MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a78ad475aa220c139ac4eed8bb80b8e9cf5dd5a44739dce0fc6959677b369c4b. 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: a78ad475aa220c139ac4eed8bb80b8e9cf5dd5a44739dce0fc6959677b369c4b
SHA3-384 hash: 605cbe5cec4916d9d80ac175e8a65537e6c9700bf66ffdb9d13b489a1b3f82c993f1adb03706c4eb8de1ca17e879a250
SHA1 hash: 7d030268d99703c9903edaeb9136ac639d8d221c
MD5 hash: 8d18ba18baab74845ed6fe47a38a57eb
humanhash: bulldog-alanine-october-delaware
File name:a78ad475aa220c139ac4eed8bb80b8e9cf5dd5a44739dce0fc6959677b369c4b
Download: download sample
Signature AgentTesla
Create hunting rule
File size:583'168 bytes
First seen:2020-07-28 07:47:17 UTC
Last seen:2020-07-29 09:02:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'636 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:aymKTo3IgXMdom+JDb/HsI6Yv6LApgYr0Dhkj:4KTo4Vd8HsI/H090
Threatray 10'678 similar samples on MalwareBazaar
TLSH 61C4F10011659B2FD76B86B87023C5F01227E098EB61EE7B5E8FE09718E26F975C3653
Reporter JAMESWT_WT
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
6
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/33350/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.52692.30248.31463.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
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.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/399634
Signature
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies the hosts file
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 252091 Sample: mfjG7xlTvE Startdate: 28/07/2020 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 8 other signatures 2->55 8 mfjG7xlTvE.exe 7 2->8         started        12 wuapihost.exe 2->12         started        process3 file4 27 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\Local\...\tmp1561.tmp, XML 8->29 dropped 31 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->31 dropped 33 C:\Users\user\AppData\...\mfjG7xlTvE.exe.log, ASCII 8->33 dropped 57 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->57 59 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->59 61 Injects a PE file into a foreign processes 8->61 14 mfjG7xlTvE.exe 2 8->14         started        19 schtasks.exe 1 8->19         started        signatures5 process6 dnsIp7 37 smtp.taiemerica.com 14->37 39 us2.smtp.mailhostbox.com 208.91.198.143, 49731, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->39 35 C:\Windows\System32\drivers\etc\hosts, ASCII 14->35 dropped 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->41 43 Tries to steal Mail credentials (via file access) 14->43 45 Tries to harvest and steal ftp login credentials 14->45 47 2 other signatures 14->47 21 reg.exe 1 14->21         started        23 conhost.exe 19->23         started        file8 signatures9 process10 process11 25 conhost.exe 21->25         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a78ad475aa220c139ac4eed8bb80b8e9cf5dd5a44739dce0fc6959677b369c4b/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 07:49:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u6fni5nkeigbhgwe53mlxafy5hhv3vnei445zyh4nfmwo6zwtrfq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'668 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200728-qk87ac43x6/
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Drops file in Drivers directory
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a78ad475aa220c139ac4eed8bb80b8e9cf5dd5a44739dce0fc6959677b369c4b

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.

Cape
Cape
https://www.capesandbox.com/analysis/33350/

Comments