MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963
SHA3-384 hash: 3bf16bdecdd83bae388c83342af714a91f98843904074e61faedcce7c71c0ea304eb004869ea075c88d8747861eadfdc
SHA1 hash: 684f0dc565624af4d944b1d259173d329f4cef84
MD5 hash: e080c630c1cff4bf3eed195aaa93b31d
humanhash: jig-eleven-leopard-massachusetts
File name:PURCHASE ORDER (PO.4029530).exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:630'272 bytes
First seen:2020-08-31 09:02:09 UTC
Last seen:Never
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:ulRdPvOGZ1K9fBmn3FRlIAAOqALfK27PY3x9Pska3eyviJ/SVDiDC60hp7o6T+oL:W/XOUS5ORlaOqUK+PY3xta3mx
Threatray 9'505 similar samples on MalwareBazaar
TLSH 03D4222522AC5772C7FA0EF465597A27D3B0A953803DC694A8C0B2F995FB394433BE07
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: chestroniics.com
Sending IP: 37.48.85.197
From: sales2@chestroniics.com
Subject: RE: Official purchase order (PO.4029530)
Attachment: PURCHASE ORDER PO.4029530.zip (contains "PURCHASE ORDER (PO.4029530).exe")

AgentTesla SMTP exfil server:
mail.cortlandfire.org:587

AgentTesla SMTP exfil email address:
matthew.vanheusen@cortlandfire.org

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53324/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/455062
Signature
.NET source code contains potential unpacker
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279906 Sample: PURCHASE ORDER (PO.4029530).exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 64 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->64 66 Found malware configuration 2->66 68 Multi AV Scanner detection for dropped file 2->68 70 10 other signatures 2->70 7 DsWhv.exe 3 2->7         started        10 PURCHASE ORDER (PO.4029530).exe 4 2->10         started        13 DsWhv.exe 2->13         started        process3 file4 72 Multi AV Scanner detection for dropped file 7->72 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->74 76 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->76 15 DsWhv.exe 2 7->15         started        19 schtasks.exe 1 7->19         started        40 C:\Users\user\AppData\...\djlNlFkpBw.exe, PE32 10->40 dropped 42 C:\Users\user\AppData\Local\...\tmpCE75.tmp, XML 10->42 dropped 44 C:\...\PURCHASE ORDER (PO.4029530).exe.log, ASCII 10->44 dropped 78 Injects a PE file into a foreign processes 10->78 21 PURCHASE ORDER (PO.4029530).exe 2 5 10->21         started        24 schtasks.exe 1 10->24         started        26 schtasks.exe 13->26         started        28 DsWhv.exe 13->28         started        signatures5 process6 dnsIp7 46 mail.cortlandfire.org 15->46 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->54 56 Tries to steal Mail credentials (via file access) 15->56 58 Tries to harvest and steal ftp login credentials 15->58 60 Tries to harvest and steal browser information (history, passwords, etc) 15->60 30 conhost.exe 19->30         started        48 cortlandfire.org 35.208.151.201, 49725, 49739, 587 GOOGLE-2US United States 21->48 50 mail.cortlandfire.org 21->50 52 192.168.2.1 unknown unknown 21->52 36 C:\Users\user\AppData\Roaming\...\DsWhv.exe, PE32 21->36 dropped 38 C:\Users\user\...\DsWhv.exe:Zone.Identifier, ASCII 21->38 dropped 62 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->62 32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 02:09:22 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=v2ttdhlhpcpe4usmjl43zocc2zszhkl574s4ws7eh3xf6x5ynfrq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'495 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200831-e6bgjf57bx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email 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:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963

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 ea6a2787665f06612331c4967148471eba58a718177829627fda731ee9f6605c

AgentTesla

Executable exe aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963

(this sample)

  
Dropped by
MD5 4fdf42753e89f0c5c7be93654390f274
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53324/
  
Dropped by
SHA256 ea6a2787665f06612331c4967148471eba58a718177829627fda731ee9f6605c

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