MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18d8fabcecc50459f3741191faef3af84d21f86b293fa2e5505d73f9ab386b1d. 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: 20


Intelligence 20 IOCs YARA 18 File information Comments

SHA256 hash: 18d8fabcecc50459f3741191faef3af84d21f86b293fa2e5505d73f9ab386b1d
SHA3-384 hash: ae3511d2169722a2a133ca8f7c03860b3be5ca24bfad65f0d982e14c5b1bc1f480c5b1cc0011e70247f086a95e7eb702
SHA1 hash: 00211793f336e34b9dd6d67d7228188cca60ab05
MD5 hash: 332bb23ec41eddef4aada9a6a17e394c
humanhash: west-spaghetti-pennsylvania-illinois
File name:z1PO23897OrderRequest.pdf..exe
Download: download sample
Signature AgentTesla
File size:712'704 bytes
First seen:2024-05-30 13:49:33 UTC
Last seen:2024-05-31 13:36:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:HbhDhagHCN1ehxtGgfUCkoZ9CFcxH17dIElmlzv7WjnQdMpuFIn2ANcS6wh:7hDhagq1mGgeoCW3ZmlmQquFw2ANr6wh
Threatray 2'029 similar samples on MalwareBazaar
TLSH T1BBE412493B3C2E67E879C2FD05A965C603F1A66B7625D3C80CC971EB99E1B205B01F63
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 0030717171717800 (6 x AgentTesla, 3 x Formbook, 1 x RedLineStealer)
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
379
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
18d8fabcecc50459f3741191faef3af84d21f86b293fa2e5505d73f9ab386b1d.exe
Verdict:
Malicious activity
Analysis date:
2024-05-30 13:49:57 UTC
Tags:
evasion agenttesla stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
Banker Encryption Execution Network Msil Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Sending an HTTP GET request
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
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.
Malware family:
Malicious Packer
Verdict:
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Loading BitLocker PowerShell Module
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1449615 Sample: z1PO23897OrderRequest.pdf..exe Startdate: 30/05/2024 Architecture: WINDOWS Score: 100 61 zeus.elastic.mediahost.gr 2->61 63 mail.zeus.elastic.mediahost.gr 2->63 65 api.ipify.org 2->65 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 Antivirus / Scanner detection for submitted sample 2->75 77 10 other signatures 2->77 8 z1PO23897OrderRequest.pdf..exe 7 2->8         started        12 ETfRaPWYldJQ.exe 5 2->12         started        14 dpjkI.exe 2->14         started        16 dpjkI.exe 2->16         started        signatures3 process4 file5 57 C:\Users\user\AppData\...TfRaPWYldJQ.exe, PE32 8->57 dropped 59 C:\Users\user\AppData\Local\...\tmpDF79.tmp, XML 8->59 dropped 93 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->93 95 Uses schtasks.exe or at.exe to add and modify task schedules 8->95 97 Adds a directory exclusion to Windows Defender 8->97 18 z1PO23897OrderRequest.pdf..exe 15 5 8->18         started        23 powershell.exe 23 8->23         started        37 2 other processes 8->37 99 Antivirus detection for dropped file 12->99 101 Multi AV Scanner detection for dropped file 12->101 103 Machine Learning detection for dropped file 12->103 25 ETfRaPWYldJQ.exe 12->25         started        27 schtasks.exe 12->27         started        105 Injects a PE file into a foreign processes 14->105 29 dpjkI.exe 14->29         started        31 schtasks.exe 14->31         started        33 dpjkI.exe 16->33         started        35 schtasks.exe 16->35         started        signatures6 process7 dnsIp8 67 zeus.elastic.mediahost.gr 95.217.204.224, 49735, 49739, 49747 HETZNER-ASDE Germany 18->67 69 api.ipify.org 104.26.13.205, 443, 49734, 49737 CLOUDFLARENETUS United States 18->69 53 C:\Users\user\AppData\Roaming\...\dpjkI.exe, PE32 18->53 dropped 55 C:\Users\user\...\dpjkI.exe:Zone.Identifier, ASCII 18->55 dropped 79 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->79 81 Tries to steal Mail credentials (via file / registry access) 18->81 83 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->83 85 Loading BitLocker PowerShell Module 23->85 39 conhost.exe 23->39         started        41 WmiPrvSE.exe 23->41         started        43 conhost.exe 27->43         started        45 conhost.exe 31->45         started        87 Tries to harvest and steal ftp login credentials 33->87 89 Tries to harvest and steal browser information (history, passwords, etc) 33->89 47 conhost.exe 35->47         started        91 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 37->91 49 conhost.exe 37->49         started        51 conhost.exe 37->51         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Status:
Malicious
First seen:
2024-05-30 13:44:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla execution keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
AgentTesla
Unpacked files
SH256 hash:
aae920669816646b4e0ac4a604482bd7803cad33aa31eb39b0e5661900b97df9
MD5 hash:
6ee07543aa79d4a0387c5167aab308dd
SHA1 hash:
c2af6c73d3bbe9232a18143c93f69a23ac07b068
SH256 hash:
c151dbb295a02725863e03f6d1f3f917ebb54e302a47594aa013c41d76dea0e7
MD5 hash:
4e469df2e15523244f16e145a2175f0a
SHA1 hash:
9d304e48262b761b903f35837f6944210d1f9c65
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_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
74a36da16dbe32858de5db98151915cc371c27eb11bfafa965d469562f3f2d6f
MD5 hash:
695046f220852ee75fd94c50be2aa866
SHA1 hash:
7c1a432bf9392077bf25800ee8456be6520d2b2d
SH256 hash:
25b5214317428b6661d063585c9de0ceb173e0cbf529069873599ac09f179ae9
MD5 hash:
a09ba49a164d02715cea9498b85dadb3
SHA1 hash:
5cb0c737d9fb738c36ca64082b53cd2d816b6e8b
SH256 hash:
18d8fabcecc50459f3741191faef3af84d21f86b293fa2e5505d73f9ab386b1d
MD5 hash:
332bb23ec41eddef4aada9a6a17e394c
SHA1 hash:
00211793f336e34b9dd6d67d7228188cca60ab05
Malware family:
AgentTesla
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
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_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_Generic_Threat_9f4a80b2
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information


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

Malspam

AgentTesla

Executable exe 18d8fabcecc50459f3741191faef3af84d21f86b293fa2e5505d73f9ab386b1d

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments