MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b. 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

AsyncRAT

Vendor detections: 17

Intelligence 17 IOCs YARA 20 File information Comments

SHA256 hash:	37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b
SHA3-384 hash:	52fd944a9984ed5431945c28e78d0ac734c54a933d5ced586775a30413e5c1d81b7e42d3cc9bcd58bfbaa96528ea002a
SHA1 hash:	f63c54193c17199031d7826b5ad0660db4ffb6e5
MD5 hash:	5053320a66a5c4989c44a932a8720b7d
humanhash:	enemy-mirror-april-alpha
File name:	Contract9021_06_07_26.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	852'992 bytes
First seen:	2026-07-06 09:49:58 UTC
Last seen:	2026-08-10 13:43:36 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'190 x AgentTesla, 20'337 x Formbook, 12'364 x SnakeKeylogger)
ssdeep	24576:DRvV0Ldy2hY+QY/4WeSGQ2LRXv2QEfP5HVLotL9p:DRN0LY2O+QYESH29/bEJdoD
Threatray	23 similar samples on MalwareBazaar
TLSH	T1E3050168675DE801C8210735ADB4E6BC16693E6DBA11D3171FECBEEFB9367168C40382
TrID	70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.2% (.EXE) Win64 Executable (generic) (6522/11/2) 4.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
dhash icon	d0e8d4aaaacc68dc (2 x AsyncRAT, 1 x Vidar, 1 x RemcosRAT)
Reporter	afokin52
Tags:	AsyncRAT exe RAT xworm

afokin52

XWorm V7.1 dropper delivered as ZIP disguised with .r11 extension in a spoofed-FESCO 'signed contract' phishing email; captured at an inbound-mail honeypot gateway. C2 config extracted via sandbox.

Intelligence

File Origin

# of uploads :

# of downloads :

216

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

RoboSki

Details

Link:

https://research.acce.ciphertechsolutions.com/results/a2d4e6ae-8502-4aca-9d99-5ee64f41ed80/

Malware family:

n/a

ID:

File name:

e8e901194d86b29166d6028cc97d3b7559ecff413f20cd7b7f84601c2d9f2709.zip

Verdict:

Malicious activity

Analysis date:

2026-07-06 06:33:28 UTC

Tags:

arch-exec auto-startup auto-reg xworm remote

Link:

https://app.any.run/tasks/a3d62c9f-044f-498d-8d37-9d51ac5fd3ad

Note:

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

Detection:

XWorm

Link:

https://www.capesandbox.com/analysis/73100/

Detection(s):

SecuriteInfo.com.Trojan.Siggen32.63064.32329.15162.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a4b4c3632952f8351d04e79

Tags:

autorun shell virus sage

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Сreating synchronization primitives

Creating a process with a hidden window

Launching a process

Blocking the Windows Defender launch

Adding an exclusion to Microsoft Defender

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

packed vbnet

Link:

https://www.filescan.io/uploads/6a4b7a7173fe64a041eb0dd6/reports/46af485d-0c15-4285-97c9-d1bd7b703dbf/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-07-05T23:12:00Z UTC

Last seen:

2026-07-08T05:36:00Z UTC

Hits:

~1000

Detections:

PDM:Trojan.Win32.Tasker.cust PDM:Trojan.Win32.Generic HEUR:Trojan-Spy.MSIL.Noon.gen Backdoor.Agent.TCP.C&C Trojan.Win32.Agent.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb Backdoor.MSIL.XWorm.c Backdoor.MSIL.XWorm.b

Link:

https://opentip.kaspersky.com/37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b/results?tab=lookup

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/3f981948-daad-4d53-8a97-9e3b80bfad07

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2026-07-06 06:03:42 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 38 (63.16%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=g73re66k5a4iyykdfxbni2yn6nwlgnuq5o6fw4s3fczt36yulvfq._file

Verdict:

malicious

Label(s):

xworm

AsyncRAT

37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b

AsyncRAT

51935015f140db78911cab15b0d4aad0f64bbfe742ed3ca5e037cad03a1978b7

AsyncRAT

c8c385c10b1586728318f43b9dcafecfd46d8d6000984fe489bb1d219ea8b4f9

AsyncRAT

e88fd6587c9bd407075fd34385ee42c17e02e68e99446b011d9f83932c802db6

AsyncRAT

error

AsyncRAT

+ 13 additional samples on MalwareBazaar

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm collection discovery evasion execution persistence rat spyware stealer trojan

Link:

https://tria.ge/reports/260706-lvabkahs8n/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Enumerates physical storage devices

System Location Discovery: System Language Discovery

SmartAssembly .NET packer

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Adds Run key to start application

Checks computer location settings

Drops startup file

Executes dropped EXE

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Command and Scripting Interpreter: PowerShell

Detect Xworm Payload

Family: Xworm

Modifies Windows Defender DisableAntiSpyware settings

Malware Config

C2 Extraction:

109.248.150.234:443

Unpacked files

SH256 hash:

37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b

MD5 hash:

5053320a66a5c4989c44a932a8720b7d

SHA1 hash:

f63c54193c17199031d7826b5ad0660db4ffb6e5

Link:

https://www.unpac.me/results/9dfe1c76-bf78-45e2-8d15-10f17ce3b4b2/

SH256 hash:

f9183d461a9ef71e1a0a97ddef54f5a785c3d4fa1ac6cb979a82206a52037928

MD5 hash:

ef3e974cb8bc7d3ab1ad98f55b7ba7c3

SHA1 hash:

7466eb7f8f9b5b57bb28e1d0493c390aba833da9

Detections:

win_xworm_a0

win_xworm_w0

XWorm

Link:

https://www.unpac.me/results/9dfe1c76-bf78-45e2-8d15-10f17ce3b4b2/

Parent samples :
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SH256 hash:

6924e51a07812c51933aa23f35b18007c254e59f66912398d47f6e4cd1b3d2d2

MD5 hash:

c860a5b3d943a7becaf517262a4133b7

SHA1 hash:

935aaa785e738e6d85e2c6bc3ef317baf0a936c8

Link:

https://www.unpac.me/results/9dfe1c76-bf78-45e2-8d15-10f17ce3b4b2/

SH256 hash:

6cd6903d12ecb90f404656bd20485cf78c4415a5127be56857835587f41f5703

MD5 hash:

08dbb4b6925de4b0de846e3d6d1bdf4d

SHA1 hash:

d330a660ac76fdbe27efb0be77aa85ceb75da71e

Link:

https://www.unpac.me/results/9dfe1c76-bf78-45e2-8d15-10f17ce3b4b2/

Malware family:

XWorm

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/37f7127bcae8/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/37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b

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:	ByteCode_MSIL_Backdoor_AsyncRAT Create hunting rule
Author:	ReversingLabs
Description:	Yara rule that detects AsyncRAT backdoor.

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

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:	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:	NET Create hunting rule
Author:	malware-lu

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

Rule name:	Njrat Create hunting rule
Author:	botherder https://github.com/botherder
Description:	Njrat

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:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	win_dotnet_vb_stealer_rat Create hunting rule
Author:	Arrbat
Description:	Detects .NET/VB executables with stealer/RAT capabilities (sockets, HTTP, processes, registry, etc).

Rule name:	win_xworm_w0 Create hunting rule
Author:	jeFF0Falltrades
Description:	Detects win.xworm.

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

Rule name:	xworm_kingrat Create hunting rule
Author:	jeFF0Falltrades

File information

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

Malspam

AsyncRAT

exe 37f7127bcae8388c61432dc2d46b0df36cb33690ebbc5b725b28b33dfb145d4b

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/73100/

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