MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d. 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 6 File information Comments

SHA256 hash:	557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d
SHA3-384 hash:	4dad43a7e4e15c406aa325e2e2e449c7a88b655d6b3fc80a4520271b298e0db2aee94f27cec81f3b3730ca3ef56603e7
SHA1 hash:	c0573ba916b91e27c9dd5c0c4c33568f2ec31256
MD5 hash:	b295e6c0bf163174ddcf99bf7b2b3291
humanhash:	maine-april-quebec-undress
File name:	RFQ.pdf.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	605'696 bytes
First seen:	2024-12-13 12:04:58 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:qjlIpHtMPku+l0CPPWvn0JHtXDu/WJ9ILecoAnGRfeQeNFz6I:qjlIhSPd+pWgDvCHGRoNJ6
Threatray	2'960 similar samples on MalwareBazaar
TLSH	T10CD49EC03B267711DEACB934853AEDBC52552E74B00479F3AEED2B57B69D112AA0CF40
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika	pebin
File icon (PE):
dhash icon	f0cc862b23b2ccf0 (8 x Formbook, 2 x DarkCloud, 1 x VIPKeylogger)
Reporter	TeamDreier
Tags:	AsyncRAT exe

Intelligence

File Origin

# of uploads :

# of downloads :

421

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

RFQ.pdf.exe

Verdict:

Malicious activity

Analysis date:

2024-12-13 12:08:30 UTC

Tags:

remote xworm crypto-regex

Link:

https://app.any.run/tasks/a8dcaa10-1e22-430e-83b3-20bf0789bed2

Note:

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

Detection(s):

SecuriteInfo.com.BackDoor.AgentTeslaNET.37.4034.26824.UNOFFICIAL

Win.Packed.Generic-10039123-0

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=675c246289dbe2162350f3de

Tags:

underscore autorun

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 file in the %AppData% directory

Connection attempt

Setting a global event handler for the keyboard

Enabling autorun by creating a file

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

masquerade packed packed packer_detected

Link:

https://www.filescan.io/uploads/675c22fad0bf6a811f2dbdd1/reports/8f3882f4-4fa5-41f9-9df2-30ee7d57a9bc/overview

Verdict:

Malicious

Labled as:

Trojan.Autoruns.Generic

Link:

https://www.hybrid-analysis.com/sample/557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d

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:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/fde899f8-d99b-4adc-bf4d-43e5695e5a7c

Result

Threat name:

XWorm

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1574655

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

Antivirus detection for dropped file

C2 URLs / IPs found in malware configuration

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

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

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

Sample uses string decryption to hide its real strings

Sigma detected: Suspicious Double Extension File Execution

Uses an obfuscated file name to hide its real file extension (double extension)

Yara detected AntiVM3

Yara detected XWorm

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d/

Threat name:

ByteCode-MSIL.Backdoor.FormBook

Status:

Malicious

First seen:

2024-12-12 12:41:45 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

27 of 38 (71.05%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=kv7hisx6uqlnr52opkmxxtym4wwnbwdo623ppsfrnygz6m4npbwq._file

Verdict:

malicious

Label(s):

unknown_loader_037

xworm

AsyncRAT

557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d

AsyncRAT

62b96f7ff4146f33146f2c134e2bfe2ad3bc2df63f1276c9eb6ad1af5952940e

AsyncRAT

936734f1d7506609cadbd409daa2bef1009cfa72b386a2dc09933e586e6b463b

AsyncRAT

b22198ac3df18326aba01db3b50038e880327bad5ec59cc248848cd98d5eb0f6

AsyncRAT

error

AsyncRAT

fe8e63e7e59a274abab2a40d63458baec9db24511a52c3f1151a70fbb7e3345d

AsyncRAT

+ 2'950 additional samples on MalwareBazaar

Result

Malware family:

xworm

Score:

10/10

Tags:

family:xworm discovery rat trojan

Link:

https://tria.ge/reports/241213-n86m2azkck/

Behaviour

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Drops startup file

Loads dropped DLL

Detect Xworm Payload

Xworm

Xworm family

Malware Config

C2 Extraction:

154.39.0.138:7000

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/4b730dbc-3e6e-4b4f-a930-2954958f43c9

Unpacked files

SH256 hash:

117c984a4b6c0bc0d29ee3bee08babe51bf8e5e9288726974c200fd5ca58ed10

MD5 hash:

bc07fcf586482a89d878684072409c5a

SHA1 hash:

ca195505dd9659666eb029983f6e189ce316ae9e

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

Link:

https://www.unpac.me/results/f5763644-dc1f-4f77-a6ef-f6377bf680d8/

Parent samples :
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SH256 hash:

7001c8e4c4078e733196e83c46c8450c5df68ffbbac6a5e2af26708b08064c6c

MD5 hash:

aaa64888fe9e079b12bb4f8d16161a27

SHA1 hash:

7f2806036db28f716dbc413dc000f04936e0d7b4

Detections:

XWorm

win_xworm_w0

MALWARE_Win_XWorm

win_mal_XWorm

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

win_xworm_bytestring

MALWARE_Win_AsyncRAT

Link:

https://www.unpac.me/results/f5763644-dc1f-4f77-a6ef-f6377bf680d8/

SH256 hash:

1726039210c9283c649e2d0306c0f355ff811370531bf4db1c364011289404e9

MD5 hash:

9d396f7ffd24793a22a37293469497a5

SHA1 hash:

397652e69f05c26a7b4eed57bc79b1a2c836abab

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/f5763644-dc1f-4f77-a6ef-f6377bf680d8/

SH256 hash:

557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d

MD5 hash:

b295e6c0bf163174ddcf99bf7b2b3291

SHA1 hash:

c0573ba916b91e27c9dd5c0c4c33568f2ec31256

Link:

https://www.unpac.me/results/f5763644-dc1f-4f77-a6ef-f6377bf680d8/

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/557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d

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:	NET Create hunting rule
Author:	malware-lu

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:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

AsyncRAT

exe 557e744afea416d8f74e7a997bcf0ce5acd0d86ef6b6f7c8b16e0d9f338d786d

(this sample)

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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