MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7ef5857ed0663777ad1d98f4bca4fe9a51fc3f3e6b31bbfcc8085fed3d9105a4. 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: 18

Intelligence 18 IOCs YARA 18 File information Comments

SHA256 hash:	7ef5857ed0663777ad1d98f4bca4fe9a51fc3f3e6b31bbfcc8085fed3d9105a4
SHA3-384 hash:	c96681c6f08a68d482af3af3b5b7fbd75a13e2b62c47a3e81fed673f2682a3993d8a28ba09a448ef3a4a4499b109dbfd
SHA1 hash:	983d74a5ddee0c797e72dc609c732f1ca866dfb3
MD5 hash:	0fe820a7e7d09f2cb0c993efb7d175a2
humanhash:	massachusetts-nuts-pluto-magazine
File name:	sigmica.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	38'912 bytes
First seen:	2025-03-13 18:09:11 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'243 x AgentTesla, 20'499 x Formbook, 12'374 x SnakeKeylogger)
ssdeep	768:aiS8brf7blu3ml5G719NFfAL7FWPB9KXBOMhAaokrp:Npnf7c+5IFOFO9KXBOMKcp
TLSH	T186035C487BD44226D6FE6FFA1AB372060730E9079913DB4E08D89A972B377C489057DA
TrID	67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.7% (.EXE) Win64 Executable (generic) (10522/11/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	BastianHein
Tags:	AsyncRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

461

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

sigmica.exe

Verdict:

Malicious activity

Analysis date:

2025-03-13 17:58:31 UTC

Tags:

xworm remote autorun-startup

Link:

https://app.any.run/tasks/6590617c-c82c-43d8-8f6d-b6bbd418a450

Note:

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

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67d31cc63962f1a6f470e64f

Tags:

asyncrat autorun

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a file

Creating a window

Connection attempt

Connection attempt to an infection source

Setting a global event handler for the keyboard

Query of malicious DNS domain

Enabling autorun by creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm asyncrat backdoor config-extracted njrat obfuscated packed packer_detected rat reconnaissance vbnet xworm

Link:

https://www.filescan.io/uploads/67d31f900a7899f35794d86c/reports/52bf9fd3-e3c2-4d70-93aa-4067a2635f26/overview

Verdict:

Malicious

Labled as:

Jalapeno.Generic

Link:

https://www.hybrid-analysis.com/sample/7ef5857ed0663777ad1d98f4bca4fe9a51fc3f3e6b31bbfcc8085fed3d9105a4

Malware family:

XWorm

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/46c90232-9aa0-404d-8598-c24259a0937c

Result

Threat name:

XWorm

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1637639

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

Contains functionality to log keystrokes (.Net Source)

Drops PE files to the user root directory

Found malware configuration

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Protects its processes via BreakOnTermination flag

Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)

Sample uses string decryption to hide its real strings

Suricata IDS alerts for network traffic

Yara detected XWorm

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/7ef5857ed0663777ad1d98f4bca4fe9a51fc3f3e6b31bbfcc8085fed3d9105a4

Detection:

xworm

Link:

https://mwdb.cert.pl/sample/7ef5857ed0663777ad1d98f4bca4fe9a51fc3f3e6b31bbfcc8085fed3d9105a4/

Threat name:

Win32.Exploit.Xworm

Status:

Malicious

First seen:

2025-03-13 17:58:31 UTC

File Type:

PE (.Net 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=p32yk7wqmy3xpli5td2lzjh6tji7ypz6nmy3x7gibbp62pmrawsa._file

Verdict:

malicious

Label(s):

xworm

Similar samples:

error

AsyncRAT

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm rat trojan

Link:

https://tria.ge/reports/250313-wrkm8syycs/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Enumerates physical storage devices

Drops startup file

Detect Xworm Payload

Xworm

Xworm family

Malware Config

C2 Extraction:

127.0.0.1:59355
cable-inside.gl.at.ply.gg:59355

Verdict:

Malicious

Tags:

rat xworm Win.Packed.njRAT-10002074-1

YARA:

win_mal_XWorm MALWARE_Win_XWorm win_xworm_bytestring

Link:

https://app.threat.zone/submission/0133870a-a77e-4118-8a4a-d8b06a7a0393

Unpacked files

SH256 hash:

7ef5857ed0663777ad1d98f4bca4fe9a51fc3f3e6b31bbfcc8085fed3d9105a4

MD5 hash:

0fe820a7e7d09f2cb0c993efb7d175a2

SHA1 hash:

983d74a5ddee0c797e72dc609c732f1ca866dfb3

Detections:

win_xworm_w0

Link:

https://www.unpac.me/results/cebd211a-6df5-4bbe-8b11-be418053934b/

Malware family:

XWorm

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/7ef5857ed066/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/7ef5857ed0663777ad1d98f4bca4fe9a51fc3f3e6b31bbfcc8085fed3d9105a4

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:	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:	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:	Windows_Generic_Threat_b509dfc8 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_XWorm_b7d6eaa8 Create hunting rule
Author:	Elastic Security

Rule name:	win_xworm_bytestring Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects bytestring present in unobfuscated xworm

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 Create hunting rule
Author:	jeFF0Falltrades

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.

No further information available

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

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