MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91d02bfc9a8699fea8f447158a67d90af2f5cf62b024b283611d17c9f5fc8567. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91d02bfc9a8699fea8f447158a67d90af2f5cf62b024b283611d17c9f5fc8567
SHA3-384 hash: bab90ab20786cf182682933d3682cae60753c10df434cbf868bf43b77180e6bfac8fd32cb28130d5646d72a6b90dac66
SHA1 hash: a7382690fc0c843dd101b97b2b2a33d82912a88a
MD5 hash: c597f50730816c8a2b1e8a9952a9bcdb
humanhash: victor-december-avocado-floor
File name:c597f50730816c8a2b1e8a9952a9bcdb
Download: download sample
Signature AgentTesla
Create hunting rule
File size:67'970 bytes
First seen:2024-03-04 20:37:01 UTC
Last seen:2024-03-04 22:28:28 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:GGFSLjk1C9pdeC7MLg+3I/sXQpcuETvHMqOyUWZJeViwbBNf0dO2uWHqG/:XFS+sp74jILpcJTzOEeBkdku/
TLSH T13663166EE30F0925DF55E67B434A4B4A05FCB33D728540A179BC9778376D81E4A2287C
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
173
Origin country :
FR FR
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
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
Сreating synchronization primitives
Creating a window
Changing an executable file
Using the Windows Management Instrumentation requests
Infecting executable files
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/91d02bfc9a8699fea8f447158a67d90af2f5cf62b024b283611d17c9f5fc8567/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/65e630efd86c827370cfb26d/reports/ff240bb2-f982-4157-bee0-aaad2588b1c0/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/91d02bfc9a8699fea8f447158a67d90af2f5cf62b024b283611d17c9f5fc8567
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/1403007
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to inject code into remote processes
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs new ROOT certificates
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Suspicious Binary In User Directory Spawned From Office Application
Sigma detected: Suspicious Microsoft Office Child Process
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1403007 Sample: u0vEMuaT48.rtf Startdate: 04/03/2024 Architecture: WINDOWS Score: 100 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus / Scanner detection for submitted sample 2->62 64 13 other signatures 2->64 8 WINWORD.EXE 336 13 2->8         started        10 mpTrle.exe 2 2->10         started        13 mpTrle.exe 2 2->13         started        process3 signatures4 15 EQNEDT32.EXE 12 8->15         started        20 EQNEDT32.EXE 8->20         started        66 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->66 68 Machine Learning detection for dropped file 10->68 70 Injects a PE file into a foreign processes 10->70 22 mpTrle.exe 12 2 10->22         started        24 mpTrle.exe 2 13->24         started        process5 dnsIp6 42 107.174.138.160, 49160, 80 AS-COLOCROSSINGUS United States 15->42 34 C:\Users\user\AppData\Roaming\CNN.exe, PE32 15->34 dropped 36 C:\Users\user\AppData\Local\...\CNN[1].exe, PE32 15->36 dropped 48 Office equation editor establishes network connection 15->48 50 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 15->50 26 CNN.exe 2 15->26         started        44 api.ipify.org 22->44 46 api.ipify.org 24->46 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->52 54 Tries to steal Mail credentials (via file / registry access) 24->54 56 Tries to harvest and steal browser information (history, passwords, etc) 24->56 file7 signatures8 process9 signatures10 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 26->72 74 Machine Learning detection for dropped file 26->74 76 Contains functionality to inject code into remote processes 26->76 78 Injects a PE file into a foreign processes 26->78 29 CNN.exe 13 4 26->29         started        process11 dnsIp12 40 api.ipify.org 104.26.12.205, 443, 49162, 49164 CLOUDFLARENETUS United States 29->40 38 C:\Users\user\AppData\Roaming\...\mpTrle.exe, PE32 29->38 dropped 80 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->80 82 Installs new ROOT certificates 29->82 84 Tries to steal Mail credentials (via file / registry access) 29->84 86 Hides that the sample has been downloaded from the Internet (zone.identifier) 29->86 file13 signatures14
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/91d02bfc9a8699fea8f447158a67d90af2f5cf62b024b283611d17c9f5fc8567
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91d02bfc9a8699fea8f447158a67d90af2f5cf62b024b283611d17c9f5fc8567/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-03-04 13:22:17 UTC
File Type:
Document
Extracted files:
4
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shicx7e2q2m75khui4kyuz6zblzplt3cwaslfa3bdul4t5p4qvtq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240304-zd5b9sdf46/
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 use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
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
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91d02bfc9a86/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/91d02bfc9a8699fea8f447158a67d90af2f5cf62b024b283611d17c9f5fc8567

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 91d02bfc9a8699fea8f447158a67d90af2f5cf62b024b283611d17c9f5fc8567

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2776074/

Comments


Avatar
zbet commented on 2024-03-04 20:37:02 UTC

url : hxxp://107.174.138.160/crr/cr/minlovewithsomeoneshecuteandtrulyyoungunluckyshenotundersatnd_howmuchiloveherbutitsallgreatwithtrueloveriamgivingyou.doc