MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 043ac7293202b1142c850106e891c5580c76403bfb84d35d11e831d9299e3046. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 043ac7293202b1142c850106e891c5580c76403bfb84d35d11e831d9299e3046
SHA3-384 hash: 96635b509b59a5b7c3cf59ac68df82078da7cfc8a2d0e1067dac55dcd49dcb678a4935b57c022f3b156c04274a84b955
SHA1 hash: 454af3a45f486390fea2e2a1d7bdb4f15c0a35e7
MD5 hash: 512dfb2af6bef3005f2bc07aaab78174
humanhash: finch-florida-virginia-spaghetti
File name:SecuriteInfo.com.Heur.15150.29656
Download: download sample
Signature Formbook
Create hunting rule
File size:1'191'936 bytes
First seen:2025-06-30 18:42:49 UTC
Last seen:2025-06-30 19:45:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0b768923437678ce375719e30b21693e (143 x Formbook, 25 x MassLogger, 22 x SnakeKeylogger)
ssdeep 24576:I5EmXFtKaL4/oFe5T9yyXYfP1ijXda6RHlK3Dj92x7f:IPVt/LZeJbInQRa6be92
TLSH T11145BF0273D1D062FFAB92334B5AF6215BBC79260123A61F13981DB9BD705B1463E7A3
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 SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
440
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
main.exe
Verdict:
Malicious activity
Analysis date:
2025-06-30 18:49:29 UTC
Tags:
possible-phishing python github loader remcos rat remote auto generic meterpreter backdoor payload metasploit dcrat asyncrat lumma stealer nanocore masslogger networm amus neshta modiloader dbatloader koiloader formbook purelogs purecrypter phorpiex aurotunstealer pyinstaller redline njrat amadey botnet resolverrat evasion metastealer bladabindi phishing miner agenttesla vidar quasar clipper diamotrix snake keylogger coinminer azorult aurotun screenconnect rmm-tool rdp arkeistealer donutloader loki ransomware stealerium diamotrixclipper pythonstealer koistealer koi
Link:
https://app.any.run/tasks/74464f4c-af67-4b69-b123-28face623f07

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/11711/
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6862dac537c343677947e3f4
Tags:
phishing 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
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 anti-debug autoit compiled-script entropy fingerprint keylogger microsoft_visual_cc obfuscated packed packed
Link:
https://www.filescan.io/uploads/6862dad37423ff017c37a187/reports/39314a3d-802d-4398-bc6d-5867fe919cb0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/043ac7293202b1142c850106e891c5580c76403bfb84d35d11e831d9299e3046
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/974b7f7e-9c08-4e28-8043-38329aaeef44
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/043ac7293202b1142c850106e891c5580c76403bfb84d35d11e831d9299e3046
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/512dfb2af6bef3005f2bc07aaab78174
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/043ac7293202b1142c850106e891c5580c76403bfb84d35d11e831d9299e3046/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aq5mokjsakyrilefaedoreoflaghmqb37ocngxir5ay5skm6gbda._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_036
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ko23 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250630-xc1lkstqx2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f5117acb-e7e5-463b-ab5b-fc065870668f
Unpacked files
SH256 hash:
043ac7293202b1142c850106e891c5580c76403bfb84d35d11e831d9299e3046
MD5 hash:
512dfb2af6bef3005f2bc07aaab78174
SHA1 hash:
454af3a45f486390fea2e2a1d7bdb4f15c0a35e7
Link:
https://www.unpac.me/results/24bb4ddf-9009-4d12-9155-3eb6be4b0612/
SH256 hash:
6811d84fbef711570cac6f495cab0a002f6f852b65a685c08434b6f13bb2660c
MD5 hash:
0a1c277e623d64e2043090ba692865f7
SHA1 hash:
3f4fd82fb1bf8406ac3e4fdff186c6e0bd8eb994
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/24bb4ddf-9009-4d12-9155-3eb6be4b0612/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/043ac7293202/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/043ac7293202b1142c850106e891c5580c76403bfb84d35d11e831d9299e3046

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

Web download

Formbook

Executable exe 043ac7293202b1142c850106e891c5580c76403bfb84d35d11e831d9299e3046

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3571715/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/11711/

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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