MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cbfb37a30549dfc3b45cb0619d9f810f8ea32c59e63aa91a21ab8d4192f74c72. 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

XWorm

Vendor detections: 15

Intelligence 15 IOCs YARA 10 File information Comments

SHA256 hash:	cbfb37a30549dfc3b45cb0619d9f810f8ea32c59e63aa91a21ab8d4192f74c72
SHA3-384 hash:	a125571becbf2fc15e8886018b3e1d4612bf81ea387b078c4dc930e060d69ac1ec9ea6a6337601fd160138e41277b7b5
SHA1 hash:	148dd73b7a98df5a3990b016cdbed476e4320f13
MD5 hash:	0ae9d4d91bde4d050f899f917a56048c
humanhash:	white-quebec-earth-butter
File name:	taskhosts.exe
Download:	download sample
Signature	XWorm Create hunting rule
File size:	31'744 bytes
First seen:	2023-10-05 12:51:56 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep	768:gMzW03/EQupuLtpXn+Pd1IHZFl99QsOmhWbrelI:b3cQ0itp3+M5Fl997Om4yI
Threatray	27 similar samples on MalwareBazaar
TLSH	T137E25D48B7958326C5FE5BF529B2E1020275B513CD27CF6E1CD889AA7B77AC14A403E2
TrID	60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.8% (.SCR) Windows screen saver (13097/50/3) 8.7% (.EXE) Win64 Executable (generic) (10523/12/4) 5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter	JoulK
Tags:	exe xworm

Intelligence

File Origin

# of uploads :

# of downloads :

277

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

taskhosts.exe

Verdict:

Malicious activity

Analysis date:

2023-10-05 12:57:13 UTC

Tags:

xworm

Link:

https://app.any.run/tasks/e4ea1d3d-f514-490e-a324-85b186d06563

Note:

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

Detection(s):

Win.Packed.njRAT-10002074-1

Win.Packed.Msilzilla-10002982-0

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL

ditekSHen.MALWARE.Win.XWorm.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a process with a hidden window

DNS request

Sending a custom TCP request

Creating a process from a recently created file

Creating a file

Searching for the window

Сreating synchronization primitives

Creating a file in the %AppData% directory

Launching a process

Enabling autorun by creating a file

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

anti-vm greyware lolbin packed replace schtasks

Link:

https://www.filescan.io/uploads/651eb1775befb75cf360c5a5/reports/85dcdaa4-d375-46be-8f1d-f13103925dee/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/cbfb37a30549dfc3b45cb0619d9f810f8ea32c59e63aa91a21ab8d4192f74c72

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:

XWorm

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/c17248b4-0c88-40d5-90f5-a69b653cfa6d

Result

Threat name:

XWorm

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1320262

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Connects to many ports of the same IP (likely port scanning)

Found malware configuration

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sigma detected: Schedule system process

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected XWorm

Behaviour

Behavior Graph:

Download SVG

Detection:

xworm

Link:

https://mwdb.cert.pl/sample/cbfb37a30549dfc3b45cb0619d9f810f8ea32c59e63aa91a21ab8d4192f74c72/

Threat name:

ByteCode-MSIL.Backdoor.XWorm

Status:

Malicious

First seen:

2023-07-30 06:34:00 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

29 of 38 (76.32%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zp5tpiyfjhp4hnc4wbqz3h4bb6hkglcz4y5ksgrbvogudexxjrza._file

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm rat trojan

Link:

https://tria.ge/reports/231005-p3284ada36/

Behaviour

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Checks computer location settings

Executes dropped EXE

Detect Xworm Payload

Xworm

Malware Config

C2 Extraction:

miles-c.at.ply.gg:49826

Unpacked files

SH256 hash:

cbfb37a30549dfc3b45cb0619d9f810f8ea32c59e63aa91a21ab8d4192f74c72

MD5 hash:

0ae9d4d91bde4d050f899f917a56048c

SHA1 hash:

148dd73b7a98df5a3990b016cdbed476e4320f13

Detections:

XWorm

Link:

https://www.unpac.me/results/bcf5c21d-81e5-45de-85d8-a17232ad826c/

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/cbfb37a30549dfc3b45cb0619d9f810f8ea32c59e63aa91a21ab8d4192f74c72

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:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	MALWARE_Win_AsyncRAT Create hunting rule
Author:	ditekSHen
Description:	Detects AsyncRAT

Rule name:	MALWARE_Win_XWorm Create hunting rule
Author:	ditekSHen
Description:	Detects XWorm

Rule name:	Multifamily_RAT_Detection Create hunting rule
Author:	Lucas Acha (http://www.lukeacha.com)
Description:	Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	SUSP_DOTNET_PE_List_AV Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detecs .NET Binary that lists installed AVs

Rule name:	win_delivery_check_g0 Create hunting rule

Rule name:	win_xworm_simple_strings Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects simple strings present in unobfuscated xworm

File information

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

No further information available

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