MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8b957b53da50425dfd655553ad255dd26e307971d477edd441ae2c2248ff121. 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 2 File information Comments

SHA256 hash: f8b957b53da50425dfd655553ad255dd26e307971d477edd441ae2c2248ff121
SHA3-384 hash: a747ff7cd8f788260af37984c6bb77fc8a13dd32c1180b5f2ada2a22261003d5dafc60282ea823535cf2f2695e4c077f
SHA1 hash: b1faff73da2d18dbb16672ff314411b591f7ccdb
MD5 hash: 4281ca32097171a4055f4bbff1ab433a
humanhash: bravo-jersey-paris-angel
File name:4281ca32097171a4055f4bbff1ab433a.exe
Download: download sample
Signature AgentTesla
File size:1'009'664 bytes
First seen:2020-12-09 10:17:45 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:Px4dNAZDbnrM93g9w80PoIkiAfrBEJ+nIJi2TVwg+k34iNcIUx:PGGr6g+jPoIkiqVEYIE1g+J
Threatray 1'865 similar samples on MalwareBazaar
TLSH 70259E3CAE6D5526F5B68B3CC4E025A0956E6BA37703E93E14F521CC0B737DE88D0629
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 328511 Sample: Fzr7sLvmtW.exe Startdate: 09/12/2020 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->35 37 Found malware configuration 2->37 39 Multi AV Scanner detection for dropped file 2->39 41 9 other signatures 2->41 7 Fzr7sLvmtW.exe 7 2->7         started        process3 file4 21 C:\Users\user\AppData\Roaming\HzveCEzkA.exe, PE32 7->21 dropped 23 C:\Users\...\HzveCEzkA.exe:Zone.Identifier, ASCII 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp2CC7.tmp, XML 7->25 dropped 27 C:\Users\user\AppData\...\Fzr7sLvmtW.exe.log, ASCII 7->27 dropped 43 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->43 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->45 47 Injects a PE file into a foreign processes 7->47 11 Fzr7sLvmtW.exe 15 2 7->11         started        15 schtasks.exe 1 7->15         started        17 Fzr7sLvmtW.exe 7->17         started        signatures5 process6 dnsIp7 29 us2.smtp.mailhostbox.com 208.91.199.224, 49769, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->29 31 elb097307-934924932.us-east-1.elb.amazonaws.com 54.204.14.42, 443, 49768 AMAZON-AESUS United States 11->31 33 3 other IPs or domains 11->33 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Tries to steal Mail credentials (via file access) 11->51 53 Tries to harvest and steal ftp login credentials 11->53 55 Tries to harvest and steal browser information (history, passwords, etc) 11->55 19 conhost.exe 15->19         started        signatures8 process9
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-12-09 00:30:12 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
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:
f8b957b53da50425dfd655553ad255dd26e307971d477edd441ae2c2248ff121
MD5 hash:
4281ca32097171a4055f4bbff1ab433a
SHA1 hash:
b1faff73da2d18dbb16672ff314411b591f7ccdb
SH256 hash:
9584f6d01e6452371cc9b4828030a13045d99c243c497b63628828e66aabe26f
MD5 hash:
7476e403eef14ac403c63c7279831780
SHA1 hash:
8387f558e30dc115987ac2b5c174a41302471abf
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 f8b957b53da50425dfd655553ad255dd26e307971d477edd441ae2c2248ff121

(this sample)

  
Delivery method
Distributed via web download

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