MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb. 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: 13


Intelligence 13 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb
SHA3-384 hash: b5518d394d782a26d475049091bae7d9c8568f213575f7ce02484ba3c7cd1f241c9ab0ea04f5682181f2745c88b814f1
SHA1 hash: 248ceef6e48d124f6f0f3ddeeae51623460a6494
MD5 hash: 504903049be67f9b2b855465b665aac4
humanhash: indigo-arkansas-robin-quebec
File name:a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb
Download: download sample
Signature Formbook
Create hunting rule
File size:1'192'448 bytes
First seen:2025-07-07 15:13:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:itb20pkaCqT5TBWgNQ7a+HZ01lJSTtR7Len6A:vVg5tQ7a+OUTbQ5
Threatray 2'400 similar samples on MalwareBazaar
TLSH T11C45C01373DD8361C3B25273BA657B41BEBF782506A5F96B2FD8093DE820122521E673
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
28
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/13270/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686be463c9eb9747376776c4
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
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/a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-06-29 00:25:00 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ui5322y3bkhliobxndydknqxrih7wr2jezerunb5g42zp3srnhfq._file
Verdict:
malicious
Label(s):
autoit
Create hunting rule
Similar samples:
165532385f375309604f0d2a75cdfb9a2034ff0906c99ca4a4e2633086d30da1
Formbook
4222b0dd41394779d3041e87b34d30735418a686d359de41344726f6d9bb13ad
Formbook
491ac50c3138e38f8aa97ac5760292b16236bd1cad7cff24631d066b5d47d200
Formbook
61d6bc63a0a6db062dd3f42a6ae0dec0a8990d445200660ce6346047128c2cc3
Formbook
681d856fffd8a6f16f3b0f62f6aad5cd1adb042be504b3e9dcbc5ed469d7450f
Formbook
a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb
Formbook
d2e4942924fa6f218f70772eefd5ef57ae369799ba23cd70913f4d0b8fd6da94
Formbook
df5b8d6a7a811ac7627a8dc7be72f00b5b335a0aff5bdeaaea315197866b0050
Formbook
error
Formbook
f10a61792867b7b2d84daa851f8d24169a96cb70b55e09931a7ed2c01853634f
Formbook
+ 2'390 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250707-smh23atns3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c8285ac3-44a0-4506-a2e5-db7bb472d507
Unpacked files
SH256 hash:
a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb
MD5 hash:
504903049be67f9b2b855465b665aac4
SHA1 hash:
248ceef6e48d124f6f0f3ddeeae51623460a6494
Link:
https://www.unpac.me/results/1e0f23c9-6fd2-43ae-ac7f-4b4dddea38c1/
SH256 hash:
3966bbf8760c96a49f099033c87156bb0fc054d8c40f8eb5f23cbcbe5550c579
MD5 hash:
3d00da55f11315d426be86e41a15ed69
SHA1 hash:
30dbe8fd36d65b324f98911e8e9dd0e9b9199a3c
Link:
https://www.unpac.me/results/1e0f23c9-6fd2-43ae-ac7f-4b4dddea38c1/
SH256 hash:
6cc9afd1660e5b9df392a7c28dc4d46e6283d09308dbd00945d78987b00d9819
MD5 hash:
666714cf3f9cf102ed336fb0596ecc71
SHA1 hash:
2fb94a87d95f5151e18b9405c4e604c4f17d2c1e
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/1e0f23c9-6fd2-43ae-ac7f-4b4dddea38c1/
Parent samples :
0471da7402648e90667b5c06c6f20e58be2043ce1678f9802f870a93300ac10f
b708155f8a66c0542f73d26155c6dff36ec4d180aaa05f5272a409f2c7a98e89
dca24d88f30950f9fdcc2eaf7708a83400db29f082afee8632fe6b10b07e0d59
f2146a2fc8f06f2ad134c3ca468ecf0206cefcad25920638b9aeefb57832f4dd
a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb
dd56ed5cf4a23ae82f28423890e13b64e12b130088fe4fb1e71ecf491cfacf4f
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/a23bbd6b1b0a8eb4383768f03536178a0ffb474926491a343d373597ee5169cb

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/13270/

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::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
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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