MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71084f920ae924a807346f506c6b352503c7143c355c33b1b1d3fda96e07522a. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 71084f920ae924a807346f506c6b352503c7143c355c33b1b1d3fda96e07522a
SHA3-384 hash: 259bb87ce3750acc9e579caf02d9d6293d90d0a7029b7068e2de1e78c4f7deb3824abe7962d922050b1f7ee71af7db62
SHA1 hash: 880910bc325bf734780f150f17899ebb9e6ef273
MD5 hash: 84fdaa7f08b4ca04a4baecfc127c83f4
humanhash: snake-bulldog-april-coffee
File name:PURCHASE ORDER.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:908'800 bytes
First seen:2020-07-18 08:54:04 UTC
Last seen:2020-07-18 10:23:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:tbrMnqjzGYIdjMxMSo15GXacXYp3uyAjrMnnmI2k4zUEfiZXHcjWq5oMRusbxuhq:tbrvxguwcLjrUZMj7P1mqN
Threatray 10'716 similar samples on MalwareBazaar
TLSH 3A154BF7A74991CEC49FDEB8C4820B710987ED85F1F9920B02537C36367ABA1D98506B
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ecplaza.net
Sending IP: 209.58.149.66
From: Rashidah <ksu@ecplaza.net>
Subject: PURCHASE ORDER
Attachment: PURCHASE ORDER.gz (contains "PURCHASE ORDER.exe")

AgentTesla SMTP exfil server:
smtp.rezuit.pro:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/27678/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WXK.30004.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Creating a file in the %temp% subdirectories
Reading critical registry keys
Creating a file
Deleting a recently created file
Reading Telegram data
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a TCP request to an infection source
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/388636
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Sigma detected: Scheduled temp file as task from temp location
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246491 Sample: PURCHASE ORDER.exe Startdate: 18/07/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Multi AV Scanner detection for dropped file 2->37 39 Sigma detected: Scheduled temp file as task from temp location 2->39 41 8 other signatures 2->41 7 PURCHASE ORDER.exe 7 2->7         started        process3 file4 23 C:\Users\user\AppData\...behaviorgraphLvEyRmxSiNk.exe, PE32 7->23 dropped 25 C:\Users\...behaviorgraphLvEyRmxSiNk.exe:Zone.Identifier, ASCII 7->25 dropped 27 C:\Users\user\AppData\Local\...\tmp9FF2.tmp, XML 7->27 dropped 29 C:\Users\user\...\PURCHASE ORDER.exe.log, ASCII 7->29 dropped 43 Injects a PE file into a foreign processes 7->43 11 PURCHASE ORDER.exe 4 7->11         started        15 schtasks.exe 1 7->15         started        17 PURCHASE ORDER.exe 7->17         started        19 PURCHASE ORDER.exe 7->19         started        signatures5 process6 dnsIp7 31 smtp.rezuit.pro 11->31 33 us2.smtp.mailhostbox.com 208.91.199.225, 49734, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->33 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 21 conhost.exe 15->21         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/71084f920ae924a807346f506c6b352503c7143c355c33b1b1d3fda96e07522a/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-18 08:55:09 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oeee7eqk5eskqbzun5igy2zveub4ofb4gvodhmnr2p62s3qhkiva._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'706 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/200718-mq9lb6be42/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
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.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/71084f920ae924a807346f506c6b352503c7143c355c33b1b1d3fda96e07522a

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.

Malspam

AgentTesla

gz ead9d14960dbfd6d65f042dbab982932de1e8da09ce22c8b7abe13f16f18fd2e

AgentTesla

Executable exe 71084f920ae924a807346f506c6b352503c7143c355c33b1b1d3fda96e07522a

(this sample)

  
Dropped by
MD5 b77b9e5e852f6ed5ec78fd5d4f497d00
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 ead9d14960dbfd6d65f042dbab982932de1e8da09ce22c8b7abe13f16f18fd2e
Cape
Cape
https://www.capesandbox.com/analysis/27678/

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