MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2377d61c538196654d62b670d92e4361c8f5c6fe18f1732758eb3e271bb4f46d. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2377d61c538196654d62b670d92e4361c8f5c6fe18f1732758eb3e271bb4f46d
SHA3-384 hash: a54d42fe3dba247906ff9dcf7cc5b1d8be1ce312d970f74f9546f7fc7bde0e69422514724e0014b1b1db9c16f077e3be
SHA1 hash: fb04cc2bac42103c59241b5dc56931007a36ac9a
MD5 hash: cd3f3c1dc1cddcdf0c89975b6e513f16
humanhash: salami-eighteen-red-nineteen
File name:IMG_61061_SCANNED.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:817'528 bytes
First seen:2021-02-22 12:52:03 UTC
Last seen:Never
File type:Word file doc
MIME type:text/rtf
ssdeep 12288:Nw0MI1BgkKW4InJ10FyiRyWf9miA8liA8H:W/3W5Qxf9ms2
TLSH 3D05A4B889DA00A4F39F80207DEFBC6011B3F5DBDEC65D2003BDE9715AA9A532D8594D
Reporter abuse_ch
Tags:AgentTesla doc Strato


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mo4-p04-ob.smtp.rzone.de
Sending IP: 81.169.146.176
From: Shehani Melisheya <sales3@labedulnatours.com>
Reply-To: invoicing@iatacollections.com
Subject: Re: Booking Request
Attachment: IMG_61061_SCANNED.doc

Intelligence

File Origin
# of uploads :
1
# of downloads :
128
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
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.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/2377d61c538196654d62b670d92e4361c8f5c6fe18f1732758eb3e271bb4f46d/results/dashboard
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Document With Few Pages
Document contains between one and three pages of content. Most malicious documents are sparse in page count.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/614146
Signature
.NET source code contains very large array initializations
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Connects to a URL shortener service
Contains functionality to capture screen (.Net source)
Document exploit detected (process start blacklist hit)
Drops PE files to the startup folder
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
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: Microsoft Office Product Spawning Windows Shell
Sigma detected: Powershell downloading file from url shortener site
Suspicious powershell command line found
Tries to download and execute files (via powershell)
Very long command line found
Yara detected AgentTesla
Yara detected Beds Obfuscator
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 356096 Sample: IMG_61061_SCANNED.doc Startdate: 22/02/2021 Architecture: WINDOWS Score: 100 63 Antivirus detection for URL or domain 2->63 65 Sigma detected: Powershell downloading file from url shortener site 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 13 other signatures 2->69 8 EXCEL.EXE 2 3 2->8         started        11 EXCEL.EXE 13 3 2->11         started        13 EXCEL.EXE 2->13         started        15 3 other processes 2->15 process3 signatures4 81 Suspicious powershell command line found 8->81 83 Very long command line found 8->83 85 Tries to download and execute files (via powershell) 8->85 17 powershell.exe 7 8->17         started        87 Document exploit detected (process start blacklist hit) 11->87 21 powershell.exe 16 7 11->21         started        24 powershell.exe 13->24         started        26 powershell.exe 13->26         started        89 Injects a PE file into a foreign processes 15->89 28 powershell.exe 15->28         started        30 Drivers.exe 15->30         started        32 Drivers.exe 15->32         started        process5 dnsIp6 55 C:\Users\user\AppData\Local\Temp\84675.exe, PE32 17->55 dropped 34 84675.exe 2 17->34         started        59 blog.srinathenterprises.in 35.200.172.247, 443, 49166, 49167 GOOGLEUS United States 21->59 61 bit.ly 67.199.248.11, 49165, 49168, 80 GOOGLE-PRIVATE-CLOUDUS United States 21->61 79 Powershell drops PE file 21->79 37 84675.exe 24->37         started        39 84675.exe 26->39         started        file7 signatures8 process9 signatures10 71 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 34->71 73 Machine Learning detection for dropped file 34->73 75 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 34->75 41 powershell.exe 7 34->41         started        45 84675.exe 2 34->45         started        77 Injects a PE file into a foreign processes 37->77 47 powershell.exe 37->47         started        49 84675.exe 37->49         started        51 powershell.exe 39->51         started        53 84675.exe 39->53         started        process11 file12 57 C:\Users\user\AppData\Roaming\...\Drivers.exe, PE32 41->57 dropped 91 Drops PE files to the startup folder 41->91 93 Powershell drops PE file 41->93 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2377d61c538196654d62b670d92e4361c8f5c6fe18f1732758eb3e271bb4f46d/
Threat name:
Document-RTF.Trojan.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2021-02-22 12:52:09 UTC
AV detection:
7 of 47 (14.89%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=en35mhctqglgktlcwzynslsdmheplrx6ddyxgj2y5m7cog5u6rwq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210222-kehfx9hlpx/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
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
Drops startup file
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
Executes dropped EXE
AgentTesla Payload
Beds Protector Packer
AgentTesla
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://bit.ly/2ZElo32
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/2377d61c538196654d62b670d92e4361c8f5c6fe18f1732758eb3e271bb4f46d

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:INDICATOR_RTF_EXPLOIT_CVE_2017_8759_2
Create hunting rule
Author:ditekSHen
Description:detects CVE-2017-8759 weaponized RTF documents.
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: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

Word file doc 2377d61c538196654d62b670d92e4361c8f5c6fe18f1732758eb3e271bb4f46d

(this sample)

  
Delivery method
Distributed via e-mail attachment

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