MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf. 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: 16


Intelligence 16 IOCs YARA 21 File information Comments
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SHA256 hash: 3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf
SHA3-384 hash: 034e6fa06b8a847aed7c41893d2d53b48d4bc42cac43cc6cafcab5de89cec7c5f0c8fb92e60dee0efe60c655f7965ccd
SHA1 hash: 1fc14c22eb559ae15e0642ed913aa1b93d6f3312
MD5 hash: 15457d011dab88622087b56142ee22d3
humanhash: carpet-india-florida-aspen
File name:fileANS.exe
Download: download sample
Signature Formbook
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File size:1'081'856 bytes
First seen:2024-05-14 08:12:11 UTC
Last seen:2024-05-14 09:26:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:YAHnh+eWsN3skA4RV1Hom2KXMmHawvDvPYknWte5:fh+ZkldoPK8YawrXYaWu
TLSH T18235AD0273D5C036FFAB92739B6AF60196BD79254123852F13982DB9BC701B1273E663
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)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
307
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf.exe
Verdict:
Malicious activity
Analysis date:
2024-05-14 09:25:11 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/93ac9c12-3794-4a62-aa30-746c90f554e7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Trojan-Stealer.FormBook.S73JTR.13434.7866.UNOFFICIAL
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Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Creating a window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0dccc8d4-0b36-421c-8939-524b155aaa56
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1441176
Signature
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1441176 Sample: fileANS.exe Startdate: 14/05/2024 Architecture: WINDOWS Score: 100 33 www.vertexoffice.com 2->33 35 www.steam.help 2->35 37 15 other IPs or domains 2->37 39 Snort IDS alert for network traffic 2->39 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 7 other signatures 2->45 11 fileANS.exe 4 2->11         started        signatures3 process4 signatures5 53 Binary is likely a compiled AutoIt script file 11->53 55 Writes to foreign memory regions 11->55 57 Maps a DLL or memory area into another process 11->57 14 svchost.exe 11->14         started        process6 signatures7 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 2 other signatures 14->65 17 explorer.exe 91 1 14->17 injected process8 dnsIp9 27 www.creditscorewizards.com 45.43.211.76, 49712, 80 QUICKPACKETUS United States 17->27 29 pachecoarquitectos.com 162.241.2.167, 49710, 80 OIS1US United States 17->29 31 2 other IPs or domains 17->31 20 wscript.exe 17->20         started        process10 signatures11 47 Modifies the context of a thread in another process (thread injection) 20->47 49 Maps a DLL or memory area into another process 20->49 51 Tries to detect virtualization through RDTSC time measurements 20->51 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf/
Threat name:
Win32.Trojan.Strab
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Status:
Malicious
First seen:
2024-05-14 00:23:11 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=h76nsxgwxvyx4q3rcb3altnyi6erdehk4br5z52b3oxjxuksr6xq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:ba94 rat spyware stealer trojan
Link:
https://tria.ge/reports/240514-j4earsgc9z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
AutoIT Executable
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
1bc7f166305ca7a262df8aa936d6357b771d66389292ca37149e196cf63081ae
MD5 hash:
710cceab44fd956d74ecd65f4c5d0aaf
SHA1 hash:
f99bbfe97158822c1391e578eb842efaecbc0cd1
Detections:
Formbook
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Link:
https://www.unpac.me/results/3cfef8cd-eade-489e-b1cd-d6ba6142b605/
Parent samples :
1baa49adfc29b9c617faf3d22a5f96cdd09f5e4f40ff311e310eebbba0b5b632
9aeee1a70ae929e15e376532efa734d1a7dd5c0b0c814c3e620dcfe68e7baa96
3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf
SH256 hash:
3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf
MD5 hash:
15457d011dab88622087b56142ee22d3
SHA1 hash:
1fc14c22eb559ae15e0642ed913aa1b93d6f3312
Detections:
AutoIT_Compiled
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SUSP_Imphash_Mar23_3
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Link:
https://www.unpac.me/results/3cfef8cd-eade-489e-b1cd-d6ba6142b605/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3ffcd95cd6bd/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/3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf

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
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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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:Formbook
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Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:maldoc_find_kernel32_base_method_1
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Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
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Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:pe_no_import_table
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Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SUSP_Imphash_Mar23_3
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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:Windows_Trojan_Formbook
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Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
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Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
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Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe 3ffcd95cd6bd717e4371107605cdb847891190eae063dcf741dbae9bd1528faf

(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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