MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539. 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: 15


Intelligence 15 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539
SHA3-384 hash: a4a5e361196b8dd4618d59e37941ef96ac05b4e8ef67527d2d5ccb46cff0fb6d1709b87eb9dc6d15569aa1038a16193c
SHA1 hash: 9d55cead9cdcd487df37b4264f4a2483f19c8184
MD5 hash: 897ff2a936f11b8f74f56e0c835a2c43
humanhash: arizona-social-cardinal-juliet
File name:00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539
Download: download sample
Signature Formbook
Create hunting rule
File size:1'794'048 bytes
First seen:2025-01-10 14:32:45 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 49152:G20c++OCvkGs9Fa/IZ1g7yiu9SLYZgFIDRRAubt5M:ZB3vkJ9z1g7yx9ivUf
TLSH T1CA85E02273DDC360CB669173FF2AB7016E7B3C614630B95B2F940D7DA960162262D7A3
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10522/11/4)
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
170
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539
Verdict:
Malicious activity
Analysis date:
2025-01-10 19:59:31 UTC
Tags:
sinkhole expiro m0yv
Link:
https://app.any.run/tasks/55cf6ed7-b37d-4a8f-98fe-522221d33d8a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Expiro-9951780-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6781300f1e9cdec7dbbb7631
Tags:
autoit expiro emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Modifying an executable file
Creating a window
Launching a service
Creating a file in the %temp% directory
Searching for synchronization primitives
Creating a file in the Windows subdirectories
Modifying a system executable file
Launching a process
Loading a system driver
Connection attempt to an infection source
Modifying a system file
Using the Windows Management Instrumentation requests
Enabling autorun for a service
Query of malicious DNS domain
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Unauthorized injection to a system process
Sending an HTTP POST request to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script expiro explorer fingerprint hacktool keylogger lolbin microsoft_visual_cc msconfig packed packed packer_detected virus virut
Link:
https://www.filescan.io/uploads/67812fc372a72c6ee1c01d77/reports/899d0bac-2b30-4787-aaa9-c004f6226406/overview
Verdict:
Malicious
Labled as:
Virus/Expiro.q@expiro_x3
Link:
https://www.hybrid-analysis.com/sample/00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/aed8196c-f514-40ae-8c85-df3d94f66cca
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1588634
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
Drops executable to a common third party application directory
Found direct / indirect Syscall (likely to bypass EDR)
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Machine Learning detection for 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
Queues an APC in another process (thread injection)
Sigma detected: Suspicious Process Parents
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 1588634 Sample: 1SxKeB4u0c.exe Startdate: 11/01/2025 Architecture: WINDOWS Score: 100 40 www.soainsaat.xyz 2->40 42 www.duwixushx.xyz 2->42 44 16 other IPs or domains 2->44 56 Suricata IDS alerts for network traffic 2->56 58 Antivirus detection for URL or domain 2->58 60 Antivirus detection for dropped file 2->60 64 8 other signatures 2->64 10 1SxKeB4u0c.exe 3 2->10         started        15 alg.exe 2->15         started        17 armsvc.exe 2->17         started        signatures3 62 Performs DNS queries to domains with low reputation 42->62 process4 dnsIp5 46 ssbzmoy.biz 18.141.10.107, 49706, 80 AMAZON-02US United States 10->46 48 pywolwnvd.biz 54.244.188.177, 49705, 80 AMAZON-02US United States 10->48 34 C:\Windows\System32\alg.exe, PE32+ 10->34 dropped 36 C:\Windows\System32\AppVClient.exe, PE32+ 10->36 dropped 38 C:\Program Files (x86)\...\armsvc.exe, PE32 10->38 dropped 78 Binary is likely a compiled AutoIt script file 10->78 80 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->80 82 Writes to foreign memory regions 10->82 88 4 other signatures 10->88 19 svchost.exe 10->19         started        84 Antivirus detection for dropped file 15->84 86 Machine Learning detection for dropped file 15->86 file6 signatures7 process8 signatures9 66 Maps a DLL or memory area into another process 19->66 22 LbtMpScwNRqrVB.exe 19->22 injected process10 signatures11 68 Found direct / indirect Syscall (likely to bypass EDR) 22->68 25 bitsadmin.exe 13 22->25         started        process12 signatures13 70 Tries to steal Mail credentials (via file / registry access) 25->70 72 Tries to harvest and steal browser information (history, passwords, etc) 25->72 74 Modifies the context of a thread in another process (thread injection) 25->74 76 3 other signatures 25->76 28 LbtMpScwNRqrVB.exe 25->28 injected 32 firefox.exe 25->32         started        process14 dnsIp15 50 www.amayavp.xyz 185.27.134.144, 49727, 49728, 49729 WILDCARD-ASWildcardUKLimitedGB United Kingdom 28->50 52 www.xcvbj.asia 149.88.81.190, 49717, 49718, 49719 SAIC-ASUS United States 28->52 54 6 other IPs or domains 28->54 90 Found direct / indirect Syscall (likely to bypass EDR) 28->90 signatures16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539/
Threat name:
Win32.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2024-12-04 13:21:39 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ac52zws6z4wxsmr77penuthmrckpmv5recgjlhlmpl2mjyfggu4q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/250110-rww5lsxjes/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
AutoIT Executable
Drops file in System32 directory
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Verdict:
Malicious
Tags:
trojan Win.Malware.Expiro-9951780-0
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/bcc52133-9e82-41b7-9c2c-77834be0da7c
Unpacked files
SH256 hash:
2ad0626e7745c5e780b06a1c7e75ff30fff7e3c7173100bbb336744ff61eb93c
MD5 hash:
a992ed1e08ef4c7ad6d292fb3691e46a
SHA1 hash:
40e728fab023ad9d51629d70d464cb6834fcbb46
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b26a16fa-9261-483d-b307-f4241692cbf7/
Parent samples :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 hash:
00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539
MD5 hash:
897ff2a936f11b8f74f56e0c835a2c43
SHA1 hash:
9d55cead9cdcd487df37b4264f4a2483f19c8184
Link:
https://www.unpac.me/results/b26a16fa-9261-483d-b307-f4241692cbf7/
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/00bbacda5ecf2d79323ffbc8da4cec8894f657b1208c959d6c7af4c4e0a63539

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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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)
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:Windows_Generic_Threat_ebf62328
Create hunting rule
Author:Elastic Security
Rule name:win_m0yv_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.m0yv.

File information

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

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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
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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