MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 df1fa70cbb3ccf5e5ba8e95db170dacfd78c2929a5a347d1838d9d5b9df47b7b. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: df1fa70cbb3ccf5e5ba8e95db170dacfd78c2929a5a347d1838d9d5b9df47b7b
SHA3-384 hash: a9e08a9bc839d2c2c494dc8d734ed0a3e27197053d4b995ed1de9c68695642ab3a8762756d284e8efbe68c49f4bfa7f0
SHA1 hash: bbe56f70d3362a2d0edd046dc5c5b6477fe6d749
MD5 hash: c70d317b9b5128fb06fb8e5799ba565d
humanhash: louisiana-moon-snake-october
File name:Invitation LetterTerms.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'909'383 bytes
First seen:2022-04-14 05:34:23 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 12288:IJgPyx6sdENjr4B5CITO/WROLgcba/8maJXM8WAb6C7v5UPw:HPSdWnK596WRaS8mmc6bH7BU4
TLSH T1059558F0AD01D4C1F57E5B6AF2FD3A48A1343217EBC94A4A00E7E5651EF6A11B90ECC9
Reporter abuse_ch
Tags:AgentTesla CVE-2017-11882 doc

Intelligence

File Origin
# of uploads :
1
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invitation LetterTerms.doc
Verdict:
Malicious activity
Analysis date:
2022-04-14 05:38:16 UTC
Tags:
exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/10e3fc89-afa5-4a26-9ae3-576f12b9fe1c

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
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.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.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Rtf.Exploit.CVE_2018_0802-6825822-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Sending a custom TCP request
Changing an executable file
Infecting executable files
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/df1fa70cbb3ccf5e5ba8e95db170dacfd78c2929a5a347d1838d9d5b9df47b7b/results/dashboard
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/6257b288eab80a7a6c101dba/reports/6c822061-2980-45a7-8e69-83d4d3258f56/overview
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/976570
Signature
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Downloads files with wrong headers with respect to MIME Content-Type
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
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 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 / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 609059 Sample: Invitation LetterTerms.doc Startdate: 14/04/2022 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 12 other signatures 2->49 8 EQNEDT32.EXE 1 2->8         started        13 WINWORD.EXE 291 21 2->13         started        process3 dnsIp4 39 blueprogress.org 104.21.42.15, 49173, 80 CLOUDFLARENETUS United States 8->39 29 C:\Users\user\AppData\Roaming\indixe.exe, PE32 8->29 dropped 67 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 8->67 15 indixe.exe 18 8->15         started        31 ~WRF{A8C0C197-2CE0...9-1C82AD2640B0}.tmp, Composite 13->31 dropped file5 signatures6 process7 file8 33 C:\Users\user\AppData\...\qdrqppnyug.exe, PE32 15->33 dropped 41 Multi AV Scanner detection for dropped file 15->41 19 qdrqppnyug.exe 15->19         started        signatures9 process10 signatures11 51 Multi AV Scanner detection for dropped file 19->51 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 19->53 55 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 19->55 57 2 other signatures 19->57 22 qdrqppnyug.exe 1 15 19->22         started        process12 dnsIp13 35 transportescascao.com 188.93.230.115, 49174, 49175, 49178 CLARANET-ASClaraNETLTDGB Portugal 22->35 37 windowsupdatebg.s.llnwi.net 22->37 27 C:\Users\user\AppData\...\tmpG156.tmp (copy), PE32 22->27 dropped 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->59 61 Tries to steal Mail credentials (via file / registry access) 22->61 63 Tries to harvest and steal ftp login credentials 22->63 65 Tries to harvest and steal browser information (history, passwords, etc) 22->65 file14 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/df1fa70cbb3ccf5e5ba8e95db170dacfd78c2929a5a347d1838d9d5b9df47b7b/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-04-14 05:00:20 UTC
File Type:
Document
Extracted files:
4
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=34p2odf3hthv4w5i5fo3c4g2z7lyykjjuwrupumdrwovxhpupn5q._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/220414-f91jeaged3/
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 use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
NSIS installer
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/df1fa70cbb3ccf5e5ba8e95db170dacfd78c2929a5a347d1838d9d5b9df47b7b

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.

File information

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

Comments