MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a. 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: 17

Intelligence 17 IOCs YARA 21 File information Comments

SHA256 hash:	261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a
SHA3-384 hash:	ef44c64c3a4acc31bda17e34210cf4b9eb0fd52d9a8d9e68b93b0b134fbda6f2d7f2668aac9c15e041fd3daa27e0c84b
SHA1 hash:	b14b8a3983889d2641e13d9f0dbdef28ae5fc3d3
MD5 hash:	6b8beca73758b6a021ba6d613207073f
humanhash:	bulldog-table-oregon-network
File name:	staff record or employee record.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'099'776 bytes
First seen:	2024-06-04 12:38:22 UTC
Last seen:	2024-06-04 13:30:07 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep	24576:VAHnh+eWsN3skA4RV1Hom2KXMmHahltqn1UyL6XdaruGG5:Eh+ZkldoPK8YahynayLkdaSH
Threatray	1'164 similar samples on MalwareBazaar
TLSH	T1AD35AD0273D1D036FFAB92739B6AF64596BC79250123852F13981DB9BD701B2263E723
TrID	63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 11.6% (.EXE) Win64 Executable (generic) (10523/12/4) 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)
File icon (PE):
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	threatcat_ch
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

331

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a.exe

Verdict:

Malicious activity

Analysis date:

2024-06-04 12:40:29 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/f3560179-f439-4091-a225-58ae01a160d3

Note:

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

Detection(s):

SecuriteInfo.com.Win32.Trojan-Stealer.FormBook.7PFDEV.11238.2479.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=665f20bfab69e84d6a2f5faewin7simulatehigh_evasion

Tags:

Encryption Execution Generic Network Shellcodecrypter

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

DNS request

Connection attempt

Setting browser functions hooks

Unauthorized injection to a system process

Unauthorized injection to a browser process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32

Link:

https://www.filescan.io/uploads/665f0ae849a1c830626572cd/reports/4e6b0d3c-26eb-4865-b249-e9ee4baceb67/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a

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/8bb82a66-4525-4079-8701-97e095498e94

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1451717

Signature

AI detected suspicious sample

Antivirus detection for URL or domain

Binary is likely a compiled AutoIt script file

C2 URLs / IPs found in malware configuration

Found malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

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

Queues an APC in another process (thread injection)

Sample uses process hollowing technique

Snort IDS alert for network traffic

System process connects to network (likely due to code injection or exploit)

Tries to detect virtualization through RDTSC time measurements

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a/

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2024-06-04 01:32:21 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

16 of 37 (43.24%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=eykflwloq4euk7x63xyztdt4d57gymzvkhxkdlnhkbx7vzrhaa5a._file

Verdict:

malicious

Label(s):

formbook

Formbook

694598619af82fa1824d6acfe519b0db6488e4db2ca70021288a6d20bf53ebaa

Formbook

7b692628c5a43cef1780ecd6223c6fa9e40a1e45932db8456738ecd61700544d

Formbook

958d107ae823cd619fa042dcbaaa97155b1cecc092863f998f2ee4dca893beed

Formbook

a731a3484aa2cde6c16d273b0838b664de71e45c498d6412dca328b457873248

Formbook

b878010c65295ac447edb5249825bc8ef4ba872b9a584b3dfbe4ad8f25634bfb

Formbook

d0b94b855d2f24add1edf6b3a6ecae24e4366f181a1ccd0bcd3b27e94de95bc0

Formbook

d6f3187ea8a4c0cb9e263a665487060b5b14caf184a5343b2ed928b67d16a264

Formbook

+ 1'154 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:as02 rat spyware stealer trojan

Link:

https://tria.ge/reports/240604-pvl7xagb8z/

Behaviour

Gathers network information

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Formbook payload

Formbook

Unpacked files

SH256 hash:

26f95671ce66d43199127c2543679ee7a1ad1c4519fdf95f847bde0d7e050735

MD5 hash:

296c6cf3e58c6b9b2b9245234d43d579

SHA1 hash:

ccb00ea905f0f0b6038664de0ebab0dba1739be5

Detections:

FormBook

win_formbook_w0

win_formbook_auto

win_formbook_g0

Formbook

Link:

https://www.unpac.me/results/335f36bd-1eb6-4c8c-bbaa-5b21414e4b56/

Parent samples :

d6f3187ea8a4c0cb9e263a665487060b5b14caf184a5343b2ed928b67d16a264
261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a
491951b8a84f49dd5a5c0bdea5370223a8ac834d47d53a526f628733325dd5c9
bd8a38d06603be4dafa830f2a5faa9f55b3e24cb692314908dc246adad8c8999

SH256 hash:

261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a

MD5 hash:

6b8beca73758b6a021ba6d613207073f

SHA1 hash:

b14b8a3983889d2641e13d9f0dbdef28ae5fc3d3

Detections:

AutoIT_Compiled

SUSP_Imphash_Mar23_3

Link:

https://www.unpac.me/results/335f36bd-1eb6-4c8c-bbaa-5b21414e4b56/

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/261455d96e87/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/261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a

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:	Formbook Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Formbook in memory
Reference:	internal research

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

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

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

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:	SUSP_Imphash_Mar23_3 Create hunting rule
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:	Windows_Trojan_Formbook Create hunting rule
Author:	@malgamy12

Rule name:	Windows_Trojan_Formbook_1112e116 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach

Rule name:	win_formbook_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.formbook.

Rule name:	win_formbook_w0 Create hunting rule
Author:	@malgamy12

File information

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

Malspam

Formbook

exe 261455d96e8709457efeddf1998e7c1f7e6c333551eea1ada7506ffae627003a

(this sample)

Delivery method

Distributed via e-mail attachment

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::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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