MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3990971d705514cd25bbc3c94b262bc7775928baf3472270b2fa43107ea3d01e. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments

SHA256 hash: 3990971d705514cd25bbc3c94b262bc7775928baf3472270b2fa43107ea3d01e
SHA3-384 hash: 3f6c766faa7f31fecbda327c501e162d8e678d87f69b4bdd3c99044ee04e8ab3c2366ed37c6997f9c7349f9de9f5315f
SHA1 hash: 2c173d28c94b66acc82e92b7ee42c851ea9f829b
MD5 hash: 2135fe28ce29c26ac1f9eb94a9dfbc7d
humanhash: three-beryllium-harry-arizona
File name:Payment Transfer.exe
Download: download sample
Signature AgentTesla
File size:882'688 bytes
First seen:2024-05-21 11:43:48 UTC
Last seen:2024-05-21 12:21:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:KH6GCIxDThB7X4yMm8vw7Du9zPuMMJcjujhVPC2Tt/NiOVWaSuCyIFqvlo:UCIx9BbcPvealP48Qrz5WKcIlo
Threatray 1'130 similar samples on MalwareBazaar
TLSH T17315E104A6BB9F45D7BC53B590214C2007B1A1AA613EE7AF5FD674FA2DA1FC08C95B03
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 adrian__luca
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
328
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
82bf133c2546e7e42b55a047094b6744.zip
Verdict:
Malicious activity
Analysis date:
2024-05-19 05:14:08 UTC
Tags:
spam evasion stealer agenttesla ftp exfiltration

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 Network Msil Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Sending a custom TCP request
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:
lokibot masquerade obfuscated 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, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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
Initial sample is a PE file and has a suspicious name
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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 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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1444956 Sample: Payment Transfer.exe Startdate: 21/05/2024 Architecture: WINDOWS Score: 100 30 ip-api.com 2->30 32 ftp.jeepcommerce.rs 2->32 38 Snort IDS alert for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 19 other signatures 2->44 8 Payment Transfer.exe 15 6 2->8         started        13 dzzbbxWYQweGV.exe 3 2->13         started        signatures3 process4 dnsIp5 34 ip-api.com 208.95.112.1, 49707, 80 TUT-ASUS United States 8->34 36 ftp.jeepcommerce.rs 195.252.110.253, 21, 49709, 49711 BEOTEL-AShttpwwwbeotelnetRS Serbia 8->36 26 C:\Users\user\AppData\...\dzzbbxWYQweGV.exe, PE32 8->26 dropped 28 C:\Users\user\AppData\Local\...\tmp4EF1.tmp, XML 8->28 dropped 46 Tries to steal Mail credentials (via file / registry access) 8->46 48 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->48 50 Tries to harvest and steal ftp login credentials 8->50 58 2 other signatures 8->58 15 powershell.exe 23 8->15         started        18 schtasks.exe 1 8->18         started        52 Antivirus detection for dropped file 13->52 54 Multi AV Scanner detection for dropped file 13->54 56 Machine Learning detection for dropped file 13->56 file6 signatures7 process8 signatures9 60 Loading BitLocker PowerShell Module 15->60 20 WmiPrvSE.exe 15->20         started        22 conhost.exe 15->22         started        24 conhost.exe 18->24         started        process10
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2024-05-16 00:34:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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:
c127cdcc22dfc8c225125db36d4d37637d7d309cbd60547ae8922b3d03bd33d8
MD5 hash:
a0ef1f72441be0add08f2af5fc0ea782
SHA1 hash:
b6d748e025bcf80de3410752c8aaac735c5063f6
SH256 hash:
f540e8d603962027b3a1f8b86d035281bfbdd3a05a621ead255825bc2082632a
MD5 hash:
d172f59251b97b415b621d302e1be2b7
SHA1 hash:
b1534e603749c901b5ac185f20e281f6be7fa908
SH256 hash:
975a454835e031a37b391a66f6fb5fd697ae369e501c6f2bce06af22a86dd2a2
MD5 hash:
fb7d3a274f7889af43e90cc2f6662d08
SHA1 hash:
68afefe7db5930e27e6f4fa9685f299bcab74277
SH256 hash:
522e9ed6a85b3e8dcb97e562e508ba50c9215bedbf020f540521762df9ba3bc8
MD5 hash:
4d304527ed3d3a9d9cee7c9ac6896d60
SHA1 hash:
4109ecca9e4793fb57ad729c9de40c2532dbd121
Detections:
win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 MALWARE_Win_AgentTeslaV2 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:
3990971d705514cd25bbc3c94b262bc7775928baf3472270b2fa43107ea3d01e
MD5 hash:
2135fe28ce29c26ac1f9eb94a9dfbc7d
SHA1 hash:
2c173d28c94b66acc82e92b7ee42c851ea9f829b
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 3990971d705514cd25bbc3c94b262bc7775928baf3472270b2fa43107ea3d01e

(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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