MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 45a553140e3cfd1dc8293337f805a009694f0c8886a3d8f0a8a92ce98e9e708e. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 45a553140e3cfd1dc8293337f805a009694f0c8886a3d8f0a8a92ce98e9e708e
SHA3-384 hash: 5db515baa41a2f26b7dbdb0e9cc2989c954d7397dd8da5bd178141afa0859d3f71b965cd0b7f7fa411618f74e0d3ce0e
SHA1 hash: 410d3bd56cecdccda0af527d8acb75b268e4ef0a
MD5 hash: 91c204e04d791fc79f8b7ce2578ba0ba
humanhash: lake-pluto-pip-colorado
File name:solarabootstrapper.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:345'088 bytes
First seen:2024-07-29 22:50:17 UTC
Last seen:2024-07-29 23:40:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 6144:tbdxUMzCtVKDX4TSRyZAufIja8esjGOSzL4f9cvcDSghH313kcP1XMd+rb:hUMvX4uRyZAIzs3SzUWkDSwlDXMdu
Threatray 756 similar samples on MalwareBazaar
TLSH T108742309C7288AF6CC9CA9BBA81321104543B479AB97377763CCF9A945316774AFF08D
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 Chainskilabs
Tags:exe xworm

Intelligence

File Origin
# of uploads :
2
# of downloads :
366
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
solarabootstrapper.exe
Verdict:
Malicious activity
Analysis date:
2024-07-29 22:54:30 UTC
Tags:
evasion github pastebin qrcode
Link:
https://app.any.run/tasks/21c9870b-efa4-498d-91a5-b245a02e6896

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a81cd8c06bd32e596e655c
Tags:
Execution Network Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
DNS request
Using the Windows Management Instrumentation requests
Connection attempt
Sending a custom TCP request
Searching for synchronization primitives
Sending an HTTP GET request
Creating a process with a hidden window
Launching a process
Creating a window
Modifying a system file
Creating a file in the Windows subdirectories
Creating a file in the Program Files subdirectories
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed vbnet
Link:
https://www.filescan.io/uploads/66a81cd69149fd55f9922b49/reports/4961532b-b99d-4b4b-abb1-9e7630a992e9/overview
Verdict:
Malicious
Labled as:
MSIL.Packy.Generic
Link:
https://www.hybrid-analysis.com/sample/45a553140e3cfd1dc8293337f805a009694f0c8886a3d8f0a8a92ce98e9e708e
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/21b9e417-f20b-40dd-ab19-e5c52ffc1ac5
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1484391
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
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Generic Downloader
Yara detected Powershell download and execute
Yara detected Telegram RAT
Yara detected Telegram Recon
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1484391 Sample: solarabootstrapper.exe Startdate: 30/07/2024 Architecture: WINDOWS Score: 100 47 pastebin.com 2->47 49 ip-api.com 2->49 51 9 other IPs or domains 2->51 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 Antivirus / Scanner detection for submitted sample 2->69 73 16 other signatures 2->73 9 solarabootstrapper.exe 4 2->9         started        signatures3 71 Connects to a pastebin service (likely for C&C) 47->71 process4 file5 41 C:\Users\user\AppData\Local\Temp\solara.exe, PE32 9->41 dropped 43 C:\Users\user\AppData\...\Bootstrapper.exe, PE32 9->43 dropped 45 C:\Users\user\...\solarabootstrapper.exe.log, CSV 9->45 dropped 77 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->77 13 solara.exe 14 3 9->13         started        17 Bootstrapper.exe 15 6 9->17         started        signatures6 process7 dnsIp8 57 ip-api.com 208.95.112.1, 49714, 80 TUT-ASUS United States 13->57 79 Antivirus detection for dropped file 13->79 81 Machine Learning detection for dropped file 13->81 83 Bypasses PowerShell execution policy 13->83 87 2 other signatures 13->87 20 powershell.exe 23 13->20         started        59 edge-term4-ams2.roblox.com 128.116.21.4, 443, 49711, 49717 ROBLOX-PRODUCTIONUS United States 17->59 61 github.com 140.82.121.4, 443, 49713 GITHUBUS United States 17->61 63 2 other IPs or domains 17->63 37 C:\Users\user\...\BootstrapperV1.03.exe, PE32 17->37 dropped 85 Multi AV Scanner detection for dropped file 17->85 23 BootstrapperV1.03.exe 14 7 17->23         started        27 conhost.exe 17->27         started        file9 signatures10 process11 dnsIp12 75 Loading BitLocker PowerShell Module 20->75 29 conhost.exe 20->29         started        31 WmiPrvSE.exe 20->31         started        53 pastebin.com 172.67.19.24, 443, 49716 CLOUDFLARENETUS United States 23->53 55 www.nodejs.org 104.20.23.46, 443, 49718 CLOUDFLARENETUS United States 23->55 39 \Device\ConDrv, ISO-8859 23->39 dropped 33 conhost.exe 23->33         started        35 WerFault.exe 23->35         started        file13 signatures14 process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/45a553140e3cfd1dc8293337f805a009694f0c8886a3d8f0a8a92ce98e9e708e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/45a553140e3cfd1dc8293337f805a009694f0c8886a3d8f0a8a92ce98e9e708e/
Threat name:
ByteCode-MSIL.Trojan.XWormRAT
Create hunting rule
Status:
Malicious
First seen:
2024-07-29 22:51:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iwsvgfaoht6r3sbjgm37qbnabfuu6deiq2r5r4fivewotdu6ocha._file
Verdict:
malicious
Similar samples:
098a170344a4ca7efe3e0c8b48c25a64fe0570b68eb0f3032c229e81597c1fbc
XWorm
45a553140e3cfd1dc8293337f805a009694f0c8886a3d8f0a8a92ce98e9e708e
XWorm
77a7db0fbc13dea55b22b02fec1df3a7000f1850a92bc6d251def80526b8b1d6
XWorm
a0bcad23f8cd5357b031ec1bda2949166df60bba7b0acc6f83c81167b44eefb0
XWorm
ba61b838a6b159d1d8f6fbbd1c80016fe7277225d1847de9ae50d0d83b29f9f1
XWorm
cfb2ea9f75193d98525c948e22aff0d14ea6867af0efef9efa9f3bce5ed196a6
XWorm
+ 746 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution persistence rat trojan
Link:
https://tria.ge/reports/240729-2ssywsvbnp/
Behaviour
Modifies data under HKEY_USERS
Modifies registry class
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
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Adds Run key to start application
Blocklisted process makes network request
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
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
Malware Config
C2 Extraction:
positive-you.gl.at.ply.gg:16734
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0bda7cdb-4df1-4686-98be-d63199eb79f2
Unpacked files
SH256 hash:
3a775ca8966e005627d3f2fae3bea989339441f52f10cb4dddfe57bac9ebd3b5
MD5 hash:
e42b2da1e86b04938fcec7b8ca5d1320
SHA1 hash:
4e3918970c863989a6245fb36a78759f95a737e3
Detections:
XWorm
Create hunting rule
Link:
https://www.unpac.me/results/3a3245ca-717a-4ac0-bd96-8f486921fa6f/
SH256 hash:
56e72fbff8a833e9dd8ddc3f8b5318f917da54e06694197e9c91c7d69b850f8b
MD5 hash:
e17359299ed4ff8eb0bde32bfa679980
SHA1 hash:
45638e3899aaae7127793efaa707be5527228834
Link:
https://www.unpac.me/results/3a3245ca-717a-4ac0-bd96-8f486921fa6f/
SH256 hash:
45a553140e3cfd1dc8293337f805a009694f0c8886a3d8f0a8a92ce98e9e708e
MD5 hash:
91c204e04d791fc79f8b7ce2578ba0ba
SHA1 hash:
410d3bd56cecdccda0af527d8acb75b268e4ef0a
Link:
https://www.unpac.me/results/3a3245ca-717a-4ac0-bd96-8f486921fa6f/
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/45a553140e3cfd1dc8293337f805a009694f0c8886a3d8f0a8a92ce98e9e708e

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: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

File information

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

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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