MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5bb5dab4e306d78f20a799afa2b943d5a5a1e4b91252050a76208d22cde932e8. 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: 15


Intelligence 15 IOCs YARA 17 File information Comments

SHA256 hash: 5bb5dab4e306d78f20a799afa2b943d5a5a1e4b91252050a76208d22cde932e8
SHA3-384 hash: dc0b9c666ed3bcb6ecc95774fb4d593dabe2a4abc0bc00a644ac6e9a3e0537eb8f53baf19179b2bebbacce4768c3a8e5
SHA1 hash: b5192d012d297f1e939632053a231ec9b63b2c67
MD5 hash: 75ed7ada6d18a65d8bc94be6f96211c1
humanhash: eleven-eighteen-black-april
File name:5bb5dab4e306d78f20a799afa2b943d5a5a1e4b91252050a76208d22cde932e8
Download: download sample
Signature AgentTesla
File size:861'184 bytes
First seen:2024-05-09 11:01:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 12288:CfBa4VcKFZCKnOyAucLOvJ5+PrdLX2jzw0qUh5ZE2U38shqhSOS:C5msnNELhzp2j0KS2U38gl
Threatray 1'286 similar samples on MalwareBazaar
TLSH T10505B03D1CBE22BB81B8C6A9CFD58827F500E46B7151AD7594D747A56342E8B38C323E
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 :
1
# of downloads :
312
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
5bb5dab4e306d78f20a799afa2b943d5a5a1e4b91252050a76208d22cde932e8.exe
Verdict:
Malicious activity
Analysis date:
2024-05-09 11:04:04 UTC
Tags:
evasion smtp exfiltration stealer agenttesla

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

Behaviour
Searching for the window
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
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:
obfuscated packed
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
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
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 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 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: 1438874 Sample: TU5V4VyQl3.exe Startdate: 09/05/2024 Architecture: WINDOWS Score: 100 45 us2.smtp.mailhostbox.com 2->45 47 ip-api.com 2->47 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 67 12 other signatures 2->67 8 TU5V4VyQl3.exe 7 2->8         started        12 FnaENjVXOCyhBY.exe 5 2->12         started        14 svchost.exe 1 1 2->14         started        signatures3 process4 dnsIp5 41 C:\Users\user\AppData\...\FnaENjVXOCyhBY.exe, PE32 8->41 dropped 43 C:\Users\user\AppData\Local\...\tmp998A.tmp, XML 8->43 dropped 69 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->69 71 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->71 73 Uses schtasks.exe or at.exe to add and modify task schedules 8->73 81 3 other signatures 8->81 17 powershell.exe 23 8->17         started        20 powershell.exe 23 8->20         started        22 TU5V4VyQl3.exe 15 2 8->22         started        29 4 other processes 8->29 75 Antivirus detection for dropped file 12->75 77 Multi AV Scanner detection for dropped file 12->77 79 Machine Learning detection for dropped file 12->79 25 FnaENjVXOCyhBY.exe 12->25         started        27 schtasks.exe 12->27         started        53 127.0.0.1 unknown unknown 14->53 file6 signatures7 process8 dnsIp9 55 Loading BitLocker PowerShell Module 17->55 31 conhost.exe 17->31         started        33 WmiPrvSE.exe 17->33         started        35 conhost.exe 20->35         started        49 ip-api.com 208.95.112.1, 49699, 49704, 80 TUT-ASUS United States 22->49 51 us2.smtp.mailhostbox.com 208.91.199.225, 49702, 49706, 587 PUBLIC-DOMAIN-REGISTRYUS United States 22->51 57 Tries to steal Mail credentials (via file / registry access) 25->57 59 Tries to harvest and steal browser information (history, passwords, etc) 25->59 37 conhost.exe 27->37         started        39 conhost.exe 29->39         started        signatures10 process11
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2024-04-24 03:16:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
27 of 38 (71.05%)
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
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
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:
ea50e9730cb545d2b8c071e939dadccca665ff0b5f952ef1868ce3c4b33b96ad
MD5 hash:
0e35136348eda830ba289022f418110b
SHA1 hash:
f8e4a184918f1ee12978a7e67e07d48e68ceb328
SH256 hash:
1c633f39a192f108f755e0bcf412e8489ad80781f3b7807c80892deb2526ff0d
MD5 hash:
e4b5d57e9e46a4e76075b5b92f71577f
SHA1 hash:
d76dc165724148193c6911cc75fc62c198737d3a
SH256 hash:
33b0666eb85f4078439a98305df2362a38162ab21f1f548059fd17ea867c25ac
MD5 hash:
5e81f7201e0987f13a4caeab0e2b02e1
SHA1 hash:
d3143e426537b356e93615907695cc51d281f0eb
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:
0b8ce50168530bf0cb343b44f73db26252353b48843ad163b5c4d40f750b57d0
MD5 hash:
c1ec0dcd8de33cb2d41c7473e00a291a
SHA1 hash:
6c85c33563b9d3f4731b73ec9109b0832096739c
SH256 hash:
5bb5dab4e306d78f20a799afa2b943d5a5a1e4b91252050a76208d22cde932e8
MD5 hash:
75ed7ada6d18a65d8bc94be6f96211c1
SHA1 hash:
b5192d012d297f1e939632053a231ec9b63b2c67
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: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: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
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.

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