MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520. 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 5 File information Comments

SHA256 hash:	4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520
SHA3-384 hash:	04d5e79a8b953bebd2253f72659a876c17649e871d54dc33e18f14764651e4fa5412de84f26ba30616b9bbd3d51e4a00
SHA1 hash:	8ffe85bb36801c85bc9dc5513bf5374967d8f368
MD5 hash:	e91f0d916667c2b487e6f7def1a83f04
humanhash:	carolina-cardinal-illinois-illinois
File name:	4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'360'839 bytes
First seen:	2024-10-09 12:18:54 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	369fe35b86c83b3130c02698158a4d4d (14 x Formbook, 4 x RedLineStealer, 4 x AgentTesla)
ssdeep	24576:LRmJkcoQricOIQxiZY1WNyt3Zrz0ffIB+L2I/aAOx47jXRpGn:IJZoQrbTFZY1WNyRO4Bep/aAO4pGn
Threatray	1'130 similar samples on MalwareBazaar
TLSH	T15655E121F5C68076C2B323719E7EF36A9A3D79360327D29737C81D215EA05816B2A773
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
File icon (PE):
dhash icon	b150b26869b2d471 (468 x Formbook, 101 x RedLineStealer, 94 x AgentTesla)
Reporter	adrian__luca
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

394

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520

Verdict:

Malicious activity

Analysis date:

2024-10-09 12:46:35 UTC

Tags:

autoit

Link:

https://app.any.run/tasks/f1e0ed54-ef77-489d-9ad6-3cf0cbda16cd

Note:

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

Detection(s):

PUA.Win.Packer.Embedpe-3

PUA.Win.Packer.AcprotectUltraprotect-1

SecuriteInfo.com.BackDoor.IRC.Bot.3238.UNOFFICIAL

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=670674c1ab31793a7b210643

Tags:

Autorun Autoit Emotet

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc overlay packed shell32

Link:

https://www.filescan.io/uploads/670674c035b81f79905f1107/reports/c2a10b5c-9106-4919-8b65-1afc0dbb3a70/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520

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/93537860-9115-45ea-b83b-ecc0cef381ef

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1529911

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Drops VBS files to the startup folder

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sigma detected: Drops script at startup location

Sigma detected: WScript or CScript Dropper

Switches to a custom stack to bypass stack traces

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520/

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2024-10-08 17:41:44 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

27 of 38 (71.05%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ii35lhodvyjghq4lixpdpz7w2wqtei6leftp5ibzjjkzhxl7kuqa._file

Verdict:

malicious

Label(s):

unknown_loader_036

admintool_powerrun

Formbook

10fbd62f7aa5eaf3e0ae5357030e7303a194eabaee54b994825ce2b3d1a470c1

Formbook

11d9c56cf62a70c2fa83766662485e8ce2c02a692db8e5274e49dbd17bfc2e65

Formbook

89b1ea20621f800e5d831135d317cacc37600d317b17f1e49683b2a02806d218

Formbook

982c3260b68600ee0aff04207c411c5bd348cd6929c378b3d6845b64b338da47

Formbook

error

Formbook

f0ecdc825d77eb812fc3eb89df18fc430e75b6f03c25bece0d43ab4ed49f76db

Formbook

+ 1'120 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

7/10

Tags:

discovery

Link:

https://tria.ge/reports/241009-pg6pdsthqr/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

AutoIT Executable

Suspicious use of SetThreadContext

Drops startup file

Executes dropped EXE

Loads dropped DLL

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/27be8cfa-bf37-46fe-928d-f82803d9b8f2

Unpacked files

SH256 hash:

ac87ea97c62c4790e3bfa9d2e43e790b5f899f1b54f24b4ea9e90f65f035bca5

MD5 hash:

0b96e62ee8dbba705224340ac3c96417

SHA1 hash:

74b9dcd99c47a30b7cbfc51994afee7dc68b01d9

Detections:

win_formbook_g0

win_formbook_w0

Windows_Trojan_Formbook

Link:

https://www.unpac.me/results/5802edee-0bf1-4f80-a4ea-acd151e286af/

SH256 hash:

12cfe43d80e8ead93e936e63d8b4334fcc4e362c4a70cdad84ac5931a2b3a927

MD5 hash:

1c654335edddd16fb5b5bd81d6b663f9

SHA1 hash:

ac53291250ff60434c7c9a9959271459cf7a037f

Link:

https://www.unpac.me/results/5802edee-0bf1-4f80-a4ea-acd151e286af/

SH256 hash:

83f4ac0157bf747c85d5bbce6ce3099e0861ce7cab40cfeeba282d4c4313d497

MD5 hash:

b175c6f76f144025ac54e99ea308178d

SHA1 hash:

eda0d90aa2a0fe7ea823e8fe6a4db6b5f06f2149

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/5802edee-0bf1-4f80-a4ea-acd151e286af/

Parent samples :
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SH256 hash:

502e54131bb60f975d7b2eb8f219ea51b8accb5f3a1a09b709f3895a6035a097

MD5 hash:

8619d6f664fa01a235dcb7e8b574fb6a

SHA1 hash:

97f5e79eb4b34c59e7d2460625f9615cf9ce1bc3

Detections:

win_formbook_g0

win_formbook_w0

Windows_Trojan_Formbook

Link:

https://www.unpac.me/results/5802edee-0bf1-4f80-a4ea-acd151e286af/

SH256 hash:

c0b57725cb5727e156ca733865a94b0edee3a4683c8a2f26203e3872ff7c8060

MD5 hash:

ca893bafce2900b9f5fe88f20892a557

SHA1 hash:

7d1ba4110a1d7195b8d40e1a307a799543ec68b5

Link:

https://www.unpac.me/results/5802edee-0bf1-4f80-a4ea-acd151e286af/

SH256 hash:

4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520

MD5 hash:

e91f0d916667c2b487e6f7def1a83f04

SHA1 hash:

8ffe85bb36801c85bc9dc5513bf5374967d8f368

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/5802edee-0bf1-4f80-a4ea-acd151e286af/

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/4237d59dc3ae1263c38b45de37e7f6d5a13223cb2166fea0394a5593dd7f5520

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 Create hunting rule
Author:	Jean-Philippe Teissier / @Jipe_
Description:	AutoIT packer

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

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
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::CopySid ADVAPI32.dll::GetLengthSid ADVAPI32.dll::GetAce USER32.dll::GetUserObjectSecurity ADVAPI32.dll::InitializeAcl ADVAPI32.dll::InitializeSecurityDescriptor
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::DuplicateTokenEx ADVAPI32.dll::GetAclInformation ADVAPI32.dll::GetSecurityDescriptorDacl ADVAPI32.dll::GetTokenInformation
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::LoadLibraryW KERNEL32.DLL::LoadLibraryExW KERNEL32.DLL::LoadLibraryA KERNEL32.DLL::GetDriveTypeW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.DLL::WriteConsoleW 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 KERNEL32.DLL::CreateFileW KERNEL32.DLL::DeleteFileW KERNEL32.DLL::MoveFileW
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_SVC_API	Can Manipulate Windows Services	ADVAPI32.dll::OpenSCManagerW ADVAPI32.dll::UnlockServiceDatabase
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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