MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 10ef779276119f5e40406b61ef84c14da34494f1f839d1047f65961f053baf2b. 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: 6


Intelligence 6 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 10ef779276119f5e40406b61ef84c14da34494f1f839d1047f65961f053baf2b
SHA3-384 hash: 21453c63f7b1762e4d5a5a3232091b3a7edd287821951a2146148ccd9b6285a3a49256da7cac281eb921dde28302f46f
SHA1 hash: 7f6644531826c4dfb10d29bf002e961067afe18b
MD5 hash: 28fbc92abd52bd871cfa322673390621
humanhash: romeo-victor-music-cold
File name:28fbc92abd52bd871cfa322673390621.rtf
Download: download sample
Signature AgentTesla
Create hunting rule
File size:9'513 bytes
First seen:2020-10-20 09:05:50 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 192:Qb5nULiBEywLOUugKXXT95oCP0tKhLLMINRjsm8bfGcmlYppGV1Yb:yAiBEywLOkKT95ohykCsmzlGpIYb
TLSH 30128D1CD904B660977E9AC94B2AF6E1864FBEB78197DAC4305C61B23F0B421DBC185A
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Sending an HTTP GET request
Sending a custom TCP request by exploiting the app vulnerability
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/497456
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Drops PE files to the user root directory
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Program Location Process Starts
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 301625 Sample: Hrm6oFkWSS.rtf Startdate: 21/10/2020 Architecture: WINDOWS Score: 100 35 mail.hkoffice365.com 2->35 39 Found malware configuration 2->39 41 Antivirus detection for URL or domain 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 13 other signatures 2->45 8 EQNEDT32.EXE 17 2->8         started        13 vlc.exe 2->13         started        15 WINWORD.EXE 291 21 2->15         started        17 vlc.exe 2->17         started        signatures3 process4 dnsIp5 37 itravel.co.tz 160.153.133.172, 443, 49167, 49168 GODADDY-AMSDE United States 8->37 31 C:\Users\user\AppData\Local\...\VKO[1].exe, PE32 8->31 dropped 33 C:\Users\Public\vbc.exe, PE32 8->33 dropped 55 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 8->55 19 vbc.exe 1 2 8->19         started        file6 signatures7 process8 file9 29 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 19->29 dropped 47 Multi AV Scanner detection for dropped file 19->47 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->49 51 Machine Learning detection for dropped file 19->51 53 3 other signatures 19->53 23 vbc.exe 2 19->23         started        25 powershell.exe 6 19->25         started        27 vbc.exe 19->27         started        signatures10 process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/10ef779276119f5e40406b61ef84c14da34494f1f839d1047f65961f053baf2b/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 06:25:10 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cdxxpetwcgpv4qcannq67bgbjwrujfhr7a45cbd7mwlb6bj3v4vq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201020-48p3al3en6/
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Loads dropped DLL
Uses the VBS compiler for execution
Blacklisted process makes network request
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Bloodhound
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/10ef779276119f5e40406b61ef84c14da34494f1f839d1047f65961f053baf2b

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

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 10ef779276119f5e40406b61ef84c14da34494f1f839d1047f65961f053baf2b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/721908/
  
Delivery method
Distributed via web download

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