MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371. 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 15 File information Comments 1

SHA256 hash:	a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371
SHA3-384 hash:	844cf292ba232858a3ecc03b011fdfd293c66683a445da0a70bfacda79baefa7bd570ec793610ee4adec98cf92a2e003
SHA1 hash:	7fc71ef7fb4aa436b93ec4b6a825fee64501460f
MD5 hash:	fccff79af62a4c34fdf4afb410fbaf86
humanhash:	east-alanine-jersey-speaker
File name:	1730537044dd01929d6467da9e0bc05cd98b8bc5df2688589dd2eaebbc46df2ed3bf068fc2733.dat-decoded
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	36'864 bytes
First seen:	2024-11-02 08:44:06 UTC
Last seen:	2024-11-12 18:23:45 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	384:1HqouAgAkffHnjuNWoAgLWanS3FLZcWzWCX+280wpkFMAfNLT2OZwxcV2v99IkH6:VzuAinEWaRC4QFm9YkOMh1kGq
TLSH	T13AF24B087FA04316CAFD7FF165B261171670E217D913E75E0CE88AAA3F27AC08D457A6
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	abuse_ch
Tags:	45-15-158-112--6767 AsyncRAT base64-decoded CryptersAndTools exe

abuse_ch

Malware dropped as base64 encoded payload

Intelligence

File Origin

# of uploads :

# of downloads :

394

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

1730537044dd01929d6467da9e0bc05cd98b8bc5df2688589dd2eaebbc46df2ed3bf068fc2733.dat-decoded

Verdict:

Malicious activity

Analysis date:

2024-11-02 09:04:34 UTC

Tags:

pastebin xworm remote

Link:

https://app.any.run/tasks/cbf0d2e8-5071-42eb-b845-3df98b1f94c0

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-10019837-0

Win.Packed.Loveletter-10023052-0

Win.Packed.Loveletter-10024677-0

Win.Packed.Msilzilla-10026193-0

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6725e69449e92a05dde264ab

Tags:

asyncrat stration micro remo

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm asyncrat backdoor hook keylogger njrat packed packer_detected rat vbnet

Link:

https://www.filescan.io/uploads/6725e692f392b832c9d036ed/reports/dc135181-b35b-4903-94b5-0e02b37f4516/overview

Verdict:

Malicious

Labled as:

Jalapeno.Generic

Link:

https://www.hybrid-analysis.com/sample/a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371

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/22d49d1e-0473-4c16-8e52-ccb425b85ba2

Result

Threat name:

AsyncRAT, XWorm

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1547388

Signature

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

.NET source code contains potential unpacker

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Connects to a pastebin service (likely for C&C)

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

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 AsyncRAT

Yara detected XWorm

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371

Detection:

xworm

Link:

https://mwdb.cert.pl/sample/a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371/

Threat name:

ByteCode-MSIL.Spyware.AsyncRAT

Status:

Malicious

First seen:

2024-10-29 23:10:32 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

31 of 38 (81.58%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ufw72wu7mlfgjacwr6pd42u2bmdqznnieau5xlmhvdpuqi7yynyq._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/241102-kqrvda1elg/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Legitimate hosting services abused for malware hosting/C2

Detect Xworm Payload

Xworm

Xworm family

Verdict:

Malicious

Tags:

rat xworm asyncrat asyncrat

YARA:

win_mal_XWorm MALWARE_Win_XWorm win_xworm_bytestring

Link:

https://app.threat.zone/submission/3c3a0fc0-0a01-4b28-987f-3a32a6a13c1c

Unpacked files

SH256 hash:

a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371

MD5 hash:

fccff79af62a4c34fdf4afb410fbaf86

SHA1 hash:

7fc71ef7fb4aa436b93ec4b6a825fee64501460f

Detections:

win_xworm_w0

Link:

https://www.unpac.me/results/23531699-78f8-4448-b6b6-87a7297b86f6/

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/a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371

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:	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:	jeFF0Falltrades

File information

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

dd01929d6467da9e0bc05cd98b8bc5df2688589dd2eaebbc46df2ed3bf068fc2

AsyncRAT

exe a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371

(this sample)

Dropped by

SHA256 dd01929d6467da9e0bc05cd98b8bc5df2688589dd2eaebbc46df2ed3bf068fc2

Dropped by

MD5 48817bf756a9bb1eb4da75ec96e14ea3

URLhaus

https://urlhaus.abuse.ch/url/3271235/

Delivery method

Distributed via web download

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

Comments

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commented on 2024-11-02 09:00:55 UTC

RAT King Parser (https://github.com/jeFF0Falltrades/rat_king_parser) Output:

{
"sha256": "a16dfd5a9f62ca6480568f9e3e6a9a0b070cb5a82029dbad87a8df4823f8c371",
"yara_possible_family": "xworm",
"key": "42bcf18389a3d6876a682ce91308d042bcf18389a3d6876a682ce91308d00500",
"salt": "None",
"config": {
"Sleep": 3,
"PasteUrl": "https://pastebin.com/raw/juxAi7cy",
"KEY": "<123456789>",
"SPL": "<Xwormmm>",
"Groub": "RAGNOROK54",
"USBNM": "USB.exe",
"Mutex": "aq3Fac3Pq9GHgZuk"
}
}