MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7738f4f6d42724e34b3aaadc6f5bdddda46910969686a19a472c00b73183e6de. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7738f4f6d42724e34b3aaadc6f5bdddda46910969686a19a472c00b73183e6de
SHA3-384 hash: 71a4cb3af09c2b7e378c99c5c67b53f1edc997c50ac942531a1abf88d0393adeee4472858009022dc4f0542857b386d7
SHA1 hash: 1c8a9af53bd414ac55b21941cfe18f230a67b16a
MD5 hash: 23ca36b7cde550140f219bf20ed8a4ff
humanhash: lima-diet-hydrogen-green
File name:23ca36b7cde550140f219bf20ed8a4ff
Download: download sample
Signature AgentTesla
Create hunting rule
File size:66'784 bytes
First seen:2024-04-30 06:46:31 UTC
Last seen:2024-04-30 07:33:00 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 1536:WJqPO8QuhCEBb6OatvEao13arS1uEM2yWJfsMhGeXNjbQlBH/:WJAO8Qu4E1ratvEao1J1uEM2yWJEMhGR
TLSH T14463A82EE74F0955DF55977B034A4A4A05FCB33DB38140A139AC97383BADC2E4A6297C
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
114
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Mensajes en cuarentena (29).zip
Verdict:
Malicious activity
Analysis date:
2024-04-29 19:23:34 UTC
Tags:
spam exploit cve-2017-11882 stegocampaign loader evasion ftp stealer agenttesla exfiltration payload
Link:
https://app.any.run/tasks/c9653627-f17e-45ce-8ee0-6379da6b253e

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.28765.RtfHeur.ObjUpd.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilRTF.ObfusRunAway.20240409.UNOFFICIAL
Create hunting rule

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
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Creating a process with a hidden window
Launching a service
Possible injection to a system process
Connection attempt by exploiting the app vulnerability
Creating a process from a recently created file
Launching a file downloaded from the Internet
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/7738f4f6d42724e34b3aaadc6f5bdddda46910969686a19a472c00b73183e6de/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/663093eebf7194638491c3c7/reports/fc4333f4-8dca-41c9-8278-f136fc2691fd/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/7738f4f6d42724e34b3aaadc6f5bdddda46910969686a19a472c00b73183e6de
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1433890
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Check if machine is in data center or colocation facility
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Document exploit detected (process start blacklist hit)
Found malware configuration
Injects a PE file into a foreign processes
Installs new ROOT certificates
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted 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: Base64 Encoded PowerShell Command Detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell download and load assembly
Sigma detected: Powershell download payload from hardcoded c2 list
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Very long command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1433890 Sample: dgYOTTzRDQ.rtf Startdate: 30/04/2024 Architecture: WINDOWS Score: 100 49 Multi AV Scanner detection for domain / URL 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 23 other signatures 2->55 10 WINWORD.EXE 291 15 2->10         started        process3 file4 33 ~WRF{AAA6ECBC-8B01...C-3D2122968C4A}.tmp, Composite 10->33 dropped 13 EQNEDT32.EXE 12 10->13         started        process5 dnsIp6 45 23.95.60.77, 49161, 49165, 80 AS-COLOCROSSINGUS United States 13->45 35 C:\Users\user\AppData\Roaming\mrningxla.js, Unicode 13->35 dropped 37 C:\Users\user\AppData\...\morningxla[1].js, Unicode 13->37 dropped 83 Office equation editor establishes network connection 13->83 85 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->85 18 wscript.exe 11 13->18         started        file7 signatures8 process9 dnsIp10 39 paste.ee 18->39 41 104.21.84.67, 443, 49162 CLOUDFLARENETUS United States 18->41 57 System process connects to network (likely due to code injection or exploit) 18->57 59 Suspicious powershell command line found 18->59 61 Wscript starts Powershell (via cmd or directly) 18->61 65 5 other signatures 18->65 22 powershell.exe 5 18->22         started        signatures11 63 Connects to a pastebin service (likely for C&C) 39->63 process12 signatures13 67 Suspicious powershell command line found 22->67 25 powershell.exe 12 4 22->25         started        process14 dnsIp15 43 uploaddeimagens.com.br 104.21.45.138, 443, 49163, 49164 CLOUDFLARENETUS United States 25->43 69 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 25->69 71 Writes to foreign memory regions 25->71 73 Injects a PE file into a foreign processes 25->73 29 AddInProcess32.exe 12 2 25->29         started        signatures16 process17 dnsIp18 47 ip-api.com 208.95.112.1, 49166, 80 TUT-ASUS United States 29->47 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 29->75 77 Tries to steal Mail credentials (via file / registry access) 29->77 79 Tries to harvest and steal browser information (history, passwords, etc) 29->79 81 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 29->81 signatures19
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/7738f4f6d42724e34b3aaadc6f5bdddda46910969686a19a472c00b73183e6de
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7738f4f6d42724e34b3aaadc6f5bdddda46910969686a19a472c00b73183e6de/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 20:01:05 UTC
File Type:
Document
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o44pj5wue4sogsz2vlog6w653wsgseews2dkdgshfqalommd43pa._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240430-hj7k5seg22/
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
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Blocklisted process makes network request
AgentTesla
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7738f4f6d427/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/7738f4f6d42724e34b3aaadc6f5bdddda46910969686a19a472c00b73183e6de

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 7738f4f6d42724e34b3aaadc6f5bdddda46910969686a19a472c00b73183e6de

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2832393/

Comments


Avatar
zbet commented on 2024-04-30 06:46:32 UTC

url : hxxp://23.95.60.77/mrngwescreentherootforentirepurposehappenedwthhappinessskeisverybeatuiful___heisverygoodnadbeautiufl.doc