MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653
SHA3-384 hash: 1f7872b5097cb299197dba90c2fbea566efd8694e50100055adf6183cbe2b4f232d498747ecefcd4ca9061364ca86aed
SHA1 hash: f671b1d17948e20794bcd209d8ea1c32b1074155
MD5 hash: 7b044d66c7fcbc3d3bf6f5d52e96d3b2
humanhash: nebraska-utah-oscar-nitrogen
File name:7b044d66c7fcbc3d3bf6f5d52e96d3b2
Download: download sample
Signature AgentTesla
Create hunting rule
File size:4'287'940 bytes
First seen:2024-05-24 05:08:10 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 24576:+nLjMle4Ywg76KhKdRukZV+Sc7N4angyRulXC1rfw8BVWXNY0nVJqTsocGmShjy2:y
TLSH T15016AFF876047DE6266F576BDA96ACDD03B626239ACBA4CC806477C305A3375FE02C05
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
121
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653.rtf
Verdict:
Suspicious activity
Analysis date:
2024-05-24 05:08:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9cbf3d92-d4f4-4f49-bd88-5e71ca20534e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6650215c02cf134c1c7f8e30win7simulatehigh_evasion
Tags:
Office Static
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Using the Windows Management Instrumentation requests
Launching a process
Creating a window
DNS request
Connecting to a non-recommended domain
Sending an HTTP GET request
Creating a file in the %temp% directory
Сreating synchronization primitives
Reading critical registry keys
Connection attempt
Sending a custom TCP request
Launching a service
Connection attempt by exploiting the app vulnerability
Stealing user critical data
Sending a custom TCP request by exploiting the app vulnerability
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm exploit
Link:
https://www.filescan.io/uploads/665020f1ae3ab1fab22a58b5/reports/360a9526-2cc9-4ed5-a5e1-05d3b1234de5/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653
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/1446972
Signature
Binary is likely a compiled AutoIt script file
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found malware configuration
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Shellcode detected
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 ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1446972 Sample: ArOuryf0GL.rtf Startdate: 24/05/2024 Architecture: WINDOWS Score: 100 39 Multi AV Scanner detection for domain / URL 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 14 other signatures 2->45 8 WINWORD.EXE 336 13 2->8         started        process3 process4 10 EQNEDT32.EXE 13 8->10         started        15 EQNEDT32.EXE 8->15         started        dnsIp5 27 ipfs.io 209.94.90.1, 443, 49162 PROTOCOLUS United States 10->27 29 cf-ipfs.com 104.17.64.14, 443, 49161 CLOUDFLARENETUS United States 10->29 23 C:\Users\user\AppData\Local\...\qgjivQDG.exe, PE32 10->23 dropped 25 C:\Users\user\AppData\...\QEwecfyhj[1].exe, PE32 10->25 dropped 55 Installs new ROOT certificates 10->55 57 Office equation editor establishes network connection 10->57 59 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->59 17 qgjivQDG.exe 4 10->17         started        file6 signatures7 process8 signatures9 31 Multi AV Scanner detection for dropped file 17->31 33 Binary is likely a compiled AutoIt script file 17->33 35 Machine Learning detection for dropped file 17->35 37 2 other signatures 17->37 20 RegSvcs.exe 2 17->20         started        process10 signatures11 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->47 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->49 51 Tries to steal Mail credentials (via file / registry access) 20->51 53 2 other signatures 20->53
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-05-23 21:06:50 UTC
File Type:
Document
Extracted files:
3
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgmo6x2ou4vokx47am5wvj6cdzpdiyo522pjbjsskbbp63nkwzjq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240524-fs5f2aef38/
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 FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
AutoIT Executable
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
AgentTesla
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f6ec13c2-df4d-4c6e-89f7-05b5b7fff486
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9998ef5f4ea7/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/9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653

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_EXPLOIT_CVE_2017_11882_1
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents potentially exploiting CVE-2017-11882
Rule name:INDICATOR_RTF_EXPLOIT_CVE_2017_11882_4
Create hunting rule
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
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
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

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 9998ef5f4ea72ae55f9f033b6aa7c21e5e3461ddd69e90a6525042ff6daab653

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2862260/

Comments


Avatar
zbet commented on 2024-05-24 05:08:11 UTC

url : hxxps://cf-ipfs.com/ipfs/bafybeidc67axv337ni24dprmx7f42twqeqrvahpmhogdtawzng5eytszme/twsyquusdi4TQGWYY527277727Q7QQ7qeuingyujo.doc