MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49700ee70d04597630dacefa2203c0f12f412ece9a93ffdb09ab18e5cce00524. 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: 49700ee70d04597630dacefa2203c0f12f412ece9a93ffdb09ab18e5cce00524
SHA3-384 hash: a7e60a9f39b8ffc61ea7bb7aaf43f362c353a56a20dd4ec51f0f52cd22147e9520205ecd7f892124f001273d4ea2efbd
SHA1 hash: 0d1400e85febc34131236e94aff353ff681be293
MD5 hash: dac1de5239180e2069ab67c8a8e7c44b
humanhash: winner-solar-oklahoma-gee
File name:NEW RFQ.exe
Download: download sample
Signature AgentTesla
File size:778'240 bytes
First seen:2020-07-31 12:08:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744
ssdeep 12288:eBWNGmTk5w1fgJNvJhH9Us0Rp4CF5Fip2NOke9yjdMlEZ/stz10+yNJc:6WQX5w1aluSG5FiQNqrK/sj0
TLSH 35F4D1447B90E54FC6AB8F7ACAD44810EEB8E8964A17E34B74C133AF1CCF36A9901575
Reporter @abuse_ch
Tags:AgentTesla exe


Twitter
@abuse_ch
Malspam distributing AgentTesla:

HELO: vps.confidencegroup.co
Sending IP: 162.144.54.78
From: Judy Lee <hk@jiballoubnan.com>
Subject: NEW RFQ
Attachment: NEW RFQ.zip (contains "NEW RFQ.exe")

AgentTesla SMTP exfil server:
mail.flsrnidth.com:587

Intelligence


File Origin
# of uploads :
1
# of downloads :
37
Origin country :
US US
Mail intelligence
Geo location:
Global
Volume:
Low
Vendor Threat Intelligence
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
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: 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 dnsIp2 2 Behavior Graph ID: 255359 Sample: NEW RFQ.exe Startdate: 31/07/2020 Architecture: WINDOWS Score: 100 49 g.msn.com 2->49 51 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->51 65 Found malware configuration 2->65 67 Sigma detected: Scheduled temp file as task from temp location 2->67 69 Yara detected AgentTesla 2->69 71 7 other signatures 2->71 8 NEW RFQ.exe 5 2->8         started        12 YYtJku.exe 1 2->12         started        14 YYtJku.exe 2->14         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->33 dropped 35 C:\Users\user\AppData\Local\...\tmp89DC.tmp, XML 8->35 dropped 37 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->37 dropped 39 C:\Users\user\AppData\...39EW RFQ.exe.log, ASCII 8->39 dropped 73 Injects a PE file into a foreign processes 8->73 16 NEW RFQ.exe 2 5 8->16         started        21 schtasks.exe 1 8->21         started        75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->75 77 Machine Learning detection for dropped file 12->77 79 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->79 23 YYtJku.exe 2 12->23         started        25 YYtJku.exe 14->25         started        signatures6 process7 dnsIp8 41 flsrnidth.com 167.114.220.88, 49741, 49745, 587 OVHFR Canada 16->41 43 mail.flsrnidth.com 16->43 45 192.168.2.1 unknown unknown 16->45 29 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 16->29 dropped 31 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 16->31 dropped 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->53 55 Moves itself to temp directory 16->55 57 Tries to steal Mail credentials (via file access) 16->57 27 conhost.exe 21->27         started        47 mail.flsrnidth.com 23->47 59 Tries to harvest and steal ftp login credentials 23->59 61 Tries to harvest and steal browser information (history, passwords, etc) 23->61 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->63 file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-07-31 12:10:12 UTC
AV detection:
25 of 30 (83.33%)
Threat level
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Threat name:
Suspicious File
Score:
0.61

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.

Malspam

AgentTesla

Executable exe 49700ee70d04597630dacefa2203c0f12f412ece9a93ffdb09ab18e5cce00524

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments