MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30
SHA3-384 hash: 09ca7384759781a68762892dc459e53d05c5177ccbee6b9347d418b1da95622dc38cc90645a9a6dc81e77b3f5d3ca0c0
SHA1 hash: 7338ef9ddb0b59228b31c6b7931fae04ace344e8
MD5 hash: edd7441051bbf509ef1052d9f2a02c8f
humanhash: neptune-four-high-finch
File name:Output.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:200'704 bytes
First seen:2024-04-24 00:50:53 UTC
Last seen:2024-04-24 01:29:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 3072:LhAMBSpVNwpB7/LaX6No7INoSXlb2Q4u3lriJYzr9B/erenNecMnq+ECqmIkk6:LaP+fvLW7IVXliQz3l//3Pyq+RqmI
TLSH T1D91412C1DA6428EBD16A0FB209570A7516A06E70FC3E597733CA9E8F50C75E6F372028
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 bobross_malware2
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
301
Origin country :
US US
Vendor Threat Intelligence
Malware family:
redline
Create hunting rule
ID:
1
File name:
500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30.exe
Verdict:
Malicious activity
Analysis date:
2024-04-24 04:17:36 UTC
Tags:
evasion redline
Link:
https://app.any.run/tasks/b8f18239-2200-4f9d-92fe-92a26ecc02dc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Searching for synchronization primitives
Connecting to a non-recommended domain
Launching a process
Creating a window
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6628577814fabb16f4007429/reports/dacfd3b8-f577-4a19-98f8-9383e9bc917b/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30
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:
RedLine Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/88c01724-2dd2-4b93-b8bd-e2a99bc6564e
Result
Threat name:
RedLine, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1430686
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
Connects to many ports of the same IP (likely port scanning)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
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 domain / URL
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: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Snort IDS alert for network traffic
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
Uses the Telegram API (likely for C&C communication)
Yara detected Generic Downloader
Yara detected RedLine Stealer
Yara detected Telegram RAT
Yara detected Telegram Recon
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1430686 Sample: Output.exe Startdate: 24/04/2024 Architecture: WINDOWS Score: 100 53 api.telegram.org 2->53 55 ip-api.com 2->55 65 Snort IDS alert for network traffic 2->65 67 Multi AV Scanner detection for domain / URL 2->67 69 Found malware configuration 2->69 73 20 other signatures 2->73 9 Output.exe 4 2->9         started        13 mstc.exe 2->13         started        15 mstc.exe 2->15         started        17 mstc.exe 2->17         started        signatures3 71 Uses the Telegram API (likely for C&C communication) 53->71 process4 file5 49 C:\ProgramData\build.exe, PE32 9->49 dropped 51 C:\ProgramData\XClient.exe, PE32 9->51 dropped 85 Found many strings related to Crypto-Wallets (likely being stolen) 9->85 19 XClient.exe 15 6 9->19         started        24 build.exe 15 3 9->24         started        87 Antivirus detection for dropped file 13->87 89 Multi AV Scanner detection for dropped file 13->89 91 Machine Learning detection for dropped file 13->91 signatures6 process7 dnsIp8 57 127.0.0.1 unknown unknown 19->57 59 ip-api.com 208.95.112.1, 49707, 80 TUT-ASUS United States 19->59 61 api.telegram.org 149.154.167.220, 443, 49720 TELEGRAMRU United Kingdom 19->61 47 C:\Users\user\AppData\Local\Temp\mstc.exe, PE32 19->47 dropped 75 Antivirus detection for dropped file 19->75 77 Multi AV Scanner detection for dropped file 19->77 79 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 19->79 83 6 other signatures 19->83 26 powershell.exe 23 19->26         started        29 powershell.exe 21 19->29         started        31 powershell.exe 19->31         started        35 2 other processes 19->35 63 91.92.252.220, 49706, 49708, 49712 THEZONEBG Bulgaria 24->63 81 Machine Learning detection for dropped file 24->81 33 conhost.exe 24->33         started        file9 signatures10 process11 signatures12 93 Found many strings related to Crypto-Wallets (likely being stolen) 26->93 95 Loading BitLocker PowerShell Module 26->95 37 conhost.exe 26->37         started        39 conhost.exe 29->39         started        41 conhost.exe 31->41         started        43 conhost.exe 35->43         started        45 conhost.exe 35->45         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30/
Threat name:
ByteCode-MSIL.Trojan.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-04-23 23:59:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kafvc5y7aptb6hcg7qu4fj4geaobeoxf6a3jxulgjgjl27cdjiya._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:redline family:sectoprat family:xworm botnet:ids infostealer persistence rat trojan
Link:
https://tria.ge/reports/240424-a7hb6adc2t/
Behaviour
Creates scheduled task(s)
Suspicious behavior: AddClipboardFormatListener
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
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Detect Xworm Payload
RedLine
RedLine payload
SectopRAT
SectopRAT payload
Xworm
Malware Config
C2 Extraction:
127.0.0.1:7000
91.92.252.220:7000
91.92.252.220:9078
Unpacked files
SH256 hash:
bc8306a6f60583de0b2a2818f1f9d1df8e80ef29dcf46b9471e4697f219e1251
MD5 hash:
5b7ac9829cdca0b5e82604191dcc1d4e
SHA1 hash:
5e944b6afea5db67b4d272a7b02bdf5501ca213f
Detections:
XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/8a01053e-cd1b-4b36-b60b-34b83eb64489/
SH256 hash:
34dac9b900a3c810e466f9cac9ba5f0a062ff2be7719fc443cb23d0f8ac0390e
MD5 hash:
d32bddd3639f42733a78945885002128
SHA1 hash:
6dcfc09b8c86e79ac70a63132a5162d3616c6479
Detections:
MALWARE_Win_RedLine
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
RedLine_a
Create hunting rule
Link:
https://www.unpac.me/results/8a01053e-cd1b-4b36-b60b-34b83eb64489/
SH256 hash:
500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30
MD5 hash:
edd7441051bbf509ef1052d9f2a02c8f
SHA1 hash:
7338ef9ddb0b59228b31c6b7931fae04ace344e8
Link:
https://www.unpac.me/results/8a01053e-cd1b-4b36-b60b-34b83eb64489/
Malware family:
RedLine.A
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/500b51771f03/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30

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.

Web download

Formbook

Executable exe 500b51771f03e61f1c46fc29c2a786201c123ae5f0369bd1664992bd7c434a30

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2825062/
  
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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