MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ba61b838a6b159d1d8f6fbbd1c80016fe7277225d1847de9ae50d0d83b29f9f1. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: ba61b838a6b159d1d8f6fbbd1c80016fe7277225d1847de9ae50d0d83b29f9f1
SHA3-384 hash: 69f513e34f8e2b1593515592bf0d15e29f2da5568dedabec9e0517e90521ff4f4074cbdc10884b1c2e34113111d982fd
SHA1 hash: 72ee0bd71ecfbf76103efd8f0bc32d386d91fdaf
MD5 hash: 97feddcf4ed5c42bfaba5761597b8a00
humanhash: shade-nevada-green-vermont
File name:Nursultan Alpha Client.exe
Download: download sample
Signature Formbook
File size:2'990'592 bytes
First seen:2024-07-27 19:33:15 UTC
Last seen:2024-07-27 20:22:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 49152:1xQQovM4NUTzrWlUMtHE772hZD9gtGIOSzAYpk8xKFxNWMjZoMku:1xgM4NOYt0iK8IOScYpP8Wcoa
Threatray 927 similar samples on MalwareBazaar
TLSH T12CD5F10B1D20D638D355B8320792E53859BC57B9FAE3992D8CB6E1D37891D482E3B0E7
TrID 56.5% (.EXE) Win64 Executable (generic) (10523/12/4)
11.0% (.ICL) Windows Icons Library (generic) (2059/9)
10.9% (.EXE) OS/2 Executable (generic) (2029/13)
10.7% (.EXE) Generic Win/DOS Executable (2002/3)
10.7% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon 7824dad874b6dc71 (1 x Formbook)
Reporter nickkuechel
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
385
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Tags:
Discovery Execution Network Other Stealth Trojan Variant
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Searching for the window
Creating a file
Creating a window
Searching for synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Running batch commands
Launching a process
Unauthorized injection to a recently created process
Blocking a possibility to launch for the Windows Task Manager (taskmgr)
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed vbnet
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.
Result
Threat name:
DCRat, XWorm
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
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 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)
Creates an autostart registry key pointing to binary in C:\Windows
Creates an undocumented autostart registry key
Creates files with lurking names (e.g. Crack.exe)
Creates multiple autostart registry keys
Creates processes via WMI
Disable UAC(promptonsecuredesktop)
Disables UAC (registry)
Drops PE files to the user root directory
Drops PE files with benign system names
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: Files With System Process Name In Unsuspected Locations
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
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses the Telegram API (likely for C&C communication)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected DCRat
Yara detected Generic Downloader
Yara detected Telegram RAT
Yara detected Telegram Recon
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1483500 Sample: Nursultan Alpha Client.exe Startdate: 27/07/2024 Architecture: WINDOWS Score: 100 79 api.telegram.org 2->79 81 main-although.gl.at.ply.gg 2->81 83 2 other IPs or domains 2->83 105 Found malware configuration 2->105 107 Malicious sample detected (through community Yara rule) 2->107 109 Antivirus detection for URL or domain 2->109 113 28 other signatures 2->113 10 Nursultan Alpha Client.exe 6 2->10         started        14 conhost.exe 2->14         started        16 gjUgiHhEqYQeTHdiBcQhqNvHvmdU.exe 2->16         started        18 2 other processes 2->18 signatures3 111 Uses the Telegram API (likely for C&C communication) 79->111 process4 dnsIp5 71 C:\Users\user\AppData\Local\...\svchost.exe, PE32 10->71 dropped 73 C:\Users\...\Windows Driver Foundation.exe, PE32 10->73 dropped 75 C:\Users\user\AppData\...\Runtime Broker.exe, PE32 10->75 dropped 77 2 other malicious files 10->77 dropped 127 Creates files with lurking names (e.g. Crack.exe) 10->127 129 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->129 21 Runtime Broker.exe 3 6 10->21         started        24 svchost.exe 1 6 10->24         started        28 Windows Driver Foundation.exe 14 5 10->28         started        30 CrackLauncher.exe 4 2 10->30         started        131 Antivirus detection for dropped file 14->131 133 Multi AV Scanner detection for dropped file 14->133 135 Machine Learning detection for dropped file 14->135 85 127.0.0.1 unknown unknown 18->85 file6 signatures7 process8 dnsIp9 63 C:\...\portproviderperf.exe, PE32 21->63 dropped 65 C:\...\FI5uMh3ETeLxf7f5t3w.vbe, data 21->65 dropped 32 wscript.exe 21->32         started        87 main-although.gl.at.ply.gg 147.185.221.21, 27263, 30970, 49751 SALSGIVERUS United States 24->87 67 C:\Users\Public\svchost.exe, PE32 24->67 dropped 115 System process connects to network (likely due to code injection or exploit) 24->115 117 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 24->117 119 Protects its processes via BreakOnTermination flag 24->119 125 3 other signatures 24->125 35 powershell.exe 24->35         started        89 ip-api.com 208.95.112.1, 49730, 49731, 49732 TUT-ASUS United States 28->89 91 api.telegram.org 149.154.167.220, 443, 49752 TELEGRAMRU United Kingdom 28->91 69 C:\Users\user\AppData\Roaming\XClient.exe, PE32 28->69 dropped 121 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 28->121 123 Adds a directory exclusion to Windows Defender 28->123 37 powershell.exe 28->37         started        39 conhost.exe 30->39         started        41 cmd.exe 1 30->41         started        file10 signatures11 process12 signatures13 93 Windows Scripting host queries suspicious COM object (likely to drop second stage) 32->93 43 cmd.exe 32->43         started        45 conhost.exe 35->45         started        95 Loading BitLocker PowerShell Module 37->95 47 conhost.exe 37->47         started        process14 process15 49 portproviderperf.exe 43->49         started        53 conhost.exe 43->53         started        file16 55 C:\...\gjUgiHhEqYQeTHdiBcQhqNvHvmdU.exe, PE32 49->55 dropped 57 C:\...\gjUgiHhEqYQeTHdiBcQhqNvHvmdU.exe, PE32 49->57 dropped 59 C:\Windows\Offline Web Pages\dllhost.exe, PE32 49->59 dropped 61 17 other malicious files 49->61 dropped 97 Antivirus detection for dropped file 49->97 99 Multi AV Scanner detection for dropped file 49->99 101 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 49->101 103 9 other signatures 49->103 signatures17
Threat name:
ByteCode-MSIL.Trojan.XWormRAT
Status:
Malicious
First seen:
2024-07-27 19:34:14 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
8
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:dcrat family:xworm discovery evasion execution infostealer persistence rat trojan
Behaviour
Modifies registry class
Modifies registry key
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
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Disables Task Manager via registry modification
DCRat payload
DcRat
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
main-although.gl.at.ply.gg:30970
article-coal.gl.at.ply.gg:27263
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
d294856177658df0159cfe937e5ea95a8ee8a2ca85754d897aea3bb5d0d962c0
MD5 hash:
c137c5f5287d73a94d55bc18df238303
SHA1 hash:
95b4b01775bea14feaaa462c98d969eb81696d2c
SH256 hash:
6e3c920e6115f3b386883ef1d439eec2691923504b42d863bc43de929435f627
MD5 hash:
84f35bb606e5d8049b4c7d57d4a9148a
SHA1 hash:
385862c81fb695799b7cdd5199a212f8de2e1cb7
SH256 hash:
a9f1d82a7954d86d746086969c0d7b7b5ca65ccfd0d6a375931a6826eca1a8c7
MD5 hash:
99088d7d8b409b4039b02295e64a686f
SHA1 hash:
f58dad3090854f8ab5cc3de89d6cdaeb151883d4
Detections:
SH256 hash:
ba61b838a6b159d1d8f6fbbd1c80016fe7277225d1847de9ae50d0d83b29f9f1
MD5 hash:
97feddcf4ed5c42bfaba5761597b8a00
SHA1 hash:
72ee0bd71ecfbf76103efd8f0bc32d386d91fdaf
Please note that we are no longer able to provide a coverage score for Virus Total.

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:pe_no_import_table
Description:Detect pe file that no import table

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

Comments