MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40813c2f162bcb604b25c21cf8d76db0a32d52f3d03547ae4ac4f8ee90961c65. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40813c2f162bcb604b25c21cf8d76db0a32d52f3d03547ae4ac4f8ee90961c65
SHA3-384 hash: 54e94ee1fa13444825f0958a15660d66b0a21828b5f771040c6cf0de73fbb935470e9345de473f4680a67654764ef53b
SHA1 hash: 750c7e500b65d8b084597d22bea4b7306dd1578b
MD5 hash: 601cac27ac8ae0d009d0c27ba9ded3dd
humanhash: fillet-fanta-cat-uniform
File name:Aviso de pago.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'315'328 bytes
First seen:2024-08-21 11:38:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep 24576:PqDEvCTbMWu7rQYlBQcBiT6rprG8aH8IWJYYTLL4DiCewwg:PTvC/MTQYxsWR7aHC6YHL4u
TLSH T14F55C00373C1C062FF9B92734B9AF6514ABC79660123A61F13981D7ABE701B1563E7A3
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
370
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Aviso de pago.exe
Verdict:
No threats detected
Analysis date:
2024-08-21 11:40:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3a261ff5-e55c-4b2c-84a8-581388bc9841

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Generic.33203615.28472.17882.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c5d19de7ff3f5a063bb23f
Tags:
Generic
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/66c5d1a2aa12eb10615efd55/reports/cba79329-748a-4f9a-b19b-f181308ae6c6/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/40813c2f162bcb604b25c21cf8d76db0a32d52f3d03547ae4ac4f8ee90961c65
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/860b506b-0b39-4955-8a60-6b203f6c0381
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
evad.troj
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1496557
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Found API chain indicative of sandbox detection
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/40813c2f162bcb604b25c21cf8d76db0a32d52f3d03547ae4ac4f8ee90961c65
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40813c2f162bcb604b25c21cf8d76db0a32d52f3d03547ae4ac4f8ee90961c65/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-08-15 21:25:53 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=icatylywfpfwaszfyioprv3nwcrs2uxt2a2uplskyt4o5eewdrsq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/240821-nrp9qazdrj/
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:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8c8a4ad4-c877-486f-acc1-f1b8fc31b321
Unpacked files
SH256 hash:
9d4fae81f22707a80b8622b711533f1452dbc84b9c82b36760e7ba9fab50c754
MD5 hash:
1cf1db47adaf79ecdea13c1edb79a9af
SHA1 hash:
36b014bfeaa036f11869bacb1a392864e2be5d66
Link:
https://www.unpac.me/results/b2d85bf3-8a5c-46d9-a294-54cda0840b0b/
SH256 hash:
c53f3e9a6a94ab73e0f5e23764df6f47bc6e670ec6f75140952210f4656f91a9
MD5 hash:
4a850dd0d1512fea2040fab40901c015
SHA1 hash:
bd22a95c160096a2f4392fcc517632a3697052de
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Link:
https://www.unpac.me/results/b2d85bf3-8a5c-46d9-a294-54cda0840b0b/
SH256 hash:
40813c2f162bcb604b25c21cf8d76db0a32d52f3d03547ae4ac4f8ee90961c65
MD5 hash:
601cac27ac8ae0d009d0c27ba9ded3dd
SHA1 hash:
750c7e500b65d8b084597d22bea4b7306dd1578b
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/b2d85bf3-8a5c-46d9-a294-54cda0840b0b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/40813c2f162b/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/40813c2f162bcb604b25c21cf8d76db0a32d52f3d03547ae4ac4f8ee90961c65

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:pe_detect_tls_callbacks
Create hunting rule

File information

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

Malspam

Formbook

Executable exe 40813c2f162bcb604b25c21cf8d76db0a32d52f3d03547ae4ac4f8ee90961c65

(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::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
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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