MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 675904e6ddfe4d5801da49bb4935fc71859e4edf5879a8c173f1f7df35c3970a. 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: 18


Intelligence 18 IOCs YARA 15 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 675904e6ddfe4d5801da49bb4935fc71859e4edf5879a8c173f1f7df35c3970a
SHA3-384 hash: 60bde3f2f6c718f6696b9ef08f72fd3a5b3a09e960cec3d7aaa321352603124fb99765af69a752175a07732b840cc59a
SHA1 hash: 2e0e4ddd78ff20ec2de8fb8993a0649cabfeedd2
MD5 hash: bb1529af37bcc44a4d65ee8da4ab05be
humanhash: vegan-table-seven-september
File name:bb1529af37bcc44a4d65ee8da4ab05be
Download: download sample
Signature Formbook
Create hunting rule
File size:81'920 bytes
First seen:2024-05-28 22:37:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:Gmc2zu/kU4Nl5jZnttCahWtrbazbwq6Kciw6VaZwYVg/VOZO6Kmi80:GmcT8UEntH4trbaYhKc8OZxK+0
TLSH T1CE837D2C37E54516F0FF6FB018F17652CB79B6639903EA5F24C9028B1623A85CD81AF6
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)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
418
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Virus.zip
Verdict:
Malicious activity
Analysis date:
2024-05-28 22:20:02 UTC
Tags:
xworm evasion telegram remote
Link:
https://app.any.run/tasks/c3a74b6e-f23f-4294-a453-95b29e0d64fb

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

Win.Malware.Deepscan-10028866-0
Create hunting rule

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

ditekSHen.MALWARE.Win.XWorm.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66565cd85721c8e527178621win7simulatehigh_evasion
Tags:
Banker Encryption Execution Network Stealth Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Searching for the window
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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
andromeda anti-vm asyncrat backdoor fingerprint hook keylogger lolbin rat schtasks
Link:
https://www.filescan.io/uploads/66565cd132eca5b280008b84/reports/250a2a20-2f5f-466c-8caa-99e33f839899/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/675904e6ddfe4d5801da49bb4935fc71859e4edf5879a8c173f1f7df35c3970a
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/ee742630-5b19-45ae-862a-c9312f13d026
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1448683
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
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
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
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
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 Telegram RAT
Yara detected Telegram Recon
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1448683 Sample: tJN7nzQ8Q1.exe Startdate: 29/05/2024 Architecture: WINDOWS Score: 100 40 api.telegram.org 2->40 42 ip-api.com 2->42 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 58 16 other signatures 2->58 8 tJN7nzQ8Q1.exe 15 6 2->8         started        13 svhost.exe 2->13         started        15 svhost.exe 2->15         started        17 2 other processes 2->17 signatures3 56 Uses the Telegram API (likely for C&C communication) 40->56 process4 dnsIp5 44 ip-api.com 208.95.112.1, 49705, 80 TUT-ASUS United States 8->44 46 api.telegram.org 149.154.167.220, 443, 49714 TELEGRAMRU United Kingdom 8->46 48 82.147.85.135, 49715, 7000 SIBTEL-ASRU Russian Federation 8->48 38 C:\Users\user\AppData\Roaming\svhost.exe, PE32 8->38 dropped 62 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->62 64 Protects its processes via BreakOnTermination flag 8->64 66 Bypasses PowerShell execution policy 8->66 74 4 other signatures 8->74 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 68 Antivirus detection for dropped file 13->68 70 Multi AV Scanner detection for dropped file 13->70 72 Machine Learning detection for dropped file 13->72 file6 signatures7 process8 signatures9 60 Loading BitLocker PowerShell Module 19->60 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/675904e6ddfe4d5801da49bb4935fc71859e4edf5879a8c173f1f7df35c3970a
Detection:
xworm
Create hunting rule
Link:
https://mwdb.cert.pl/sample/675904e6ddfe4d5801da49bb4935fc71859e4edf5879a8c173f1f7df35c3970a/
Threat name:
ByteCode-MSIL.Backdoor.XWorm
Create hunting rule
Status:
Malicious
First seen:
2024-05-28 22:38:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m5mqjzw57zgvqao2jg5usnp4ogcz4tw7lb42rqlt6h356nods4fa._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution persistence rat trojan
Link:
https://tria.ge/reports/240528-2kcxpsge35/
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
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
82.147.85.135:7000
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9e3bf1df-fcb8-43ea-bb82-ab1ed519a2bc
Unpacked files
SH256 hash:
675904e6ddfe4d5801da49bb4935fc71859e4edf5879a8c173f1f7df35c3970a
MD5 hash:
bb1529af37bcc44a4d65ee8da4ab05be
SHA1 hash:
2e0e4ddd78ff20ec2de8fb8993a0649cabfeedd2
Detections:
XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
Andromeda_MalBot_Jun_1A
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/3d1c2606-1a68-4a1a-ab6a-f6dbb9b45511/
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/675904e6ddfe4d5801da49bb4935fc71859e4edf5879a8c173f1f7df35c3970a

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:Andromeda_MalBot_Jun_1A
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a malicious Worm Andromeda / RETADUP
Reference:http://blog.trendmicro.com/trendlabs-security-intelligence/information-stealer-found-hitting-israeli-hospitals/
Rule name:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
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: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:win_xworm_bytestring
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm
Rule name:win_xworm_simple_strings
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects simple strings present in unobfuscated xworm

File information

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

Web download

Formbook

Executable exe 675904e6ddfe4d5801da49bb4935fc71859e4edf5879a8c173f1f7df35c3970a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2867410/

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

Comments


Avatar
zbet commented on 2024-05-28 22:37:56 UTC

url : hxxps://tumanovalekcey.github.io/mot/svhost.exe