MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a1f720bb5fc39e6b38e9ca7fd876022e9154f9ffabd4b6e936131348009597c. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1a1f720bb5fc39e6b38e9ca7fd876022e9154f9ffabd4b6e936131348009597c
SHA3-384 hash: 51502226fbe8d190bf6ab23fdbd1392fbfffc33039ede280d4863eeb8bb583101aaa6d397859815975e9d842e7bb79f4
SHA1 hash: 93046b916cdbfd3a1564ab5d80d468369a7d730b
MD5 hash: 37f3bb8491be6cfca016f93073edc214
humanhash: vegan-emma-foxtrot-hawaii
File name:TestBuild.exe
Download: download sample
Signature XWorm
Create hunting rule
File size:77'312 bytes
First seen:2023-05-13 22:57:58 UTC
Last seen:2023-05-14 18:42:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 1536:NSDIM+DnYZ7dGOFSe2VawMksNn1DLujZbOibbq/Eq6i6T4bO/0o0/Zwm4U:NS0McyGO7PwG9tLujZbO9YUOc1wm4U
Threatray 41 similar samples on MalwareBazaar
TLSH T1B373AE5C37E9451AE1FE6FB05DF162A1D738B6136803D71F64C1049A2627788CB607FA
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon d6aea13171b13311 (1 x XWorm)
Reporter JaffaCakes118
Tags:xworm

Intelligence

File Origin
# of uploads :
2
# of downloads :
116
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TestBuild.exe
Verdict:
Malicious activity
Analysis date:
2023-05-13 23:26:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/87a82c6e-a554-4fb9-8d28-b286a7fa0dd8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/389245/
Detection(s):
ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% directory
Creating a window
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd.exe packed schtasks.exe
Link:
https://www.filescan.io/uploads/6460161080bce17c1f296fcb/reports/90262cb9-5f8f-47a2-bbd5-a7750df11a76/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/1a1f720bb5fc39e6b38e9ca7fd876022e9154f9ffabd4b6e936131348009597c
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/50cd38c1-fd4b-4002-aaa9-3493079a8e71
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1232331
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 URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to capture screen (.Net source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 865313 Sample: TestBuild.exe Startdate: 14/05/2023 Architecture: WINDOWS Score: 100 22 Multi AV Scanner detection for domain / URL 2->22 24 Found malware configuration 2->24 26 Malicious sample detected (through community Yara rule) 2->26 28 9 other signatures 2->28 7 TestBuild.exe 1 2->7         started        process3 signatures4 30 Bypasses PowerShell execution policy 7->30 32 Adds a directory exclusion to Windows Defender 7->32 10 powershell.exe 19 7->10         started        12 powershell.exe 19 7->12         started        14 powershell.exe 19 7->14         started        process5 process6 16 conhost.exe 10->16         started        18 conhost.exe 12->18         started        20 conhost.exe 14->20         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1a1f720bb5fc39e6b38e9ca7fd876022e9154f9ffabd4b6e936131348009597c/
Threat name:
ByteCode-MSIL.Backdoor.XWormRAT
Create hunting rule
Status:
Malicious
First seen:
2023-05-11 11:22:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
26 of 37 (70.27%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dipxec5v7q46nm4otst73b3aelurkt477k6uw3utmeytjaajlf6a._file
Verdict:
malicious
Similar samples:
43eee6ad4f470b65b2a79760306c073f7e827d8b1f7ad1c95cbfa03298e27df2
XWorm
6179a69d0e85480eba50e73b18cea33da9a88d5e36c590d525a7b0474e7c2e07
XWorm
63d46c697ee100fbe7388416033ea0509130e12f144decb1a913e3dc8b82f6ba
XWorm
6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e
XWorm
6f2e22d541680c151da164b02f916a3d72da0517b2f052f7356d05e8b374690b
XWorm
7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448
XWorm
9e243e905334ba6b11064b13d28ee2141f6c940aee3f4665b5ecac426d80a009
XWorm
b15e94a6fde3f1813f38baeb354ff8a63a0bf47cadcf3b988595df6667747f07
XWorm
+ 31 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm persistence rat trojan
Link:
https://tria.ge/reports/230513-2x1jjacb8v/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Drops startup file
Executes dropped EXE
Xworm
Malware Config
C2 Extraction:
monkeys11-39982.portmap.host:39982
Unpacked files
SH256 hash:
1a1f720bb5fc39e6b38e9ca7fd876022e9154f9ffabd4b6e936131348009597c
MD5 hash:
37f3bb8491be6cfca016f93073edc214
SHA1 hash:
93046b916cdbfd3a1564ab5d80d468369a7d730b
Detections:
XWorm
Create hunting rule
Link:
https://www.unpac.me/results/a756a7c3-288a-49a2-81e7-c9d630cb5e2c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Eternalblue
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1a1f720bb5fc39e6b38e9ca7fd876022e9154f9ffabd4b6e936131348009597c

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: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: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.

Cape
Cape
https://www.capesandbox.com/analysis/389245/

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