MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40
SHA3-384 hash: 1a4af393c046238b657dad3f5017558d5255809db066cfb47227a1cc76147af87eaee30f0278c6ef7d0bdc29ffdc6e52
SHA1 hash: f3135ef6aaae083288912876236f69302d169495
MD5 hash: 3c4e8ae62e269c2f16af58c9ea32e37c
humanhash: california-white-alpha-kilo
File name:MV SUN OCEAN BUNKER INV.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:306'484 bytes
First seen:2024-04-16 15:31:50 UTC
Last seen:2024-04-16 16:44:03 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 3072:PsXvKMEesXvKMEesXvKMEesXvKMEesXvKMEesXvKME9XOUVwOsMmU2:gKMeKMeKMeKMeKMeKMAXOE592
TLSH T140546A2ED34F02698F920372AB1B1E95A6BDBA3EB39051B1341C433533D9C7D52266BD
TrID 71.4% (.PZ2) Poser pose (12500/1/4)
28.5% (.RTF) Rich Text Format (5000/1)
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 doc

Intelligence

File Origin
# of uploads :
2
# of downloads :
353
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40.doc
Verdict:
Malicious activity
Analysis date:
2024-04-16 15:57:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8c83bb73-0d85-44a9-adc3-b877debfc657

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Changing an executable file
Launching a service
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process with a hidden window
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
Sending a TCP request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Enabling autorun by creating a file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/661e99f775339da04f935ee2/reports/d7231f91-cfab-47f4-aa85-47f548651a7c/overview
Verdict:
Malicious
Labled as:
Exploit.RTF
Link:
https://www.hybrid-analysis.com/sample/8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=92d580a5-4171-45fe-8d67-b9afc24e805d
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/1426845
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Installs a global keyboard hook
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
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 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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Microsoft Office Child Process
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1426845 Sample: MV SUN OCEAN BUNKER INV.doc Startdate: 16/04/2024 Architecture: WINDOWS Score: 100 53 smtp.gfs-ld.com 2->53 55 us2.smtp.mailhostbox.com 2->55 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus detection for dropped file 2->75 77 19 other signatures 2->77 9 WINWORD.EXE 336 14 2->9         started        11 taskeng.exe 1 2->11         started        signatures3 process4 process5 13 EQNEDT32.EXE 11 9->13         started        18 EQNEDT32.EXE 9->18         started        20 gZePPqH.exe 11->20         started        dnsIp6 69 dukeenergyltd.top 104.21.25.202, 443, 49161 CLOUDFLARENETUS United States 13->69 49 C:\Users\user\AppData\...\loud2bnihohj75.scr, PE32 13->49 dropped 51 C:\Users\user\...\m4V7uvgzXDHblwp[1].scr, PE32 13->51 dropped 103 Installs new ROOT certificates 13->103 105 Office equation editor establishes network connection 13->105 107 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->107 22 loud2bnihohj75.scr 1 10 13->22         started        109 Antivirus detection for dropped file 20->109 111 Multi AV Scanner detection for dropped file 20->111 113 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->113 115 3 other signatures 20->115 26 gZePPqH.exe 20->26         started        29 powershell.exe 20->29         started        31 powershell.exe 20->31         started        33 2 other processes 20->33 file7 signatures8 process9 dnsIp10 45 C:\Users\user\AppData\Roaming\gZePPqH.exe, PE32 22->45 dropped 47 C:\Users\user\AppData\Local\...\tmp6FF3.tmp, XML 22->47 dropped 87 Antivirus detection for dropped file 22->87 89 Multi AV Scanner detection for dropped file 22->89 91 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 22->91 101 6 other signatures 22->101 35 loud2bnihohj75.scr 22->35         started        39 powershell.exe 4 22->39         started        41 powershell.exe 4 22->41         started        43 schtasks.exe 22->43         started        63 smtp.gfs-ld.com 26->63 65 192.168.2.255, 137, 138 unknown unknown 26->65 67 2 other IPs or domains 26->67 93 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 26->93 95 Tries to steal Mail credentials (via file / registry access) 26->95 97 Tries to harvest and steal browser information (history, passwords, etc) 26->97 99 Installs a global keyboard hook 26->99 file11 signatures12 process13 dnsIp14 57 smtp.gfs-ld.com 35->57 59 ip-api.com 208.95.112.1, 49162, 49165, 80 TUT-ASUS United States 35->59 61 2 other IPs or domains 35->61 79 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 35->79 81 Tries to steal Mail credentials (via file / registry access) 35->81 83 Installs a global keyboard hook 35->83 85 Installs new ROOT certificates 39->85 signatures15
Score:
89%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-04-16 02:18:52 UTC
File Type:
Document
Extracted files:
3
AV detection:
18 of 36 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rvgnygi7t7mef3zbypbbuqzei2uc5auih6ko3ttzmoj4htt7zjaa._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240416-sylmbsfb9x/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
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
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
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8d4cdc191f9f/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/8d4cdc191f9fd842ef21c3c21a432446a82e82883f94edce796393c3ce7fca40

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.

Comments