MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 221f5da25d402be75cc7e28bb3edc241f293284d28fd4f37d0bf88213de4456f. 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: 221f5da25d402be75cc7e28bb3edc241f293284d28fd4f37d0bf88213de4456f
SHA3-384 hash: b2aa3c1edacce73e528d67df975d7e5beb622c7b0b24e652a0133a5a812cbf54bce26b0873fe45c448c933834bf1487c
SHA1 hash: 99824123e1b8efabdfa85f8c22857fd0727059cb
MD5 hash: 09110d6067e758a651e6bad7f867678a
humanhash: beer-dakota-oven-double
File name:NEW ORDER..inv.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:813'056 bytes
First seen:2020-07-30 08:47:41 UTC
Last seen:2020-07-30 10:00:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:ijDNNy1OvHiPGMMt65tWBkD0IlXM5FX01RAGbl7kXsHVb5Ok8NBnmKEmrAtN6XqG:qNI1O6PWtFBkIIC47b8Z/mDmrT
Threatray 10'700 similar samples on MalwareBazaar
TLSH 3F05C0047B50E51EC76F8F7ACAD44900EAB8F99A4B1BD387748133AF28CF36AA505571
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

From: WILSON <info@hampdenskb.co.uk>
Subject: NEW ORDER/// P.I policy terms.
Attachment: NEW ORDER..inv.zip (contains "NEW ORDER..inv.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/35425/
Detection(s):
SecuriteInfo.com.CIL.HeapOverride.Heur.24083.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
Creating a file in the %AppData% subdirectories
Launching the process to change network settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/403395
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
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)
Sigma detected: Capture Wi-Fi password
Sigma detected: Scheduled temp file as task from temp location
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 harvest and steal WLAN passwords
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
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 dnsIp2 2 Behavior Graph ID: 253926 Sample: NEW ORDER..inv.exe Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 62 g.msn.com 2->62 64 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->64 66 Found malware configuration 2->66 68 Sigma detected: Capture Wi-Fi password 2->68 70 Sigma detected: Scheduled temp file as task from temp location 2->70 72 12 other signatures 2->72 9 NEW ORDER..inv.exe 5 2->9         started        13 YYtJku.exe 2->13         started        15 YYtJku.exe 1 2->15         started        signatures3 process4 file5 48 C:\Users\user\AppData\...\&startupname&.exe, PE32 9->48 dropped 50 C:\Users\user\AppData\Local\...\tmp2365.tmp, XML 9->50 dropped 52 C:\...\&startupname&.exe:Zone.Identifier, ASCII 9->52 dropped 54 C:\Users\user\...54EW ORDER..inv.exe.log, ASCII 9->54 dropped 88 Injects a PE file into a foreign processes 9->88 17 NEW ORDER..inv.exe 2 5 9->17         started        22 schtasks.exe 1 9->22         started        24 NEW ORDER..inv.exe 9->24         started        26 YYtJku.exe 13->26         started        90 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->90 92 Machine Learning detection for dropped file 15->92 94 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->94 28 YYtJku.exe 2 15->28         started        30 YYtJku.exe 15->30         started        32 YYtJku.exe 15->32         started        signatures6 process7 dnsIp8 56 us2.smtp.mailhostbox.com 208.91.199.224, 49738, 587 PUBLIC-DOMAIN-REGISTRYUS United States 17->56 44 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 17->44 dropped 46 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 17->46 dropped 74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->74 76 Moves itself to temp directory 17->76 78 Tries to steal Mail credentials (via file access) 17->78 80 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->80 34 netsh.exe 3 17->34         started        36 conhost.exe 22->36         started        58 208.91.198.143, 49752, 587 PUBLIC-DOMAIN-REGISTRYUS United States 26->58 60 192.168.2.1 unknown unknown 26->60 82 Tries to harvest and steal ftp login credentials 26->82 84 Tries to harvest and steal browser information (history, passwords, etc) 26->84 86 Tries to harvest and steal WLAN passwords 26->86 38 netsh.exe 26->38         started        file9 signatures10 process11 process12 40 conhost.exe 34->40         started        42 conhost.exe 38->42         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/221f5da25d402be75cc7e28bb3edc241f293284d28fd4f37d0bf88213de4456f/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-30 08:49:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eipv3is5iav6oxgh4kf3h3ocihzjgkcnfd6u6n6qx6eccppeivxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
1de6d8667da47acd79149ba091ed36cf9e6b40e469ac7e49299792c72e21e764
AgentTesla
31fdfee945b5254c133f099214c603b772a6503d49e9426810f119e00c575d7c
AgentTesla
6c9e1808f94dfa36e4c5fc3b7a5a6eeb07d9628c5950b5e68a010aaa591121cb
AgentTesla
7ad3f47cffe8000f670fc88c0069317e4de985dd1802aab8050bca396340b20b
AgentTesla
7eda9593b5941e3572f7f72fb39e64161e55bbc50a771dc0d17f6312741b2bf7
AgentTesla
97c3cf905c068daf00bbc9c10810ff4437d953c3263e962b0454d0babcfe5494
AgentTesla
a6931da45204551140d8deebbd1cba3a8be3acdbd50668112dcc3ff6705dd25b
AgentTesla
a9f98038cac91d7d9f92301d7738f9187fdc1a879aa9db3373ce1fbe1bbd6eae
AgentTesla
bda971f1ded2aa476899e1cdd3ae336949daa09ddb0b086ec5679e590be896d0
AgentTesla
ec35d01b2a195c348b20565d96de7d5dc6385dd23e7452b55ee4200cca7490fa
AgentTesla
+ 10'690 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware persistence keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200730-7lpw943b16/
Behaviour
Suspicious behavior: RenamesItself
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Modifies service
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
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/221f5da25d402be75cc7e28bb3edc241f293284d28fd4f37d0bf88213de4456f

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

zip ffa41de9394c54c03f5542aeeea435a676c281cf2f59eb4f4e2a580011c21bca

AgentTesla

Executable exe 221f5da25d402be75cc7e28bb3edc241f293284d28fd4f37d0bf88213de4456f

(this sample)

  
Dropped by
MD5 abc6fe2d10e70f9ba7435cd29c06a2af
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35425/
  
Dropped by
SHA256 ffa41de9394c54c03f5542aeeea435a676c281cf2f59eb4f4e2a580011c21bca

Comments