MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d91349cce8a3d1faa9e07ed9bba541028e400d12b6a2f0be561658212a123121. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d91349cce8a3d1faa9e07ed9bba541028e400d12b6a2f0be561658212a123121
SHA3-384 hash: 0a8c586c5099a7486d9c8091ba40e9da3c44ec97fd548836a70cf70182213a151dd00b090b4fdb2fe46274e9a279f1c6
SHA1 hash: 8ae3e85ebbda0ba747bdaec1cc5fbb027563fbf9
MD5 hash: d58ca2f7c7c61075bdb420fcf95601c1
humanhash: dakota-princess-minnesota-bakerloo
File name:SC-246214.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:3'957 bytes
First seen:2024-05-02 15:12:26 UTC
Last seen:2024-05-03 11:11:08 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 96:EFHU2Z1y6KQgv7zWob3O+YjvQv7UnvHBgJR:2UQytQe7zV3XYjvyYn/SJR
TLSH T15E812AB03ACCA567E30BD8E1998CBD568175F1325DCA764D540AD7A8017F275F923C82
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 doc

Intelligence

File Origin
# of uploads :
4
# of downloads :
429
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d91349cce8a3d1faa9e07ed9bba541028e400d12b6a2f0be561658212a123121.doc
Verdict:
Malicious activity
Analysis date:
2024-05-02 15:17:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e40d9a8e-726a-4ed5-9438-77d89f355efd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/msword
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

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
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Launching the default Windows debugger (dwwin.exe)
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Launching a service
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Forced shutdown of a system process
Stealing user critical data
Creating a process from a recently created file
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/d91349cce8a3d1faa9e07ed9bba541028e400d12b6a2f0be561658212a123121/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Labled as:
CVE-2018-0798
Link:
https://www.hybrid-analysis.com/sample/d91349cce8a3d1faa9e07ed9bba541028e400d12b6a2f0be561658212a123121
Gathering data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1435420
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
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 a global keyboard hook
Malicious sample detected (through community Yara rule)
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)
Sample uses process hollowing technique
Sigma detected: EQNEDT32.EXE connecting to internet
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 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 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
Yara detected AntiVM3
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1435420 Sample: SC-246214.doc Startdate: 02/05/2024 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 16 other signatures 2->48 8 WINWORD.EXE 336 19 2->8         started        process3 process4 10 EQNEDT32.EXE 11 8->10         started        15 EQNEDT32.EXE 8->15         started        dnsIp5 32 goupbuy.com 204.11.59.228, 49161, 80 PUBLIC-DOMAIN-REGISTRYUS United States 10->32 26 C:\Users\user\AppData\Roaming\word.exe, PE32+ 10->26 dropped 28 C:\Users\user\AppData\...\djLT2.1[1].exe, PE32+ 10->28 dropped 58 Office equation editor establishes network connection 10->58 60 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->60 17 word.exe 2 10->17         started        file6 signatures7 process8 signatures9 34 Multi AV Scanner detection for dropped file 17->34 36 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 17->36 38 Writes to foreign memory regions 17->38 40 3 other signatures 17->40 20 RegSvcs.exe 12 2 17->20         started        24 MSBuild.exe 17->24         started        process10 dnsIp11 30 api.ipify.org 172.67.74.152, 443, 49162 CLOUDFLARENETUS United States 20->30 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->50 52 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->52 54 Tries to steal Mail credentials (via file / registry access) 20->54 56 3 other signatures 20->56 signatures12
Score:
94%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d91349cce8a3d1faa9e07ed9bba541028e400d12b6a2f0be561658212a123121
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d91349cce8a3d1faa9e07ed9bba541028e400d12b6a2f0be561658212a123121/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-05-02 09:08:34 UTC
File Type:
Document
Extracted files:
3
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3ejutthiupi7vkpap3m3xjkbakheadisw2rpbpswczmcckqsgeqq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240502-slqqhsbf2y/
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 FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
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/d91349cce8a3/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/d91349cce8a3d1faa9e07ed9bba541028e400d12b6a2f0be561658212a123121

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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments