MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b894d774bf391f6a133e0f8901e0807ef75996cea19e865efee1f804bc300e3. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b894d774bf391f6a133e0f8901e0807ef75996cea19e865efee1f804bc300e3
SHA3-384 hash: 49447c518afaa1f437ca2013f8706d70f51a5983636be049004aec196c8fbc96551db25f002ca214fd513dee8c1d079b
SHA1 hash: 7405b1b66561d98f76937552a7b5043803233505
MD5 hash: 3823b7a10c3bbe3661e9513439ae092b
humanhash: blossom-asparagus-bakerloo-william
File name:3823b7a10c3bbe3661e9513439ae092b
Download: download sample
Signature AgentTesla
Create hunting rule
File size:24'638 bytes
First seen:2023-08-08 03:58:01 UTC
Last seen:2023-08-08 04:30:06 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:CAg+VwCg7Ke8zo1BAD2f0q40Xz+q/7xZH/DOSXQKgS7Y7Rmn:CAg+CKp+a2fvCSz7OSxzn
TLSH T1E3B218012BCE69F2C398F2735269C44945FDFB3339122AE9789CA19237AD11D5BBC170
Reporter zbetcheckin
Tags:AgentTesla CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
141
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
3823b7a10c3bbe3661e9513439ae092b
Verdict:
Malicious activity
Analysis date:
2023-08-08 04:00:00 UTC
Tags:
opendir exploit cve-2017-11882 loader stealer agenttesla
Link:
https://app.any.run/tasks/82e82816-714f-4202-a4fb-a50eb28c732f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Sending a custom TCP request
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %temp% directory
Сreating synchronization primitives
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/7b894d774bf391f6a133e0f8901e0807ef75996cea19e865efee1f804bc300e3/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/64d1bd50daa9db505340269a/reports/c87b8d74-cf9d-4c96-8552-de964911f36e/overview
Verdict:
Malicious
Labled as:
CVE-2017-11882
Link:
https://www.hybrid-analysis.com/sample/7b894d774bf391f6a133e0f8901e0807ef75996cea19e865efee1f804bc300e3
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/1287399
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 string decryption to hide its real strings
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: Scheduled temp file as task from temp location
Suspicious execution chain found
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1287399 Sample: 6RQrV9ieT7.rtf Startdate: 08/08/2023 Architecture: WINDOWS Score: 100 82 Multi AV Scanner detection for domain / URL 2->82 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 14 other signatures 2->88 7 EQNEDT32.EXE 12 2->7         started        12 taskeng.exe 1 2->12         started        14 sOFvE.exe 2->14         started        16 3 other processes 2->16 process3 dnsIp4 68 23.94.148.61, 49181, 80 AS-COLOCROSSINGUS United States 7->68 62 C:\Users\user\AppData\Local\Temp\Chrome.exe, PE32 7->62 dropped 64 C:\Users\user\AppData\...\ChromeSetup[1].exe, PE32 7->64 dropped 108 Office equation editor establishes network connection 7->108 110 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->110 18 Chrome.exe 1 8 7->18         started        22 TQUTWTmOC.exe 12->22         started        112 Adds a directory exclusion to Windows Defender 14->112 114 Injects a PE file into a foreign processes 14->114 24 sOFvE.exe 14->24         started        27 powershell.exe 14->27         started        29 schtasks.exe 14->29         started        116 Multi AV Scanner detection for dropped file 16->116 118 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->118 120 Machine Learning detection for dropped file 16->120 31 powershell.exe 16->31         started        33 schtasks.exe 16->33         started        35 sOFvE.exe 16->35         started        37 4 other processes 16->37 file5 signatures6 process7 dnsIp8 58 C:\Users\user\AppData\Roaming\TQUTWTmOC.exe, PE32 18->58 dropped 60 C:\Users\user\AppData\Local\...\tmp4E31.tmp, XML 18->60 dropped 90 Multi AV Scanner detection for dropped file 18->90 92 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->92 94 Machine Learning detection for dropped file 18->94 106 2 other signatures 18->106 39 Chrome.exe 13 4 18->39         started        44 powershell.exe 6 18->44         started        46 schtasks.exe 18->46         started        48 Chrome.exe 18->48         started        96 Adds a directory exclusion to Windows Defender 22->96 98 Injects a PE file into a foreign processes 22->98 50 TQUTWTmOC.exe 22->50         started        52 powershell.exe 22->52         started        54 schtasks.exe 22->54         started        56 3 other processes 22->56 78 api4.ipify.org 24->78 80 api.ipify.org 24->80 100 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->100 102 Tries to steal Mail credentials (via file / registry access) 24->102 104 Tries to harvest and steal browser information (history, passwords, etc) 24->104 file9 signatures10 process11 dnsIp12 70 api4.ipify.org 64.185.227.156, 443, 49182 WEBNXUS United States 39->70 72 api.ipify.org 39->72 66 C:\Users\user\AppData\Roaming\...\sOFvE.exe, PE32 39->66 dropped 122 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 39->122 124 Tries to steal Mail credentials (via file / registry access) 39->124 126 Hides that the sample has been downloaded from the Internet (zone.identifier) 39->126 74 173.231.16.76, 443, 49183, 49184 WEBNXUS United States 50->74 76 api.ipify.org 50->76 file13 signatures14
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7b894d774bf391f6a133e0f8901e0807ef75996cea19e865efee1f804bc300e3/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-08-08 03:59:05 UTC
File Type:
Document
Extracted files:
4
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=poeu252l6oi7nijt4d4jahqia7xxlglm5im6qzpp5ypyas6dadrq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230808-ejg4psad78/
Behaviour
Creates scheduled task(s)
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 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 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 family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7b894d774bf3/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/7b894d774bf391f6a133e0f8901e0807ef75996cea19e865efee1f804bc300e3

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.

Web download

AgentTesla

Rich Text Format (RTF) rtf 7b894d774bf391f6a133e0f8901e0807ef75996cea19e865efee1f804bc300e3

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2702083/

Comments


Avatar
zbet commented on 2023-08-08 03:58:02 UTC

url : hxxp://23.94.148.61/RSS/j/000000000000000%23%23%23%23%23%23%23%23%23%23%23%23%23%23000000000000000000%23%23%23%23%23%23%23%23%23%23%23%23%23%2300000000000%23%23%23%23%23%23%23%230.doc