MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55bd029815c42f74ed692dfcdd2589e0007f2fed7674fc978a9ab1ff37dee08f. 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: 19


Intelligence 19 IOCs YARA 17 File information Comments

SHA256 hash: 55bd029815c42f74ed692dfcdd2589e0007f2fed7674fc978a9ab1ff37dee08f
SHA3-384 hash: 22997ee066fb926eb267b8e424eb1d67cf7aacbfe04277e18726a1ea983a073d29d9f6ec62c88ab4ec3bae762483f0c7
SHA1 hash: 3d85cb3e845cfc899f709f42a73d8a58cf191005
MD5 hash: e82b088ccee815a2245fa3ed45322f83
humanhash: wisconsin-shade-steak-table
File name:56289008134.exe
Download: download sample
Signature Formbook
File size:1'211'392 bytes
First seen:2025-07-10 21:05:45 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:btb20pkaCqT5TBWgNQ7a7qSDdBJqtVmRHp6A:YVg5tQ7a7vDX15
TLSH T1D945C02373DD8365C3725273BA25B701AEBF782506A1F96B2FD4093DE920162521EB73
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 threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
39
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
56289008134.exe
Verdict:
Malicious activity
Analysis date:
2025-07-10 21:07:27 UTC
Tags:
auto-startup

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
autorun autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger microsoft_visual_cc obfuscated packed packed packer_detected
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Binary is likely a compiled AutoIt script file
Drops VBS files to the startup folder
Joe Sandbox ML detected suspicious sample
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1733628 Sample: 56289008134.exe Startdate: 11/07/2025 Architecture: WINDOWS Score: 100 49 www.syncgrant.xyz 2->49 51 www.mj222.xyz 2->51 53 7 other IPs or domains 2->53 61 Suricata IDS alerts for network traffic 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 Yara detected FormBook 2->65 69 4 other signatures 2->69 12 56289008134.exe 6 2->12         started        16 wscript.exe 1 2->16         started        signatures3 67 Performs DNS queries to domains with low reputation 51->67 process4 file5 47 C:\Users\user\AppData\...\prophetesses.exe, PE32 12->47 dropped 85 Binary is likely a compiled AutoIt script file 12->85 18 prophetesses.exe 3 12->18         started        87 Windows Scripting host queries suspicious COM object (likely to drop second stage) 16->87 22 prophetesses.exe 2 16->22         started        signatures6 process7 file8 45 C:\Users\user\AppData\...\prophetesses.vbs, data 18->45 dropped 71 Multi AV Scanner detection for dropped file 18->71 73 Binary is likely a compiled AutoIt script file 18->73 75 Drops VBS files to the startup folder 18->75 77 Switches to a custom stack to bypass stack traces 18->77 24 svchost.exe 18->24         started        79 Writes to foreign memory regions 22->79 81 Maps a DLL or memory area into another process 22->81 27 svchost.exe 22->27         started        signatures9 process10 signatures11 83 Maps a DLL or memory area into another process 24->83 29 F1YxLwa3Mj1Xd.exe 24->29 injected process12 process13 31 cmd.exe 13 29->31         started        34 autochk.exe 29->34         started        signatures14 89 Tries to steal Mail credentials (via file / registry access) 31->89 91 Tries to harvest and steal browser information (history, passwords, etc) 31->91 93 Modifies the context of a thread in another process (thread injection) 31->93 95 3 other signatures 31->95 36 wXqKAWwGKcyiVS.exe 31->36 injected 39 chrome.exe 31->39         started        41 firefox.exe 31->41         started        process15 dnsIp16 55 www.techmarket.news 75.2.103.23, 49710, 49711, 49712 AMAZON-02US United States 36->55 57 www.syncgrant.xyz 76.223.54.146, 49692, 80 AMAZON-02US United States 36->57 59 4 other IPs or domains 36->59 43 WerFault.exe 4 39->43         started        process17
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) Suspect Win 32 Exe x86
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-07-10 12:41:15 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_036 autoit
Similar samples:
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Formbook payload
Formbook
Formbook family
Unpacked files
SH256 hash:
55bd029815c42f74ed692dfcdd2589e0007f2fed7674fc978a9ab1ff37dee08f
MD5 hash:
e82b088ccee815a2245fa3ed45322f83
SHA1 hash:
3d85cb3e845cfc899f709f42a73d8a58cf191005
SH256 hash:
069bb99c7665454ecc6f0188fe8b739809958103fafeccbd4ad8f6504f9898f1
MD5 hash:
4352ddfb737b9fb8465f79858b5bb8b4
SHA1 hash:
0dec5ad3a6426ca5c1361ab859372eb63ddaec83
SH256 hash:
8cdae851ab52139fbbd26d276181f8b1167eae5b201c3320a84b91745d8c8fcd
MD5 hash:
27385a5f6e00875e271fb8ad5970be56
SHA1 hash:
df1e98bc248d504f0abf49ba1fd87a0b15af41e4
Detections:
win_formbook_g0
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:YahLover
Author:Kevin Falcoz
Description:YahLover

File information


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

Malspam

Formbook

Executable exe 55bd029815c42f74ed692dfcdd2589e0007f2fed7674fc978a9ab1ff37dee08f

(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
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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