MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef. 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

WailsLoader

Vendor detections: 10

Intelligence 10 IOCs YARA 17 File information Comments

SHA256 hash:	d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef
SHA3-384 hash:	e2481e94ab09cb3653635ee9316183c3bdddd9c8954159e063330b2b7ae14f70a6027e03454cb6ae2a049df75947f3b7
SHA1 hash:	a01de3e31567d5393854e8e8d1ef378ef4f454af
MD5 hash:	309d76027588d6eec3051077bb3b4540
humanhash:	hot-victor-low-earth
File name:	rdp_officex_manager.exe
Download:	download sample
Signature	WailsLoader Create hunting rule
File size:	9'947'672 bytes
First seen:	2026-10-15 23:56:20 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	c457c3a53f518626ccd02bd56edd9752 (5 x WailsLoader)
ssdeep	196608:rAJ5hg5KEXLlidW0ySN/i55CACmcam11yS6i1hnZcjxJQqXwB:rAJ5hg5KE7QW0ySN/i6GcaIoSj1hZoWB
TLSH	T1E1A6BF31714AC4FEDC5D35BE3A3E9A5A8218692A0BB5C0C7F3DC2979537D4C21E36A12
TrID	29.5% (.EXE) Win64 Executable (generic) (6522/11/2) 22.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 20.3% (.EXE) Win32 Executable (generic) (4504/4/1) 9.1% (.EXE) OS/2 Executable (generic) (2029/13) 9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
dhash icon	c41be66464b42fdc (1 x WailsLoader)
Reporter	ffforward
Tags:	exe RDP-OfficeX-Manager signed WailsLoader XPFCZWR9RK8XL4

Code Signing Certificate

Organisation:	Pelican Finland Holding Oy
Issuer:	Certum Code Signing 2021 CA
Algorithm:	sha256WithRSAEncryption
Valid from:	2026-08-25T14:54:25Z
Valid to:	2027-08-25T14:54:24Z
Serial number:	1575aa28624e4ee4704303dd356d8ed1
Intelligence:	2 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Graveyard Blocklist:	This certificate is on the Cert Graveyard blocklist
Thumbprint Algorithm:	SHA256
Thumbprint:	2c1b0ba0a2d0eccd7554fb53a7e80d223b156c28dff8185f362e88a63b362c15
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

ffforward

Trojanized Wails desktop app distributed via official Microsoft Store (Product ID: XPFCZWR9RK8XL4, Publisher ID: 95875280 Alfidevelopment). Signed by Pelican Finland Holding Oy (Certum serial 0x1575aa28624e4ee4704303dd356d8ed1), timestamped 2026-09-21, revoked on 2026-10-12. Active C2 web.yafeicoffee.com via Telegram DDR +yxuLqpii3H42YTU6 (delimiter 'rdpp').

Intelligence

File Origin

# of uploads :

# of downloads :

211

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-10-16 00:07:08 UTC

Tags:

advancedinstaller auto-reg golang telegram

Link:

https://app.any.run/tasks/1234e83d-82ad-4fc7-8d17-fd20a84b250d

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/92201/

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad1b2b36f551121ba167f65

Tags:

ransomware dropper virus

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating synchronization primitives

Creating a file in the %AppData% subdirectories

Searching for synchronization primitives

Creating a file in the %temp% directory

Deleting a recently created file

Loading a suspicious library

Launching a process

Modifying a system file

Creating a file in the Windows subdirectories

Creating a file

Creating a process from a recently created file

Sending a custom TCP request

Launching a service

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug anti-vm base64 expand fingerprint installer-heuristic lolbin microsoft_visual_cc msiexec overlay packed reconnaissance revoked-cert runonce signed

Link:

https://www.filescan.io/uploads/6ad16862390544dda9e4014b/reports/354bf71d-4f13-4b43-9d3f-189e0ac950bb/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef

Verdict:

Clean

File Type:

exe x32

First seen:

2026-10-15T21:57:00Z UTC

Last seen:

2026-10-16T23:04:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/08d3956c-82be-4a95-8cf6-481020235766

Score:

52%

Verdict:

Susipicious

File Type:

Link:

https://malprob.io/report/d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef

Verdict:

inconclusive

YARA:

6 match(es)

Tags:

CAB:COMPRESSION:MSZIP Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86

Link:

https://app.malva.re/file/309d76027588d6eec3051077bb3b4540

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef/

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=2s5r7hgbjyncpks5j5pmhfzepmdmywyk4c4p2qdhukyq6yrd4lxq._file

Verdict:

malicious

Label(s):

WailsLoader

Link:

https://reports.threatray.com/21da0607-4b3f-4454-9f4c-7da032cb8da8

Result

Malware family:

wailsloader

Score:

10/10

Tags:

family:wailsloader defense_evasion discovery downloader loader trojan

Link:

https://tria.ge/reports/261015-3zn4ysyt7p/

Behaviour

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Reads the TCP/IP host and domain name from the registry

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Drops file in Windows directory

Checks whether UAC is enabled

Enumerates connected drives

Network Share Discovery

Executes dropped EXE

Loads dropped DLL

Detects WailsLoader

Family: WailsLoader

Unpacked files

SH256 hash:

d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef

MD5 hash:

309d76027588d6eec3051077bb3b4540

SHA1 hash:

a01de3e31567d5393854e8e8d1ef378ef4f454af

Link:

https://www.unpac.me/results/55e9f5aa-eb02-4d99-871f-0465ccc628a0/

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/d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef

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:	certum_issuer Create hunting rule
Author:	Certum
Description:	Looks for files signed with certificate issued by Certum

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

Rule name:	detect_certum_issuer Create hunting rule
Author:	Certum
Description:	Looks for files signed with certificate issued by Certum

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

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_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

Rule name:	WIN_Malware_Unknown_ForgeAuto_2e3a5916_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat extrait)

Rule name:	WIN_Malware_Unknown_ForgeAuto_30f84f37 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_37b4704b Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_74566f98 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_79234c04 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_9045187c Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_92a28498 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

File information

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

Web download

WailsLoader

exe d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef

(this sample)

WailsLoader

exe 7169885e9230836cf829ee86035864806a8720cb644e5a1d7f53f914b330cab2

Link

https://apps.microsoft.com/detail/xpfczwr9rk8xl4

Link

https://cdn.storeedgefd.dsx.mp.microsoft.com/eus2/cachedpackages/95875280/0e862706-8047-42cc-9d5f-5c2b53a78b20/d4bb1f9cc14e1a27aa5d4f5ec397247b06cc5b0ae0b8fd4067a2b10f6223e2ef/file

Dropping

SHA256 7169885e9230836cf829ee86035864806a8720cb644e5a1d7f53f914b330cab2

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/92201/

Dropping

MD5 416655f0370ddb7e0d0fc54f136caecc

URLhaus

https://urlhaus.abuse.ch/url/3950709/

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