MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 409b216bb2d2747140b1a05b5cbc9fc8ff21bd1dbe6635a67d1d71a69a92da21. 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: 16


Intelligence 16 IOCs YARA 23 File information Comments

SHA256 hash: 409b216bb2d2747140b1a05b5cbc9fc8ff21bd1dbe6635a67d1d71a69a92da21
SHA3-384 hash: c671ab1e2aed359718d4822addc515222e6eb722c5d6b1c0f9c8146e84fb51c6774ff1007cee0d7c5665a08b7295fb9b
SHA1 hash: f6a6a343af6aaa323c8eb3d578a709d0c30a9819
MD5 hash: 7641b5e9a95918508f0acecc8739efc4
humanhash: white-rugby-double-fillet
File name:ZAPYTANIE OFERTY HANDLOWEJ 20241011.exe
Download: download sample
Signature AgentTesla
File size:1'021'960 bytes
First seen:2024-06-11 07:12:51 UTC
Last seen:2024-06-11 08:28:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:XAjH3DIlB5pwpW5EMg+F9/BG0d2ZtDeUmaXYC9XDoCqbl:wP4ipmg+F9/Bl27dYgXcl
TLSH T12C2523C1ABAD8D10CAB95B3DA09EF5B25BB8F4C21D26D38D9F8D1050D4D235288B635F
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter Anonymous
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
374
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
409b216bb2d2747140b1a05b5cbc9fc8ff21bd1dbe6635a67d1d71a69a92da21.exe
Verdict:
Malicious activity
Analysis date:
2024-06-11 07:14:27 UTC
Tags:
evasion smtp exfiltration stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
Banker Encryption Execution Generic Network Static Heur 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 an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Sending a custom TCP 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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay 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
AI detected suspicious sample
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)
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 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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1454981 Sample: ZAPYTANIE OFERTY HANDLOWEJ ... Startdate: 11/06/2024 Architecture: WINDOWS Score: 100 65 mail.estampar.com.br 2->65 67 ip-api.com 2->67 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 Sigma detected: Scheduled temp file as task from temp location 2->77 79 14 other signatures 2->79 8 ZAPYTANIE OFERTY HANDLOWEJ 20241011.exe 7 2->8         started        12 iHEckBaX.exe 5 2->12         started        14 OIjBUmm.exe 2->14         started        16 OIjBUmm.exe 2->16         started        signatures3 process4 file5 57 C:\Users\user\AppData\Roaming\iHEckBaX.exe, PE32 8->57 dropped 59 C:\Users\...\iHEckBaX.exe:Zone.Identifier, ASCII 8->59 dropped 61 C:\Users\user\AppData\Local\...\tmpC2ED.tmp, XML 8->61 dropped 63 ZAPYTANIE OFERTY H...EJ 20241011.exe.log, ASCII 8->63 dropped 93 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->93 95 Adds a directory exclusion to Windows Defender 8->95 18 ZAPYTANIE OFERTY HANDLOWEJ 20241011.exe 15 5 8->18         started        23 powershell.exe 23 8->23         started        35 2 other processes 8->35 97 Multi AV Scanner detection for dropped file 12->97 99 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->99 101 Machine Learning detection for dropped file 12->101 25 iHEckBaX.exe 12->25         started        27 schtasks.exe 12->27         started        29 OIjBUmm.exe 14->29         started        31 schtasks.exe 14->31         started        33 OIjBUmm.exe 16->33         started        37 3 other processes 16->37 signatures6 process7 dnsIp8 69 mail.estampar.com.br 50.116.87.109, 49738, 49741, 49743 UNIFIEDLAYER-AS-1US United States 18->69 71 ip-api.com 208.95.112.1, 49736, 49740, 49742 TUT-ASUS United States 18->71 53 C:\Users\user\AppData\Roaming\...\OIjBUmm.exe, PE32 18->53 dropped 55 C:\Users\user\...\OIjBUmm.exe:Zone.Identifier, ASCII 18->55 dropped 81 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->81 83 Tries to steal Mail credentials (via file / registry access) 18->83 85 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->85 87 Loading BitLocker PowerShell Module 23->87 39 conhost.exe 23->39         started        41 WmiPrvSE.exe 23->41         started        43 conhost.exe 27->43         started        45 conhost.exe 31->45         started        89 Tries to harvest and steal ftp login credentials 33->89 91 Tries to harvest and steal browser information (history, passwords, etc) 33->91 47 conhost.exe 35->47         started        49 conhost.exe 35->49         started        51 conhost.exe 37->51         started        file9 signatures10 process11
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-06-11 07:13:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 24 (87.50%)
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:
d67867ef93204c27c126a41fa778fcdbf89e34a3750014d8cc4a9394a1300d96
MD5 hash:
cfddc0c2c035e91ecc76782ff513e30a
SHA1 hash:
efd2f376cd2a3574240be6b03c563f42630a6ef7
SH256 hash:
1a1de9f3fe4c3a7ea7cd547cdd9d78b3873d6e243e544e5bb647452d6d9f6cfe
MD5 hash:
ceb52a5c98659e8905ea76737fe00c01
SHA1 hash:
bb7b30ff84d6aa26eaa0021c9fa3cd2c5a08e694
SH256 hash:
519bf8e49c7d08c0a8fd7437e57f6af7e48ac419fb42b796c243bd1f0b47190a
MD5 hash:
2b12744f3e7fa6b85d02dad4db05da58
SHA1 hash:
51f3d99900133630e464411c57bd3d0eea8165f6
SH256 hash:
1970968434ed60d2f10c0abfc3b678c702c1a5efb648dd8f3dde857fee988986
MD5 hash:
1d4383ca57dc31b0a1f8652dfec54115
SHA1 hash:
2c9cc67fdca35a5f3abcaf8ac2a2e0549e070f94
Detections:
AgentTesla win_cannon_auto 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:
409b216bb2d2747140b1a05b5cbc9fc8ff21bd1dbe6635a67d1d71a69a92da21
MD5 hash:
7641b5e9a95918508f0acecc8739efc4
SHA1 hash:
f6a6a343af6aaa323c8eb3d578a709d0c30a9819
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
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: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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla
Rule name:win_cannon_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


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

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