MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bd4f1621ebf7a983fe8e6839934289983f7e33c21b3f36c06559686113bc61e4. 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 16 File information Comments

SHA256 hash:	bd4f1621ebf7a983fe8e6839934289983f7e33c21b3f36c06559686113bc61e4
SHA3-384 hash:	147db905c2bd574a8d765ce37d59161a5b0dba78284089955f273fd34cf405219a68cb74adea6f1600d7d0a9bd9758ed
SHA1 hash:	86e9a884bf3c36d70308f3688b4417144bfe8b79
MD5 hash:	36ed9b91abbdda0e0aeb246352e985a4
humanhash:	whiskey-triple-illinois-carbon
File name:	DB-5230 CES000G00956 BUPC-MEG.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'619'456 bytes
First seen:	2025-01-14 07:37:15 UTC
Last seen:	2025-01-14 07:41:12 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep	49152:nTvC/MTQYxsWR7aUP5Txh3M/UWdErp7Wnm:TjTQYxsWRrxc/Yp7G
TLSH	T10A75E00273C1D022FFAB92334B5AE65157BC6A260123EA2F13981D7DBD705B1563E7A3
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	cocaman
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

392

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

DB-5230 CES000G00956 BUPC-MEG.exe

Verdict:

No threats detected

Analysis date:

2025-01-14 07:43:00 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/07653255-e7e1-4f0f-8107-222b9a782641

Note:

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

Detection(s):

SecuriteInfo.com.Trojan.Generic.33203615.28472.17882.UNOFFICIAL

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6786145d4487910100dec2c7

Tags:

autoit emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Launching a process

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Unauthorized injection to a system process

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context autoit compiled-script evasive fingerprint fingerprint keylogger lolbin microsoft_visual_cc netsh packed packed packer_detected

Link:

https://www.filescan.io/uploads/67861462c0bafe43f91a3f3d/reports/238601b9-71c6-493e-bc3b-73fc06b17568/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/bd4f1621ebf7a983fe8e6839934289983f7e33c21b3f36c06559686113bc61e4

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/8e43a53c-2af1-465c-9bd6-e49f3e477844

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

92 / 100

Link:

https://www.joesandbox.com/analysis/1590530

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Binary is likely a compiled AutoIt script file

Found API chain indicative of sandbox detection

Machine Learning detection for sample

Maps a DLL or memory area into another process

Multi AV Scanner detection for submitted file

Switches to a custom stack to bypass stack traces

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/bd4f1621ebf7a983fe8e6839934289983f7e33c21b3f36c06559686113bc61e4

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bd4f1621ebf7a983fe8e6839934289983f7e33c21b3f36c06559686113bc61e4/

Threat name:

Win32.Backdoor.FormBook

Status:

Malicious

First seen:

2025-01-13 23:39:38 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 37 (59.46%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xvhrmipl66uyh7uona4zgqujta7x4m6cdm7tnqdflfugce54mhsa._file

Verdict:

malicious

Label(s):

unknown_loader_036

formbook

Similar samples:

error

Formbook

Result

Malware family:

n/a

Score:

5/10

Tags:

discovery

Link:

https://tria.ge/reports/250114-jgdeystlhl/

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:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/83405272-7988-4539-9983-840acce8419a

Unpacked files

SH256 hash:

fbae71b6138dceca721f00b9810a910aefed5619460a4938a940bc7fa707387a

MD5 hash:

2ca5952f57ddb7742d326ba416816c55

SHA1 hash:

417b281562d27d7cb0c2a8bce0e6948916bc4e78

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/c7e0ccc7-5f28-4ff8-84d1-5f45366d2de3/

Parent samples :
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SH256 hash:

ae3b5c4ee64b1a9c4637594dd1d287714d80347a3606a14130a9f9046d9ffd1f

MD5 hash:

271d3df55b118d7a80d714e93e046803

SHA1 hash:

898266add8fb250530a832616cdcf2cb6e04e271

Link:

https://www.unpac.me/results/c7e0ccc7-5f28-4ff8-84d1-5f45366d2de3/

SH256 hash:

bd4f1621ebf7a983fe8e6839934289983f7e33c21b3f36c06559686113bc61e4

MD5 hash:

36ed9b91abbdda0e0aeb246352e985a4

SHA1 hash:

86e9a884bf3c36d70308f3688b4417144bfe8b79

Link:

https://www.unpac.me/results/c7e0ccc7-5f28-4ff8-84d1-5f45366d2de3/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/bd4f1621ebf7/report/overview.html

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/bd4f1621ebf7a983fe8e6839934289983f7e33c21b3f36c06559686113bc61e4

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:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

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:	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)

File information

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

Malspam

Formbook

rar 11dcbd6f0ca90be093fb2cbfe18e18e87460a2e96a31fc771a7b7619de70b931

Formbook

exe bd4f1621ebf7a983fe8e6839934289983f7e33c21b3f36c06559686113bc61e4

(this sample)

Delivery method

Other

Dropped by

SHA256 11dcbd6f0ca90be093fb2cbfe18e18e87460a2e96a31fc771a7b7619de70b931

Dropped by

MD5 49507ae87e72c73c625cc72d8013f893

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::LoadLibraryW KERNEL32.dll::LoadLibraryExW 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::CopyFileExW KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateHardLinkW IPHLPAPI.DLL::IcmpCreateFile KERNEL32.dll::CreateFileW
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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