MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 feac2864dd0dde4d9fa58c93930c21c8a0786de9f1260e742b61447c826f7fb9. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: feac2864dd0dde4d9fa58c93930c21c8a0786de9f1260e742b61447c826f7fb9
SHA3-384 hash: 853f535cc4cfd80ece9d5b0857c5f057d30c98ba468c7ecd43530fa5642ed41de7d81d04fb043fd0928485911f270c8b
SHA1 hash: 3a5bd322faea19daf63ef8b49a33f07273c99366
MD5 hash: cdb6c112f58e80ca4aedbd4706d017a6
humanhash: high-georgia-washington-happy
File name:part1.rtf
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'264'013 bytes
First seen:2020-12-02 16:51:16 UTC
Last seen:Never
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 24576:jgXFS9ql6kafXYp22wapkS7gQMsz5IYCHZ7g6QSQBUAaCuDsYGRB0B4k:L
TLSH D745BFF876047DE6266F536BDA96ACDD03B617629ACBA4CC80A477C305A3375FE02C05
Reporter lowmal3
Tags:AgentTesla CVE-2017-11882

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

Intelligence

File Origin
# of uploads :
1
# of downloads :
150
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

MiscreantPunch.RTF.2017-0199.Obfus.170830.UNOFFICIAL
Create hunting rule

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

TwinWave.EvilDoc.DOCXSTRGOOD.RTFSTR._EQUATION.200422.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
Sending an HTTP GET request
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/feac2864dd0dde4d9fa58c93930c21c8a0786de9f1260e742b61447c826f7fb9/results/dashboard
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/553835
Signature
.NET source code references suspicious native API functions
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 326015 Sample: part1.rtf Startdate: 02/12/2020 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected AgentTesla 2->47 49 7 other signatures 2->49 7 EQNEDT32.EXE 15 2->7         started        12 WINWORD.EXE 336 20 2->12         started        14 EQNEDT32.EXE 2->14         started        process3 dnsIp4 35 cdn.discordapp.com 162.159.130.233, 443, 49165, 49166 CLOUDFLARENETUS United States 7->35 25 C:\Users\user\AppData\Roaming\kdot8653.exe, PE32 7->25 dropped 27 C:\Users\user\AppData\Local\...\kdot[1].exe, PE32 7->27 dropped 29 C:\Users\user\AppData\Local\...\kdot[1].exe, ASCII 7->29 dropped 59 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 7->59 16 kdot8653.exe 7->16         started        31 C:\Users\user\Desktop\~$part1.rtf, data 12->31 dropped file5 signatures6 process7 signatures8 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->39 41 Injects a PE file into a foreign processes 16->41 19 kdot8653.exe 12 10 16->19         started        23 kdot8653.exe 16->23         started        process9 dnsIp10 33 mail.sardaplywood.com 72.52.178.59, 49168, 49169, 49170 LIQUIDWEBUS United States 19->33 51 Tries to steal Mail credentials (via file access) 19->51 53 Tries to harvest and steal ftp login credentials 19->53 55 Tries to harvest and steal browser information (history, passwords, etc) 19->55 57 Installs a global keyboard hook 19->57 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/feac2864dd0dde4d9fa58c93930c21c8a0786de9f1260e742b61447c826f7fb9/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2020-12-02 16:52:07 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=72wcqzg5bxpe3h5frsjzgdbbzcqhq3pj6eta45blmfchzatpp64q._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/201202-2rww91g492/
Behaviour
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
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Blacklisted process makes network request
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Exploit
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/feac2864dd0dde4d9fa58c93930c21c8a0786de9f1260e742b61447c826f7fb9

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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information

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

Malspam

AgentTesla

Rich Text Format (RTF) rtf feac2864dd0dde4d9fa58c93930c21c8a0786de9f1260e742b61447c826f7fb9

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments