MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 971d93841f98eca38b5e2f6378483e639e6723abcfea439071419948a0a624fd. 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 5 File information Comments

SHA256 hash: 971d93841f98eca38b5e2f6378483e639e6723abcfea439071419948a0a624fd
SHA3-384 hash: 749dc7e3c15e745d24513a631d1837135d7a0fa6e9073a06e5aa8250654e30f4d1a6a5474ba304d3c4b80bb1743e4ae7
SHA1 hash: 7d66b25bf9f741d971086ed1c91b7407cb272971
MD5 hash: e19b63ea736a38df3f50918151e06354
humanhash: golf-white-may-emma
File name:PO-4902134-pdf.exe
Download: download sample
Signature AgentTesla
File size:1'503'744 bytes
First seen:2025-08-22 05:48:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b8468eeb54859ed9d4261d3c692633fe (2 x AgentTesla, 2 x DBatLoader, 1 x Formbook)
ssdeep 24576:7iT+iaKsRHocfsOyPyoUkEmMZeZ0nmCM1MCQiFbbcud4Lr:7i6pUOyPvUkEJ8ZymN1MCQavd
TLSH T11565E132A6F04633D02215796D2796ACD9987D30EF2DF86ABADC1D8C4F387C1351929B
TrID 35.4% (.EXE) Win64 Executable (generic) (10522/11/4)
22.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.1% (.EXE) Win32 Executable (generic) (4504/4/1)
6.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
6.8% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 286d0d37f39d6c6a (2 x AgentTesla, 1 x Formbook, 1 x DBatLoader)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
89
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
PO-4902134-pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-08-22 05:50:34 UTC
Tags:
delphi dbatloader loader auto-sch stealer ultravnc rmm-tool exfiltration smtp agenttesla netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
underscore delphi remcos emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Launching a service
Moving of the original file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug borland_delphi fingerprint keylogger modiloader overlay overlay packed phishing remcos unsafe zero
Result
Threat name:
AgentTesla, DBatLoader, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates many large memory junks
Allocates memory in foreign processes
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (overwrites its own PE header)
Drops PE files to the user root directory
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses process hollowing technique
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Suspicious Program Location with Network Connections
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 ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected DBatLoader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1762683 Sample: PO-4902134-pdf.exe Startdate: 22/08/2025 Architecture: WINDOWS Score: 100 40 mail.gunsaldi.com 2->40 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 10 other signatures 2->52 8 PO-4902134-pdf.exe 7 2->8         started        12 rundll32.exe 3 2->12         started        signatures3 process4 file5 38 C:\Users\Public\undfmqrM.exe, PE32 8->38 dropped 62 Drops PE files to the user root directory 8->62 64 Uses schtasks.exe or at.exe to add and modify task schedules 8->64 66 Writes to foreign memory regions 8->66 68 4 other signatures 8->68 14 undfmqrM.exe 2 8->14         started        18 cmd.exe 1 8->18         started        20 cmd.exe 1 8->20         started        22 schtasks.exe 1 8->22         started        24 Mrqmfdnu.exe 12->24         started        signatures6 process7 dnsIp8 44 mail.gunsaldi.com 31.222.235.198, 49686, 49691, 587 GIGALIS-ASFR unknown 14->44 70 Detected unpacking (overwrites its own PE header) 14->70 72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->72 74 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->74 76 Tries to steal Mail credentials (via file / registry access) 14->76 78 Uses ping.exe to sleep 18->78 80 Uses ping.exe to check the status of other devices and networks 18->80 26 conhost.exe 18->26         started        28 PING.EXE 1 20->28         started        31 conhost.exe 20->31         started        33 conhost.exe 22->33         started        82 Writes to foreign memory regions 24->82 84 Allocates memory in foreign processes 24->84 86 Sample uses process hollowing technique 24->86 88 Allocates many large memory junks 24->88 35 undfmqrM.exe 2 24->35         started        signatures9 process10 dnsIp11 42 127.0.0.1 unknown unknown 28->42 54 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 35->54 56 Tries to steal Mail credentials (via file / registry access) 35->56 58 Tries to harvest and steal ftp login credentials 35->58 60 Tries to harvest and steal browser information (history, passwords, etc) 35->60 signatures12
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2025-08-22 00:59:43 UTC
File Type:
PE (Exe)
Extracted files:
43
AV detection:
31 of 38 (81.58%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
dbatloader unc_loader_001
Similar samples:
Result
Malware family:
modiloader
Score:
  10/10
Tags:
family:modiloader defense_evasion discovery execution persistence spyware stealer trojan
Behaviour
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Executes dropped EXE
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
Modifies trusted root certificate store through registry
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
Verdict:
Malicious
Tags:
Win.Trojan.Modiloader-10042434-0
YARA:
n/a
Unpacked files
SH256 hash:
971d93841f98eca38b5e2f6378483e639e6723abcfea439071419948a0a624fd
MD5 hash:
e19b63ea736a38df3f50918151e06354
SHA1 hash:
7d66b25bf9f741d971086ed1c91b7407cb272971
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:BobSoftMiniDelphiBoBBobSoft
Author:malware-lu
Rule name:Borland
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

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