MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0581cf084cf7c01dea29d1c44b81cfaf4a6b1441a7f5e97840317066c2593d6b. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0581cf084cf7c01dea29d1c44b81cfaf4a6b1441a7f5e97840317066c2593d6b
SHA3-384 hash: 79a65b1b3e4516c2afc6db14f0732a81bbc555e98e608ac7499b92a083feebacc5d65c700cdf1e22049eba42bb948396
SHA1 hash: 5e42cc3d55308e7c0d2e2c1d13a5ef71a8351b9a
MD5 hash: bef11c74ed5d10f3f50e4fc758039348
humanhash: charlie-london-quiet-oxygen
File name:bef11c74ed5d10f3f50e4fc758039348.rtf
Download: download sample
Signature AgentTesla
Create hunting rule
File size:54'281 bytes
First seen:2023-08-01 10:54:12 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:ISwAbZSibMX9gRWp/0NjQUcV0BygjEHOhlRZfhtb8qJ8PzILxvIgmf:ISwAlRGVr0YoEIlRtb8qWPzILqD
TLSH T134337B2DE34F0269CF5252379B1A0A4446FCBB3EB35511B1346C437933EE92D91266BD
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
114
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bef11c74ed5d10f3f50e4fc758039348.rtf
Verdict:
Malicious activity
Analysis date:
2023-08-01 11:05:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e6344698-8625-46ed-90d3-46974bdf521b

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.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

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
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/0581cf084cf7c01dea29d1c44b81cfaf4a6b1441a7f5e97840317066c2593d6b/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/64c8e4871b48787a4970c9c1/reports/25eb1dbe-1de6-473e-93d7-2e219b92bf27/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/0581cf084cf7c01dea29d1c44b81cfaf4a6b1441a7f5e97840317066c2593d6b
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1283662
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: EQNEDT32.EXE connecting to internet
Behaviour
Behavior Graph:
Download SVG
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0581cf084cf7c01dea29d1c44b81cfaf4a6b1441a7f5e97840317066c2593d6b/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-08-01 09:33:42 UTC
File Type:
Document
Extracted files:
3
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=awa46ccm67ab32rj2hcexaopv5fgwfcbu726s6cagfygnqszhvvq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230801-mz4xeage2y/
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Blocklisted process makes network request
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0581cf084cf7/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/0581cf084cf7c01dea29d1c44b81cfaf4a6b1441a7f5e97840317066c2593d6b

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 0581cf084cf7c01dea29d1c44b81cfaf4a6b1441a7f5e97840317066c2593d6b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2693414/
  
Delivery method
Distributed via web download

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