MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45b93bb13395c8a791fe0eaa763bd84e963a5b7a8bc348cfd1230004cf080e3b. 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: 45b93bb13395c8a791fe0eaa763bd84e963a5b7a8bc348cfd1230004cf080e3b
SHA3-384 hash: 96bfe1a44574305d9f96b576c5995f5b3478acd60086d2decc873852f30fd691a62691912788320fcf1be8a86d948175
SHA1 hash: f6a3c3fcb3ff3b5ec1f5d50316d9d2ddd33ebc2f
MD5 hash: b8f076670ddf9a95d96969270ea0c1fc
humanhash: salami-bacon-fanta-alpha
File name:statement.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:740'864 bytes
First seen:2020-07-31 07:05:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:7c0mLuB79GxZJ9UOcYdDB42PrTWjPCtXsk8XeUyOBtq9:nnux6bYj42cPsXz8Xd
Threatray 10'660 similar samples on MalwareBazaar
TLSH 55F4C0047F51E94EC2AB8F7BC6D45800EEB8E49A4B1BD38B34C173AF19CE39A9901575
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: hashtron.com
Sending IP: 37.49.230.200
From: Hashtron International FZE <sales@hashtron.com>
Subject: SOA
Attachment: statement.Z (contains "statement.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/35876/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Moving of the original file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/404623
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 dnsIp2 2 Behavior Graph ID: 254541 Sample: statement.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 100 36 g.msn.com 2->36 38 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->38 56 Found malware configuration 2->56 58 Yara detected AgentTesla 2->58 60 Yara detected AntiVM_3 2->60 62 2 other signatures 2->62 7 statement.exe 1 2->7         started        11 YYtJku.exe 2->11         started        13 YYtJku.exe 1 2->13         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\statement.exe.log, ASCII 7->34 dropped 64 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->64 66 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->66 68 Injects a PE file into a foreign processes 7->68 15 statement.exe 2 5 7->15         started        20 statement.exe 7->20         started        22 statement.exe 7->22         started        24 YYtJku.exe 2 11->24         started        70 Machine Learning detection for dropped file 13->70 26 YYtJku.exe 2 13->26         started        28 YYtJku.exe 13->28         started        signatures6 process7 dnsIp8 40 mail.transfastc.com 108.167.160.43, 49728, 49738, 587 UNIFIEDLAYER-AS-1US United States 15->40 42 192.168.2.1 unknown unknown 15->42 30 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 15->30 dropped 32 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 15->32 dropped 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->44 46 Moves itself to temp directory 15->46 48 Tries to steal Mail credentials (via file access) 15->48 50 Tries to harvest and steal ftp login credentials 24->50 52 Tries to harvest and steal browser information (history, passwords, etc) 24->52 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->54 file9 signatures10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/45b93bb13395c8a791fe0eaa763bd84e963a5b7a8bc348cfd1230004cf080e3b/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-30 21:37:21 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iw4txmjtsxekpep6b2vhmo6yj2lduw32rpburt6remaajtyiby5q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
hawkeyekeylogger
Create hunting rule
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AgentTesla
+ 10'650 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/200731-htx3ay64ba/
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 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:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/45b93bb13395c8a791fe0eaa763bd84e963a5b7a8bc348cfd1230004cf080e3b

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

z 1d4951f02d5c26944df041e9ea612b3ecada3da54ef9e264772d5379df50be80

AgentTesla

Executable exe 45b93bb13395c8a791fe0eaa763bd84e963a5b7a8bc348cfd1230004cf080e3b

(this sample)

  
Dropped by
MD5 da2b93e9f16a95db47d5952cd14fafc3
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35876/
  
Dropped by
SHA256 1d4951f02d5c26944df041e9ea612b3ecada3da54ef9e264772d5379df50be80

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