MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c523252072f5911950614d6a91d16036b0128c10458f05a4ab0b7a3221780c1a. 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: c523252072f5911950614d6a91d16036b0128c10458f05a4ab0b7a3221780c1a
SHA3-384 hash: 4871a70b3650ea53ea6e92eb569ba3e3e0a5827a2db7acc68c8674de352574ce281efe1ac1cb0b046e966b7e5813cceb
SHA1 hash: 8d8456d63d6d60521f05f1993d28056d8ce18d06
MD5 hash: 2d9231b4a67a5c9698e905e6f204a03d
humanhash: vermont-ack-golf-oregon
File name:G9282607304.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:723'968 bytes
First seen:2020-08-03 15:04:24 UTC
Last seen:2020-08-03 16:03:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:ariAkR/ifN/ht8xsCmr6hjg53LMx/5Vu6Icx:dAui/r8XrhjC3C/5V
Threatray 1'691 similar samples on MalwareBazaar
TLSH A0F4CF6C7BE0852AF55A1FBE9D3655439D35E80BAD27F38F29F1112C087A39C6841F22
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ccat.com.hk
Sending IP: 103.99.1.145
From: Kamal>kamal@ccat.com.hk
Subject: Re:remittance advice
Attachment: G9282607304.rar (contains "G9282607304.exe")

AgentTesla SMTP exfil server:
srv31.niagahoster.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/37998/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.34278699.30337.9547.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408175
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
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: 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 signatures2 2 Behavior Graph ID: 256326 Sample: G9282607304.exe Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Sigma detected: Capture Wi-Fi password 2->38 40 Sigma detected: Scheduled temp file as task from temp location 2->40 42 8 other signatures 2->42 8 G9282607304.exe 7 2->8         started        process3 file4 24 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->24 dropped 26 C:\Users\user\AppData\Local\...\tmp4A4A.tmp, XML 8->26 dropped 28 C:\...\&startupname&.exe:Zone.Identifier, ASCII 8->28 dropped 30 C:\Users\user\AppData\...behaviorgraph9282607304.exe.log, ASCII 8->30 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 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->50 12 G9282607304.exe 4 8->12         started        16 schtasks.exe 1 8->16         started        signatures5 process6 dnsIp7 32 srv31.niagahoster.com 153.92.8.106, 49733, 587 AS-HOSTINGERLT Germany 12->32 34 192.168.2.1 unknown unknown 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 18 netsh.exe 3 12->18         started        20 conhost.exe 16->20         started        signatures8 process9 process10 22 conhost.exe 18->22         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c523252072f5911950614d6a91d16036b0128c10458f05a4ab0b7a3221780c1a/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 13:12:28 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yurskids6wirsudbjvvjdulag2ybfdaqiwhqljflbn5deilybqna._file
Verdict:
malicious
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ab13f3cf7de54784a1fe4cb2957e019ce6c9564c63eb11f42b4ee80762e51179
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ef47e6b46e818e6f3110202391cca1ba74b312d9e2d11dd66e62b59c60b49cda
AgentTesla
+ 1'681 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware persistence trojan family:agenttesla
Link:
https://tria.ge/reports/200803-6sjnvlvrwe/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of SetThreadContext
Modifies service
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
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c523252072f5911950614d6a91d16036b0128c10458f05a4ab0b7a3221780c1a

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

rar bc5a75ae85cebb28c039cf77c4d1a158c4dc6df00e497f2185b49b6e952bb802

AgentTesla

Executable exe c523252072f5911950614d6a91d16036b0128c10458f05a4ab0b7a3221780c1a

(this sample)

  
Dropped by
MD5 557e12423c08962b0ae3620959f57cc0
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/37998/
  
Dropped by
SHA256 bc5a75ae85cebb28c039cf77c4d1a158c4dc6df00e497f2185b49b6e952bb802

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