MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4d9f1c7f9c27fcff496f443ecc5e1c3c1547a7394b73c974417b380e0a86cff. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4d9f1c7f9c27fcff496f443ecc5e1c3c1547a7394b73c974417b380e0a86cff
SHA3-384 hash: 7a36ddd390ab3e0a6304d3abc8d9e08a828db8696d41ea9751983ddd0318c39534cdfa670f439ad1b4a6e1d9c537a782
SHA1 hash: b17815b24fb603f6b933e3cb200281f8c3eaba2d
MD5 hash: e6d4d499cac6b451e48172eb4ac016af
humanhash: spaghetti-thirteen-berlin-robin
File name:e6d4d499cac6b451e48172eb4ac016af
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'093'120 bytes
First seen:2021-12-09 14:01:36 UTC
Last seen:2021-12-09 16:42:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:Uaoa9mmoehK/HavXNkSisHl07G8pCAZRss:UqoehK/HavrHlw1hCs
TLSH T1C935237C769396CEE49A82B6375A906862BA7D36414BC19CF89E324F5C377483133B03
Reporter zbetcheckin
Tags:32 AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e6d4d499cac6b451e48172eb4ac016af
Verdict:
Malicious activity
Analysis date:
2021-12-09 14:24:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/77bac17c-b598-4617-a10d-a10f4aec3121

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/212883/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.26502.19429.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
Searching for the window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b20c5bfa72c81b5b138f1e/reports/1a247924-18e1-4421-8f21-1471b91e473a/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c3757107-68a8-49ff-9986-6664739a44be
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/904711
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Found malware configuration
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)
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 537194 Sample: TLdjAscB9t Startdate: 09/12/2021 Architecture: WINDOWS Score: 100 32 us2.smtp.mailhostbox.com 2->32 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Multi AV Scanner detection for dropped file 2->40 42 10 other signatures 2->42 8 TLdjAscB9t.exe 7 2->8         started        signatures3 process4 file5 24 C:\Users\user\AppData\Roaming\ePrEsIWuL.exe, PE32 8->24 dropped 26 C:\Users\...\ePrEsIWuL.exe:Zone.Identifier, ASCII 8->26 dropped 28 C:\Users\user\AppData\Local\...\tmp6F14.tmp, XML 8->28 dropped 30 C:\Users\user\AppData\...\TLdjAscB9t.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 Uses schtasks.exe or at.exe to add and modify task schedules 8->48 50 Adds a directory exclusion to Windows Defender 8->50 12 TLdjAscB9t.exe 2 8->12         started        16 powershell.exe 25 8->16         started        18 schtasks.exe 1 8->18         started        signatures6 process7 dnsIp8 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 / registry access) 12->54 56 Tries to harvest and steal ftp login credentials 12->56 58 Tries to harvest and steal browser information (history, passwords, etc) 12->58 20 conhost.exe 16->20         started        22 conhost.exe 18->22         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4d9f1c7f9c27fcff496f443ecc5e1c3c1547a7394b73c974417b380e0a86cff/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-08 12:05:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/211209-rb57sadedq/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
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
Unpacked files
SH256 hash:
3760029a8aaafcd93f03372a54f4e2b1c859e953d2465a2cbca8304dcf85f56b
MD5 hash:
3c039f460bd5db928afc4eadf49284c7
SHA1 hash:
345bca320e5fe5926846a633232c7cf6532486d5
Link:
https://www.unpac.me/results/d0927c80-be6e-443a-a527-46e85e440b19/
SH256 hash:
80855df0d7e7629d1f16cfecb7270f7db3ae6c1e32973803330862e531e69a53
MD5 hash:
2ee37952c40f8681eb58af6196d117da
SHA1 hash:
10f1c59089e1485b1440a47fbde89172dd000a29
Link:
https://www.unpac.me/results/d0927c80-be6e-443a-a527-46e85e440b19/
SH256 hash:
cb2c0e9d2ef0ec81397971e679111774057dbc4476b6c938f56a6cba450598bf
MD5 hash:
4c3ceece68dd648adb33add5287a7df3
SHA1 hash:
05f5f0f98ee6dec62bae6afbf8b0f21de97b2243
Link:
https://www.unpac.me/results/d0927c80-be6e-443a-a527-46e85e440b19/
SH256 hash:
b4d9f1c7f9c27fcff496f443ecc5e1c3c1547a7394b73c974417b380e0a86cff
MD5 hash:
e6d4d499cac6b451e48172eb4ac016af
SHA1 hash:
b17815b24fb603f6b933e3cb200281f8c3eaba2d
Link:
https://www.unpac.me/results/d0927c80-be6e-443a-a527-46e85e440b19/
Malware family:
Agent Tesla v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b4d9f1c7f9c2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b4d9f1c7f9c27fcff496f443ecc5e1c3c1547a7394b73c974417b380e0a86cff

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AgentTesla

Executable exe b4d9f1c7f9c27fcff496f443ecc5e1c3c1547a7394b73c974417b380e0a86cff

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1869006/
Cape
Cape
https://www.capesandbox.com/analysis/212883/

Comments


Avatar
zbet commented on 2021-12-09 14:01:37 UTC

url : hxxp://173.232.204.89/trk.exe