MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b98ed6a71c93bc3722112643bea2bbe8767e016d807e0463266ee2fd47ad9e80. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b98ed6a71c93bc3722112643bea2bbe8767e016d807e0463266ee2fd47ad9e80
SHA3-384 hash: a97463b1fb33a6ad7ee30c6f0b78069b4402f6380d2e997a0d56d127e81dc769e0bb82d12f75080009a8f54232166c41
SHA1 hash: 2ab18231a84b26547a7b59798fb4e2e7fb8c2ef2
MD5 hash: 01621af96ebf2a36c65419d6f00d6043
humanhash: fanta-bluebird-yellow-oklahoma
File name:PI 3I502.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:394'537 bytes
First seen:2020-09-16 05:55:10 UTC
Last seen:2020-09-16 08:32:56 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 12288:QkVlzq2C6uRaRsXDZGI+Blwe7SSh+xWlHMxgQXF/jNH00kLFoc:Fq2C6uRJXDF+Blwe7rh/ls7RV0LJoc
TLSH 3984AFB876147DD62A6F536BDE96ACDD03B6166399CBA4CC8064BBC305A3335FE02805
Reporter cocaman
Tags:AgentTesla CVE-2017-11882 doc


Avatar
cocaman
Malicious email (T1566.001)
From: "sales@kalmeplc.com <sales@kalmeplc.com>"
Received: "from kalmeplc.com (unknown [95.211.217.177]) "
Date: "16 Sep 2020 01:00:17 -0700"
Subject: "RE: 20200605 signed Order"
Attachment: "Order.doc"

Intelligence

File Origin
# of uploads :
2
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FakeRTF-2.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

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
Sending an HTTP GET request
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
Creating a process from a recently created file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/467490
Signature
Antivirus detection for URL or domain
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
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 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
Sigma detected: File Dropped By EQNEDT32EXE
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 286215 Sample: PI 3I502.doc Startdate: 16/09/2020 Architecture: WINDOWS Score: 100 43 Multi AV Scanner detection for domain / URL 2->43 45 Found malware configuration 2->45 47 Antivirus detection for URL or domain 2->47 49 8 other signatures 2->49 7 EQNEDT32.EXE 11 2->7         started        12 WINWORD.EXE 336 18 2->12         started        14 EQNEDT32.EXE 2->14         started        process3 dnsIp4 33 gooddns.ir 194.180.224.87, 49165, 80 REBECCAHOSTUS unknown 7->33 23 C:\Users\user\AppData\Roaming\start4654.exe, PE32 7->23 dropped 25 C:\Users\user\AppData\Local\...\starx[1].exe, PE32 7->25 dropped 59 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->59 16 start4654.exe 7->16         started        file5 signatures6 process7 signatures8 35 Multi AV Scanner detection for dropped file 16->35 37 Detected unpacking (changes PE section rights) 16->37 39 Detected unpacking (overwrites its own PE header) 16->39 41 5 other signatures 16->41 19 start4654.exe 6 16->19         started        process9 dnsIp10 27 smtp.yandex.ru 77.88.21.158, 49166, 587 YANDEXRU Russian Federation 19->27 29 repository.uzto.netdna-cdn.com 108.161.187.74, 49167, 80 HIGHWINDS2US United States 19->29 31 2 other IPs or domains 19->31 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->51 53 Tries to steal Mail credentials (via file access) 19->53 55 Tries to harvest and steal ftp login credentials 19->55 57 Tries to harvest and steal browser information (history, passwords, etc) 19->57 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b98ed6a71c93bc3722112643bea2bbe8767e016d807e0463266ee2fd47ad9e80/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-09-16 05:17:33 UTC
File Type:
Document
Extracted files:
3
AV detection:
28 of 48 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xghnnjy4so6doiqrezb35iv35b3h4alnqb7aiyzgn3rp2r5nt2aa._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
upx spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200916-a7zh9wkmla/
Behaviour
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
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
Blacklisted process makes network request
Executes dropped EXE
UPX packed file
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Bloodhound
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b98ed6a71c93bc3722112643bea2bbe8767e016d807e0463266ee2fd47ad9e80

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples

File information

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

Malspam

AgentTesla

Word file doc b98ed6a71c93bc3722112643bea2bbe8767e016d807e0463266ee2fd47ad9e80

(this sample)

  
Delivery method
Distributed via e-mail attachment
  
Dropping
AgentTesla

Comments