MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 becc292fb633a6d01d47ebf5cedcd0ca4ebe4ec3f7ec8feb64f244c6b3915a7a. 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: becc292fb633a6d01d47ebf5cedcd0ca4ebe4ec3f7ec8feb64f244c6b3915a7a
SHA3-384 hash: 54c32b090caab899a7372967bf7121d862a35116fedce162ff453ca4cab435ead1a121dce910dc57f4bce14d0a5ac819
SHA1 hash: ec84eed4dec520302e3085b5c2b47d049364d95f
MD5 hash: 3d64a167c2f313bac10c89b3d591be13
humanhash: may-four-alanine-black
File name:3d64a167c2f313bac10c89b3d591be13
Download: download sample
Signature AgentTesla
Create hunting rule
File size:18'290 bytes
First seen:2023-03-24 02:58:50 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:apK6fVG6PX6h8/+bfzrLctdRK7HH5ttZZtBVhJoQKJiIEB/nJ:z6HvsIMzXcXU7n5tXZtBTiSBh
TLSH T19C82B5815B8DA8F1D314F0338259900A49BEF16F33971AF8B48DD4953BBD60D5AFA2B1
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3d64a167c2f313bac10c89b3d591be13
Verdict:
Malicious activity
Analysis date:
2023-03-24 02:59:27 UTC
Tags:
exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/db1a8522-13c8-46f7-9507-f4243f2b9aeb

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/becc292fb633a6d01d47ebf5cedcd0ca4ebe4ec3f7ec8feb64f244c6b3915a7a/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CVE-2017-11882 embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/641d11fa9c109cf74b2f03cd/reports/3c1af6bd-bff2-4b5e-b338-f9e8d388bed6/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/becc292fb633a6d01d47ebf5cedcd0ca4ebe4ec3f7ec8feb64f244c6b3915a7a
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/1200948
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
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)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 833853 Sample: N3hlSBIogD.rtf Startdate: 24/03/2023 Architecture: WINDOWS Score: 100 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 70 Antivirus detection for dropped file 2->70 72 11 other signatures 2->72 7 EQNEDT32.EXE 12 2->7         started        12 taskeng.exe 1 2->12         started        14 gcWPrHZ.exe 2->14         started        16 2 other processes 2->16 process3 dnsIp4 64 104.168.46.107, 49171, 80 AS-COLOCROSSINGUS United States 7->64 58 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 7->58 dropped 60 C:\Users\Public\vbc.exe, PE32 7->60 dropped 98 Office equation editor establishes network connection 7->98 100 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->100 18 vbc.exe 1 8 7->18         started        22 uHqcLQ.exe 2 12->22         started        102 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->102 104 Machine Learning detection for dropped file 14->104 106 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->106 24 gcWPrHZ.exe 14->24         started        26 powershell.exe 14->26         started        28 schtasks.exe 14->28         started        62 ~WRF{BA8DAC77-0320...4-91713CB19822}.tmp, Composite 16->62 dropped 108 Adds a directory exclusion to Windows Defender 16->108 110 Injects a PE file into a foreign processes 16->110 30 gcWPrHZ.exe 16->30         started        32 powershell.exe 16->32         started        34 schtasks.exe 16->34         started        file5 signatures6 process7 file8 52 C:\Users\user\AppData\Roaming\uHqcLQ.exe, PE32 18->52 dropped 54 C:\Users\user\AppData\Local\Temp\tmp11B.tmp, XML 18->54 dropped 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->74 76 Machine Learning detection for dropped file 18->76 78 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 18->78 80 Uses schtasks.exe or at.exe to add and modify task schedules 18->80 36 vbc.exe 1 4 18->36         started        40 powershell.exe 6 18->40         started        42 schtasks.exe 18->42         started        50 2 other processes 18->50 82 Adds a directory exclusion to Windows Defender 22->82 84 Injects a PE file into a foreign processes 22->84 44 uHqcLQ.exe 22->44         started        46 schtasks.exe 22->46         started        48 powershell.exe 22->48         started        86 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 30->86 88 Tries to steal Mail credentials (via file / registry access) 30->88 90 Tries to harvest and steal browser information (history, passwords, etc) 30->90 signatures9 process10 file11 56 C:\Users\user\AppData\Roaming\...\gcWPrHZ.exe, PE32 36->56 dropped 92 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 36->92 94 Tries to steal Mail credentials (via file / registry access) 36->94 96 Hides that the sample has been downloaded from the Internet (zone.identifier) 36->96 signatures12
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/becc292fb633a6d01d47ebf5cedcd0ca4ebe4ec3f7ec8feb64f244c6b3915a7a/
Threat name:
Document-Word.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-03-23 19:45:14 UTC
File Type:
Document
Extracted files:
4
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x3gcsl5wgotnahkh5p245xgqzjhl4twd67wi723e6jcmnm4rlj5a._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230324-dgqsdsbg96/
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
Adds Run key to start application
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
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/becc292fb633/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 becc292fb633a6d01d47ebf5cedcd0ca4ebe4ec3f7ec8feb64f244c6b3915a7a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2582925/

Comments


Avatar
zbet commented on 2023-03-24 02:58:53 UTC

url : hxxp://104.168.46.107/20...................................20........DOC