MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b
SHA3-384 hash: 0a8ebcefb77ff9a1df213b882930bcc399813f2717b6b67fa3bda1e895a69051badd7b4110b0fbd0bb9723deca555791
SHA1 hash: 7c1b006a854206ad3c25033c6186cf79ce76a5e6
MD5 hash: 9f1b00ad5bc72aa01805374584731e59
humanhash: montana-shade-eleven-tango
File name:rfile-4895489985-swift-pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'184'768 bytes
First seen:2024-10-09 01:30:07 UTC
Last seen:2024-10-09 06:59:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:vCdxte/80jYLT3U1jfsWa0sMYngxfSMnPRjnQ:uw80cTsjkWa0sRngYMnW
TLSH T15345BE2263DDC371CB669173BF6A77016EBF7C614630B85B2F880D7DA950161222DBA3
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
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 :
2
# of downloads :
394
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rfile-4895489985-swift-pdf.exe
Verdict:
No threats detected
Analysis date:
2024-10-09 01:31:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/bc9fce59-6991-4545-87d2-44fabdccc083

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.19347.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6705dca2a69182ddbe5d1571
Tags:
Underscore Autoit Emotet
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/6705dcd84d903f1f7eef3ee7/reports/4926df69-7025-4980-bcb1-3b4692a92071/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b
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:
Unknown
Link:
https://analyze.intezer.com/analyses/77d939b6-4b3d-4ca7-9766-235456db0de4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1529543
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
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/bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-10-08 23:49:03 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xsva5x3rri5zkc646l6tkragnmzdjtm3g57wqtonsurkmjei2j5q._file
Verdict:
malicious
Label(s):
formbook
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unknown_loader_036
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Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/241009-bxdfwstana/
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:
trojan
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/1a76bb3b-3037-436a-9aa7-dcda63c6cc97
Unpacked files
SH256 hash:
a54149bfcba2a36198a546c8c213802b13a6052012009ef1aef382fc1c03dd0e
MD5 hash:
231860558a770a2591b00624e2349945
SHA1 hash:
f6f82b92f6163b254f70d3dca9e9cc1b6ca47ae3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/666cc676-d493-48bd-bc8b-b96008001fa5/
Parent samples :
bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b
4c95f76c3a14f1c44514fbb969865bc95d34c22c01ffc78aedd02b6ce9f46b0c
96a5dffe8d545b87cd9038bc05277e2694e01062535c5ef81d380138a20bc652
75fd296deb644469cccf36746b126ffbba22d0f5bb3edfc2a4874de3078914fc
SH256 hash:
f3e947bcd9a8b9525a79851071c1f97ee18640d49a93f04a22d5c780aea7b713
MD5 hash:
aaf46e71d8a7dc8891317b341343c3c6
SHA1 hash:
ff033ea87302e254535904e825046985e40c2719
Link:
https://www.unpac.me/results/666cc676-d493-48bd-bc8b-b96008001fa5/
SH256 hash:
bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b
MD5 hash:
9f1b00ad5bc72aa01805374584731e59
SHA1 hash:
7c1b006a854206ad3c25033c6186cf79ce76a5e6
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/666cc676-d493-48bd-bc8b-b96008001fa5/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bcaa0edf718a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b

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:SUSP_Imphash_Mar23_3
Create hunting rule
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

File information

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

Malspam

Formbook

Executable exe bcaa0edf718a3b950bdcf2fd3544066b3234cd9b377f684dcd9522a62488d27b

(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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