MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f. 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


Formbook


Vendor detections: 17


Intelligence 17 IOCs YARA 19 File information Comments
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SHA256 hash: 37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f
SHA3-384 hash: 950a942717b1a946037d2c77d45c660efb9f6dba6227686813532ff9f19a6131c65727f7d1cdc5c076f8b63f0734829c
SHA1 hash: 26c27b236bed8cb2046acddcc1c7d7b642b7c610
MD5 hash: 31d745f5009eeda2da51b2d05d9711c5
humanhash: alabama-oven-wyoming-rugby
File name:XClient.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:65'536 bytes
First seen:2025-03-25 10:29:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:x9uMTNt2LZLDmdieTnel/wn6a92UunC/bp63J3YAT56mOSmt0hfWFZZCODR:xnfqLDlZ66Uzbp63pYAT56mOna4JjDR
Threatray 1'304 similar samples on MalwareBazaar
TLSH T194538C1C73E50525E1FE9BF518B62212C778F6639C03C76FA8C9418E1727A8ACE417E9
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter BastianHein
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
458
Origin country :
CL CL
Vendor Threat Intelligence
Detection(s):
Win.Packed.njRAT-10002074-1
Create hunting rule

Win.Packed.Msilzilla-10002982-0
Create hunting rule

Win.Packed.Msilzilla-10019837-0
Create hunting rule

Win.Packed.Loveletter-10023052-0
Create hunting rule

Win.Dropper.Nanocore-10024427-0
Create hunting rule

Win.Packed.Loveletter-10024677-0
Create hunting rule

Win.Packed.Msilzilla-10024808-0
Create hunting rule

Win.Packed.Msilzilla-10026193-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e28580acb044ea849eb124
Tags:
asyncrat dropper micro remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Creating a file in the %AppData% directory
Launching a process
Creating a window
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:
anti-vm asyncrat backdoor config-extracted fingerprint lolbin obfuscated obfuscated rat reconnaissance schtasks vbnet xworm
Link:
https://www.filescan.io/uploads/67e285b8de7b23ce17217f1e/reports/d530e24d-959c-4867-8dc5-d4dd4a81852c/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/726e97d7-4e0d-44c6-8571-354258de5b06
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1647906
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
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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: Powershell Base64 Encoded MpPreference Cmdlet
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 XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1647906 Sample: XClient.exe Startdate: 25/03/2025 Architecture: WINDOWS Score: 100 40 ip-api.com 2->40 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 10 other signatures 2->52 8 XClient.exe 15 6 2->8         started        13 RunShell.exe 2->13         started        15 RunShell.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 42 89.39.121.169, 49730, 49731, 49732 NG-ASSosBucuresti-Ploiestinr42-44RO Romania 8->42 44 ip-api.com 208.95.112.1, 49720, 80 TUT-ASUS United States 8->44 38 C:\Users\user\AppData\Roaming\RunShell.exe, PE32 8->38 dropped 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->56 58 Protects its processes via BreakOnTermination flag 8->58 60 Bypasses PowerShell execution policy 8->60 66 3 other signatures 8->66 19 powershell.exe 23 8->19         started        22 powershell.exe 23 8->22         started        24 powershell.exe 23 8->24         started        26 2 other processes 8->26 62 Antivirus detection for dropped file 13->62 64 Multi AV Scanner detection for dropped file 13->64 file6 signatures7 process8 signatures9 54 Loading BitLocker PowerShell Module 19->54 28 conhost.exe 19->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        36 conhost.exe 26->36         started        process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f
Detection:
xworm
Create hunting rule
Link:
https://mwdb.cert.pl/sample/37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f/
Threat name:
ByteCode-MSIL.Spyware.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2025-03-25 10:25:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g4zq2gpji6osew7tsngpdn53em5ny27qzdehn4mbxakhlhl4bmhq._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
066cffd2ba05642d4bcadf466fa00ba50210b6aed526c07382924c7aaece384e
Formbook
37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f
Formbook
3eb811c7b68a84aa9c53851465ebbb82dc1074c883cca018a6aa98d6216bf491
Formbook
6a4c87064969595078355dae42918fc19c3b71f422d6b5af9cee50a2af2d7b88
Formbook
b6a02bede9af95adb28ce056584dfed53a2d70a8bd7b76c919392359139d39f6
Formbook
error
Formbook
fc975db05fc20acc0c6bfefc517f9c54487857c0332877036408035a95677a68
Formbook
+ 1'294 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm rat trojan
Link:
https://tria.ge/reports/250325-mjxhdsyjz7/
Behaviour
Suspicious use of AdjustPrivilegeToken
Looks up external IP address via web service
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
89.39.121.169:9000
Verdict:
Malicious
Tags:
rat xworm Win.Packed.njRAT-10002074-1 external_ip_lookup
YARA:
win_mal_XWorm EXE_RAT_XWorm_April2024 MALWARE_Win_XWorm win_xworm_bytestring
Link:
https://app.threat.zone/submission/dc642fb4-4be1-43b4-a4b1-6c9178cf5993
Unpacked files
SH256 hash:
37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f
MD5 hash:
31d745f5009eeda2da51b2d05d9711c5
SHA1 hash:
26c27b236bed8cb2046acddcc1c7d7b642b7c610
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/51ffeff7-47ec-4b25-8470-ee1f8bb7c32f/
Parent samples :
6a4c87064969595078355dae42918fc19c3b71f422d6b5af9cee50a2af2d7b88
37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f
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/37330d19e9479d225bf3934cf1b7bb233adc6bf0c8c876f181b814759d7c0b0f

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:ByteCode_MSIL_Backdoor_AsyncRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
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:EXE_RAT_XWorm_April2024
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
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: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
Rule name:Windows_Generic_Threat_d568682a
Create hunting rule
Author:Elastic Security
Rule name:win_xworm_bytestring
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm
Rule name:win_xworm_w0
Create hunting rule
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:xworm
Create hunting rule
Author:jeFF0Falltrades
Rule name:XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
Rule name:xworm_kingrat
Create hunting rule
Author:jeFF0Falltrades

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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