MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3d72496f46a130331bc6e35d4211c7a9d6c31770affba0f99ebbe6abf6cd42d2. 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: 13

Intelligence 13 IOCs YARA 22 File information Comments

SHA256 hash:	3d72496f46a130331bc6e35d4211c7a9d6c31770affba0f99ebbe6abf6cd42d2
SHA3-384 hash:	8b19f7436dbc7f5fde47238f91a74fe2b07f29d113fe4ec2cbb6a723ac5ce751999946fea6dbf8bc9cfe9c444436ab5e
SHA1 hash:	005b5c18852675ced842632957199d6d47128ade
MD5 hash:	f256345478d00e975e7c0987fa05f63e
humanhash:	mississippi-hot-magazine-seventeen
File name:	LisectAVT_2403002A_473.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	6'717'450 bytes
First seen:	2024-07-25 00:41:37 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'855 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep	196608:wmci4xQ81Y4AIBqxfOxlNbyJl1eO5KtTHCx7h:anxQQY4AHsxl0JTeOot
Threatray	1 similar samples on MalwareBazaar
TLSH	T13C66013BB3686D3EC5AA0B36057292107977BE516506BD1A07E0350CCB3E5E31E3AE97
TrID	28.8% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 22.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 16.4% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9) 12.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 5.1% (.SCR) Windows screen saver (13097/50/3)
File icon (PE):
dhash icon	1769e8d4d4cc4d33 (1 x AsyncRAT)
Reporter	Anonymous
Tags:	AsyncRAT exe

Anonymous

this malware sample is very nasty!

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection(s):

Sanesecurity.Malware.29039.UNOFFICIAL

Win.Packed.Bladabindi-7994427-0

Win.Packed.njRAT-10002074-1

Win.Packed.Msilzilla-10002982-0

Win.Packed.Loveletter-10023052-0

Win.Packed.Msilzilla-10024808-0

Win.Packed.Msilzilla-10026193-0

Win.Packed.Msilzilla-10026194-0

Win.Dropper.Nanocore-10030076-0

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL

ditekSHen.MALWARE.Win.XWorm.UNOFFICIAL

Win.Trojan.Generic-6417450-0

Win.Trojan.Generic-6454614-0

Win.Trojan.Generic-6454615-0

Win.Trojan.B-468

Gathering data

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a file

Creating a process from a recently created file

Creating a file in the %temp% subdirectories

Creating a window

Searching for synchronization primitives

Enabling the 'hidden' option for recently created files

Using the Windows Management Instrumentation requests

DNS request

Connection attempt

Sending an HTTP GET request

Creating a file in the %AppData% directory

Launching a process

Creating a process with a hidden window

Unauthorized injection to a recently created process

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Launching the process to change the firewall settings

Creating a file in the mass storage device

Enabling autorun by creating a file

Enabling threat expansion on mass storage devices

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:

Mimikatz

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/c3adbc69-9cdd-40e9-b4e6-bbc1b8e7834e

Result

Threat name:

Njrat, XWorm

Detection:

malicious

Classification:

troj.spyw.evad

Score:

90 / 100

Link:

https://www.joesandbox.com/analysis/1482220

Behaviour

Behavior Graph:

n/a

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/3d72496f46a130331bc6e35d4211c7a9d6c31770affba0f99ebbe6abf6cd42d2

Detection:

xworm

Link:

https://mwdb.cert.pl/sample/3d72496f46a130331bc6e35d4211c7a9d6c31770affba0f99ebbe6abf6cd42d2/

Threat name:

ByteCode-MSIL.Backdoor.njRAT

Status:

Malicious

First seen:

2024-04-03 07:28:00 UTC

File Type:

PE (.Net Exe)

Extracted files:

630

AV detection:

32 of 38 (84.21%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=hvzes32gueydgg6g4noueeohvhlmgf3qv752b6m6xptkx5wnilja._file

Verdict:

malicious

Label(s):

njrat

AsyncRAT

Result

Malware family:

xworm

Score:

10/10

Tags:

family:njrat family:xworm botnet:hacked discovery evasion persistence privilege_escalation rat trojan

Link:

https://tria.ge/reports/240725-a2edbazgpc/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Event Triggered Execution: Netsh Helper DLL

System Location Discovery: System Language Discovery

Adds Run key to start application

Looks up external IP address via web service

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Modifies Windows Firewall

Detect Xworm Payload

Xworm

njRAT/Bladabindi

Malware Config

C2 Extraction:

h2cker.ddns.net:195
h2cker.ddns.net:194
h2cker.ddns.net:0194

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/e8946ef6-b481-460b-8047-2f116e266b63

Unpacked files

SH256 hash:

3118d79a01efeff4d20ff291979d51d61657ba08f25629723c43ef57223562fe

MD5 hash:

e06cdd6427de08248256f58c62475f66

SHA1 hash:

a96954f41a665f25aef110e65e51f255f2d7a3ff

Link:

https://www.unpac.me/results/96f4c880-5050-4abd-9bb7-636686c68838/

SH256 hash:

fde477cc2c0c2b39969d03f87ca7a1633492d4fb0261bd306272cee6a06e7924

MD5 hash:

d9008a8a000519606dfeffa4534ebea6

SHA1 hash:

a8afa2601ce88ffc6e4b708d18934d727e251c90

Detections:

NjRat

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/96f4c880-5050-4abd-9bb7-636686c68838/

SH256 hash:

14f06b763b1f3b7e664e662de0e9ac0223af258b93bb5d1bdba430253b86bf1e

MD5 hash:

aa67d8767569da14eb97bffbd68b4891

SHA1 hash:

29809b563298600f7e17e9b60bed6611cf503588

Detections:

XWorm

Link:

https://www.unpac.me/results/96f4c880-5050-4abd-9bb7-636686c68838/

SH256 hash:

27b7c59ffc430b81533bf2d0f961db114cd42cb560ef8955b5828e46ebd80bd3

MD5 hash:

a564d608712a46330cb0ead21be9ebe1

SHA1 hash:

446e6030cbb0ad5d6a809e98d7d4e2cb5dbd5eff

Detections:

XWorm

Link:

https://www.unpac.me/results/96f4c880-5050-4abd-9bb7-636686c68838/

SH256 hash:

3d72496f46a130331bc6e35d4211c7a9d6c31770affba0f99ebbe6abf6cd42d2

MD5 hash:

f256345478d00e975e7c0987fa05f63e

SHA1 hash:

005b5c18852675ced842632957199d6d47128ade

Detections:

XWorm

NjRat

win_njrat_w1

win_njrat_g1

Link:

https://www.unpac.me/results/96f4c880-5050-4abd-9bb7-636686c68838/

Please note that we are no longer able to provide a coverage score for Virus Total.

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:	Borland Create hunting rule
Author:	malware-lu

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

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

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:	EXE_RAT_XWorm_April2024 Create hunting rule
Author:	Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell

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_NjRAT Create hunting rule
Author:	ditekSHen
Description:	Detects NjRAT / Bladabindi / NjRAT Golden

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

Rule name:	Mal_WIN_NjRAT_RAT_PE Create hunting rule
Author:	Phatcharadol Thangplub
Description:	Use to detect NjRAT implant.

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:	Windows_Trojan_Njrat_30f3c220 Create hunting rule

Rule name:	Windows_Trojan_Njrat_30f3c220 Create hunting rule
Author:	Elastic Security

Rule name:	win_njrat_w1 Create hunting rule
Author:	Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:	Identify njRat

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.

Malspam

AsyncRAT

exe 3d72496f46a130331bc6e35d4211c7a9d6c31770affba0f99ebbe6abf6cd42d2

(this sample)

Link

https://bbs.kafan.cn/forum-31-1.html

Delivery method

Distributed via e-mail attachment

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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