MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e41a4bc1146c02cf7e2e5f2a040ad3835f4852b675bfef98eeaed0c16d8bee3. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1e41a4bc1146c02cf7e2e5f2a040ad3835f4852b675bfef98eeaed0c16d8bee3
SHA3-384 hash: f4640dd45a2df9e234dc87483a58f9d6b8afc7fca9a19988267037e3ca324f78a208114b42462240d03baf1751db9d37
SHA1 hash: 1d8e4add2babcd745934a6924efc52a73edf74ee
MD5 hash: 9d9881934e837298eef34f31bd4fdac6
humanhash: yankee-lemon-glucose-black
File name:new order.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:454'656 bytes
First seen:2020-08-05 09:04:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:9ANK444pi5LC4nP8Bcv0xjqSJOlvRv69Bce8VHfyo:9WKZ4GLGqc5POvGNa
Threatray 10'627 similar samples on MalwareBazaar
TLSH 9EA4E04C36A0A519F5BA1F3F9C3001C38E66F85FDD26DA4B2AB5116D407E6ACAC71F21
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: primealuminium.com
Sending IP: 103.99.1.145
From: Rukiya>primemsa@primealuminium.com
Subject: RE: new order
Attachment: new order.rar (contains "new order.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
62
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39283/
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
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410708
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts 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: 257621 Sample: new order.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 67 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->67 69 Found malware configuration 2->69 71 Sigma detected: Scheduled temp file as task from temp location 2->71 73 10 other signatures 2->73 8 new order.exe 5 2->8         started        12 gKWBf.exe 2 2->12         started        14 gKWBf.exe 3 2->14         started        process3 file4 53 C:\Users\user\AppData\Roaming\xbxCRaah.exe, PE32 8->53 dropped 55 C:\Users\...\xbxCRaah.exe:Zone.Identifier, ASCII 8->55 dropped 57 C:\Users\user\AppData\Local\...\tmp3BFB.tmp, XML 8->57 dropped 59 C:\Users\user\AppData\...\new order.exe.log, ASCII 8->59 dropped 87 Injects a PE file into a foreign processes 8->87 16 new order.exe 2 5 8->16         started        21 schtasks.exe 1 8->21         started        23 new order.exe 8->23         started        25 gKWBf.exe 12->25         started        27 schtasks.exe 12->27         started        89 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->89 91 Machine Learning detection for dropped file 14->91 93 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 14->93 29 gKWBf.exe 2 14->29         started        31 schtasks.exe 1 14->31         started        signatures5 process6 dnsIp7 61 yitaipackaging.com 35.213.167.237, 49751, 49752, 587 GOOGLEUS United States 16->61 63 mail.yitaipackaging.com 16->63 47 C:\Users\user\AppData\Roaming\...\gKWBf.exe, PE32 16->47 dropped 49 C:\Windows\System32\drivers\etc\hosts, ASCII 16->49 dropped 51 C:\Users\user\...\gKWBf.exe:Zone.Identifier, ASCII 16->51 dropped 75 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->75 77 Tries to steal Mail credentials (via file access) 16->77 79 Modifies the hosts file 16->79 33 reg.exe 16->33         started        35 conhost.exe 21->35         started        65 mail.yitaipackaging.com 25->65 81 Tries to harvest and steal ftp login credentials 25->81 83 Tries to harvest and steal browser information (history, passwords, etc) 25->83 85 Hides that the sample has been downloaded from the Internet (zone.identifier) 25->85 37 reg.exe 25->37         started        39 conhost.exe 27->39         started        41 conhost.exe 31->41         started        file8 signatures9 process10 process11 43 conhost.exe 33->43         started        45 conhost.exe 37->45         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1e41a4bc1146c02cf7e2e5f2a040ad3835f4852b675bfef98eeaed0c16d8bee3/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 03:56:49 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dza2jpari3acz57c4xzkaqfnha27jbjlm5n756mo5lwqyfwyx3rq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'617 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/200805-v5djt6vvtj/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1e41a4bc1146c02cf7e2e5f2a040ad3835f4852b675bfef98eeaed0c16d8bee3

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

rar 7a84ade5bcef198d32f876ff301affb17f25b9718d5471639d3285226ae1a23e

AgentTesla

Executable exe 1e41a4bc1146c02cf7e2e5f2a040ad3835f4852b675bfef98eeaed0c16d8bee3

(this sample)

  
Dropped by
MD5 219afd411f645db61020a790dc26c41c
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39283/
  
Dropped by
SHA256 7a84ade5bcef198d32f876ff301affb17f25b9718d5471639d3285226ae1a23e

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