MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2. 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: 16


Intelligence 16 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2
SHA3-384 hash: f9d8c0f885c9e1813b25c58a445e4e67c5fd93a52b9b528a68e3b63091e70092ec9ad849e761936af2ff281ac451c416
SHA1 hash: 419fdb34bacf7fcc9b955bdbca7e4cf9d03e6877
MD5 hash: 458f7cbc40f24ca3257cb3803f1a817c
humanhash: louisiana-twelve-magnesium-carpet
File name:Swift copy.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:633'856 bytes
First seen:2024-05-21 11:44:04 UTC
Last seen:2024-05-27 10:17:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:6WET/mr9K+22BEEzFatnd/WeHK4KMSMOV4Tu4Cbpb3W/KuBvnqMUpeNW/:6Wtb3BE/Zq4KJLGT/6bG
Threatray 13 similar samples on MalwareBazaar
TLSH T1C5D4CFAD364175DFC85BCD39C9A91C24AA5179BB830BD683919331AC8A0EAC7CF505F3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter adrian__luca
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
360
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
Verdict:
Malicious activity
Analysis date:
2024-05-21 12:04:19 UTC
Tags:
remote xworm
Link:
https://app.any.run/tasks/0f63a9ff-d193-4ba2-9a5f-eed6a5912766

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2853.11499.19672.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Tags:
Banker Encryption Execution Generic Network Stealth Malware Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed xworm
Link:
https://www.filescan.io/uploads/664c8942d7fb0506c93fa2c1/reports/32f8d926-3d2e-48d7-baea-f676aede2d93/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9edcf68d-8757-42f8-b158-7a29750961c7
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1444947
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
Sample uses string decryption to hide its real strings
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1444947 Sample: Swift copy.exe Startdate: 21/05/2024 Architecture: WINDOWS Score: 100 61 baldur1.duckdns.org 2->61 65 Snort IDS alert for network traffic 2->65 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 73 16 other signatures 2->73 8 Swift copy.exe 7 2->8         started        12 AkyTYQmExJ.exe 5 2->12         started        14 Swift copy.exe 2->14         started        16 Swift copy.exe 2->16         started        signatures3 71 Uses dynamic DNS services 61->71 process4 file5 57 C:\Users\user\AppData\...\AkyTYQmExJ.exe, PE32 8->57 dropped 59 C:\Users\user\AppData\Local\...\tmp6477.tmp, XML 8->59 dropped 77 Adds a directory exclusion to Windows Defender 8->77 79 Injects a PE file into a foreign processes 8->79 18 Swift copy.exe 1 7 8->18         started        22 powershell.exe 23 8->22         started        25 powershell.exe 23 8->25         started        35 2 other processes 8->35 81 Multi AV Scanner detection for dropped file 12->81 83 Machine Learning detection for dropped file 12->83 27 schtasks.exe 12->27         started        29 AkyTYQmExJ.exe 12->29         started        31 schtasks.exe 14->31         started        33 Swift copy.exe 14->33         started        37 2 other processes 16->37 signatures6 process7 dnsIp8 63 baldur1.duckdns.org 94.156.68.231, 3360, 49708 TERASYST-ASBG Bulgaria 18->63 55 C:\Users\user\AppData\...\Swift copy.exe, PE32 18->55 dropped 39 WerFault.exe 18->39         started        75 Loading BitLocker PowerShell Module 22->75 41 conhost.exe 22->41         started        43 WmiPrvSE.exe 22->43         started        45 conhost.exe 25->45         started        47 conhost.exe 27->47         started        49 conhost.exe 31->49         started        51 conhost.exe 35->51         started        53 conhost.exe 37->53         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2024-05-20 21:12:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xnl2grn73wzko6oui75r6nftnpyi24dzhprhaxmverbfjyte4hra._file
Verdict:
malicious
Similar samples:
2042bdcc5e440b757cd0597bb185d6cde9659b0f7950809acf448a27db3e7b6f
AsyncRAT
23c415fced41205b0d6036306a611430af76aaf221ac0bddf2871ce787acdfda
AsyncRAT
5a37d37c6e25e6f8f3e181dbc9b6ed6f1e173cb4d7ed4c8bd914e8c7bef14078
AsyncRAT
9911742dece406745ed3fdaf47f07a346ab5d2ce30c561968dadb7a0534684de
AsyncRAT
+ 3 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution persistence rat trojan
Link:
https://tria.ge/reports/240521-nwr9wacd7y/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Drops startup file
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
baldur1.duckdns.org:3360
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/21ce14ae-06aa-4d84-8eae-866bae621f7a
Unpacked files
SH256 hash:
73eba06a7811038e7f291a7ebe715307b3bdecd8bad25577cf5196a81e2ab567
MD5 hash:
71f0041667d5e3ea0d269105a74e2b4a
SHA1 hash:
ffc617b42aff2ac376a7e8275d10a35630b68ce7
Link:
https://www.unpac.me/results/58630d99-30f6-42ab-9fa1-154e73f23469/
SH256 hash:
f540e8d603962027b3a1f8b86d035281bfbdd3a05a621ead255825bc2082632a
MD5 hash:
d172f59251b97b415b621d302e1be2b7
SHA1 hash:
b1534e603749c901b5ac185f20e281f6be7fa908
Link:
https://www.unpac.me/results/58630d99-30f6-42ab-9fa1-154e73f23469/
SH256 hash:
69b9ad6a3b8f5b8e5e273dba18b16f6cef9a0b97a79f3957426ac9dac842acef
MD5 hash:
9151499e954c57edef93e11729a4aca5
SHA1 hash:
5d6e1de5234651f5ef5e72ebabd576816ba4a036
Link:
https://www.unpac.me/results/58630d99-30f6-42ab-9fa1-154e73f23469/
SH256 hash:
0eb85bec6793fcbcf9e6d2505c900dccb21e7b2016d50dc0f1531777da16a048
MD5 hash:
e2e13793a14c8d3292e5e3b8ca7086df
SHA1 hash:
1731b6b88860ed897e521e05ffceaa22dd7641b1
Detections:
XWorm
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/58630d99-30f6-42ab-9fa1-154e73f23469/
SH256 hash:
bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2
MD5 hash:
458f7cbc40f24ca3257cb3803f1a817c
SHA1 hash:
419fdb34bacf7fcc9b955bdbca7e4cf9d03e6877
Link:
https://www.unpac.me/results/58630d99-30f6-42ab-9fa1-154e73f23469/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bb57a345bfdd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AsyncRAT
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2

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: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: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

File information

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

Malspam

AsyncRAT

Executable exe bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2

(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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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