MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4aeb26dbf763871a003bea68d96b7d6937437cfda61f18c36d1a72aa59667ac. 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: c4aeb26dbf763871a003bea68d96b7d6937437cfda61f18c36d1a72aa59667ac
SHA3-384 hash: fa5f1a1b32c40a7151fd5197a45b993611f9409df619c570994159567a35b4258b8b7c0fdbe85fc151830bca6d7bf30f
SHA1 hash: 5ce33ef7ea24192822e0d08117bcf218e823c0f0
MD5 hash: 5099aa8f3513015b42d023b433f56cd9
humanhash: double-september-tango-montana
File name:5099aa8f3513015b42d023b433f56cd9.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:534'016 bytes
First seen:2020-07-16 18:46:20 UTC
Last seen:2020-07-16 20:13:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:j4p12k4zU14mQTPNi4Z0i9LFXGu5LcmVbKyW48TrTzL9MDgDP:cpZAJGwJGMcm8yW
Threatray 11'084 similar samples on MalwareBazaar
TLSH CAB47CDC3910718EC44E8D768964DC30A6206C66F7FBD206A3C36E9F793D697CB152A2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
dellg.xyz:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/26987/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.7557.3165.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/388778
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 246566 Sample: zBFeA3m2Ov.exe Startdate: 18/07/2020 Architecture: WINDOWS Score: 100 30 dellg.xyz 2->30 48 Found malware configuration 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected AgentTesla 2->52 54 Machine Learning detection for sample 2->54 7 italian.exe 3 2->7         started        10 zBFeA3m2Ov.exe 3 2->10         started        13 italian.exe 2 2->13         started        signatures3 process4 file5 56 Multi AV Scanner detection for dropped file 7->56 58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->58 60 Machine Learning detection for dropped file 7->60 15 italian.exe 12 7->15         started        28 C:\Users\user\AppData\...\zBFeA3m2Ov.exe.log, ASCII 10->28 dropped 62 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 10->62 19 zBFeA3m2Ov.exe 2 15 10->19         started        64 Injects a PE file into a foreign processes 13->64 22 italian.exe 4 13->22         started        signatures6 process7 dnsIp8 32 dellg.xyz 15->32 36 Tries to harvest and steal ftp login credentials 15->36 38 Tries to harvest and steal browser information (history, passwords, etc) 15->38 40 Installs a global keyboard hook 15->40 34 dellg.xyz 19->34 24 C:\Users\user\AppData\Local\...\italian.exe, PE32 19->24 dropped 26 C:\Users\user\...\italian.exe:Zone.Identifier, ASCII 19->26 dropped 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->42 44 Tries to steal Mail credentials (via file access) 19->44 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->46 file9 signatures10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c4aeb26dbf763871a003bea68d96b7d6937437cfda61f18c36d1a72aa59667ac/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-16 18:48:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ysxle3n7oy4hdiadx2ti3fvx22jxin6p3jq7ddbw2gtsvjmwm6wa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 11'074 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/200716-xw2m4ctgjj/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
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
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Web download

AgentTesla

Executable exe c4aeb26dbf763871a003bea68d96b7d6937437cfda61f18c36d1a72aa59667ac

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/401255/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/26987/

Comments