MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 407dbe5863d155a141aec5b500637d794275bf0680e2c8ca34e99f56a28f11a9. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 407dbe5863d155a141aec5b500637d794275bf0680e2c8ca34e99f56a28f11a9
SHA3-384 hash: f34188e4c854420ba5af8739d6853c3552369429afb9250873f0998ccf0f6601dac66dc902395b68a16342632d61968a
SHA1 hash: 47d48a204146fba4efce4b2ef901fc06b2deddc4
MD5 hash: 25ab12854daf3e994ddfeea8d0770f3f
humanhash: nitrogen-wisconsin-video-maine
File name:NEW RFQ_Dole Int'l Korea.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:484'864 bytes
First seen:2020-08-05 16:07:00 UTC
Last seen:2020-08-05 17:05:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:IP3SsOWMRZBfgv5GuiDOBpSuKRIc3+lDPmSr+tgrpiA:COWMRZBfC59XKtkQA
Threatray 10'652 similar samples on MalwareBazaar
TLSH CDA4F15477DC6BA2D9FC5FF4418C748003F8BD17AE22E3949E8170FA2272F5086A5A97
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: vps.confidencegroup.co
Sending IP: 162.144.54.78
From: CRYPTOBIT OPTION <adim1@Cryptobitoption.com>
Reply-To: anita.le1972@gmail.com
Subject: NEW RFQ_Dole Int'l Korea.
Attachment: NEW RFQ_Dole Intl Korea.zip (contains "NEW RFQ_Dole Int'l Korea.exe")

AgentTesla SMTP exfil server:
mail.flsrnidth.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39812/
Detection(s):
SecuriteInfo.com.Generic.mg.25ab12854daf3e99.24707.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/411622
Signature
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
Machine Learning detection for sample
Moves itself to temp directory
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)
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
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: 258103 Sample: NEW RFQ_Dole Int'l Korea.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 49 Found malware configuration 2->49 51 Yara detected AgentTesla 2->51 53 Yara detected AntiVM_3 2->53 55 4 other signatures 2->55 6 NEW RFQ_Dole Int'l Korea.exe 3 2->6         started        10 YYtJku.exe 2 2->10         started        12 YYtJku.exe 3 2->12         started        process3 file4 23 C:\Users\...23EW RFQ_Dole Int'l Korea.exe.log, ASCII 6->23 dropped 57 Injects a PE file into a foreign processes 6->57 14 NEW RFQ_Dole Int'l Korea.exe 2 5 6->14         started        19 YYtJku.exe 2 10->19         started        59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->59 61 Machine Learning detection for dropped file 12->61 63 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->63 21 YYtJku.exe 2 12->21         started        signatures5 process6 dnsIp7 29 flsrnidth.com 167.114.220.88, 49735, 49737, 587 OVHFR Canada 14->29 31 mail.flsrnidth.com 14->31 33 192.168.2.1 unknown unknown 14->33 25 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 14->25 dropped 27 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 14->27 dropped 37 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->37 39 Moves itself to temp directory 14->39 41 Tries to steal Mail credentials (via file access) 14->41 35 mail.flsrnidth.com 19->35 43 Tries to harvest and steal ftp login credentials 19->43 45 Tries to harvest and steal browser information (history, passwords, etc) 19->45 47 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->47 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/407dbe5863d155a141aec5b500637d794275bf0680e2c8ca34e99f56a28f11a9/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 16:08:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ib634wdd2fk2cqnoyw2qay35pfbhlpygqdrmrsru5gpvniupcguq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'642 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200805-rrb6mmpq8x/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: RenamesItself
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/407dbe5863d155a141aec5b500637d794275bf0680e2c8ca34e99f56a28f11a9

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

zip 8d7e7de33c7e1f4d0f3bc0ac20f92e2f2e0df9ee62b93a3e340cdfdbbf6a27c1

AgentTesla

Executable exe 407dbe5863d155a141aec5b500637d794275bf0680e2c8ca34e99f56a28f11a9

(this sample)

  
Dropped by
MD5 74969b24c9ebbc12c8a23b74fa7e22f7
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39812/
  
Dropped by
SHA256 8d7e7de33c7e1f4d0f3bc0ac20f92e2f2e0df9ee62b93a3e340cdfdbbf6a27c1

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