MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2580898bcb319660a9ade85c4c70a9b4b2644be647ea4b6829110bde3b33e7f5. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2580898bcb319660a9ade85c4c70a9b4b2644be647ea4b6829110bde3b33e7f5
SHA3-384 hash: 15f4e2f1ca91a92aa83b17dac25f36ef21290de955c89565518222f53ef9db7da2873c249cb45f2ecadca0fbd8896d5f
SHA1 hash: 400726cc2ebbe7567d9abe0a7609398d21e7a094
MD5 hash: 1cc42155aac8301b04acf2dd24e00037
humanhash: papa-monkey-william-winter
File name:1cc42155aac8301b04acf2dd24e00037
Download: download sample
Signature AgentTesla
Create hunting rule
File size:28'949 bytes
First seen:2023-06-17 11:02:32 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:mgDjAA7BkMdHBVWbSUq6aNJENZDo2rXkUjGpOm63xeQSEnc2s7v6:mMjAeuEqSRNM3jcOffsD6
TLSH T14CD225565B8C4C61F269E87B865EE00E49BCF23234C255C5BC9CE6B17B3D14E0B6B1B8
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
126
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1cc42155aac8301b04acf2dd24e00037
Verdict:
Malicious activity
Analysis date:
2023-06-17 11:03:25 UTC
Tags:
opendir exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/722193a8-2263-4f67-82fb-29ce5a4441f3

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

MiscreantPunch.RTF.2017-0199.Obfus.171711.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
Creating a file in the %temp% directory
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
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/2580898bcb319660a9ade85c4c70a9b4b2644be647ea4b6829110bde3b33e7f5/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit exploit lolbin shell32.dll shellcode
Link:
https://www.filescan.io/uploads/648d92e91eaa093a2d33f74e/reports/b56f74d2-fe64-4ae1-855f-c227f26e21a0/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/2580898bcb319660a9ade85c4c70a9b4b2644be647ea4b6829110bde3b33e7f5
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1256473
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Drops PE files to the user root directory
Found malware configuration
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
May check the online IP address of the machine
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)
Sample uses string decryption to hide its real strings
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
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)
Yara detected AgentTesla
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 889493 Sample: MDi2uul8zw.rtf Startdate: 17/06/2023 Architecture: WINDOWS Score: 100 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 13 other signatures 2->50 7 EQNEDT32.EXE 12 2->7         started        12 WINWORD.EXE 336 15 2->12         started        14 EQNEDT32.EXE 2->14         started        process3 dnsIp4 34 192.3.193.194, 49181, 80 AS-COLOCROSSINGUS United States 7->34 26 C:\Users\user\AppData\...\cleanmgr[1].exe, PE32 7->26 dropped 28 C:\Users\Public\clean_cache.exe, PE32 7->28 dropped 58 Office equation editor establishes network connection 7->58 60 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->60 16 clean_cache.exe 19 7->16         started        file5 signatures6 process7 file8 24 C:\Users\user\AppData\Local\...\ijdbtjl.dll, PE32 16->24 dropped 36 Multi AV Scanner detection for dropped file 16->36 38 Detected unpacking (changes PE section rights) 16->38 40 Detected unpacking (creates a PE file in dynamic memory) 16->40 42 5 other signatures 16->42 20 clean_cache.exe 13 3 16->20         started        signatures9 process10 dnsIp11 30 api4.ipify.org 173.231.16.76, 443, 49182 WEBNXUS United States 20->30 32 api.ipify.org 20->32 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->52 54 Tries to steal Mail credentials (via file / registry access) 20->54 56 Tries to harvest and steal browser information (history, passwords, etc) 20->56 signatures12
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2580898bcb319660a9ade85c4c70a9b4b2644be647ea4b6829110bde3b33e7f5/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-06-16 15:28:44 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=ewaitc6lgglgbknn5boey4fjwszgis7gi7vew2bjcef54ozt472q._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/230617-m5pdxabe45/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
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
Adds Run key to start application
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
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/2580898bcb31/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/2580898bcb319660a9ade85c4c70a9b4b2644be647ea4b6829110bde3b33e7f5

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 2580898bcb319660a9ade85c4c70a9b4b2644be647ea4b6829110bde3b33e7f5

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2664700/

Comments


Avatar
zbet commented on 2023-06-17 11:02:32 UTC

url : hxxp://192.3.193.194/wsa/wsawsawsawsawsawsawsawsawsawsawsa%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23wsawsawsawsawsaw.doc