MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb. 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: 19


Intelligence 19 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb
SHA3-384 hash: 494a22c9130b695430293e6dc28aa40a6184bbd4cc70181821ee491d3b375db87b41ba7430785dafab180cbb9233f3ba
SHA1 hash: 3bbc4dcd644056c062dc4f3e9bdb0ac93dd372ab
MD5 hash: cb5a596f6ae023f22312ac155b442817
humanhash: east-helium-five-ten
File name:42.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'112'064 bytes
First seen:2024-07-03 07:36:46 UTC
Last seen:2024-07-03 08:20:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:5AHnh+eWsN3skA4RV1Hom2KXMmHa9Ts7q0U/mV3Uv/35:Ah+ZkldoPK8Ya9o7ruVZ
TLSH T1AE358C02739180E5FFAA91735B55B20156FD693531338D2F12982DB8BCFF1A12E2DE62
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon b464c4d0f0e8dcc4 (54 x AgentTesla, 8 x Formbook, 3 x Stealc)
Reporter mautshim
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
375
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb.exe
Verdict:
Malicious activity
Analysis date:
2024-07-03 07:38:01 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/f1781112-5299-42b4-a7d7-e7ec8e067951

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.AutoIt.1410.27650.98.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6685003f655cbfe6fd97f91cwin10vpnfull_triage
Tags:
Redcap
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Using the Windows Management Instrumentation requests
Reading critical registry keys
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed redcap shell32
Link:
https://www.filescan.io/uploads/6684ffa80bf5978c0b14779e/reports/32f69afb-6b69-43e5-b104-d089f5c306d5/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb
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/6e36fce8-1516-4b0a-8146-e67103889f93
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1466691
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Switches to a custom stack to bypass stack traces
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-07-03 06:00:05 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
15 of 24 (62.50%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=antf544os5j3vnfj6by37vx3kjbg7iknx2ovl4azw7hk3c6lvt5q._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 keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240703-jfs41stalb/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
AgentTesla
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/49615a44-830b-4366-b596-f17d0c9ffda1
Unpacked files
SH256 hash:
04547a7f48508fefd40b774e1e95b1b062047479a22cf5bb697d024fac8014c0
MD5 hash:
e3d11e0394e7a09845d191c93802daf2
SHA1 hash:
0d0c326898f453f6f74666715ae5453a0b605a69
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/53b6a554-3352-4d4e-a585-5496b1a80728/
Parent samples :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 hash:
03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb
MD5 hash:
cb5a596f6ae023f22312ac155b442817
SHA1 hash:
3bbc4dcd644056c062dc4f3e9bdb0ac93dd372ab
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/53b6a554-3352-4d4e-a585-5496b1a80728/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/03665ef38e97/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/03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb

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
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
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
Create hunting rule
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
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NETexecutableMicrosoft
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
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
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 03665ef38e9753bab4a9f071bfd6fb52426fa14dbe9d55f019b7cead8bcbacfb

(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
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

Comments