MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bd3fb697e619a94df9375745be7899c99ea3c31cd05b16ad7317e796de8b9d1e. 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: bd3fb697e619a94df9375745be7899c99ea3c31cd05b16ad7317e796de8b9d1e
SHA3-384 hash: dbc3acfc0bb4510764292e5cc27f2b73cf2e19001c913fe382a4118db92cdf425e2995d5fa60f9e18913466673855595
SHA1 hash: 0e1d23cd4bc3f0276a458d1bc2d1fc7ecf233379
MD5 hash: 116798ef58dcfdadefef387fbf8a5447
humanhash: red-florida-spring-seventeen
File name:SrL5JnnmhN26cMXx.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:595'968 bytes
First seen:2020-08-19 13:04:12 UTC
Last seen:2020-08-19 13:45:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:+ZfxVPbCLFVpM0bU8s4LToKt0MpyjD1HJhUrRq9szmf1QLx:+JxZbgHBbU8sCjt0MpYxHJhB9szY1Q
Threatray 9'429 similar samples on MalwareBazaar
TLSH 41C4F1A750A52364C47CB4FB811109D34BB79C2A9306F66601F876FA15BE663CE3633E
Reporter abuse_ch
Tags:AgentTesla ESP exe geo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: fimaksplastik.com
Sending IP: 185.222.57.209
From: NAFTEX<export@fimaksplastik.com>
Subject: Fwd: Pago del saldo de PO3153485
Attachment: SrL5JnnmhN26cMXx.z (contains "SrL5JnnmhN26cMXx.exe")

AgentTesla SMTP exfil server:
srvc13.turhost.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/48537/
Detection(s):
SecuriteInfo.com.Trojan.Inject3.51985.932.4958.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
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
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/438091
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: 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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 271528 Sample: SrL5JnnmhN26cMXx.exe Startdate: 20/08/2020 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 Yara detected AgentTesla 2->33 35 5 other signatures 2->35 7 SrL5JnnmhN26cMXx.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\RTwhUb.exe, PE32 7->19 dropped 21 C:\Users\user\...\RTwhUb.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp36C3.tmp, XML 7->23 dropped 25 C:\Users\user\...\SrL5JnnmhN26cMXx.exe.log, ASCII 7->25 dropped 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->39 41 Injects a PE file into a foreign processes 7->41 43 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->43 11 SrL5JnnmhN26cMXx.exe 4 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 srvc13.turhost.com 37.230.106.16, 49717, 587 AEROTEK-ASTR Turkey 11->27 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bd3fb697e619a94df9375745be7899c99ea3c31cd05b16ad7317e796de8b9d1e/
Threat name:
ByteCode-MSIL.Ransomware.TeslaCrypt
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 03:08:17 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xu73nf7gdguu36jxk5c346ezzgpkhqy42bnrnlltc7tznxultupa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'419 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200819-eaay7stl9x/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
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/bd3fb697e619a94df9375745be7899c99ea3c31cd05b16ad7317e796de8b9d1e

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 e775cdbfcd717c640bec374bb153af834ee710e617085a2ac41ac16e5d48a11c

AgentTesla

Executable exe bd3fb697e619a94df9375745be7899c99ea3c31cd05b16ad7317e796de8b9d1e

(this sample)

  
Dropped by
MD5 e867e3def147b0ca075519cd45dcdd1b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48537/
  
Dropped by
SHA256 e775cdbfcd717c640bec374bb153af834ee710e617085a2ac41ac16e5d48a11c

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