 hash: f14d909d63db39118c4906a0a933d8989aa8dab4
MD5 hash: 6f29042edcc685add4c2bb14e0cee33f
humanhash: glucose-low-autumn-angel
File name:6f29042edcc685add4c2bb14e0cee33f
Download: download sample
Signature AgentTesla
Create hunting rule
File size:67'443 bytes
First seen:2024-03-21 02:35:11 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 1536:WV12AzExr4i8KOvW0B2UNQI0zNMlI5RWzq:WPT4Y1YzNMl0x
TLSH T17C63176AE74F0925DF55E67B034A4B4E09FCB33D728140A139BC97343BAD81E4A6297C
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78.rtf
Verdict:
No threats detected
Analysis date:
2024-03-21 02:37:46 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/374104a5-03a3-4d81-a514-3de25280e8e0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

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
Changing an executable file
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
Connection attempt by exploiting the app vulnerability
Creating a process from a recently created file
Infecting executable files
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/65fb9d1283a3efb188d52b22/reports/265f3160-7be4-4558-bc71-629311b41808/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1412828
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: 1412828 Sample: ioj7OUCNvF.rtf Startdate: 21/03/2024 Architecture: WINDOWS Score: 100 59 Multi AV Scanner detection for domain / URL 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 20 other signatures 2->65 8 WINWORD.EXE 291 16 2->8         started        11 taskeng.exe 2->11         started        process3 file4 47 ~WRF{7099A3F3-B28E...E-B188F69EB86D}.tmp, Composite 8->47 dropped 13 EQNEDT32.EXE 12 8->13         started        18 DTKFdukIzwVKhN.exe 11->18         started        process5 dnsIp6 57 104.168.32.18, 49163, 80 AS-COLOCROSSINGUS United States 13->57 49 C:\Users\user\AppData\Roaming\CNN.exe, PE32 13->49 dropped 51 C:\Users\user\AppData\Local\...\noah[1].exe, PE32 13->51 dropped 89 Office equation editor establishes network connection 13->89 91 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->91 20 CNN.exe 1 10 13->20         started        93 Multi AV Scanner detection for dropped file 18->93 95 Machine Learning detection for dropped file 18->95 97 Writes to foreign memory regions 18->97 99 3 other signatures 18->99 24 RegSvcs.exe 18->24         started        27 powershell.exe 18->27         started        29 powershell.exe 18->29         started        31 schtasks.exe 18->31         started        file7 signatures8 process9 dnsIp10 43 C:\Users\user\AppData\...\DTKFdukIzwVKhN.exe, PE32 20->43 dropped 45 C:\Users\user\AppData\Local\...\tmpDDD2.tmp, XML 20->45 dropped 75 Multi AV Scanner detection for dropped file 20->75 77 Machine Learning detection for dropped file 20->77 79 Uses schtasks.exe or at.exe to add and modify task schedules 20->79 87 4 other signatures 20->87 33 RegSvcs.exe 12 2 20->33         started        37 powershell.exe 4 20->37         started        39 powershell.exe 4 20->39         started        41 schtasks.exe 20->41         started        55 api.ipify.org 24->55 81 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->81 83 Tries to steal Mail credentials (via file / registry access) 24->83 85 Tries to harvest and steal browser information (history, passwords, etc) 24->85 file11 signatures12 process13 dnsIp14 53 api.ipify.org 104.26.13.205, 443, 49164, 49165 CLOUDFLARENETUS United States 33->53 67 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 33->67 69 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 33->69 71 Tries to steal Mail credentials (via file / registry access) 33->71 73 Installs new ROOT certificates 37->73 signatures15
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-03-20 11:05:23 UTC
File Type:
Document
Extracted files:
6
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fkwpidcs4tiu3xdiydess7wkl2dbdjb2nnhrgmfjjnuxyzxgbj4a._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240321-c3kb3aba5t/
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
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2aacf40c52e4/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/2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78

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 2aacf40c52e4d14ddc68c0c9297eca5e8611a43a6b4f1330a94b697c66e60a78

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2788131/

Comments


Avatar
zbet commented on 2024-03-21 02:35:12 UTC

url : hxxp://198.12.91.244/xampp/bgo/bg/cratedsmoothlovercontentwithintimetounderstandhowmuchicanloveyoutrulyfromtheheartbecause_____ilovetoinformuthatshelovingmetruly.doc