MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8f9ccab47a8ec10861607e8de21c6617cd36e4eefbffe90144f357f3566657d. 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: e8f9ccab47a8ec10861607e8de21c6617cd36e4eefbffe90144f357f3566657d
SHA3-384 hash: 04334fa7ef11f7c44d081400f76c9643f2340490ec94f39f1122add7542ce6aa5e187988b3b1ce9dd4ace8c17d916dc1
SHA1 hash: 4b3c7f97a4356d5e9a5c60bc311787996b8ee9c9
MD5 hash: 2302708633c9b0d95ac11e0b8cd9b84f
humanhash: ink-coffee-pluto-harry
File name:Universal050820.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:464'384 bytes
First seen:2020-08-05 16:08:44 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 12288:3P3S+np7zxJpOqpokAkPygBGOnq7cIgpD1LhgrpiA:FpHxqkJPfBGe4gpD16QA
Threatray 10'648 similar samples on MalwareBazaar
TLSH 04A4F108338D6B69D9FCAFF9415C35C003B87E66AD52E3595EC0B0FA2633B40C665A97
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: abaad.om
Sending IP: 37.49.230.200
From: Syamkumar Korat <syam.kumar@abaad.om>
Subject: Bank Transfer Advice
Attachment: Universal050820.Z (contains "Universal050820.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
78
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39815/
Detection(s):
SecuriteInfo.com.Generic.mg.2302708633c9b0d9.14765.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/411636
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 signatures2 2 Behavior Graph ID: 258114 Sample: Universal050820.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Yara detected AgentTesla 2->47 49 Yara detected AntiVM_3 2->49 51 2 other signatures 2->51 6 Universal050820.exe 3 2->6         started        10 YYtJku.exe 3 2->10         started        12 YYtJku.exe 2 2->12         started        process3 file4 25 C:\Users\user\...\Universal050820.exe.log, ASCII 6->25 dropped 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->53 55 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->55 57 Injects a PE file into a foreign processes 6->57 14 Universal050820.exe 2 5 6->14         started        19 Universal050820.exe 6->19         started        59 Machine Learning detection for dropped file 10->59 21 YYtJku.exe 2 10->21         started        23 YYtJku.exe 12->23         started        signatures5 process6 dnsIp7 31 mail.transfastc.com 108.167.160.43, 49748, 49749, 587 UNIFIEDLAYER-AS-1US United States 14->31 27 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 14->27 dropped 29 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 14->29 dropped 33 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->33 35 Moves itself to temp directory 14->35 37 Tries to steal Mail credentials (via file access) 14->37 39 Tries to harvest and steal ftp login credentials 21->39 41 Tries to harvest and steal browser information (history, passwords, etc) 21->41 43 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->43 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e8f9ccab47a8ec10861607e8de21c6617cd36e4eefbffe90144f357f3566657d/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 16:10:09 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5d44zk2hvdwbbbqwa7un4iogmf6ng3so56775eauj42x6nlgmv6q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'638 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/200805-j2vp575xan/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
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 web browsers
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/e8f9ccab47a8ec10861607e8de21c6617cd36e4eefbffe90144f357f3566657d

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.

e84b55b8a702bab5c9a1182cd0fcc02b

AgentTesla

Executable exe e8f9ccab47a8ec10861607e8de21c6617cd36e4eefbffe90144f357f3566657d

(this sample)

  
Dropped by
MD5 e84b55b8a702bab5c9a1182cd0fcc02b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39815/

Comments