MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc6d35f4452a755df065a169caaecd0bbcfe785da7f9cf4fb6bc195376ac1768. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc6d35f4452a755df065a169caaecd0bbcfe785da7f9cf4fb6bc195376ac1768
SHA3-384 hash: 2a2426ca4059f5df7a5b4331ed2896b624bd93d233ac8c14d202cea0054e91a05f3b6a2b741cf471117d8eb0d9a9f464
SHA1 hash: 570d6409ab85430f7329158a5c0f835e7917e01a
MD5 hash: d1b2e30fa3a39e439f278603b6e5dd1e
humanhash: blossom-zulu-river-uncle
File name:Approved Quotation.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:78'508 bytes
First seen:2024-02-14 12:58:20 UTC
Last seen:2024-02-14 14:30:57 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 768:9wAbZSibMX9gRWjtwAbZSibMX9gRWjtwAbZSibMX9gRWjZaT6JeYwM8pVnUgMEWi:9wAlRkwAlRkwAlR+mYrUn7ME/
TLSH T14973C22DD34B02598F520377AB1B1E5142BDBA7EF39552B1306C533933EAC39A1252BE
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 doc

Intelligence

File Origin
# of uploads :
2
# of downloads :
344
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28765.RtfHeur.ObjUpd.UNOFFICIAL
Create hunting rule

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

MiscreantPunch.EvilRTF.CommonLure.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.RoomService.20230808.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
Creating a file in the %AppData% directory
Сreating synchronization primitives
Changing an executable file
Creating a file
Launching a service
Reading critical registry keys
Connection attempt
Sending a custom TCP request
Setting a keyboard event handler
Connection attempt by exploiting the app vulnerability
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 custom TCP request by exploiting the app vulnerability
Creating a process from a recently created file
Infecting executable files
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/fc6d35f4452a755df065a169caaecd0bbcfe785da7f9cf4fb6bc195376ac1768/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit lolbin packed remote shellcode
Link:
https://www.filescan.io/uploads/65ccb91a276e7c195323c4a4/reports/1d656f7e-0b51-41e6-988b-1d7b7431ec89/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/fc6d35f4452a755df065a169caaecd0bbcfe785da7f9cf4fb6bc195376ac1768
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=104c48d8-dee6-4ff0-a3b3-63433df1ff80
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/1392131
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
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)
Sample uses string decryption to hide its real strings
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 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)
Yara detected AgentTesla
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1392131 Sample: Approved Quotation.doc Startdate: 14/02/2024 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for dropped file 2->42 44 17 other signatures 2->44 8 WINWORD.EXE 291 15 2->8         started        process3 file4 22 ~WRF{79972E41-A7E7...3-DD6850B98C24}.tmp, Composite 8->22 dropped 11 EQNEDT32.EXE 11 8->11         started        process5 dnsIp6 28 universalmovies.top 104.21.52.194, 443, 49162 CLOUDFLARENETUS United States 11->28 24 C:\Users\user\AppData\...\parka28503.exe, PE32 11->24 dropped 26 C:\Users\user\AppData\...\parkazx[1].exe, PE32 11->26 dropped 54 Installs new ROOT certificates 11->54 56 Office equation editor establishes network connection 11->56 58 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 11->58 16 parka28503.exe 2 11->16         started        file7 signatures8 process9 signatures10 30 Multi AV Scanner detection for dropped file 16->30 32 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->32 34 Machine Learning detection for dropped file 16->34 36 Injects a PE file into a foreign processes 16->36 19 parka28503.exe 2 16->19         started        process11 signatures12 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->46 48 Tries to steal Mail credentials (via file / registry access) 19->48 50 Tries to harvest and steal browser information (history, passwords, etc) 19->50 52 Installs a global keyboard hook 19->52
Score:
62%
Verdict:
Susipicious
File Type:
ASCII
Link:
https://malprob.io/report/fc6d35f4452a755df065a169caaecd0bbcfe785da7f9cf4fb6bc195376ac1768
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fc6d35f4452a755df065a169caaecd0bbcfe785da7f9cf4fb6bc195376ac1768/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-02-14 12:59:06 UTC
File Type:
Document
Extracted files:
4
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7rwtl5cffj2v34dfufu4vlwnbo6p46c5u7446t5wxqmvg5vmc5ua._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240214-p73enabb7w/
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
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 Config
C2 Extraction:
https://api.telegram.org/bot6888405524:AAFs03Xpn0T6cMtLnkT-8XOF1Lm2jt7RNyI/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fc6d35f4452a/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/fc6d35f4452a755df065a169caaecd0bbcfe785da7f9cf4fb6bc195376ac1768

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_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.

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