MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3a50ff1e7a5fbde11e1f103161b01284e78d8bad05116052b6bfda6e9cac55a. 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: 15


Intelligence 15 IOCs YARA 16 File information Comments

SHA256 hash: f3a50ff1e7a5fbde11e1f103161b01284e78d8bad05116052b6bfda6e9cac55a
SHA3-384 hash: 99a5e4ddc6ce68336f407eabc79c8c9dafb14f76cee57e55fc21a58bbaf79da5f45692bc77385c680c1ef957d0d69222
SHA1 hash: 9a5fa8d3e90ef6de9ef7117f87a9eabcb39d1189
MD5 hash: f0483efd3c238f3181609c3aa40fdac6
humanhash: south-chicken-single-oregon
File name:f3a50ff1e7a5fbde11e1f103161b01284e78d8bad05116052b6bfda6e9cac55a
Download: download sample
Signature Formbook
File size:1'211'904 bytes
First seen:2025-01-10 14:36:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:1u6J33O0c+JY5UZ+XC0kGso6Faj8tIty5lJ8z0YE/zdL8qWY:Xu0c++OCvkGs9FajcIty5lqI5/zp8Y
TLSH T1A345CF2273DDC370CB669173BF69B7056EBF38614630B95B2F880D7DA950162262C7A3
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
217
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f3a50ff1e7a5fbde11e1f103161b01284e78d8bad05116052b6bfda6e9cac55a
Verdict:
No threats detected
Analysis date:
2025-01-10 21:30:36 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.1%
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-vm anti-vm autoit compiled-script fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed packed packer_detected reg regedit
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1588319 Sample: Gz2FxKx2cM.exe Startdate: 10/01/2025 Architecture: WINDOWS Score: 100 28 www.izmirescortg.xyz 2->28 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected FormBook 2->36 38 Binary is likely a compiled AutoIt script file 2->38 42 2 other signatures 2->42 10 Gz2FxKx2cM.exe 2 2->10         started        signatures3 40 Performs DNS queries to domains with low reputation 28->40 process4 signatures5 54 Binary is likely a compiled AutoIt script file 10->54 56 Writes to foreign memory regions 10->56 58 Maps a DLL or memory area into another process 10->58 60 Switches to a custom stack to bypass stack traces 10->60 13 svchost.exe 10->13         started        process6 signatures7 62 Maps a DLL or memory area into another process 13->62 16 HFOpYoEqWJkRNv.exe 13->16 injected process8 signatures9 32 Found direct / indirect Syscall (likely to bypass EDR) 16->32 19 mobsync.exe 13 16->19         started        process10 signatures11 44 Tries to steal Mail credentials (via file / registry access) 19->44 46 Tries to harvest and steal browser information (history, passwords, etc) 19->46 48 Modifies the context of a thread in another process (thread injection) 19->48 50 3 other signatures 19->50 22 HFOpYoEqWJkRNv.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 30 www.izmirescortg.xyz 104.21.36.62, 49709, 80 CLOUDFLARENETUS United States 22->30 52 Found direct / indirect Syscall (likely to bypass EDR) 22->52 signatures14
Threat name:
Win32.Trojan.AutoitInject
Status:
Malicious
First seen:
2024-12-09 01:24:39 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook unknown_loader_036
Similar samples:
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
trojan
YARA:
SUSP_Imphash_Mar23_3
Unpacked files
SH256 hash:
b873cad08d4e06a3870e8fd9e347d81d8697a3ae538e4a04592fe62f47257d03
MD5 hash:
e8d330920b2fee299125423a0d42ddbf
SHA1 hash:
b776e5223b15e02d59280d01951f4ef533e84990
Detections:
win_formbook_g0
SH256 hash:
2d6843f1847d052b1753a3367a157ba82f1d01dcf12113b5555fca5589807175
MD5 hash:
6942459b785b940a4a766e2d76b3e89e
SHA1 hash:
ad57bca43431e73a44496833a76d9aeaa411b615
SH256 hash:
f3a50ff1e7a5fbde11e1f103161b01284e78d8bad05116052b6bfda6e9cac55a
MD5 hash:
f0483efd3c238f3181609c3aa40fdac6
SHA1 hash:
9a5fa8d3e90ef6de9ef7117f87a9eabcb39d1189
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:AutoIT_Compiled
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
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RansomPyShield_Antiransomware
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_Imphash_Mar23_3
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: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_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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