MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66f51ee1deb34f149491e55735e671876e22fe37f749fdfa30238041a35bafc6. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 66f51ee1deb34f149491e55735e671876e22fe37f749fdfa30238041a35bafc6
SHA3-384 hash: e2c834df67356f55902599932027cef70445e0e3a542276372bb5a08b2df1bd225a4ae610bb6e590e687d681d7d91726
SHA1 hash: a5a24c8aeef29107cb3a72acbe45d77274ee3cf9
MD5 hash: c418187a5268d408094b89aa79e3a5a2
humanhash: harry-montana-eighteen-fifteen
File name:z17invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:688'128 bytes
First seen:2024-09-04 10:59:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:vvBKYvI8cu/ZRrJt6cGMJIfAXL2RR3IKE0M8wkFoJJprYuBC5o:3OqLrJt3lJbC/3IKUOoJJpfg5
TLSH T1B9E402682A4AE503C65147794FB2F2B9263C5DEDB811D3639FEDAEEFF926C044D04281
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter FXOLabs
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
386
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
z17invoice.exe
Verdict:
Malicious activity
Analysis date:
2024-09-04 11:03:05 UTC
Tags:
stealer evasion smtp exfiltration agenttesla
Link:
https://app.any.run/tasks/e0331f49-62b1-4c65-978f-67cbd1f78088

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.74000734.19126.28219.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d83dbb8e12b8124ac931a6
Tags:
Execution Generic Infostealer Static Stealth Gensteal
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/66d83db75c586f64e5f56ba1/reports/a595794d-9464-40d1-b3e4-7ec1b2b3d6b0/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/66f51ee1deb34f149491e55735e671876e22fe37f749fdfa30238041a35bafc6
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b88a453c-3532-4104-9538-02b062554695
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1504031
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
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
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)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1504031 Sample: z17invoice.exe Startdate: 04/09/2024 Architecture: WINDOWS Score: 100 43 us2.smtp.mailhostbox.com 2->43 45 api.ipify.org 2->45 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 9 other signatures 2->65 8 z17invoice.exe 4 2->8         started        12 mpTrle.exe 3 2->12         started        14 mpTrle.exe 2->14         started        signatures3 process4 file5 37 C:\Users\user\AppData\...\z17invoice.exe.log, ASCII 8->37 dropped 67 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->67 69 Adds a directory exclusion to Windows Defender 8->69 16 z17invoice.exe 16 5 8->16         started        21 powershell.exe 23 8->21         started        71 Multi AV Scanner detection for dropped file 12->71 73 Machine Learning detection for dropped file 12->73 75 Injects a PE file into a foreign processes 12->75 23 mpTrle.exe 14 2 12->23         started        25 mpTrle.exe 14->25         started        27 mpTrle.exe 14->27         started        signatures6 process7 dnsIp8 39 us2.smtp.mailhostbox.com 208.91.198.143, 49708, 49712, 49721 PUBLIC-DOMAIN-REGISTRYUS United States 16->39 41 api.ipify.org 172.67.74.152, 443, 49706, 49711 CLOUDFLARENETUS United States 16->41 33 C:\Users\user\AppData\Roaming\...\mpTrle.exe, PE32 16->33 dropped 35 C:\Users\user\...\mpTrle.exe:Zone.Identifier, ASCII 16->35 dropped 47 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->47 49 Tries to steal Mail credentials (via file / registry access) 16->49 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->51 53 Loading BitLocker PowerShell Module 21->53 29 conhost.exe 21->29         started        31 WmiPrvSE.exe 21->31         started        55 Tries to harvest and steal ftp login credentials 25->55 57 Tries to harvest and steal browser information (history, passwords, etc) 25->57 file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/66f51ee1deb34f149491e55735e671876e22fe37f749fdfa30238041a35bafc6
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/66f51ee1deb34f149491e55735e671876e22fe37f749fdfa30238041a35bafc6/
Threat name:
ByteCode-MSIL.Trojan.AgentTeslaFEM
Create hunting rule
Status:
Malicious
First seen:
2024-09-02 13:44:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m32r5yo6wnhrjfer4vltlztrq5xcf7rx65e736rqeoaedi23v7da._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla credential_access discovery execution keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240904-m3z3mazena/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
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
Credentials from Password Stores: Credentials from Web Browsers
AgentTesla
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/34e5735d-c386-47c8-aa3a-a4c2a9898ad7
Unpacked files
SH256 hash:
9f365a320405be969719491d46191fefa4e6a731684ed9fb6bcaa72bc6c1126e
MD5 hash:
63e615e39e78c95da103a5917a1be5e1
SHA1 hash:
e254316bc7025b7ce4e7f87148940588eab3d0a9
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/2ba54750-02d0-4f0e-a298-cb602b2f05b0/
Parent samples :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 hash:
8f3e8fb00b864b774ba1ff591b4d2f29d04cf4fea45e179f39309b984a92093c
MD5 hash:
d0223abc16917fd6ab9a529f597cc431
SHA1 hash:
6de268dcad66b83e126c39b7cb8aaec020d64dcb
Link:
https://www.unpac.me/results/2ba54750-02d0-4f0e-a298-cb602b2f05b0/
SH256 hash:
16986265d9be0b0822ce882a3450e519286d98afd681fa3cfd56acb292d64a8a
MD5 hash:
843903ae56f29887b6a27822173e6e77
SHA1 hash:
1bc2bfd41d460665b21f7956b567578248c7522a
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/2ba54750-02d0-4f0e-a298-cb602b2f05b0/
SH256 hash:
66f51ee1deb34f149491e55735e671876e22fe37f749fdfa30238041a35bafc6
MD5 hash:
c418187a5268d408094b89aa79e3a5a2
SHA1 hash:
a5a24c8aeef29107cb3a72acbe45d77274ee3cf9
Link:
https://www.unpac.me/results/2ba54750-02d0-4f0e-a298-cb602b2f05b0/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/66f51ee1deb3/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/66f51ee1deb34f149491e55735e671876e22fe37f749fdfa30238041a35bafc6

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:NET
Create hunting rule
Author:malware-lu
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.

Malspam

AgentTesla

Executable exe 66f51ee1deb34f149491e55735e671876e22fe37f749fdfa30238041a35bafc6

(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

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