MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5e41401cc62f4ff58c658edce9d1823e2f6f84a646c9aa1c7fbac7f091ebc614. 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: 5e41401cc62f4ff58c658edce9d1823e2f6f84a646c9aa1c7fbac7f091ebc614
SHA3-384 hash: 93ec8cfdf593648befc3fa3f443d903d07a2ade7e8baa187702c8cb56a9240e32985ec7926ef283e3b277caa8c7c915a
SHA1 hash: a67404eb18267d09a5d54f2e7ea9e85097bdd3f5
MD5 hash: b13a74dca15cc4c5b3e73d60c4f100e3
humanhash: bacon-enemy-hawaii-harry
File name:b13a74dca15cc4c5b3e73d60c4f100e3
Download: download sample
Signature AgentTesla
Create hunting rule
File size:14'691 bytes
First seen:2023-03-02 11:37:41 UTC
Last seen:2023-03-02 13:37:16 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:Ph3hjeXlEGlB8Tkv7Arq2XCB4KRayjKef/AbcxWa9SXAqKIz/+guu:Ph34lEGlB8b22SC6DjPnA9fXAA7+gT
TLSH T1876249111BCD2CF29329F233E225951A4D3EA5A631322ED935CDE0A137ED61E4AFD4B1
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Order 84889-CVE2-52022.docx
Verdict:
Malicious activity
Analysis date:
2023-03-02 07:37:18 UTC
Tags:
opendir exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/bb85baf5-4e15-4974-9e2d-559bd3f8f204

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.28881.RtfHeur.UNOFFICIAL
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file
Сreating synchronization primitives
Creating a process with a hidden window
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/5e41401cc62f4ff58c658edce9d1823e2f6f84a646c9aa1c7fbac7f091ebc614/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
80%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/64008a9f2ea6b36966305d5d/reports/288eb971-01fe-4e33-88ef-4681d75d8bd5/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/5e41401cc62f4ff58c658edce9d1823e2f6f84a646c9aa1c7fbac7f091ebc614
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/1185663
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
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 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 818525 Sample: ddhB0xn57D.rtf Startdate: 02/03/2023 Architecture: WINDOWS Score: 100 54 Multi AV Scanner detection for domain / URL 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus detection for URL or domain 2->58 60 12 other signatures 2->60 7 EQNEDT32.EXE 12 2->7         started        12 taskeng.exe 1 2->12         started        14 WINWORD.EXE 336 18 2->14         started        16 EQNEDT32.EXE 2->16         started        process3 dnsIp4 46 15.237.37.205, 49171, 80 AMAZON-02US United States 7->46 42 C:\Users\user\AppData\Local\...\vbc[1].exe, PE32 7->42 dropped 44 C:\Users\Public\vbc.exe, PE32 7->44 dropped 76 Office equation editor establishes network connection 7->76 78 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->78 18 vbc.exe 3 7->18         started        22 thHVOlYHyYRLoS.exe 2 12->22         started        file5 signatures6 process7 file8 38 C:\Users\user\AppData\...\thHVOlYHyYRLoS.exe, PE32 18->38 dropped 40 C:\Users\user\AppData\Local\...\tmpCBB8.tmp, XML 18->40 dropped 62 Multi AV Scanner detection for dropped file 18->62 64 Machine Learning detection for dropped file 18->64 66 Uses schtasks.exe or at.exe to add and modify task schedules 18->66 68 Injects a PE file into a foreign processes 18->68 24 RegSvcs.exe 12 2 18->24         started        28 powershell.exe 6 18->28         started        30 schtasks.exe 18->30         started        70 Writes to foreign memory regions 22->70 72 Allocates memory in foreign processes 22->72 74 Adds a directory exclusion to Windows Defender 22->74 32 RegSvcs.exe 2 22->32         started        34 schtasks.exe 22->34         started        36 powershell.exe 22->36         started        signatures9 process10 dnsIp11 48 api4.ipify.org 104.237.62.211, 443, 49172, 49173 WEBNXUS United States 24->48 50 api.ipify.org 24->50 80 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->80 82 May check the online IP address of the machine 24->82 84 Tries to steal Mail credentials (via file / registry access) 24->84 86 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 24->86 52 api.ipify.org 32->52 88 Tries to harvest and steal browser information (history, passwords, etc) 32->88 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5e41401cc62f4ff58c658edce9d1823e2f6f84a646c9aa1c7fbac7f091ebc614/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-03-02 05:05:45 UTC
File Type:
Document
Extracted files:
5
AV detection:
15 of 25 (60.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lzauahggf5h7lddfr3ootumchyxw7bfgi3e2uhd7xld7beplyyka._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230302-nrqkgscg29/
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
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
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/5e41401cc62f/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/5e41401cc62f4ff58c658edce9d1823e2f6f84a646c9aa1c7fbac7f091ebc614

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 5e41401cc62f4ff58c658edce9d1823e2f6f84a646c9aa1c7fbac7f091ebc614

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2554992/

Comments


Avatar
zbet commented on 2023-03-02 11:37:46 UTC

url : hxxp://15.237.37.205/e2....................doc