MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f5ee99a8faff731ddd6012cf23500ae4c14582d7a68cf1bb1655e4571502e38. 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: 16

Intelligence 16 IOCs YARA 28 File information Comments

SHA256 hash:	3f5ee99a8faff731ddd6012cf23500ae4c14582d7a68cf1bb1655e4571502e38
SHA3-384 hash:	0116b806b368f09ec01ec1cdd4541a7c538f2fc4d35d08ae8e549050992c7e7ddec46c0423b256eb18d37e9f5cff7042
SHA1 hash:	54ff6a97735e659ed5b81a206abdc40e3d68bafb
MD5 hash:	5249381109ea41b549b21b7059502371
humanhash:	white-freddie-venus-wisconsin
File name:	FakturaPSI520-0000002250.xlsx.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'103'872 bytes
First seen:	2025-07-21 06:54:57 UTC
Last seen:	2025-08-12 13:56:09 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep	24576:8tb20pkaCqT5TBWgNQ7abPC70vN/mK4Irl6A:lVg5tQ7abPC70v5mKPp5
Threatray	4'137 similar samples on MalwareBazaar
TLSH	T1EA35BF1373DE8361C7B25273BA25B741BEBF782506A1F86B2FD4093DE920122525E673
TrID	40.3% (.EXE) Win64 Executable (generic) (10522/11/4) 19.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.2% (.EXE) Win32 Executable (generic) (4504/4/1) 7.7% (.EXE) OS/2 Executable (generic) (2029/13) 7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	Anonymous
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

FakturaPSI520-0000002250.xlsx.exe

Verdict:

No threats detected

Analysis date:

2025-07-21 08:05:02 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/ead282df-ab2d-4f2a-a026-d5ce1f39853d

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/16047/

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=687de46984b37dd61ef02a61

Tags:

underscore phishing autoit emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Launching a process

Сreating synchronization primitives

Launching cmd.exe command interpreter

Setting browser functions hooks

Unauthorized injection to a system process

Unauthorized injection to a browser process

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context autoit cmdkey compiled-script fingerprint fingerprint keylogger lolbin microsoft_visual_cc netsh obfuscated packed packed packer_detected pcalua squirrel wmic

Link:

https://www.filescan.io/uploads/687de46d8a7d628a81b96446/reports/33a2bb4c-2abe-4101-97d3-12ef39248cd6/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_60%

Link:

https://www.hybrid-analysis.com/sample/3f5ee99a8faff731ddd6012cf23500ae4c14582d7a68cf1bb1655e4571502e38

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/73ce0dac-b14e-41d8-aec2-08cbe5066e60

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/3f5ee99a8faff731ddd6012cf23500ae4c14582d7a68cf1bb1655e4571502e38

Verdict:

Malware

YARA:

7 match(es)

Tags:

AutoIt Decompiled Executable PDB Path PE (Portable Executable) Suspect Win 32 Exe x86

Link:

https://app.malva.re/file/5249381109ea41b549b21b7059502371

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3f5ee99a8faff731ddd6012cf23500ae4c14582d7a68cf1bb1655e4571502e38/

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2025-07-21 06:28:42 UTC

AV detection:

14 of 37 (37.84%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=h5potgupv73tdxowaewpeniavzgbiwbnpjum6g5rmvpek4kqfy4a._file

Verdict:

malicious

Label(s):

unc_loader_036

formbook

autoit

Formbook

21d3f57e61ce525123d11ca6da1dbfe05b9e95bdd5867309e38d59c4140f7d86

Formbook

3f5ee99a8faff731ddd6012cf23500ae4c14582d7a68cf1bb1655e4571502e38

Formbook

49c3a7ea74d668d9074b276fd7e7c620a0290171a406290d71a8ac5c9c54a175

Formbook

9d0f61e791157c9ddf6445ab94ca9ad7935633472c1c6f7f7d8bc99bb129fcd2

Formbook

ea5ad478df7db224610821def4d39b12ba7ef2f7a95fe88c9bc30a135bca5739

Formbook

error

Formbook

f6d72553d533584daf51444fdf44e22bf381c514ad84dbab40aa331ea6e78031

Formbook

+ 4'127 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:ua09 discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/250721-hp28lsfp8s/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Formbook payload

Formbook

Formbook family

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/b7be9201-23b0-4cd4-8ef9-6a31f6fda93b

Unpacked files

SH256 hash:

3f5ee99a8faff731ddd6012cf23500ae4c14582d7a68cf1bb1655e4571502e38

MD5 hash:

5249381109ea41b549b21b7059502371

SHA1 hash:

54ff6a97735e659ed5b81a206abdc40e3d68bafb

Link:

https://www.unpac.me/results/568e6c99-5aab-4cfa-b092-78ac472ebe4b/

SH256 hash:

aed2ada3a83ff8eb11deeae5e93b3c8c594d54ee5ecb9f9216eeb0ba83896d8b

MD5 hash:

db77aca8c020a46ee21a4a8b9c785e74

SHA1 hash:

2c51594d27532b2b27ab6c6f514bcba8c13900a6

Detections:

win_formbook_w0

win_formbook_g0

win_formbook_auto

FormBook

Windows_Trojan_Formbook

Formbook

Link:

https://www.unpac.me/results/568e6c99-5aab-4cfa-b092-78ac472ebe4b/

Parent samples :
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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/3f5ee99a8faff731ddd6012cf23500ae4c14582d7a68cf1bb1655e4571502e38

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:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__GlobalFlags Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Active Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

Rule name:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

Rule name:	YahLover Create hunting rule
Author:	Kevin Falcoz
Description:	YahLover

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape

https://www.capesandbox.com/analysis/16047/

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 (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::AllocateAndInitializeSid ADVAPI32.dll::CopySid ADVAPI32.dll::FreeSid ADVAPI32.dll::GetLengthSid ADVAPI32.dll::GetTokenInformation ADVAPI32.dll::GetAce
COM_BASE_API	Can Download & Execute components	ole32.dll::CLSIDFromProgID ole32.dll::CoCreateInstance ole32.dll::CoCreateInstanceEx ole32.dll::CoInitializeSecurity ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::mciSendStringW WINMM.dll::timeGetTime WINMM.dll::waveOutSetVolume
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AddAce ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::CheckTokenMembership ADVAPI32.dll::DuplicateTokenEx ADVAPI32.dll::GetAclInformation ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExW SHELL32.dll::ShellExecuteW SHELL32.dll::SHFileOperationW
WIN32_PROCESS_API	Can Create Process and Threads	ADVAPI32.dll::CreateProcessAsUserW KERNEL32.dll::CreateProcessW ADVAPI32.dll::CreateProcessWithLogonW KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken ADVAPI32.dll::OpenThreadToken
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::SetSystemPowerState KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::LoadLibraryW KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateHardLinkW IPHLPAPI.DLL::IcmpCreateFile KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::GetComputerNameW ADVAPI32.dll::GetUserNameW ADVAPI32.dll::LogonUserW ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_API	Supports Windows Networking	MPR.dll::WNetAddConnection2W MPR.dll::WNetUseConnectionW
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegConnectRegistryW ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW
WIN_USER_API	Performs GUI Actions	USER32.dll::BlockInput USER32.dll::CloseDesktop USER32.dll::CreateMenu USER32.dll::EmptyClipboard USER32.dll::FindWindowExW USER32.dll::FindWindowW

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