MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08a5fb6838c3c5a8d96de60ddd54076366c8016fe16c00e741a76b00662da1b1. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 08a5fb6838c3c5a8d96de60ddd54076366c8016fe16c00e741a76b00662da1b1
SHA3-384 hash: df7bce20790fcae6af78cbdb28385adc1771c0c808265a40669964f7aa66f507b09ae54949b2abf3cd33b70603376c2b
SHA1 hash: 806974cc7e3b723922012693f477bbef925dffed
MD5 hash: 554006b43d2303718ca320be50657c82
humanhash: oscar-potato-oxygen-summer
File name:beautifulanimakingsayingshewasreallybeautifultogofromtheentirekingdomtounderstandhowmuchsheloved___herlandandhusbandsheisgood.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:79'896 bytes
First seen:2024-05-06 13:03:38 UTC
Last seen:2024-05-06 13:34:21 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 1536:xmgkvPbKPLhanYgHlYRkegexNd7lRQ3RCLl1vHSO2UVqQHAHAU:xmgkvP5Y4l4gexNdDQADHS3UoxAU
TLSH T1D073CA6EE34F0914DF55A67B435B4A4A09FCB33DB28140B179AC97343B9DC2E4A6287C
Reporter Anonymous
Tags:AgentTesla CVE-2017-11882 doc

Intelligence

File Origin
# of uploads :
3
# of downloads :
400
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
08a5fb6838c3c5a8d96de60ddd54076366c8016fe16c00e741a76b00662da1b1.doc
Verdict:
Suspicious activity
Analysis date:
2024-05-06 13:06:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/73944951-8ded-432f-a5b3-64005f81c917

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

TwinWave.EvilRTF.ObfusRunAway.20240409.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Creating a file in the %AppData% directory
Сreating synchronization primitives
Launching a service
Connection attempt by exploiting the app vulnerability
Launching a file downloaded from the Internet
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/08a5fb6838c3c5a8d96de60ddd54076366c8016fe16c00e741a76b00662da1b1/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/6638d549df07636df8d1335d/reports/a3c4680a-367a-4d0b-95ee-dc29b28ebd75/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/08a5fb6838c3c5a8d96de60ddd54076366c8016fe16c00e741a76b00662da1b1
Gathering data
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1436761
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 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)
Shellcode detected
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 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)
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1436761 Sample: heisgood.doc Startdate: 06/05/2024 Architecture: WINDOWS Score: 100 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for dropped file 2->72 74 20 other signatures 2->74 8 WINWORD.EXE 336 13 2->8         started        10 mpTrle.exe 2 2->10         started        13 mpTrle.exe 2->13         started        process3 signatures4 15 EQNEDT32.EXE 12 8->15         started        20 EQNEDT32.EXE 8->20         started        76 Antivirus detection for dropped file 10->76 78 Multi AV Scanner detection for dropped file 10->78 80 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 10->80 82 Machine Learning detection for dropped file 10->82 22 mpTrle.exe 12 2 10->22         started        84 Injects a PE file into a foreign processes 13->84 24 mpTrle.exe 13->24         started        26 mpTrle.exe 13->26         started        process5 dnsIp6 42 104.168.33.34, 49161, 80 AS-COLOCROSSINGUS United States 15->42 36 C:\Users\user\AppData\Roaming\html.exe, PE32 15->36 dropped 38 C:\Users\user\AppData\Local\...\html[1].exe, PE32 15->38 dropped 48 Office equation editor establishes network connection 15->48 50 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 15->50 28 html.exe 1 7 15->28         started        44 api.ipify.org 22->44 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->52 54 Tries to steal Mail credentials (via file / registry access) 24->54 56 Tries to harvest and steal ftp login credentials 24->56 58 Tries to harvest and steal browser information (history, passwords, etc) 24->58 file7 signatures8 process9 signatures10 86 Antivirus detection for dropped file 28->86 88 Multi AV Scanner detection for dropped file 28->88 90 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 28->90 92 2 other signatures 28->92 31 html.exe 13 4 28->31         started        process11 dnsIp12 46 api.ipify.org 172.67.74.152, 443, 49162, 49163 CLOUDFLARENETUS United States 31->46 40 C:\Users\user\AppData\Roaming\...\mpTrle.exe, PE32 31->40 dropped 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 31->60 62 Installs new ROOT certificates 31->62 64 Tries to steal Mail credentials (via file / registry access) 31->64 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 31->66 file13 signatures14
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/08a5fb6838c3c5a8d96de60ddd54076366c8016fe16c00e741a76b00662da1b1
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/08a5fb6838c3c5a8d96de60ddd54076366c8016fe16c00e741a76b00662da1b1/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-05-06 11:18:37 UTC
File Type:
Document
Extracted files:
4
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bcs7w2byypc2rwln4yg52vahmntmqalp4fwabz2bu5vqazrnugyq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240506-qaxzcacd4x/
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
Adds Run key to start application
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 Config
C2 Extraction:
https://api.telegram.org/bot6981982105:AAGJZG7U4ELI-QLExHS4a6AlsLp__P5_opc/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/08a5fb6838c3/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/08a5fb6838c3c5a8d96de60ddd54076366c8016fe16c00e741a76b00662da1b1

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.

  
Delivery method
Other

Comments