MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 716c596257001fa783b8500fce06dd51a5a5906bc78f4c6c6bcce77f363fda4d. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 716c596257001fa783b8500fce06dd51a5a5906bc78f4c6c6bcce77f363fda4d
SHA3-384 hash: 70bb958959698be846eaf2cc6f8d1df08937697c982d7c5016a05ac69ddc5efc3aa4730fa3395d925610aa34b301f3bf
SHA1 hash: b26d6b501f1f832ccb1f1cfd15400494d421e360
MD5 hash: 72c820e94bfdc89048babe26aba5ea28
humanhash: sixteen-cardinal-moon-october
File name:72c820e94bfdc89048babe26aba5ea28
Download: download sample
Signature AgentTesla
Create hunting rule
File size:21'631 bytes
First seen:2023-02-09 04:27:31 UTC
Last seen:2023-02-09 06:31:52 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:Q6HrRGt4Q1h5SdqCuvWgrVLiV6RqzAVYUQQxIceVRCy1MtHaTN:zRGt5ouvWDoMzJj18HaTN
TLSH T161A247A65EA44C61F16AE8B3470E600D19BFF43620C245C4BFCDD7B4763954E4B6B2B8
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
13.doc
Verdict:
Malicious activity
Analysis date:
2023-02-08 10:23:28 UTC
Tags:
trojan opendir exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/fa51f5c3-9460-4887-80af-42e629f34df8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Exploit.RTF-ObfsStrm.Gen.22506.21961.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
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/716c596257001fa783b8500fce06dd51a5a5906bc78f4c6c6bcce77f363fda4d/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
80%
Tags:
embedequation exploit exploit packed shellcode
Link:
https://www.filescan.io/uploads/63e47653d68ac683b34b2b50/reports/9f6a0da2-a051-41ac-96b3-2a8d9673c299/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/716c596257001fa783b8500fce06dd51a5a5906bc78f4c6c6bcce77f363fda4d
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1169618
Signature
.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
Drops PE files to the user root directory
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 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 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)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected AgentTesla
Yara detected Telegram RAT
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 802397 Sample: J09DiWSBzV.rtf Startdate: 09/02/2023 Architecture: WINDOWS Score: 100 62 Multi AV Scanner detection for domain / URL 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for URL or domain 2->66 68 16 other signatures 2->68 7 EQNEDT32.EXE 12 2->7         started        12 taskeng.exe 2->12         started        14 WINWORD.EXE 379 22 2->14         started        16 EQNEDT32.EXE 2->16         started        process3 dnsIp4 52 38.153.157.57, 49171, 80 COGENT-174US United States 7->52 46 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 7->46 dropped 48 C:\Users\Public\vbc.exe, PE32 7->48 dropped 84 Office equation editor establishes network connection 7->84 86 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->86 18 vbc.exe 1 8 7->18         started        22 ZeanfKDYfdm.exe 12->22         started        50 ~WRF{2D60413C-418D...A-652E181AFDC0}.tmp, Composite 14->50 dropped file5 signatures6 process7 file8 42 C:\Users\user\AppData\...\ZeanfKDYfdm.exe, PE32 18->42 dropped 44 C:\Users\user\AppData\Local\...\tmpF72B.tmp, XML 18->44 dropped 70 Multi AV Scanner detection for dropped file 18->70 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->72 74 May check the online IP address of the machine 18->74 82 2 other signatures 18->82 24 vbc.exe 12 2 18->24         started        28 powershell.exe 7 18->28         started        30 powershell.exe 6 18->30         started        32 schtasks.exe 18->32         started        76 Machine Learning detection for dropped file 22->76 78 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 22->78 80 Adds a directory exclusion to Windows Defender 22->80 34 ZeanfKDYfdm.exe 22->34         started        36 powershell.exe 22->36         started        38 powershell.exe 22->38         started        40 schtasks.exe 22->40         started        signatures9 process10 dnsIp11 54 api4.ipify.org 173.231.16.76, 443, 49172 WEBNXUS United States 24->54 56 api.ipify.org 24->56 58 64.185.227.155, 443, 49173 WEBNXUS United States 34->58 60 api.ipify.org 34->60 88 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 34->88 90 Tries to steal Mail credentials (via file / registry access) 34->90 92 Tries to harvest and steal browser information (history, passwords, etc) 34->92 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/716c596257001fa783b8500fce06dd51a5a5906bc78f4c6c6bcce77f363fda4d/
Threat name:
Win32.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-02-08 11:15:11 UTC
File Type:
Document
Extracted files:
4
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ofwfsysxaap2pa5ykah44bw5kgs2ledly6huy3dlzttx6nr73jgq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230209-e3nqlabh6s/
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
outlook_office_path
outlook_win_path
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
Accesses Microsoft Outlook profiles
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
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot6010275350:AAH4W3CDRhQk0wgfyhQ_jITTy3QYmrxdDbw/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/716c59625700/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/716c596257001fa783b8500fce06dd51a5a5906bc78f4c6c6bcce77f363fda4d

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 716c596257001fa783b8500fce06dd51a5a5906bc78f4c6c6bcce77f363fda4d

(this sample)

  
Delivery method
Distributed via web download

Comments


Avatar
zbet commented on 2023-02-09 04:27:32 UTC

url : hxxp://38.153.157.57/13.doc