MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 07f36154cb584be7679faa22398bf9f79ee95639964a73b1f31c0fec6883b842. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 07f36154cb584be7679faa22398bf9f79ee95639964a73b1f31c0fec6883b842
SHA3-384 hash: 3674b06b34f6d517ae17f0a673de97d61456fa5de8b3d5eaab5461d1eaeba0e2dfd70d0ca4516565e664864f4a86eb8e
SHA1 hash: a336b3ba62e428c8eaa7d283ff029180dd77921c
MD5 hash: abf61590ceeb774adc2ecf02f799735b
humanhash: zebra-social-apart-butter
File name:Purchase Order nr53781.doc
Download: download sample
Signature AgentTesla
File size:317'689 bytes
First seen:2021-01-28 11:38:50 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 6144:d16LYrUVjkXdCfWd5ppJI8L4s5kSFxNPnfokdH9jGIWmiKduNNZJRfFsJ:dhBCfWdtJf3/dYkdH9qKd8DsJ
TLSH 5064BFF875043DE6766F426BDE96ADDD13B626639ACB94CC80A47BC305A3375FE02804
Reporter lowmal3
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
1
# of downloads :
110
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order nr53781.doc
Verdict:
Malicious activity
Analysis date:
2021-01-28 11:41:44 UTC
Tags:
trojan opendir exploit CVE-2017-11882 loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
DNS request
Creating a file in the %AppData% directory
Using the Windows Management Instrumentation requests
Launching a file downloaded from the Internet
Unauthorized injection to a recently created process by context flags manipulation
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Sending an HTTP GET request to an infection source
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Droppers Exploiting CVE-2017-11882
Sigma detected: EQNEDT32.EXE connecting to internet
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 345448 Sample: Purchase Order nr53781.doc Startdate: 28/01/2021 Architecture: WINDOWS Score: 100 32 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->32 34 Found malware configuration 2->34 36 Antivirus detection for URL or domain 2->36 38 7 other signatures 2->38 7 EQNEDT32.EXE 11 2->7         started        12 WINWORD.EXE 291 21 2->12         started        process3 dnsIp4 28 tunedinblog.com 150.95.81.183, 49167, 80 GMO-Z-COM-THGMO-ZcomNetDesignHoldingsCoLtdSG Singapore 7->28 22 C:\Users\user\AppData\...\haitian574.scr, PE32 7->22 dropped 24 C:\Users\user\AppData\...\haitianx[1].scr, PE32 7->24 dropped 48 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->48 14 haitian574.scr 12 7->14         started        file5 signatures6 process7 dnsIp8 30 193.239.147.103, 49168, 80 DEDIPATH-LLCUS Brunei Darussalam 14->30 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->50 52 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->52 54 Injects a PE file into a foreign processes 14->54 18 haitian574.scr 2 14->18         started        signatures9 process10 dnsIp11 26 polar.argondns.net 91.210.107.53, 587 NCONNECT-ASRU Russian Federation 18->26 40 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->40 42 Tries to steal Mail credentials (via file access) 18->42 44 Tries to harvest and steal ftp login credentials 18->44 46 Tries to harvest and steal browser information (history, passwords, etc) 18->46 signatures12
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2021-01-28 11:39:06 UTC
AV detection:
20 of 46 (43.48%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
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
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
Executes dropped EXE
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:ditekSHen
Description:detects RTF variant documents potentially exploiting CVE-2018-0802 or CVE-2017-11882
Rule name:INDICATOR_RTF_MalVer_Objects
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

File information


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

Malspam

AgentTesla

Word file doc 07f36154cb584be7679faa22398bf9f79ee95639964a73b1f31c0fec6883b842

(this sample)

  
Delivery method
Distributed via e-mail attachment

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