MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a1b06e809dd5c48be6fe00d20a2117197159a21cc8cb5840fe64cd8b31661bd. 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 9 File information Comments
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SHA256 hash: 4a1b06e809dd5c48be6fe00d20a2117197159a21cc8cb5840fe64cd8b31661bd
SHA3-384 hash: 77b39f5fc240f49abab67587d7997ba0f3351080f8b2c8c74709dede84b3383a031ac22dbca69c9f70f587821a50b379
SHA1 hash: a1e8794a74797b2df257957107d7c36a73e1c52e
MD5 hash: c18297b5b53a4847e696422d83d408d7
humanhash: magazine-thirteen-fix-alpha
File name:Datasheet.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'257'984 bytes
First seen:2025-03-28 02:07:58 UTC
Last seen:2025-04-08 09:01:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:Ju6J33O0c+JY5UZ+XC0kGso6Fax4H444tjQ8nYz3Jsnzvd2WY:ru0c++OCvkGs9Fax4H444tjQ8nuJsbY
Threatray 1 similar samples on MalwareBazaar
TLSH T1C145CF2277CDC370C766A973BF59B320AE7B3C610530BD572E841D7AA9901A1372E663
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 36c29292b2e88c82 (54 x AgentTesla, 33 x RedLineStealer, 11 x Formbook)
Reporter threatcat_ch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
656
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
Datasheet.pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-03-28 02:10:47 UTC
Tags:
stealer evasion exfiltration smtp agenttesla ultravnc rmm-tool
Link:
https://app.any.run/tasks/1a3312b1-ad9a-485d-bcfa-d88cd51cce0d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.vh.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e6052075b5aed0174e2f93
Tags:
autorun autoit emotet lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script evasive explorer fingerprint hacktool keylogger lolbin masquerade microsoft_visual_cc msiexec packed regsvr32
Link:
https://www.filescan.io/uploads/67e60492d07c4c37a25dcd12/reports/87abfee5-4c2a-4697-98ed-f8a81603b779/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/4a1b06e809dd5c48be6fe00d20a2117197159a21cc8cb5840fe64cd8b31661bd
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/294bc452-023e-4dfc-bec2-f63f82c1a36b
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1650784
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Binary is likely a compiled AutoIt script file
Contains functionality to log keystrokes (.Net Source)
Drops VBS files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Joe Sandbox ML detected suspicious 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)
Sigma detected: Drops script at startup location
Sigma detected: Suspicious Double Extension File Execution
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
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 an obfuscated file name to hide its real file extension (double extension)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1650784 Sample: Datasheet.pdf.exe Startdate: 28/03/2025 Architecture: WINDOWS Score: 100 36 smtp.yandex.ru 2->36 38 api.ipify.org 2->38 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 12 other signatures 2->62 9 Datasheet.pdf.exe 4 2->9         started        13 wscript.exe 1 2->13         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\penstocks.exe, PE32 9->32 dropped 82 Binary is likely a compiled AutoIt script file 9->82 84 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->84 15 penstocks.exe 2 9->15         started        86 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->86 19 penstocks.exe 1 13->19         started        signatures6 process7 file8 34 C:\Users\user\AppData\...\penstocks.vbs, data 15->34 dropped 44 Binary is likely a compiled AutoIt script file 15->44 46 Drops VBS files to the startup folder 15->46 48 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 15->48 50 Switches to a custom stack to bypass stack traces 15->50 21 penstocks.exe 1 15->21         started        24 RegSvcs.exe 15->24         started        52 Writes to foreign memory regions 19->52 54 Maps a DLL or memory area into another process 19->54 26 RegSvcs.exe 2 19->26         started        signatures9 process10 signatures11 64 Binary is likely a compiled AutoIt script file 21->64 66 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 21->66 68 Writes to foreign memory regions 21->68 70 Maps a DLL or memory area into another process 21->70 28 RegSvcs.exe 15 2 21->28         started        72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->72 74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 26->74 76 Tries to steal Mail credentials (via file / registry access) 26->76 78 Tries to harvest and steal ftp login credentials 26->78 80 2 other signatures 26->80 process12 dnsIp13 40 smtp.yandex.ru 77.88.21.158, 49725, 49730, 49735 YANDEXRU Russian Federation 28->40 42 api.ipify.org 104.26.12.205, 443, 49723, 49728 CLOUDFLARENETUS United States 28->42 88 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 28->88 90 Tries to steal Mail credentials (via file / registry access) 28->90 92 Installs a global keyboard hook 28->92 signatures14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4a1b06e809dd5c48be6fe00d20a2117197159a21cc8cb5840fe64cd8b31661bd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a1b06e809dd5c48be6fe00d20a2117197159a21cc8cb5840fe64cd8b31661bd/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-03-28 03:13:00 UTC
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jinqn2aj3voerptp4agsbiqroglrlgrbzsgllbap4zgnrmywmg6q._file
Verdict:
malicious
Label(s):
unc_loader_036
Create hunting rule
agenttesla
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unc_loader_001
Create hunting rule
Similar samples:
error
AgentTesla
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/250328-ckpttssqs4/
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
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
Executes dropped EXE
Loads dropped DLL
AgentTesla
Agenttesla family
Verdict:
Malicious
Tags:
trojan external_ip_lookup
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/e939b707-dd68-43e0-84e2-73419a0708a5
Unpacked files
SH256 hash:
4a1b06e809dd5c48be6fe00d20a2117197159a21cc8cb5840fe64cd8b31661bd
MD5 hash:
c18297b5b53a4847e696422d83d408d7
SHA1 hash:
a1e8794a74797b2df257957107d7c36a73e1c52e
Link:
https://www.unpac.me/results/30193691-4112-4cda-8ffb-f2d6f1d81e93/
SH256 hash:
178bff5642bab7a23de133933f76be9ea21220762a6e65f8ee1073606ee0b244
MD5 hash:
0b52a71df84d1352774fbd7ba43ad3ea
SHA1 hash:
17343c18e9b9848024505fc9a6003ea49d074469
Detections:
win_samsam_auto
Create hunting rule
SUSP_OBF_NET_Reactor_Native_Stub_Jan24
Create hunting rule
MAL_Malware_Imphash_Mar23_1
Create hunting rule
MetaStealer_NET_Reactor_packer
Create hunting rule
MALWARE_Win_RedLine
Create hunting rule
Link:
https://www.unpac.me/results/30193691-4112-4cda-8ffb-f2d6f1d81e93/
SH256 hash:
5eb7309d22e91369b98cf62ce4aab5c8f99b2f19394af76d3cd6fd6d40d64094
MD5 hash:
c2d913a66dabd9245f73e83ddf3f9904
SHA1 hash:
2b84bfc1782d6bf3fad209a677eef35d0f8ab3cf
Detections:
AgentTesla
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Link:
https://www.unpac.me/results/30193691-4112-4cda-8ffb-f2d6f1d81e93/
SH256 hash:
a5f76cfe2791909fb38dcef2b3ea65003f65a87e016611f886aaaa9249e0c4ac
MD5 hash:
e6f6f4bf569bc00235a72f3d74ae4c7f
SHA1 hash:
7b0dcc64292482adb1243ca5f21cb91825902a97
Detections:
AgentTesla
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
RedLine_Campaign_June2021
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Link:
https://www.unpac.me/results/30193691-4112-4cda-8ffb-f2d6f1d81e93/
Malware family:
RedNet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4a1b06e809dd/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/4a1b06e809dd5c48be6fe00d20a2117197159a21cc8cb5840fe64cd8b31661bd

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: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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MALWARE_Win_RedLine
Create hunting rule
Author:ditekSHen
Description:Detects RedLine infostealer
Rule name:MAL_Malware_Imphash_Mar23_1
Create hunting rule
Author:Arnim Rupp
Description:Detects malware by known bad imphash or rich_pe_header_hash
Reference:https://yaraify.abuse.ch/statistics/
Rule name:NET
Create hunting rule
Author:malware-lu
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:win_samsam_auto
Create hunting rule
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.

Malspam

AgentTesla

Executable exe 4a1b06e809dd5c48be6fe00d20a2117197159a21cc8cb5840fe64cd8b31661bd

(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

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