MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f783322d824a009bdcdf0ecfc1065d5039bf39c67321aedb81241eba942e2b78. 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
Formbook
Vendor detections: 14
| SHA256 hash: | f783322d824a009bdcdf0ecfc1065d5039bf39c67321aedb81241eba942e2b78 |
|---|---|
| SHA3-384 hash: | b5a1aa0b6ec8ec95b501e49adcb0965d348d4e7e1aebf5faa3bed830f662afe08fbd31946eb0768ce9ac648a216839ef |
| SHA1 hash: | fcb487f57452a0d46c90bfcb103ebfa7e6d0a5bb |
| MD5 hash: | f7e8acb9ce13f8754aa9fd67d3857afc |
| humanhash: | east-arizona-hot-uranus |
| File name: | f7e8acb9ce13f8754aa9fd67d3857afc |
| Download: | download sample |
| Signature | Formbook |
| File size: | 2'574'910 bytes |
| First seen: | 2024-06-25 05:06:21 UTC |
| Last seen: | 2024-06-25 05:33:15 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 12288:Gza40RpKLO43mMyivZ30yV/4+Rr/2JyIVSztHDhbh7:GzaXnW9Z5ZEyd4E+TVSDbF |
| TLSH | T192C50125B98F6E23FC5559B8D5C231F520FC8E6336FA8A0FCF886CA588064BC6471975 |
| TrID | 44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| Reporter |  zbetcheckin |
| Tags: | 64 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
396
Origin country :
FRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
COTIZACION.RFQ#48748930_A2024_MATERIALES_exports.docx
Verdict:
Malicious activity
Analysis date:
2024-06-21 00:46:18 UTC
Tags:
cve-2017-0199 exploit cve-2017-11882
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
Tags:
Banker Encryption Execution Generic Infostealer Malware Dexter
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Sending a custom TCP request
Creating a window
Blocking the User Account Control
Stealing user critical data
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
overlay stealer
Verdict:
Malicious
Labled as:
Trojan.Generic
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.
Verdict:
Suspicious
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
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)
Disables UAC (registry)
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win64.Spyware.Negasteal
Status:
Malicious
First seen:
2024-06-21 02:34:00 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
20 of 24 (83.33%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
agenttesla_v4
agenttesla
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla evasion execution keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks whether UAC is enabled
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
Windows security modification
Command and Scripting Interpreter: PowerShell
AgentTesla
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
f783322d824a009bdcdf0ecfc1065d5039bf39c67321aedb81241eba942e2b78
MD5 hash:
f7e8acb9ce13f8754aa9fd67d3857afc
SHA1 hash:
fcb487f57452a0d46c90bfcb103ebfa7e6d0a5bb
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.69
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: | Agenttesla_type2 |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Agenttesla in memory |
| Reference: | internal research |
| 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: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| 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.
Web download
Delivery method
Distributed via web download
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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