MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716. 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


XWorm


Vendor detections: 16


Intelligence 16 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716
SHA3-384 hash: d39b84b66e2a92cbd0508ca0d85753675e1afa241b26362a16eb52d834e1e37f4f2764496e3bba6713f4d35863ac0746
SHA1 hash: 062643ab42e18ad80c0be2f6457152892d98edee
MD5 hash: 563458fcc71435fb8f2c70aff621f6de
humanhash: gee-failed-delaware-cat
File name:BootstrapperNew.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:2'619'904 bytes
First seen:2025-02-08 15:02:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'751 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 49152:7ssXXgtwSyJjRsSo7C7YeWnKpIFhYqxVJpz275oWIXz+ztdkUlockc:4IwtwSyJVss7Y/DFhYqxVX+IXz+zTkeT
TLSH T126C533FDF6CD4AF0C1AA457DCBBEECB314359D16A2B2CCEC56463B0971A3084961268D
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):PE icon
dhash icon cc8e333333338ecc (6 x SalatStealer, 3 x DCRat, 3 x SheetRAT)
Reporter aachum
Tags:exe xworm


Avatar
iamaachum
https://www.youtube.com/watch?v=r8Wy92-jrnE => https://disk.yandex.ru/d/_-__qHaHyHeMPA

XWorm C2: boiko300-55617.portmap.host:55617

Intelligence

File Origin
# of uploads :
1
# of downloads :
467
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BootstrapperNew.exe
Verdict:
Malicious activity
Analysis date:
2025-02-08 14:56:33 UTC
Tags:
evasion xworm remote fody
Link:
https://app.any.run/tasks/e8b9104d-f171-4a49-93f8-84570c5e25db

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Packy-10033570-0
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Launching a process
Connection attempt to an infection source
Searching for the window
Сreating synchronization primitives
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Query of malicious DNS domain
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
MSIL.Cassiopeia.Generic
Link:
https://www.hybrid-analysis.com/sample/2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716
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/b977f1fe-a578-420a-aca4-2cd9bd280a41
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1610107
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
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Creates multiple autostart registry keys
Drops PE files to the user root directory
Drops PE files with benign system names
Found malware configuration
Joe Sandbox ML detected suspicious sample
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
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: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Schedule system process
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: System File Execution Location Anomaly
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 Costura Assembly Loader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1610107 Sample: BootstrapperNew.exe Startdate: 08/02/2025 Architecture: WINDOWS Score: 100 58 boiko300-55617.portmap.host 2->58 60 ip-api.com 2->60 68 Found malware configuration 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for URL or domain 2->72 74 20 other signatures 2->74 9 BootstrapperNew.exe 1 4 2->9         started        13 svchost.exe 2->13         started        15 svchost.exe 1 1 2->15         started        18 3 other processes 2->18 signatures3 process4 dnsIp5 52 C:\Users\user\AppData\Local\Temp\host.exe, PE32 9->52 dropped 54 C:\Users\user\...\BootstrapperNew (1).exe, PE32+ 9->54 dropped 56 C:\Users\user\...\BootstrapperNew.exe.log, CSV 9->56 dropped 86 Creates multiple autostart registry keys 9->86 88 Bypasses PowerShell execution policy 9->88 90 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->90 92 Adds a directory exclusion to Windows Defender 9->92 20 host.exe 15 6 9->20         started        25 powershell.exe 23 9->25         started        27 BootstrapperNew (1).exe 17 9->27         started        94 Antivirus detection for dropped file 13->94 96 Machine Learning detection for dropped file 13->96 66 127.0.0.1 unknown unknown 15->66 file6 signatures7 process8 dnsIp9 62 boiko300-55617.portmap.host 193.161.193.99, 49985, 49986, 49987 BITREE-ASRU Russian Federation 20->62 64 ip-api.com 208.95.112.1, 49722, 80 TUT-ASUS United States 20->64 50 C:\Users\user\svchost.exe, PE32 20->50 dropped 76 Antivirus detection for dropped file 20->76 78 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 20->78 80 Protects its processes via BreakOnTermination flag 20->80 84 7 other signatures 20->84 29 powershell.exe 20->29         started        32 powershell.exe 20->32         started        34 powershell.exe 20->34         started        38 2 other processes 20->38 82 Loading BitLocker PowerShell Module 25->82 36 conhost.exe 25->36         started        file10 signatures11 process12 signatures13 98 Loading BitLocker PowerShell Module 29->98 40 conhost.exe 29->40         started        42 conhost.exe 32->42         started        44 conhost.exe 34->44         started        46 conhost.exe 38->46         started        48 conhost.exe 38->48         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716/
Threat name:
ByteCode-MSIL.Trojan.Cassiopeia
Create hunting rule
Status:
Malicious
First seen:
2025-02-08 14:56:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fjyegxfnsiqar6tkybwlxdhwxstbrsegv4eijyvndjjyvr3344la._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
error
XWorm
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution persistence rat trojan
Link:
https://tria.ge/reports/250208-se6s6asqhp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection 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
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
boiko300-55617.portmap.host:55617
Verdict:
Malicious
Tags:
Win.Packed.Packy-10033570-0
YARA:
n/a
Link:
https://app.threat.zone/submission/6530f6b2-13fa-4d22-b941-b9bff86cc096
Unpacked files
SH256 hash:
2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716
MD5 hash:
563458fcc71435fb8f2c70aff621f6de
SHA1 hash:
062643ab42e18ad80c0be2f6457152892d98edee
Link:
https://www.unpac.me/results/d7bf4d81-d551-422f-9054-bfbb38ee5209/
SH256 hash:
c372c94338eaaa7ab2eb7c5b6d1c9fc5658ec62da7f5fcd04e2d4c72d900ea9f
MD5 hash:
ec429587b94b0288039bf1492e3350af
SHA1 hash:
acfd0ea4f9d321a898fed79e2e8e41e04620625b
Detections:
INDICATOR_EXE_Packed_Fody
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_RawPaste_URL
Create hunting rule
Link:
https://www.unpac.me/results/d7bf4d81-d551-422f-9054-bfbb38ee5209/
Parent samples :
2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716
fcd62f5f3f4ccaaf749a3435e750564894ba688129df32f3a27c01d60f97b676
SH256 hash:
2d14af2de763ff06398bfda12eab6bcdd8123905f054ff4c956871880b484291
MD5 hash:
180f933693bea6b35db91dcf7ee3b3c2
SHA1 hash:
640fdf2e197e7de4da5e60fe32a9dbc6280af268
Detections:
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/d7bf4d81-d551-422f-9054-bfbb38ee5209/
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2a70435cad92/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/2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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.

Web download

XWorm

Executable exe 2a70435cad922008fa6ac06cbb8cf6bca618c886af0884e2ad1a538ac77be716

(this sample)

  
Link
https://tria.ge/250208-r8yh7ssmcm/
  
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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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