MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6493d3a36512c2e8dc785d618a266f9de4fbbe23c39fb0be1829a7d622ac2a9c. 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: 17


Intelligence 17 IOCs YARA 17 File information Comments

SHA256 hash: 6493d3a36512c2e8dc785d618a266f9de4fbbe23c39fb0be1829a7d622ac2a9c
SHA3-384 hash: 6fdc3b6a50892b5958f1462a2b03c19d5a01524eefe1d366d640f00b1c5b8ebd22844500bc0d8402b625d5efe6d57430
SHA1 hash: 75c671804ad8f9b33b3ea6d94c33e9122e1c72ea
MD5 hash: 6492cc1f3398a59081f40d70eed2f50a
humanhash: ten-single-spaghetti-leopard
File name:proforma Invoice Sheet.exe
Download: download sample
Signature AgentTesla
File size:632'832 bytes
First seen:2024-01-25 07:44:43 UTC
Last seen:2024-01-25 08:12:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:ogU3Ymin+bjhuXvN+Y0zLQR0I2emxqtrnBonGbWgjbXXXmc:1Jjn+bjcXvN+/PS0CDBSgHXXXmc
Threatray 4'975 similar samples on MalwareBazaar
TLSH T169D4237EDB11FB26CABCA73C6400D18A52709387C084D7CDDFA1957EC7AA7BA4503A52
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
321
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
6493d3a36512c2e8dc785d618a266f9de4fbbe23c39fb0be1829a7d622ac2a9c.exe
Verdict:
Malicious activity
Analysis date:
2024-01-25 07:46:26 UTC
Tags:
evasion stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
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.
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 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 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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1380914 Sample: proforma_Invoice_Sheet.exe Startdate: 25/01/2024 Architecture: WINDOWS Score: 100 53 mail.coperwire.com 2->53 55 ip-api.com 2->55 57 3 other IPs or domains 2->57 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 Antivirus / Scanner detection for submitted sample 2->69 71 10 other signatures 2->71 8 proforma_Invoice_Sheet.exe 7 2->8         started        12 YdNAYkDjzU.exe 5 2->12         started        14 VLYdwNT.exe 2->14         started        16 VLYdwNT.exe 2->16         started        signatures3 process4 file5 49 C:\Users\user\AppData\...\YdNAYkDjzU.exe, PE32 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmp8A70.tmp, XML 8->51 dropped 85 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->85 87 Uses schtasks.exe or at.exe to add and modify task schedules 8->87 89 Writes to foreign memory regions 8->89 97 3 other signatures 8->97 18 RegSvcs.exe 16 4 8->18         started        23 RegSvcs.exe 8->23         started        25 powershell.exe 23 8->25         started        35 2 other processes 8->35 91 Antivirus detection for dropped file 12->91 93 Multi AV Scanner detection for dropped file 12->93 95 Machine Learning detection for dropped file 12->95 27 RegSvcs.exe 12->27         started        29 schtasks.exe 12->29         started        31 conhost.exe 14->31         started        33 conhost.exe 16->33         started        signatures6 process7 dnsIp8 59 api4.ipify.org 104.237.62.211, 443, 49704, 49707 WEBNXUS United States 18->59 61 ip-api.com 208.95.112.1, 49705, 49708, 80 TUT-ASUS United States 18->61 63 coperwire.com 149.56.180.35, 49706, 49709, 587 OVHFR Canada 18->63 47 C:\Users\user\AppData\Roaming\...\VLYdwNT.exe, PE32 18->47 dropped 73 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->73 75 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 23->75 77 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 23->77 37 conhost.exe 25->37         started        39 WmiPrvSE.exe 25->39         started        79 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->79 81 Tries to steal Mail credentials (via file / registry access) 27->81 83 Tries to harvest and steal browser information (history, passwords, etc) 27->83 41 conhost.exe 29->41         started        43 conhost.exe 35->43         started        45 conhost.exe 35->45         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-01-25 08:07:50 UTC
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
AgentTesla
Unpacked files
SH256 hash:
4ada9d8c371e960de1103fb6161a6bfa791cd637d52e57d25803149d0951281f
MD5 hash:
20c5f8cafb2f670dc7cd97745251c661
SHA1 hash:
cbcdc9c4fe036404144d88fa0b27780297c7f20d
Detections:
AgentTesla win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
292a0518841e86949acf831703623779d63591cc95ebc4030d00da3b72066c77
MD5 hash:
4d697347eedf1d51cc5fcf7a066621f1
SHA1 hash:
bb9398d6d9f9ff3c74aadee7cdac6e04fab4770d
SH256 hash:
bc5434337d02f27e45c3804279c28c38a0d5638e4567c291780d0e62dadd5659
MD5 hash:
71f183b862ddd2525514a565bf75b81c
SHA1 hash:
5e31d4efb37e927b530c335f08a5ab3eaf5830b0
SH256 hash:
c85bc328773aba91c794d88be8ac5ccd57dddbea157f6c128bb5a3b193e0319f
MD5 hash:
8b926a9877401238b870a1a2745b39a2
SHA1 hash:
50ab6730fee83524fe4e03f077229a32eeb07691
SH256 hash:
6493d3a36512c2e8dc785d618a266f9de4fbbe23c39fb0be1829a7d622ac2a9c
MD5 hash:
6492cc1f3398a59081f40d70eed2f50a
SHA1 hash:
75c671804ad8f9b33b3ea6d94c33e9122e1c72ea
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Author:Elastic Security

File information


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

Malspam

AgentTesla

Executable exe 6493d3a36512c2e8dc785d618a266f9de4fbbe23c39fb0be1829a7d622ac2a9c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments