MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2. 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 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2
SHA3-384 hash: 39b7611420659972ea9efea77f272ec8bf3be4bb5c2e565eb5d1d283d1178ca8d8d832b6dcdb5e61e1ed00efa4a586c0
SHA1 hash: ff305024dbe59b4f9cc2ec5b507817bd80ca6578
MD5 hash: dd2d12d4f427963b4334a6f1061a252b
humanhash: nebraska-texas-colorado-oven
File name:dd2d12d4f427963b4334a6f1061a252b
Download: download sample
Signature AgentTesla
Create hunting rule
File size:433'588 bytes
First seen:2024-06-14 05:24:43 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 6144:hwAYwAYwAYwAYwAYwAYwAYwAYwAYwAZqf:t
TLSH T11C948B2DD34B02598F620377AB571E5142BDBA7EF38552B1302C537933EAC39A1252BE
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
1
# of downloads :
148
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2.rtf
Verdict:
Suspicious activity
Analysis date:
2024-06-14 05:26:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/585d216b-0eb7-43cd-a6dc-a7c0ca7cb57e

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

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666bd4dbda262547656033e2win7simulatehigh_evasion
Tags:
Network Office Static Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Connection attempt to an infection source by exploiting the app vulnerability
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching a service
Reading critical registry keys
DNS request
Connection attempt
Query of malicious DNS domain
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Sending a TCP 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/e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/666bd4316be3b3c7c233d757/reports/03865259-aef6-4a15-b7e2-cbbd73330437/overview
Verdict:
Malicious
Labled as:
CVE-2018-0798
Link:
https://www.hybrid-analysis.com/sample/e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2
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/1457045
Signature
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
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)
Sigma detected: Equation Editor Network Connection
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1457045 Sample: TTHFgL1sMe.rtf Startdate: 14/06/2024 Architecture: WINDOWS Score: 100 35 Multi AV Scanner detection for domain / URL 2->35 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 12 other signatures 2->41 8 WINWORD.EXE 291 18 2->8         started        process3 process4 10 EQNEDT32.EXE 11 8->10         started        15 EQNEDT32.EXE 8->15         started        dnsIp5 27 covid19help.top 104.21.83.128, 443, 49164 CLOUDFLARENETUS United States 10->27 23 C:\Users\user\AppData\...\hector73912.scr, PE32 10->23 dropped 25 C:\Users\user\AppData\Local\...\hecto[1].scr, PE32 10->25 dropped 51 Office equation editor establishes network connection 10->51 53 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->53 17 hector73912.scr 1 7 10->17         started        file6 signatures7 process8 signatures9 29 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->29 31 Machine Learning detection for dropped file 17->31 33 Injects a PE file into a foreign processes 17->33 20 hector73912.scr 2 17->20         started        process10 signatures11 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->43 45 Tries to steal Mail credentials (via file / registry access) 20->45 47 Tries to harvest and steal ftp login credentials 20->47 49 Tries to harvest and steal browser information (history, passwords, etc) 20->49
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2/
Threat name:
Document-OLE.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-06-13 17:35:31 UTC
File Type:
Document
Extracted files:
3
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4757p4tag2bvxek2lbpagbnmxlcicebslgdk6pjjgvtl465vkhza._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/240614-f4ae2awgja/
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 use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
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/e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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 e7fbf7f26036835b915a585e0305acbac48110325986af3d293566be7bb551f2

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2887711/

Comments


Avatar
zbet commented on 2024-06-14 05:24:44 UTC

url : hxxp://covid19help.top/hecto.doc