MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50. 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

Intelligence 14 IOCs YARA 15 File information Comments

SHA256 hash:	4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50
SHA3-384 hash:	83204428bc2be78aca2faaba47125cbce0b198dd0c67de6215806a4ffb1346a6538efd50ee4fab7b43dbb774d957b052
SHA1 hash:	5c53714f58a4d01622b513e3a5de12b23c0a023d
MD5 hash:	7fef5f1b1c089ce69d94d80d735cbc01
humanhash:	three-undress-mango-helium
File name:	4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'561'600 bytes
First seen:	2025-02-07 14:12:30 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep	24576:Itb20pkaCqT5TBWgNQ7aRPkT/E34WYPWk3FYjevrHC9c4b96A:RVg5tQ7aRsbEbYOkqevTGcC5
Threatray	1'411 similar samples on MalwareBazaar
TLSH	T12875E01373DEC361C3B25273BA6677416E7B782506A5F96B2FD8093DF820122521EA73
TrID	68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 12.5% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.EXE) Win16 NE executable (generic) (5038/12/1) 5.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
File icon (PE):
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 :

# of downloads :

187

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50

Verdict:

No threats detected

Analysis date:

2025-02-07 15:21:14 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/adb42cdf-1e03-4d89-b1df-b887afb4f586

Note:

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

Detection(s):

SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL

Verdict:

Malicious

Score:

94.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67a616f8ab8a2d1c6bcd80ab

Tags:

autoit emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Creating a file in the %temp% directory

Launching a process

Сreating synchronization primitives

Unauthorized injection to a system process

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50

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:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/75451443-bfeb-415a-93b3-6380bf55ca14

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1609322

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

Binary is likely a compiled AutoIt script file

Found direct / indirect Syscall (likely to bypass EDR)

Joe Sandbox ML detected suspicious sample

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)

Suricata IDS alerts for network traffic

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:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50/

Threat name:

Win32.Backdoor.FormBook

Status:

Malicious

First seen:

2025-01-22 15:26:42 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

23 of 38 (60.53%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jnay4xvxqnhh73rswwwpbmtbacydqusmbhywbdepny63lavzlzia._file

Verdict:

malicious

Label(s):

unknown_loader_036

autoit

Result

Malware family:

n/a

Score:

5/10

Tags:

discovery

Link:

https://tria.ge/reports/250207-rjhrfstmhx/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/09df3e82-2fde-47ba-8039-0c1c0332db5d

Unpacked files

SH256 hash:

4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50

MD5 hash:

7fef5f1b1c089ce69d94d80d735cbc01

SHA1 hash:

5c53714f58a4d01622b513e3a5de12b23c0a023d

Link:

https://www.unpac.me/results/9ac13218-8482-4729-b680-0d1835bb637d/

SH256 hash:

1855cce9999639e9b9adfbd3b8fcecc38496dcb317bdc07a96646d29baa21bd3

MD5 hash:

a476742b7f94156f4d4766da39045c49

SHA1 hash:

3d2cb668bead4041fbf1053f99ca906c8f601c39

Link:

https://www.unpac.me/results/9ac13218-8482-4729-b680-0d1835bb637d/

SH256 hash:

9d57c0013f4cd1a7a3e96fd903000aad4ec40762600a8b2f826e944e9b55e076

MD5 hash:

08740230b34cd449eaea6667d3519bb4

SHA1 hash:

22d1bdc65ee79815ec696ba4cfd48fa95c21e141

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/9ac13218-8482-4729-b680-0d1835bb637d/

Parent samples :

4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50
83e93442f27ea43a73bcf5a76a506a3ba4aecb6498a6e10e3fff769106257785
47ca4cd83b29aa808906036b899f0e7264fd08370b7b6fad08e4962b214aa233
1bdef8ff7052f1badae644c9bf23b32480d27460444132d4eb3ab3d7cae8271c

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/4b418e5eb7834e7fee32b5acf0b26100b038524c09f1608c8f6e3db582b95e50

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:	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:	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_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:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

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.

No further information available

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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