MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0131811280dff33665c7a27acc0e25ac0a09839188a8c0a6de15ca7be57dc7bf. 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 7 File information Comments
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SHA256 hash: 0131811280dff33665c7a27acc0e25ac0a09839188a8c0a6de15ca7be57dc7bf
SHA3-384 hash: d22ebb75bf23b18641c1f0dbbaf2df9fb467bef4594850c08c2624647bf47da1fe371bd5d2d8f0482558233480aeef3e
SHA1 hash: 6c55a14b0d4552effb07df1587d6f1b25039bdd9
MD5 hash: f8d070f9760e0dd70a83c95b24bb15df
humanhash: echo-delaware-grey-nevada
File name:Aviso de transfer.exe
Download: download sample
Signature Formbook
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File size:1'200'128 bytes
First seen:2025-03-31 19:00:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:Eu6J33O0c+JY5UZ+XC0kGso6FaQ35SSIM97KTLsBauWY:+u0c++OCvkGs9FaQoS99OMBeY
TLSH T14645CE2273DDC360CB669173BF2AB7016EBF3C614630B95B2F980D7DA950162162D7A3
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 :
1
# of downloads :
4'227
Origin country :
CH CH
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.vh.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67eae829cfd0a37f830b0a4e
Tags:
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:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/0131811280dff33665c7a27acc0e25ac0a09839188a8c0a6de15ca7be57dc7bf
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/16b7f102-e6dd-4317-a17f-70222601118f
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1653159
Signature
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
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 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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1653159 Sample: Aviso de transfer.exe Startdate: 31/03/2025 Architecture: WINDOWS Score: 100 31 www.jicode.xyz 2->31 33 www.jethashrate.xyz 2->33 35 13 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 Multi AV Scanner detection for submitted file 2->43 47 4 other signatures 2->47 10 Aviso de transfer.exe 2 2->10         started        signatures3 45 Performs DNS queries to domains with low reputation 33->45 process4 signatures5 57 Binary is likely a compiled AutoIt script file 10->57 59 Writes to foreign memory regions 10->59 61 Maps a DLL or memory area into another process 10->61 13 svchost.exe 10->13         started        process6 signatures7 63 Maps a DLL or memory area into another process 13->63 16 l3RWQMcsvb5YRZdwvU2.exe 13->16 injected process8 dnsIp9 25 www.futuw.website 67.223.117.189, 49742, 49743, 49744 VIMRO-AS15189US United States 16->25 27 www.praxis-it.nrw 88.198.219.246, 49746, 49747, 49748 HETZNER-ASDE Germany 16->27 29 7 other IPs or domains 16->29 37 Found direct / indirect Syscall (likely to bypass EDR) 16->37 20 mcbuilder.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
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0131811280dff33665c7a27acc0e25ac0a09839188a8c0a6de15ca7be57dc7bf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0131811280dff33665c7a27acc0e25ac0a09839188a8c0a6de15ca7be57dc7bf/
Threat name:
Win32.Trojan.AZORult
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Status:
Malicious
First seen:
2025-03-31 12:12:46 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aeyyceua37ztmzohuj5mydrfvqfata4rrcumbjw6cxfhxzl5y67q._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250331-xn824aynt7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
trojan
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/471a8c7d-8059-4d59-994c-9d74cd183d17
Unpacked files
SH256 hash:
0131811280dff33665c7a27acc0e25ac0a09839188a8c0a6de15ca7be57dc7bf
MD5 hash:
f8d070f9760e0dd70a83c95b24bb15df
SHA1 hash:
6c55a14b0d4552effb07df1587d6f1b25039bdd9
Link:
https://www.unpac.me/results/a8905bcd-379b-4981-b253-25177bc238ad/
SH256 hash:
1eda886bfb6921b8a2014e795cd365cc969f2672ab54bd27c63868a2a4533b2c
MD5 hash:
744fa978f15ce787bead8de33809b7be
SHA1 hash:
7eb1469d33628b5563bf82447ff76d7d278c3c6a
Link:
https://www.unpac.me/results/a8905bcd-379b-4981-b253-25177bc238ad/
SH256 hash:
f34dda64b0b021a4481b109c92327c4f674e74567026f233b00eb848626f2249
MD5 hash:
eef001d570526050775a5be9f3213882
SHA1 hash:
005a028e1bd83793d957745647a89a2c398edef8
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/a8905bcd-379b-4981-b253-25177bc238ad/
Parent samples :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 family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0131811280df/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/0131811280dff33665c7a27acc0e25ac0a09839188a8c0a6de15ca7be57dc7bf

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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 0131811280dff33665c7a27acc0e25ac0a09839188a8c0a6de15ca7be57dc7bf

(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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