MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b883ad70ea161ee562014a3a0280a1d1d8d01f5fd240b89374608f3c05d8692. 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 2 File information Comments

SHA256 hash: 4b883ad70ea161ee562014a3a0280a1d1d8d01f5fd240b89374608f3c05d8692
SHA3-384 hash: 765370b07552669c5fcc4863676defd535c10bd648a0fde8ea3afbceb4aba56cd12b5ebdcbcfadaf36778f1aedf626a1
SHA1 hash: 1fb28828609caf96d03f8cacc553b965d176cea1
MD5 hash: b4752ea9a091f525e65c620e11a21e91
humanhash: autumn-hot-enemy-alaska
File name:b4752ea9a091f525e65c620e11a21e91.exe
Download: download sample
Signature AgentTesla
File size:595'968 bytes
First seen:2020-10-21 10:55:06 UTC
Last seen:2020-10-26 06:16:32 UTC
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:awtzJepB1XXfH9no7ob6e78wxavMA34iCh7mCX+D51qTmKR1fuM:xepBlX/JfOe78waIiCFmCX+D51q13mM
Threatray 700 similar samples on MalwareBazaar
TLSH E4C42324335551E2EFEF4338B4F1181963B5A8878407A7A93A5C58F71F67B87098A3F8
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
mail.seroval.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a 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
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Maps a DLL or memory area into another process
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: RegAsm connects to smtp port
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 301932 Sample: veatyQmRBd.exe Startdate: 21/10/2020 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Antivirus / Scanner detection for submitted sample 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 3 other signatures 2->40 7 veatyQmRBd.exe 1 2->7         started        10 YYtJku.exe 2 2->10         started        12 YYtJku.exe 1 2->12         started        process3 signatures4 42 Writes to foreign memory regions 7->42 44 Maps a DLL or memory area into another process 7->44 14 veatyQmRBd.exe 7->14         started        17 RegAsm.exe 2 7->17         started        19 conhost.exe 10->19         started        21 conhost.exe 12->21         started        process5 signatures6 54 Writes to foreign memory regions 14->54 56 Maps a DLL or memory area into another process 14->56 23 RegAsm.exe 2 4 14->23         started        58 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 17->58 60 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 17->60 process7 dnsIp8 30 seroval.com 66.70.204.222, 49746, 587 OVHFR Canada 23->30 32 mail.seroval.com 23->32 28 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 23->28 dropped 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 23->46 48 Tries to steal Mail credentials (via file access) 23->48 50 Tries to harvest and steal ftp login credentials 23->50 52 2 other signatures 23->52 file9 signatures10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-10-20 17:49:12 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
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
Unpacked files
SH256 hash:
4b883ad70ea161ee562014a3a0280a1d1d8d01f5fd240b89374608f3c05d8692
MD5 hash:
b4752ea9a091f525e65c620e11a21e91
SHA1 hash:
1fb28828609caf96d03f8cacc553b965d176cea1
SH256 hash:
0ab8fbe77e619d4f4930e1b3ef85875a20055ddb6dabfe7a5c4cd6722f0331e7
MD5 hash:
80974a8681793c4d92cd884c0415f154
SHA1 hash:
586783b4c95f9afb61b34464ed1f33f99e67e991
SH256 hash:
9a2121fdf4ba002b1a25119100d7a1dbeab29fc832316134138e1936632fb5a9
MD5 hash:
498f57bc623e988250fa679178308fc3
SHA1 hash:
6a6613587387665c1531ae9a340f8d62957adf84
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Web download

AgentTesla

Executable exe 4b883ad70ea161ee562014a3a0280a1d1d8d01f5fd240b89374608f3c05d8692

(this sample)

  
Delivery method
Distributed via web download

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