MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8adc7f22f7963685c41369d9231e1ee62d2e713b875baafd32986492f1f71c5f. 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: 18

Intelligence 18 IOCs YARA 16 File information Comments

SHA256 hash:	8adc7f22f7963685c41369d9231e1ee62d2e713b875baafd32986492f1f71c5f
SHA3-384 hash:	56d62ba18aa4b52886bc36d60341e0eea9896b6cecd11843e36e21a09ff383b65b86be348d74b1e7eadf7ea6d6ccffc4
SHA1 hash:	2facecb6f13fa77a11be83976623122836bce706
MD5 hash:	44c31915ed086f519313779b0d425a3d
humanhash:	tango-ohio-seven-bluebird
File name:	EdgeUpdate.exe
Download:	download sample
Signature	Expiro Create hunting rule
File size:	1'780'736 bytes
First seen:	2025-05-21 22:06:06 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	41e05d591d7d93bdd5bc6d5da04da74b (52 x RemcosRAT, 1 x Expiro)
ssdeep	24576:B0Zp+VieXBWY0ZI/TwSfVcYG3K/cJHlnFR+IGNe8j3Iz:XiyB90ZILNiXicJFFRGNzj3
Threatray	960 similar samples on MalwareBazaar
TLSH	T14485F101B9D2C1B2E57654300D2AE736DEBCBD2028358D77B3D51D5BFA30191AB39AB2
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	c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter	skocherhan
Tags:	exe Expiro thomson101

skocherhan

https://github.com/thomson101/lawletupdate/releases/download/Release/EdgeUpdate.exe

Intelligence

File Origin

# of uploads :

# of downloads :

468

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

EdgeUpdate.exe

Verdict:

Malicious activity

Analysis date:

2025-05-21 22:08:43 UTC

Tags:

m0yv rat remcos loader

Link:

https://app.any.run/tasks/83fa6690-06fe-46ad-834d-27d038874bf8

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.Win32.Expiro-2.UNOFFICIAL

Win.Trojan.Remcos-9841897-0

Win.Trojan.Remcos-10002580-0

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=682e4f1fc28c67d66643f677

Tags:

ransomware dropper extens

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Creating a file in the %AppData% directory

Setting a keyboard event handler

Modifying an executable file

Connection attempt

Searching for synchronization primitives

Launching a service

Modifying a system executable file

Connection attempt to an infection source

Launching a process

Loading a system driver

Creating a file

Creating a file in the system32 subdirectories

Modifying a system file

Sending an HTTP GET request to an infection source

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

Sending an HTTP POST request to an infection source

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

cmd config-extracted crypto evasive exploit explorer fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed rat rat remcos remcos sc windows

Link:

https://www.filescan.io/uploads/682e4e60fd02ed5e058114d1/reports/582a3aa9-801b-4c6e-a275-f9bef5a2e745/overview

Verdict:

Malicious

Labled as:

Expiro.Generic

Link:

https://www.hybrid-analysis.com/sample/8adc7f22f7963685c41369d9231e1ee62d2e713b875baafd32986492f1f71c5f

Malware family:

Expiro

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/888bc0c3-0614-41b4-952e-a409045f30ac

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.spre.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1696339

Signature

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

Contains functionality to bypass UAC (CMSTPLUA)

Contains functionality to register a low level keyboard hook

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Contains functionalty to change the wallpaper

Creates files inside the volume driver (system volume information)

Detected Remcos RAT

Drops executable to a common third party application directory

Found direct / indirect Syscall (likely to bypass EDR)

Infects executable files (exe, dll, sys, html)

Installs a global keyboard hook

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Queries random domain names (often used to prevent blacklisting and sinkholes)

Sigma detected: Remcos

Suricata IDS alerts for network traffic

Writes data at the end of the disk (often used by bootkits to hide malicious code)

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/8adc7f22f7963685c41369d9231e1ee62d2e713b875baafd32986492f1f71c5f

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/8adc7f22f7963685c41369d9231e1ee62d2e713b875baafd32986492f1f71c5f/

Threat name:

Win32.Virus.Expiro

Status:

Malicious

First seen:

2025-05-21 22:06:23 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

23 of 24 (95.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=rloh6ixxsy3ilratnhmsghq64yws44j3q5n2v7jstbsjf4pxdrpq._file

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:who inv3 discovery rat spyware stealer

Link:

https://tria.ge/reports/250521-1z831sdn9y/

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 SetWindowsHookEx

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

Drops file in System32 directory

Executes dropped EXE

Reads user/profile data of web browsers

Remcos

Remcos family

Malware Config

C2 Extraction:

80.85.154.131:2618

Unpacked files

SH256 hash:

8adc7f22f7963685c41369d9231e1ee62d2e713b875baafd32986492f1f71c5f

MD5 hash:

44c31915ed086f519313779b0d425a3d

SHA1 hash:

2facecb6f13fa77a11be83976623122836bce706

Detections:

win_remcos_w0

Remcos

Link:

https://www.unpac.me/results/cbf0e3ec-9e39-4f75-94cb-c1078ebca810/

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/8adc7f22f796/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/8adc7f22f7963685c41369d9231e1ee62d2e713b875baafd32986492f1f71c5f

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:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM Create hunting rule
Author:	ditekSHen
Description:	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

Rule name:	malware_shellcode_hash Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect shellcode api hash value

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	Remcos Create hunting rule
Author:	kevoreilly
Description:	Remcos Payload

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

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:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	Windows_Trojan_M0yv_92f66467 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_Remcos_b296e965 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set

Rule name:	win_m0yv_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.m0yv.

Rule name:	win_remcos_rat_unpacked Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in remcos rat Samples.

Rule name:	win_remcos_w0 Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in remcos rat Samples.

Rule name:	yarahub_win_remcos_rat_unpacked_aug_2023 Create hunting rule
Author:	Matthew @ Embee_Research

File information

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

No further information available

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
GDI_PLUS_API	Interfaces with Graphics	gdiplus.dll::GdiplusStartup gdiplus.dll::GdipGetImageEncodersSize gdiplus.dll::GdipGetImageEncoders gdiplus.dll::GdipAlloc
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::mciSendStringA WINMM.dll::mciSendStringW WINMM.dll::PlaySoundW WINMM.dll::waveInAddBuffer WINMM.dll::waveInClose WINMM.dll::waveInOpen
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::GetTokenInformation
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExA SHELL32.dll::ShellExecuteW
URL_MONIKERS_API	Can Download & Execute components	urlmon.dll::URLDownloadToFileW urlmon.dll::URLOpenBlockingStreamW
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessW KERNEL32.dll::CreateProcessA KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken KERNEL32.dll::WriteProcessMemory KERNEL32.dll::CloseHandle WININET.dll::InternetCloseHandle
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::FindFirstVolumeW KERNEL32.dll::FindNextVolumeW KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryExW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::AllocConsole KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetConsoleOutputCP KERNEL32.dll::SetConsoleTextAttribute KERNEL32.dll::SetStdHandle
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::DeleteFileA KERNEL32.dll::MoveFileExW KERNEL32.dll::MoveFileW
WIN_BASE_USER_API	Retrieves Account Information	ADVAPI32.dll::GetUserNameW ADVAPI32.dll::LookupPrivilegeValueA KERNEL32.dll::QueryDosDeviceW
WIN_CRYPT_API	Uses Windows Crypt API	ADVAPI32.dll::CryptAcquireContextA ADVAPI32.dll::CryptGenRandom
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegCreateKeyW ADVAPI32.dll::RegCreateKeyA ADVAPI32.dll::RegDeleteKeyA ADVAPI32.dll::RegOpenKeyExA ADVAPI32.dll::RegOpenKeyExW
WIN_SVC_API	Can Manipulate Windows Services	ADVAPI32.dll::ChangeServiceConfigW ADVAPI32.dll::ControlService ADVAPI32.dll::OpenSCManagerW ADVAPI32.dll::OpenSCManagerA ADVAPI32.dll::OpenServiceW ADVAPI32.dll::QueryServiceConfigW
WIN_USER_API	Performs GUI Actions	USER32.dll::AppendMenuA USER32.dll::EmptyClipboard USER32.dll::OpenClipboard USER32.dll::CreateWindowExA

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