MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 786af95450d57e70142f2ba66c226a616054e4e6c0dc6bfe9034441e68db1bd2. 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: 14


Intelligence 14 IOCs YARA 7 File information Comments

SHA256 hash: 786af95450d57e70142f2ba66c226a616054e4e6c0dc6bfe9034441e68db1bd2
SHA3-384 hash: 9d986e4a31ad157d660b20c0b1305133338328eb75f2182d08758f939d9b45b896f97d0cb19afb7c26bbaca7ca238b96
SHA1 hash: bf46461984cc2e237e537ac6a2d0e6c5e972ff88
MD5 hash: 1c6c7f680ac31200534fa29468f30e67
humanhash: don-whiskey-salami-mars
File name:Payment advice_pdf.exe
Download: download sample
Signature Formbook
File size:1'163'776 bytes
First seen:2025-03-31 09:21:37 UTC
Last seen:2025-04-02 07:50:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:Cu6J33O0c+JY5UZ+XC0kGso6FaYNn87s+6tPWOmrKWY:ku0c++OCvkGs9FaYNi6oY
TLSH T1D235BE2273DDC360CB669173BF6AB7016EBF7C610630B95B2F980D7DA950162122D7A3
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
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 :
2
# of downloads :
440
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment advice_pdf.exe
Verdict:
No threats detected
Analysis date:
2025-03-31 09:24:00 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
underscore 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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger masquerade microsoft_visual_cc packed packed packer_detected
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
Initial sample is a PE file and has a suspicious name
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
Performs DNS queries to domains with low reputation
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1652667 Sample: Payment advice_pdf.exe Startdate: 31/03/2025 Architecture: WINDOWS Score: 100 31 www.mm018.xyz 2->31 33 www.puray.life 2->33 35 9 other IPs or domains 2->35 39 Suricata IDS alerts for network traffic 2->39 41 Antivirus detection for URL or domain 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 47 6 other signatures 2->47 10 Payment advice_pdf.exe 4 2->10         started        signatures3 45 Performs DNS queries to domains with low reputation 31->45 process4 signatures5 57 Binary is likely a compiled AutoIt script file 10->57 59 Maps a DLL or memory area into another process 10->59 13 svchost.exe 10->13         started        process6 signatures7 61 Maps a DLL or memory area into another process 13->61 16 5zawU4yDy9Y0KzLFPZdViT.exe 13->16 injected process8 dnsIp9 25 www.puray.life 159.198.64.72, 49740, 49741, 49742 CAT-IDC-4BYTENET-AS-APCATTELECOMPublicCompanyLtdCATT United States 16->25 27 www.eja-online.org 217.160.0.250, 49732, 49733, 49734 ONEANDONE-ASBrauerstrasse48DE Germany 16->27 29 4 other IPs or domains 16->29 37 Found direct / indirect Syscall (likely to bypass EDR) 16->37 20 at.exe 13 16->20         started        signatures10 process11 signatures12 49 Tries to steal Mail credentials (via file / registry access) 20->49 51 Tries to harvest and steal browser information (history, passwords, etc) 20->51 53 Modifies the context of a thread in another process (thread injection) 20->53 55 2 other signatures 20->55 23 firefox.exe 20->23         started        process13
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2025-03-26 08:21:48 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unc_loader_036 formbook
Similar samples:
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
trojan
YARA:
SUSP_Imphash_Mar23_3
Unpacked files
SH256 hash:
786af95450d57e70142f2ba66c226a616054e4e6c0dc6bfe9034441e68db1bd2
MD5 hash:
1c6c7f680ac31200534fa29468f30e67
SHA1 hash:
bf46461984cc2e237e537ac6a2d0e6c5e972ff88
SH256 hash:
4ca2566ccf1f9b40588d0e87df128d9f6ad660ae83a9775624ce2e4a8cc46562
MD5 hash:
cbae68048378f4791a0363c5fd221a7a
SHA1 hash:
b15d066fdb5f934a6ecda5678d74f4f7f2a48e17
SH256 hash:
8bd80cb27ebd7a37459dfe81426ceca847ffbde57511d09a96d940cea6a49fe6
MD5 hash:
c9aab55e83def7d503c825388cb0e543
SHA1 hash:
ae3e67bf3cdc03f58598b25fe59e36e63570ec57
SH256 hash:
91f300b562ed813749fe2dbadfea889c6bc13df83d595034829e046cc01fc060
MD5 hash:
48f5f23c84ed28d32d2386c9a8c586be
SHA1 hash:
4bf7dc565301968435497857786229c85ee1d4d8
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:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_Imphash_Mar23_3
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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

Malspam

Formbook

Executable exe 786af95450d57e70142f2ba66c226a616054e4e6c0dc6bfe9034441e68db1bd2

(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::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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