MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dbc7ace8dfee9c558ec0e063685e4930f28cf1b5bd6948d48fc8fcd26e02ffe8. 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: 13


Intelligence 13 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dbc7ace8dfee9c558ec0e063685e4930f28cf1b5bd6948d48fc8fcd26e02ffe8
SHA3-384 hash: ba4842b83325b8edc00727377231491c08d7e2aae79dbc02687ee547f255409d8f2ef1aa89b59fbd729f0cd390c081db
SHA1 hash: 00d4d5e3e377fb106f0727d2b888186aa0a66312
MD5 hash: e6bcc86fa3a356ccdd7b24a011d9e919
humanhash: nuts-mango-king-batman
File name:RedFire.External.exe
Download: download sample
Signature Expiro
Create hunting rule
File size:6'294'528 bytes
First seen:2025-05-14 16:45:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ac4e377e308a35537a0aa3aa81c79d97 (1 x Expiro)
ssdeep 98304:wU3oZOHY/tKKqI1W8eE07lJSNKgzeWuiplrlTp+k:loZOHY/kR8eE07lJS0+eWusrlV+k
TLSH T150565B2AB64E01E6FA13303549539B8BC13EB8096316A3DBB18765453FEE7D072BD349
TrID 38.7% (.EXE) Win64 Executable (generic) (10522/11/4)
20.4% (.FON) Windows Font (5545/9/1)
18.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.4% (.EXE) OS/2 Executable (generic) (2029/13)
7.3% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Anonymous
Tags:exe Expiro

Intelligence

File Origin
# of uploads :
1
# of downloads :
448
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RedFire.External.exe
Verdict:
Malicious activity
Analysis date:
2025-05-14 16:48:01 UTC
Tags:
m0yv antivm
Link:
https://app.any.run/tasks/d17fd6d6-a29f-4c80-83da-3a09ce9122ff

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Expiro-3.UNOFFICIAL
Create hunting rule

Win.Malware.Dropperx-10032607-0
Create hunting rule

Win.Malware.Sabsik-10038319-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6824ca144a59e5a2ce04963d
Tags:
vmdetect emotet expiro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug anti-vm anti-vm base64 crypto fingerprint hacktool keylogger lolbin microsoft_visual_cc packed packed packer_detected remote
Link:
https://www.filescan.io/uploads/6824c916223c91b1d1d3817b/reports/2ec01b08-4035-48bf-b5a2-01d5ba2a9e5b/overview
Verdict:
Malicious
Labled as:
Win64.Expiro.Generic
Link:
https://www.hybrid-analysis.com/sample/dbc7ace8dfee9c558ec0e063685e4930f28cf1b5bd6948d48fc8fcd26e02ffe8
Malware family:
Expiro
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/032c947a-9801-4503-bd47-db81df4e5260
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1690177
Signature
Antivirus / Scanner detection for submitted sample
Contain functionality to detect virtual machines
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject threads in other processes
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/dbc7ace8dfee9c558ec0e063685e4930f28cf1b5bd6948d48fc8fcd26e02ffe8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dbc7ace8dfee9c558ec0e063685e4930f28cf1b5bd6948d48fc8fcd26e02ffe8/
Threat name:
Win64.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2025-05-14 15:46:14 UTC
File Type:
PE+ (Exe)
Extracted files:
17
AV detection:
29 of 37 (78.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3pd2z2g752ofldwa4brwqxsjgdziz4nvxvuurvepzd6ne3qc77ua._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/250514-t929wscq21/
Verdict:
Malicious
Tags:
Win.Malware.Dropperx-10032607-0
YARA:
n/a
Link:
https://app.threat.zone/submission/02993756-ee90-4113-8fbe-2e057b06b789
Unpacked files
SH256 hash:
dbc7ace8dfee9c558ec0e063685e4930f28cf1b5bd6948d48fc8fcd26e02ffe8
MD5 hash:
e6bcc86fa3a356ccdd7b24a011d9e919
SHA1 hash:
00d4d5e3e377fb106f0727d2b888186aa0a66312
Link:
https://www.unpac.me/results/aaf22a82-88c5-4125-8452-369a0ee53100/
SH256 hash:
05fa5e74cfce70c0e9c20f372dcd4ff3f5f8598db41a071904c88ce8f64ecafb
MD5 hash:
b24f81e11388997738f29e09fdd62a3a
SHA1 hash:
71cfbc73bbe2defb77f6c01c0b3d37a630b386c2
Link:
https://www.unpac.me/results/aaf22a82-88c5-4125-8452-369a0ee53100/
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/dbc7ace8dfee9c558ec0e063685e4930f28cf1b5bd6948d48fc8fcd26e02ffe8

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_Debugger
Create hunting rule
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:DebuggerCheck__RemoteAPI
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:INDICATOR_SUSPICIOUS_References_SecTools
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many IR and analysis tools
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Expiro

Executable exe dbc7ace8dfee9c558ec0e063685e4930f28cf1b5bd6948d48fc8fcd26e02ffe8

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3543489/

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 (GUARD_CF)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::ConvertSidToStringSidA
ADVAPI32.dll::CopySid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::IsValidSid
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
RPC_APICan Execute Remote ProceduresRPCRT4.dll::RpcStringFreeA
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::GetTokenInformation
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::URLDownloadToFileA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateRemoteThread
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsapi-ms-win-crt-runtime-l1-1-0.dll::_get_narrow_winmain_command_line
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileMappingA
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::MoveFileExA
KERNEL32.dll::GetSystemDirectoryA
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameA
ADVAPI32.dll::LookupPrivilegeValueA
WIN_CRYPT_APIUses Windows Crypt APICRYPT32.dll::CertAddCertificateContextToStore
CRYPT32.dll::CertCreateCertificateChainEngine
CRYPT32.dll::CertEnumCertificatesInStore
CRYPT32.dll::CertFindCertificateInStore
CRYPT32.dll::CertFindExtension
CRYPT32.dll::CertFreeCertificateChain
CRYPT32.dll::CertFreeCertificateChainEngine
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegSetValueExW
WIN_SOCK_APIUses Network to send and receive dataWS2_32.dll::freeaddrinfo
WS2_32.dll::getaddrinfo
WS2_32.dll::WSAIoctl
WIN_USER_APIPerforms GUI ActionsUSER32.dll::EmptyClipboard
USER32.dll::FindWindowA
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA
USER32.dll::CreateWindowExW

Comments