MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23. 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


Expiro


Vendor detections: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23
SHA3-384 hash: 782e31f7477f24e60a5a1c043c37140c6ced3cdb2988edfd539a9191db52636d96d0a18fdeece2c4b17280f5c40d19ae
SHA1 hash: 248b096dcb924cede55a4240e89797e33a022ad6
MD5 hash: 6f03dcbbdc756bc8c46e7ff6381707e4
humanhash: fanta-harry-mike-arizona
File name:TENDER Qatar Imports CorporationsLTCASTK654824.B26_PDF_.exe
Download: download sample
Signature Expiro
Create hunting rule
File size:1'764'352 bytes
First seen:2024-09-03 06:11:09 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:uh+5kldoPK8YaMyiM1PPD8LNiXicJFFRGNzj3:nWcPK8vbY7wRGpj3
Threatray 7 similar samples on MalwareBazaar
TLSH T1FD85D00273D1C036FFAB92739B6AF60556BC7D254123852F13982DB9B9702B2273D663
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 lowmal3
Tags:exe Expiro

Intelligence

File Origin
# of uploads :
1
# of downloads :
414
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TENDER Qatar Imports CorporationsLTCASTK654824.B26_PDF_.exe
Verdict:
Malicious activity
Analysis date:
2024-09-03 06:14:28 UTC
Tags:
sinkhole expiro m0yv
Link:
https://app.any.run/tasks/47643171-abfe-4d2c-a5da-b34c96d066c6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Expiro.153.7237.29824.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d6a8b7f3d7ccf99f8fac3f
Tags:
Network Stealth Infector
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a window
Modifying an executable file
Creating a file in the %temp% directory
Launching a service
Searching for synchronization primitives
Modifying a system executable file
Launching a process
Loading a system driver
Creating a file in the system32 subdirectories
Modifying a system file
Creating a file in the Windows subdirectories
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
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/66d6a8b45e55925279cabb41/reports/42894481-645c-468f-abd5-92fa11c589dd/overview
Verdict:
Malicious
Labled as:
Expiro.Generic
Link:
https://www.hybrid-analysis.com/sample/56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23
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:
Expiro
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a41c61a8-bf82-486e-ac82-74d90097b3ea
Result
Threat name:
FormBook, LummaC Stealer
Create hunting rule
Detection:
malicious
Classification:
spre.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1503224
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary is likely a compiled AutoIt script file
Contains functionality to behave differently if execute on a Russian/Kazak computer
Creates files inside the volume driver (system volume information)
Drops executable to a common third party application directory
Found direct / indirect Syscall (likely to bypass EDR)
Found evasive API chain (may stop execution after checking computer name)
Found evasive API chain (may stop execution after checking volume information)
Infects executable files (exe, dll, sys, html)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped 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 domain / URL
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Queries random domain names (often used to prevent blacklisting and sinkholes)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1503224 Sample: TENDER Qatar Imports Corpor... Startdate: 03/09/2024 Architecture: WINDOWS Score: 100 36 zyiexezl.biz 2->36 38 zrlssa.biz 2->38 40 126 other IPs or domains 2->40 52 Multi AV Scanner detection for domain / URL 2->52 54 Suricata IDS alerts for network traffic 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 16 other signatures 2->58 7 armsvc.exe 1 2->7         started        12 TENDER Qatar Imports CorporationsLTCASTK654824.B26_PDF_.exe 5 2->12         started        14 elevation_service.exe 2->14         started        16 20 other processes 2->16 signatures3 process4 dnsIp5 42 xlfhhhm.biz 47.129.31.212, 49733, 49767, 49776 ESAMARA-ASRU Canada 7->42 44 zyiexezl.biz 18.208.156.248, 49742, 49756, 49761 AMAZON-AESUS United States 7->44 50 14 other IPs or domains 7->50 20 C:\Windows\System32\wbengine.exe, PE32+ 7->20 dropped 22 C:\Windows\System32\wbem\WmiApSrv.exe, PE32+ 7->22 dropped 24 C:\Windows\System32\vds.exe, PE32+ 7->24 dropped 34 147 other malicious files 7->34 dropped 60 Drops executable to a common third party application directory 7->60 62 Infects executable files (exe, dll, sys, html) 7->62 46 wluwplyh.biz 18.141.10.107, 49712, 49713, 49719 AMAZON-02US United States 12->46 48 cvgrf.biz 54.244.188.177, 49710, 49711, 49714 AMAZON-02US United States 12->48 26 C:\Windows\System32\alg.exe, PE32+ 12->26 dropped 28 DiagnosticsHub.Sta...llector.Service.exe, PE32+ 12->28 dropped 30 C:\Windows\System32\AppVClient.exe, PE32+ 12->30 dropped 32 C:\Program Files (x86)\...\armsvc.exe, PE32 12->32 dropped 64 Binary is likely a compiled AutoIt script file 12->64 66 Writes to foreign memory regions 12->66 68 Maps a DLL or memory area into another process 12->68 18 svchost.exe 12->18         started        70 Found direct / indirect Syscall (likely to bypass EDR) 14->70 72 Creates files inside the volume driver (system volume information) 16->72 74 Contains functionality to behave differently if execute on a Russian/Kazak computer 16->74 file6 signatures7 process8
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23/
Threat name:
Win32.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2024-09-02 17:23:58 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k3cighuxtlkjjnfwqshxsoixaqwvpq4klfqdfms7majklqr7lyrq._file
Verdict:
malicious
Similar samples:
3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b
Expiro
452d7f2afb6fbb3afa307419983194bd68e9a577fb47a02f6ba36c881f13c10d
Expiro
623ba3741a6f9e87aef1557d2373cdb0632b7357ba810b238836f99f09f80d92
Expiro
8321c0b6abc15f9feeef5021f4e37c4110e629cb64f7b0861b481e23ba86d54a
Expiro
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/240903-gx7bvsyhnl/
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 SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
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:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8be96f27-5705-4c04-a0a5-8785af86d617
Unpacked files
SH256 hash:
a82cdd53be224fda724f116e50a7173efbfe60c00c8bb3892a2f5913432edea9
MD5 hash:
f8e121f952b0768e164a4bdf58365716
SHA1 hash:
35f89d73a409dadba9498397a0114c2dc1cd4394
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Link:
https://www.unpac.me/results/b537a301-f4c8-40ed-9432-5dc5af6cab28/
Parent samples :
1d5883ccf0b49e1e58eff35dacddc49d34cd8a73444cc69498fcbca9b39de4f4
56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23
d28abef1785c790448448e450d61c686d8778602f789830e41a92694b4439c19
SH256 hash:
56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23
MD5 hash:
6f03dcbbdc756bc8c46e7ff6381707e4
SHA1 hash:
248b096dcb924cede55a4240e89797e33a022ad6
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/b537a301-f4c8-40ed-9432-5dc5af6cab28/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Expiro
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23

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

Expiro

Executable exe 56c4831e979ad494b4b6848f793917042d57c38a596032b25f6012a5c23f5e23

(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
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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