MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b
SHA3-384 hash: 19c3f94c5fe2a64862a1808f0077ff78b9527db167582aabd331e25586b756bf02f43fc6a1185f70566718a181a07caa
SHA1 hash: 40491fd9c14fccc77de24649566eb103a2663579
MD5 hash: f44b188e4d8e67d11714d3b3726bc764
humanhash: echo-twenty-undress-dakota
File name:3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b
Download: download sample
Signature Expiro
Create hunting rule
File size:719'872 bytes
First seen:2024-07-18 12:22:03 UTC
Last seen:2024-07-24 13:13:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c6ca57d8b4ca36e8ffb0550836159034 (1 x Expiro)
ssdeep 12288:4CKHJx523hlPr9SsFNHsyT1C2y7FdTuZoh1FW2qNcWVHH67QwE8iso:4CK4DPrcKNHsyT1C24RuZ01FW1cwWDF
TLSH T1E8E4022AB3D1F8B6F15307716C23A6B1B2BBBC714C64D607A7246FCD5830255DC2A92B
TrID 37.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
20.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
12.7% (.EXE) Win64 Executable (generic) (10523/12/4)
7.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 00ccccc4ccd4d400 (1 x Expiro)
Reporter JAMESWT_WT
Tags:exe Expiro przvgke-biz

Intelligence

File Origin
# of uploads :
3
# of downloads :
369
Origin country :
IT IT
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win32.Expiro.153.2717.6773.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669908f16ac935d7e8db8ded
Tags:
Network Static Stealth Expiro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Modifying an executable file
Launching a service
Creating a window
Searching for synchronization primitives
Creating a file in the Windows subdirectories
Modifying a system executable file
Launching a process
Connection attempt to an infection source
Loading a system driver
Modifying a system file
Using the Windows Management Instrumentation requests
Changing a file
Enabling autorun for a service
Query of malicious DNS domain
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Sending an HTTP POST request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expiro fingerprint microsoft_visual_cc packed virus virut
Link:
https://www.filescan.io/uploads/669908f17b9add553ed6f1aa/reports/93669474-2d6d-4de6-8219-74fe7a44c19f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b
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/0f4feff6-518a-4244-9edb-cd82d47a40a1
Result
Threat name:
n/a
Detection:
malicious
Classification:
rans.spre.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1475908
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to behave differently if execute on a Russian/Kazak computer
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
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
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1475908 Sample: 5Ldcb3pt1n.exe Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 33 ssbzmoy.biz 2->33 35 pywolwnvd.biz 2->35 37 15 other IPs or domains 2->37 49 Snort IDS alert for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Antivirus detection for dropped file 2->53 55 7 other signatures 2->55 6 armsvc.exe 1 2->6         started        11 5Ldcb3pt1n.exe 1 2->11         started        13 TieringEngineService.exe 2->13         started        15 18 other processes 2->15 signatures3 process4 dnsIp5 39 vjaxhpbji.biz 82.112.184.197, 49744, 49751, 49752 FIRST_LINE-SP_FOR_B2B_CUSTOMERSUPSTREAMSRU Russian Federation 6->39 41 172.234.222.138, 49741, 49742, 80 AKAMAI-ASN1EU United States 6->41 17 C:\Windows\System32\wbengine.exe, PE32+ 6->17 dropped 19 C:\Windows\System32\wbem\WmiApSrv.exe, PE32+ 6->19 dropped 21 C:\Windows\System32\vds.exe, PE32+ 6->21 dropped 29 140 other malicious files 6->29 dropped 57 Drops executable to a common third party application directory 6->57 59 Infects executable files (exe, dll, sys, html) 6->59 43 npukfztj.biz 44.221.84.105, 49735, 49737, 49738 AMAZON-AESUS United States 11->43 45 knjghuig.biz 18.141.10.107, 49731, 49733, 49743 AMAZON-02US United States 11->45 47 2 other IPs or domains 11->47 23 C:\Windows\System32\alg.exe, PE32+ 11->23 dropped 25 C:\Windows\System32\FXSSVC.exe, PE32+ 11->25 dropped 27 DiagnosticsHub.Sta...llector.Service.exe, PE32+ 11->27 dropped 31 5 other malicious files 11->31 dropped 61 Creates files inside the volume driver (system volume information) 13->61 63 Contains functionality to behave differently if execute on a Russian/Kazak computer 13->63 65 Found direct / indirect Syscall (likely to bypass EDR) 15->65 file6 signatures7
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b/
Threat name:
Win32.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2024-04-07 00:34:25 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
31 of 38 (81.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hkvydtum6z5oobdsf2nrahpr3sccpqoezqdcxijps6ld3usq4vnq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/240718-pjwxzaxhrn/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
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
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7c684146-85df-41a8-9f97-2ff42bc46e57
Unpacked files
SH256 hash:
3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b
MD5 hash:
f44b188e4d8e67d11714d3b3726bc764
SHA1 hash:
40491fd9c14fccc77de24649566eb103a2663579
Link:
https://www.unpac.me/results/f84e1927-1a0e-435d-8231-e022c34ca0da/
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/3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin

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
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::GetSystemDirectoryW
KERNEL32.dll::GetFileAttributesW
KERNEL32.dll::GetTempFileNameA
KERNEL32.dll::GetTempPathA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegQueryValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::PeekMessageW

Comments