MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b. 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: 17

Intelligence 17 IOCs YARA 21 File information Comments

SHA256 hash:	a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b
SHA3-384 hash:	a5761f1ac7f5628cd35725c8ce18ed1e6f602b7f895eed765e3a407846a5da3d773b4385332386c4ae82548e8ac3bc98
SHA1 hash:	bc4bb3e45b02a01406db650059c28e1cbc13acf6
MD5 hash:	b66e1459c22283ec971e550285993bf6
humanhash:	xray-two-stairway-river
File name:	rDHLSHIPMENTSNOTIFICATIONDocument.exe
Download:	download sample
Signature	Expiro Create hunting rule
File size:	1'877'504 bytes
First seen:	2025-06-26 02:30:07 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	0b768923437678ce375719e30b21693e (143 x Formbook, 25 x MassLogger, 22 x SnakeKeylogger)
ssdeep	49152:MPVtHLZeJbInQRaKN8mQSpTLNiXicJFFRGNzj3:yLYbInQxQSpT7wRGpj3
Threatray	155 similar samples on MalwareBazaar
TLSH	T1BB95E00273C1D062FFAB91334F5AE6115ABC79264123AA2F13981D79FA705B1473E7A3
TrID	40.3% (.EXE) Win64 Executable (generic) (10522/11/4) 19.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.2% (.EXE) Win32 Executable (generic) (4504/4/1) 7.7% (.EXE) OS/2 Executable (generic) (2029/13) 7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	FXOLabs
Tags:	exe Expiro

Intelligence

File Origin

# of uploads :

# of downloads :

457

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

rDHLSHIPMENTSNOTIFICATIONDocument.exe

Verdict:

Malicious activity

Analysis date:

2025-06-26 02:30:52 UTC

Tags:

m0yv auto-startup

Link:

https://app.any.run/tasks/a17d579b-395d-41ce-acff-adc03e485e64

Note:

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

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/11170/

Detection(s):

SecuriteInfo.com.Win32.Expiro-1.UNOFFICIAL

SecuriteInfo.com.Win32.Expiro-2.UNOFFICIAL

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=685cb256b06783b9ebd7c635

Tags:

autorun autoit emotet

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

Modifying a system executable file

Launching a process

Loading a system driver

Connection attempt to an infection source

Creating a file in the %temp% directory

Creating a file in the system32 subdirectories

Creating a file

Creating a process from a recently created 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

Enabling autorun by creating a file

Unauthorized injection to a system process

Sending an HTTP GET request to an infection source

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context anti-debug autoit compiled-script entropy fingerprint keylogger masquerade microsoft_visual_cc packed packed packer_detected

Link:

https://www.filescan.io/uploads/685cb1d23faf8fcd7d42bf2b/reports/47517f8d-8ec0-4f6f-9c6e-b03d4d5eb111/overview

Verdict:

Malicious

Labled as:

Expiro.Generic

Link:

https://www.hybrid-analysis.com/sample/a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b

Malware family:

Expiro

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/785324b5-dfda-4bef-86a5-528d8ddd3bda

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b

Verdict:

Malware

YARA:

7 match(es)

Tags:

AutoIt Decompiled Executable PE (Portable Executable) Suspect Win 32 Exe x86

Link:

https://app.malva.re/file/b66e1459c22283ec971e550285993bf6

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b/

Threat name:

Win32.Virus.Expiro

Status:

Malicious

First seen:

2025-06-26 02:33:40 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=uni6aiizck6x5xvxibj2fmt66bhddcnia6abohmkijubrtwpbmfq._file

Verdict:

malicious

Label(s):

unc_loader_036

expiro

m0yv

Result

Malware family:

n/a

Score:

7/10

Tags:

discovery spyware stealer

Link:

https://tria.ge/reports/250626-c2cktsak3z/

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 WriteProcessMemory

Uses Volume Shadow Copy service COM API

Enumerates physical storage devices

Program crash

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

Drops startup file

Executes dropped EXE

Reads user/profile data of web browsers

Verdict:

Malicious

Tags:

expiro

YARA:

n/a

Link:

https://app.threat.zone/submission/c3ba2556-7afd-4974-9fea-811ea7d824d4

Unpacked files

SH256 hash:

a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b

MD5 hash:

b66e1459c22283ec971e550285993bf6

SHA1 hash:

bc4bb3e45b02a01406db650059c28e1cbc13acf6

Link:

https://www.unpac.me/results/01e5e2ab-f65a-4042-bf8d-a2ace5ece4f9/

SH256 hash:

7452ad234c00598741349a8ed4f0b6f08f4371133a411b0acbd346e1c09193b6

MD5 hash:

9213f474e20e59853c9b950940374a18

SHA1 hash:

d51495b0b44bfdd07646f5d92a36247c360c97a1

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/01e5e2ab-f65a-4042-bf8d-a2ace5ece4f9/

Parent samples :

ed63b2f51317e102654f2c8e08ee712e0c4f898dd3b4d7ad38ca34e69fbc7f6c
7c0f7f7b7442b12b297cb0b9c93c3d4083e1752c7ffb965830ab4266ee194ee6
9f245a4fad1a5fc0476cbac1401a05fd83cdd429ddcef8a3ba6bb70522db7967
0ea246c52245f5dd919aead5707821080a13b70af25218973a14f373a4691ec3
a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b
ec2f7f564f0d51b2962884a883279651c8afcfc5353ca1501e1da1eb46ecdbaf
0242cc5f86d2d874358e069fe1ec98aaabc7bc8672106b6adeedebd08b25ca63

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a351e0211912/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/a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b

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

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

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

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

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

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:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	pe_detect_tls_callbacks Create hunting rule

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

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:	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:	Windows_Trojan_M0yv_92f66467 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.

Malspam

Expiro

exe a351e0211912bd7edeb74053a2b27ef04e3189a80780171d8a426818cecf0b0b

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/11170/

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