MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 885b4be18edba1732c82c251d834e07946e015fe31d55eb6d30f53814027417b. 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


Intelligence File information Yara 3 Comments

SHA256 hash: 885b4be18edba1732c82c251d834e07946e015fe31d55eb6d30f53814027417b
SHA3-384 hash: 6e4ab1489c33bbe774e6ca25cd31036f3e954deed5c3936a7f64dc9bb7383a7f3c5eb40a3c3dad73fc4b25c8a2faf04e
SHA1 hash: fea6605a9ad6c1a7e004141d34dcf2eb155d54d7
MD5 hash: 0443c829e8f15fcbf2dca2b8941265d6
humanhash: zebra-fix-failed-georgia
File name:TT_Copy-23874-print.............Pdf.exe
Download: download sample
Signature AgentTesla
File size:486'912 bytes
First seen:2020-07-31 13:38:24 UTC
Last seen:2020-07-31 14:49:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:qy4gK3DUfdnpnFWwHqm7iYcpPNmU1rX3zE7za6FfKxGCTrWGs:qy4gK3DEc2iHP0UVX3z4zvSxGQWj
TLSH 32A4CF1CB5EA582AF04539BEDFF9819FCE96EC2F3282451B567434CB80797482AC0E75
Reporter @James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
51
Origin country :
US US
Mail intelligence
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
Gathering data
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Sigma detected: Suspicious Double Extension
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 dnsIp2 2 Behavior Graph ID: 255449 Sample: TT_Copy-23874-print........... Startdate: 01/08/2020 Architecture: WINDOWS Score: 100 30 g.msn.com 2->30 32 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->32 36 Found malware configuration 2->36 38 Sigma detected: Scheduled temp file as task from temp location 2->38 40 Yara detected AgentTesla 2->40 42 7 other signatures 2->42 8 TT_Copy-23874-print.............Pdf.exe 7 2->8         started        signatures3 process4 file5 22 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->22 dropped 24 C:\Users\user\AppData\Local\Temp\tmp8D2.tmp, XML 8->24 dropped 26 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->26 dropped 28 TT_Copy-23874-prin...........Pdf.exe.log, ASCII 8->28 dropped 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->46 48 Injects a PE file into a foreign processes 8->48 50 2 other signatures 8->50 12 TT_Copy-23874-print.............Pdf.exe 4 8->12         started        16 schtasks.exe 1 8->16         started        18 TT_Copy-23874-print.............Pdf.exe 8->18         started        signatures6 process7 dnsIp8 34 mail.privateemail.com 198.54.122.60, 49730, 587 NAMECHEAP-NETUS United States 12->34 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->52 54 Tries to steal Mail credentials (via file access) 12->54 56 Tries to harvest and steal ftp login credentials 12->56 58 2 other signatures 12->58 20 conhost.exe 16->20         started        signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-07-31 13:37:46 UTC
AV detection:
21 of 31 (67.74%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Threat name:
Kryptik
Score:
1.00

Yara Signatures


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.

  
Delivery method
Other

Comments