MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63b2d70007ce38eb15e9daa8d2ecdf2414beb03a3b0d2e34cbec5fa1533c7f20. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 63b2d70007ce38eb15e9daa8d2ecdf2414beb03a3b0d2e34cbec5fa1533c7f20
SHA3-384 hash: ffc2475c059f9df562975296a228154eb649a72703ce666516b4fa15492baa7aac91c1a8c9cd9eae01e3daf8eece7cdc
SHA1 hash: 0f66917c41fc16517f5bc3731c9f327a96af25a4
MD5 hash: 71659eb4f8d97cf977f0ee542e69e71c
humanhash: burger-football-aspen-utah
File name:Bootstrapper.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:2'097'152 bytes
First seen:2025-04-29 23:58:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'653 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:e588yXZ6CP1bvrOQHZ24MvRjVG54gWz27WeAJ:0yXPPl924MUP
Threatray 1'174 similar samples on MalwareBazaar
TLSH T109A55CBCC4572202C2BC2A72AD6A39458AE96EF0C0D6BBD40E73FF9C83B17441953576
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
Reporter Yuyuko_Saigyouji
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
441
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Bootstrapper.exe
Verdict:
Malicious activity
Analysis date:
2025-04-30 00:02:08 UTC
Tags:
evasion pastebin auto-reg auto-startup remote xworm uac
Link:
https://app.any.run/tasks/2ed32835-9afe-4e16-9bdb-ace6aad15579

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XWorm
Create hunting rule
Link:
https://www.capesandbox.com/analysis/5060/
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68116dc5c8b2e86d0ac4d0cf
Tags:
asyncrat virus spawn micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Searching for the window
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Launching a process
Creating a window
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated overlay overlay packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/681167ce218c4a98ade837d9/reports/ae6ec706-f727-47b3-b7b3-de4872226fc0/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/63b2d70007ce38eb15e9daa8d2ecdf2414beb03a3b0d2e34cbec5fa1533c7f20
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/55979a67-9b94-46e6-8619-9bd9be735634
Result
Threat name:
AsyncRAT, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1677681
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Check if machine is in data center or colocation facility
Connects to a pastebin service (likely for C&C)
Connects to many ports of the same IP (likely port scanning)
Contains functionality to capture screen (.Net source)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Drops PE files with benign system names
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Schedule system process
Sigma detected: Suspect Svchost Activity
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1677681 Sample: Bootstrapper.exe Startdate: 30/04/2025 Architecture: WINDOWS Score: 100 73 pastebin.com 2->73 75 libetolo-34967.portmap.io 2->75 77 ip-api.com 2->77 87 Suricata IDS alerts for network traffic 2->87 89 Found malware configuration 2->89 91 Malicious sample detected (through community Yara rule) 2->91 95 18 other signatures 2->95 10 Bootstrapper.exe 4 2->10         started        13 svchost.exe 2->13         started        16 svchost.exe 2->16         started        18 10 other processes 2->18 signatures3 93 Connects to a pastebin service (likely for C&C) 73->93 process4 dnsIp5 63 C:\Users\user\AppData\Roaming\Output.exe, PE32 10->63 dropped 65 C:\Users\user\AppData\...\HM_-_Spoofer_1.exe, PE32+ 10->65 dropped 67 C:\Users\user\...\Bootstrapper.exe.log, CSV 10->67 dropped 21 Output.exe 3 10->21         started        25 HM_-_Spoofer_1.exe 1 10->25         started        105 Changes security center settings (notifications, updates, antivirus, firewall) 13->105 27 MpCmdRun.exe 13->27         started        107 Antivirus detection for dropped file 16->107 79 127.0.0.1 unknown unknown 18->79 file6 signatures7 process8 file9 61 C:\Users\user\AppData\Roaming\XClient.exe, PE32 21->61 dropped 97 Antivirus detection for dropped file 21->97 99 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 21->99 29 XClient.exe 167 29 21->29         started        101 Multi AV Scanner detection for dropped file 25->101 34 conhost.exe 25->34         started        36 conhost.exe 27->36         started        signatures10 process11 dnsIp12 81 libetolo-34967.portmap.io 193.161.193.99, 34967, 49700, 49701 BITREE-ASRU Russian Federation 29->81 83 ip-api.com 208.95.112.1, 49687, 80 TUT-ASUS United States 29->83 85 pastebin.com 172.67.25.94, 443, 49699 CLOUDFLARENETUS United States 29->85 69 C:\Users\user\AppData\Roaming\svchost.exe, PE32 29->69 dropped 71 C:\Users\user\AppData\Local\Temp\cckgpv.EXE, MS-DOS 29->71 dropped 109 Antivirus detection for dropped file 29->109 111 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 29->111 113 Protects its processes via BreakOnTermination flag 29->113 115 7 other signatures 29->115 38 powershell.exe 29->38         started        41 powershell.exe 29->41         started        43 powershell.exe 29->43         started        45 4 other processes 29->45 file13 signatures14 process15 signatures16 103 Loading BitLocker PowerShell Module 38->103 47 conhost.exe 38->47         started        49 conhost.exe 41->49         started        51 conhost.exe 43->51         started        53 conhost.exe 45->53         started        55 conhost.exe 45->55         started        57 conhost.exe 45->57         started        59 2 other processes 45->59 process17
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/63b2d70007ce38eb15e9daa8d2ecdf2414beb03a3b0d2e34cbec5fa1533c7f20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/63b2d70007ce38eb15e9daa8d2ecdf2414beb03a3b0d2e34cbec5fa1533c7f20/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2025-04-29 23:59:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=moznoaahzy4owfpj3kunf3g7eqkl5mb2hmgs4ngl5rp2cuz4p4qa._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
3d6e7e00580e1b17849dcd6c80cbe10b09b2e677deda5016c3baba36517dd462
AsyncRAT
90e5d4c94308393080431d375a33aeb1b8219c5448d64afb787bb30ee01dd3c6
AsyncRAT
92054411881f9d2321b1735ca6440be8268f5f43532836b6f3854e515ad736ac
AsyncRAT
b4d6c042e0ba3b560a4fc22e607bbe6645e5fe2c7e928ee6c564d49f3b50dda1
AsyncRAT
error
AsyncRAT
+ 1'164 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/250429-31stjasydz/
Behaviour
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Xworm family
Verdict:
Malicious
Tags:
external_ip_lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/2be8ce6c-1767-4a0c-95d5-f315192bd5f2
Unpacked files
SH256 hash:
63b2d70007ce38eb15e9daa8d2ecdf2414beb03a3b0d2e34cbec5fa1533c7f20
MD5 hash:
71659eb4f8d97cf977f0ee542e69e71c
SHA1 hash:
0f66917c41fc16517f5bc3731c9f327a96af25a4
Link:
https://www.unpac.me/results/d11b6c23-9f97-44eb-bdf3-e518de3d4f63/
SH256 hash:
ac28e4f26b3e634f61cedc916fc9c215adb811d46ae992e9740981678a70b6f1
MD5 hash:
e713e521a80e71ff2b0d1061d8ef1c88
SHA1 hash:
0e08aad34389419b7c1c42272eccdd1e002b9481
Detections:
win_xworm_w0
Create hunting rule
XWorm
Create hunting rule
win_xworm_bytestring
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
Link:
https://www.unpac.me/results/d11b6c23-9f97-44eb-bdf3-e518de3d4f63/
Malware family:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/63b2d70007ce/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/63b2d70007ce38eb15e9daa8d2ecdf2414beb03a3b0d2e34cbec5fa1533c7f20

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/5060/

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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