MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 049f8a4d392fbc7738ddc6f08a9d01931e3234e1f9241e37de668d47ea4d4503. 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 5 File information Comments

SHA256 hash: 049f8a4d392fbc7738ddc6f08a9d01931e3234e1f9241e37de668d47ea4d4503
SHA3-384 hash: 846bd81a0b01ecfae414af23f9974663133277daee98d92b36c55508240f875d58ded9b3e49181909f40e9d8b5119121
SHA1 hash: dc4d5cd4b9fce151422730e06842ff3296880008
MD5 hash: af6dc7aa2a9e2cb043201cc7f9842396
humanhash: maine-green-august-moon
File name:order confirmation 5648902.exe
Download: download sample
Signature AgentTesla
File size:40'448 bytes
First seen:2022-03-06 13:48:56 UTC
Last seen:2022-03-09 07:15:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 384:a54WCWnaJbYVGLQ6ulaiJMwCKTH2S3dd0hUADkaPrtsG:a5P4cSml7MwCKt3deVDZrtsG
Threatray 15'503 similar samples on MalwareBazaar
TLSH T12003F81A7892961DC9D47BF869B1919366367CE10124C18FECF97F2AAD33223CCC216D
File icon (PE):PE icon
dhash icon 174f4559191b1b13 (81 x AgentTesla, 68 x Formbook, 34 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
337
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 583902 Sample: order confirmation 5648902.exe Startdate: 06/03/2022 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->36 38 8 other signatures 2->38 6 order confirmation 5648902.exe 16 6 2->6         started        11 Ywlxh.exe 14 3 2->11         started        13 Ywlxh.exe 2 2->13         started        process3 dnsIp4 28 cdn.discordapp.com 162.159.129.233, 443, 49754, 49780 CLOUDFLARENETUS United States 6->28 22 C:\Users\user\AppData\Roaming\...\Ywlxh.exe, PE32 6->22 dropped 24 C:\Users\user\...\Ywlxh.exe:Zone.Identifier, ASCII 6->24 dropped 26 C:\...\order confirmation 5648902.exe.log, ASCII 6->26 dropped 40 Writes to foreign memory regions 6->40 42 Allocates memory in foreign processes 6->42 44 Injects a PE file into a foreign processes 6->44 15 MSBuild.exe 2 6->15         started        30 162.159.134.233, 443, 49764 CLOUDFLARENETUS United States 11->30 46 Multi AV Scanner detection for dropped file 11->46 48 Machine Learning detection for dropped file 11->48 18 MSBuild.exe 11->18         started        20 MSBuild.exe 13->20         started        file5 signatures6 process7 signatures8 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->50 52 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->52
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-06 10:04:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
049f8a4d392fbc7738ddc6f08a9d01931e3234e1f9241e37de668d47ea4d4503
MD5 hash:
af6dc7aa2a9e2cb043201cc7f9842396
SHA1 hash:
dc4d5cd4b9fce151422730e06842ff3296880008
Malware family:
AgentTesla.v3
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information


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

Malspam

AgentTesla

Executable exe 049f8a4d392fbc7738ddc6f08a9d01931e3234e1f9241e37de668d47ea4d4503

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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