MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1579595bc8439774307b941ef20cbcd1e6f3e767859debd8e5e448eda09a0f2. 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

SHA256 hash: a1579595bc8439774307b941ef20cbcd1e6f3e767859debd8e5e448eda09a0f2
SHA3-384 hash: f41abf3723698050dc3a1a6a035eee6c3a14c97a5a2cfad3120ac24618983bd8533b079f906f7732a7b747c4df8abb7f
SHA1 hash: 04132a50ceeea7ffca48b33dd438b4262c514f36
MD5 hash: 5f7b8fbc2986750fee5789827ee050b8
humanhash: magnesium-lake-lithium-nine
File name:Supply of Sanitary fixtures.exe
Download: download sample
Signature AgentTesla
File size:686'080 bytes
First seen:2020-09-03 09:01:11 UTC
Last seen:2020-09-03 12:56:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:bAHOq3gjhm43BvHaMSajampRGrlDnhTNwxzBi6ynLZtlyjmzoJpr1gnLM5j:Uuq3gjPSkmlDnhTNw9oX1Pydxgnk
Threatray 9'471 similar samples on MalwareBazaar
TLSH E7E4F1B683945B35E53EB7BA0023879C13F1920AD337EA4DEEC412C91786BA556737C2
Reporter cocaman
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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 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: 281454 Sample: Supply of Sanitary fixtures.exe Startdate: 03/09/2020 Architecture: WINDOWS Score: 100 70 Found malware configuration 2->70 72 Multi AV Scanner detection for dropped file 2->72 74 Sigma detected: Scheduled temp file as task from temp location 2->74 76 10 other signatures 2->76 7 Supply of Sanitary fixtures.exe 7 2->7         started        11 zvVbs.exe 5 2->11         started        13 zvVbs.exe 2->13         started        process3 file4 42 C:\Users\user\AppData\Roaming\SYYtyrPvO.exe, PE32 7->42 dropped 44 C:\Users\...\SYYtyrPvO.exe:Zone.Identifier, ASCII 7->44 dropped 46 C:\Users\user\AppData\Local\...\tmpDDB8.tmp, XML 7->46 dropped 48 C:\...\Supply of Sanitary fixtures.exe.log, ASCII 7->48 dropped 78 Injects a PE file into a foreign processes 7->78 15 Supply of Sanitary fixtures.exe 2 7 7->15         started        20 schtasks.exe 1 7->20         started        22 Supply of Sanitary fixtures.exe 7->22         started        80 Multi AV Scanner detection for dropped file 11->80 82 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->82 84 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->84 86 2 other signatures 11->86 24 zvVbs.exe 4 11->24         started        26 schtasks.exe 1 11->26         started        28 zvVbs.exe 13->28         started        30 schtasks.exe 13->30         started        signatures5 process6 dnsIp7 50 anartem.pt 188.93.230.198, 49732, 49736, 49742 CLARANET-ASClaraNETLTDGB Portugal 15->50 52 mail.anartem.pt 15->52 38 C:\Users\user\AppData\Roaming\...\zvVbs.exe, PE32 15->38 dropped 40 C:\Users\user\...\zvVbs.exe:Zone.Identifier, ASCII 15->40 dropped 58 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->58 60 Tries to steal Mail credentials (via file access) 15->60 62 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->62 32 conhost.exe 20->32         started        54 mail.anartem.pt 24->54 34 conhost.exe 26->34         started        56 mail.anartem.pt 28->56 64 Tries to harvest and steal ftp login credentials 28->64 66 Tries to harvest and steal browser information (history, passwords, etc) 28->66 68 Installs a global keyboard hook 28->68 36 conhost.exe 30->36         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-09-03 09:03:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer evasion persistence trojan spyware family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
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:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
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

Executable exe a1579595bc8439774307b941ef20cbcd1e6f3e767859debd8e5e448eda09a0f2

(this sample)

Comments