MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb370beaa28c90ee89738489bc9ae9d9b226fc877a610734364232854f28216e. 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


BlankGrabber


Vendor detections: 16


Intelligence 16 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb370beaa28c90ee89738489bc9ae9d9b226fc877a610734364232854f28216e
SHA3-384 hash: 1b5d7139c1e51003ebbbc1ea6704760b68ff73a29513ea5c02ef693502cfbb2c17e39406fed59c7d3ba34f209fe939a0
SHA1 hash: 1296d5d3a6a7d3476b3b2bf7f272c2b586f3a73f
MD5 hash: 16d300bc0b14d20c79b4e7cef6c0eeb5
humanhash: eleven-triple-sink-venus
File name:Base.exe
Download: download sample
Signature BlankGrabber
Create hunting rule
File size:7'990'272 bytes
First seen:2024-08-02 15:06:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d59a4a699610169663a929d37c90be43 (75 x DCRat, 22 x njrat, 15 x SalatStealer)
ssdeep 98304:+ta/Si8x9XQs3urErvz81LpWjjUa50ZtPvYRt2e4GFNGjfzfbIbApJo4EAKhOC1N:yaKP9V3urErvI9pWjgfPvzm6gsFE14AN
TLSH T1EB86339237A509B4F4BE423C89B69142DBB2B8660760D7DF03E442972F137D4CE3A796
TrID 53.3% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
13.1% (.EXE) Win32 Executable Delphi generic (14182/79/4)
12.1% (.SCR) Windows screen saver (13097/50/3)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 70e8e8f0d89ad878 (1 x XWorm, 1 x BlankGrabber, 1 x AsyncRAT)
Reporter Chainskilabs
Tags:BlankGrabber exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
343
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Base.exe
Verdict:
Malicious activity
Analysis date:
2024-08-02 05:22:52 UTC
Tags:
evasion xworm remote blankgrabber python discord stealer susp-powershell
Link:
https://app.any.run/tasks/b324c115-99be-42f1-a555-91d47e97b016

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66acf61a037b02d0daed240d
Tags:
Discovery Execution Generic Network Static Stealth Trojan Crypt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Searching for the window
Searching for synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Running batch commands
Sending a custom TCP request
Reading critical registry keys
Launching a process
Creating a window
Launching the process to change network settings
Unauthorized injection to a recently created process
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat backdoor blackworm expand fingerprint lolbin njrat packed rat shell32 worm
Link:
https://www.filescan.io/uploads/66acf61f3a481e36d5748791/reports/4aeec81d-8cf7-4767-aebf-d03412e01ff6/overview
Verdict:
Malicious
Labled as:
TrojanDropper.Delf
Link:
https://www.hybrid-analysis.com/sample/bb370beaa28c90ee89738489bc9ae9d9b226fc877a610734364232854f28216e
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/1379f377-d6b4-4b23-b0da-2aa820ae53e4
Result
Threat name:
AsyncRAT, Blank Grabber, XWorm
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1486895
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
Creates files with lurking names (e.g. Crack.exe)
Encrypted powershell cmdline option found
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)
Modifies existing user documents (likely ransomware behavior)
Modifies Windows Defender protection settings
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Removes signatures from Windows Defender
Sample uses string decryption to hide its real strings
Sigma detected: Capture Wi-Fi password
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Sigma detected: Rar Usage with Password and Compression Level
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Suspicious PowerShell Encoded Command Patterns
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Tries to steal Crypto Currency Wallets
Uses netsh to modify the Windows network and firewall settings
Very long command line found
Writes or reads registry keys via WMI
Yara detected AsyncRAT
Yara detected Blank Grabber
Yara detected Generic Downloader
Yara detected Telegram RAT
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1486895 Sample: Base.exe Startdate: 02/08/2024 Architecture: WINDOWS Score: 100 118 ip-api.com 2->118 120 gl.at.ply.gg 2->120 122 discord.com 2->122 140 Found malware configuration 2->140 142 Malicious sample detected (through community Yara rule) 2->142 144 Antivirus detection for dropped file 2->144 146 26 other signatures 2->146 13 Base.exe 3 2->13         started        signatures3 process4 file5 114 C:\Users\user\AppData\...\XClifsaent.exe, PE32 13->114 dropped 116 C:\Users\user\AppData\...116ursultan Alpha.exe, PE32 13->116 dropped 198 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 13->198 17 Nursultan Alpha.exe 4 13->17         started        21 XClifsaent.exe 14 3 13->21         started        signatures6 process7 dnsIp8 94 C:\Users\user\AppData\Local\...\XCli fent.exe, PE32 17->94 dropped 96 C:\Users\user\AppData\...\CrackLauncher.exe, PE32+ 17->96 dropped 98 C:\Users\user\AppData\Local\Temp\Built.exe, PE32+ 17->98 dropped 128 Creates files with lurking names (e.g. Crack.exe) 17->128 130 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 17->130 24 Built.exe 22 17->24         started        28 CrackLauncher.exe 4 2 17->28         started        30 XCli fent.exe 14 3 17->30         started        124 ip-api.com 208.95.112.1, 49704, 49705, 49716 TUT-ASUS United States 21->124 132 Antivirus detection for dropped file 21->132 134 Multi AV Scanner detection for dropped file 21->134 136 Machine Learning detection for dropped file 21->136 138 2 other signatures 21->138 32 powershell.exe 21->32         started        34 powershell.exe 21->34         started        36 powershell.exe 21->36         started        file9 signatures10 process11 file12 104 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 24->104 dropped 106 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32+ 24->106 dropped 108 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 24->108 dropped 110 16 other malicious files 24->110 dropped 180 Multi AV Scanner detection for dropped file 24->180 182 Very long command line found 24->182 184 Modifies Windows Defender protection settings 24->184 190 2 other signatures 24->190 38 Built.exe 1 100 24->38         started        42 cmd.exe 1 28->42         started        44 conhost.exe 28->44         started        186 Adds a directory exclusion to Windows Defender 30->186 46 powershell.exe 30->46         started        48 powershell.exe 30->48         started        188 Loading BitLocker PowerShell Module 32->188 50 conhost.exe 32->50         started        52 conhost.exe 34->52         started        54 conhost.exe 36->54         started        signatures13 process14 dnsIp15 126 discord.com 162.159.135.232, 443, 49717 CLOUDFLARENETUS United States 38->126 148 Very long command line found 38->148 150 Found many strings related to Crypto-Wallets (likely being stolen) 38->150 152 Tries to harvest and steal browser information (history, passwords, etc) 38->152 162 6 other signatures 38->162 56 cmd.exe 38->56         started        59 cmd.exe 38->59         started        61 cmd.exe 38->61         started        67 23 other processes 38->67 154 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 42->154 156 Suspicious powershell command line found 42->156 158 Encrypted powershell cmdline option found 42->158 164 2 other signatures 42->164 160 Loading BitLocker PowerShell Module 46->160 63 conhost.exe 46->63         started        65 conhost.exe 48->65         started        signatures16 process17 signatures18 166 Very long command line found 56->166 168 Encrypted powershell cmdline option found 56->168 69 powershell.exe 56->69         started        72 conhost.exe 56->72         started        170 Modifies Windows Defender protection settings 59->170 172 Removes signatures from Windows Defender 59->172 74 powershell.exe 59->74         started        85 2 other processes 59->85 174 Adds a directory exclusion to Windows Defender 61->174 77 powershell.exe 61->77         started        79 conhost.exe 61->79         started        176 Suspicious powershell command line found 67->176 178 Tries to harvest and steal WLAN passwords 67->178 81 getmac.exe 67->81         started        83 systeminfo.exe 67->83         started        87 44 other processes 67->87 process19 file20 100 C:\Users\user\AppData\...\hg0ieary.cmdline, Unicode 69->100 dropped 89 csc.exe 69->89         started        192 Loading BitLocker PowerShell Module 77->192 194 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 81->194 196 Writes or reads registry keys via WMI 81->196 102 C:\Users\user\AppData\Local\Temp\RJRzX.zip, RAR 87->102 dropped signatures21 process22 file23 112 C:\Users\user\AppData\Local\...\hg0ieary.dll, PE32 89->112 dropped 92 cvtres.exe 89->92         started        process24
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bb370beaa28c90ee89738489bc9ae9d9b226fc877a610734364232854f28216e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bb370beaa28c90ee89738489bc9ae9d9b226fc877a610734364232854f28216e/
Threat name:
Win32.Trojan.Barys
Create hunting rule
Status:
Malicious
First seen:
2024-08-01 08:41:59 UTC
File Type:
PE (Exe)
Extracted files:
566
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xm3qx2vcrsio5cltqse3zgxj3gzcn7ehpjqqonbwiiziktziefxa._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:blankgrabber family:xworm collection credential_access defense_evasion discovery execution persistence privilege_escalation rat spyware stealer trojan upx
Link:
https://tria.ge/reports/240802-sha6nayfll/
Behaviour
Detects videocard installed
Gathers system information
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Wi-Fi Discovery
Enumerates processes with tasklist
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Obfuscated Files or Information: Command Obfuscation
Checks computer location settings
Clipboard Data
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Unsecured Credentials: Credentials In Files
Command and Scripting Interpreter: PowerShell
Credentials from Password Stores: Credentials from Web Browsers
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
127.0.0.1:6985
21.ip.gl.ply.gg:6985
gl.at.ply.gg:6985
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0b7daaef-ab18-4e57-8352-7e87a670ce70
Unpacked files
SH256 hash:
c32e5e2f4bfd567a09146614c362335348a6715491eec0042d77266cdcab7523
MD5 hash:
bb69876a6c63c3c4d47f2a858c276a16
SHA1 hash:
a1d7f6de635a0f295a55407e16236c352239ae3d
Link:
https://www.unpac.me/results/6d01c219-da50-4d13-ac09-0607ad686986/
SH256 hash:
1d685762bd1e0e8961dbc759e18357eb69f91f563464b85ba78a869f6e18d1a5
MD5 hash:
676301ceebb37d07c71bfb2d46abb140
SHA1 hash:
dbb48e155ed6180dd0ecaf5800a6d7342592e178
Link:
https://www.unpac.me/results/6d01c219-da50-4d13-ac09-0607ad686986/
SH256 hash:
d294856177658df0159cfe937e5ea95a8ee8a2ca85754d897aea3bb5d0d962c0
MD5 hash:
c137c5f5287d73a94d55bc18df238303
SHA1 hash:
95b4b01775bea14feaaa462c98d969eb81696d2c
Link:
https://www.unpac.me/results/6d01c219-da50-4d13-ac09-0607ad686986/
SH256 hash:
bb370beaa28c90ee89738489bc9ae9d9b226fc877a610734364232854f28216e
MD5 hash:
16d300bc0b14d20c79b4e7cef6c0eeb5
SHA1 hash:
1296d5d3a6a7d3476b3b2bf7f272c2b586f3a73f
Link:
https://www.unpac.me/results/6d01c219-da50-4d13-ac09-0607ad686986/
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/bb370beaa28c90ee89738489bc9ae9d9b226fc877a610734364232854f28216e

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__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
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:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
Rule name:has_telegram_urls
Create hunting rule
Author:Aaron DeVera<aaron@backchannel.re>
Description:Detects Telegram URLs
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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_detect_tls_callbacks
Create hunting rule

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::GetWindowsDirectoryA
kernel32.dll::GetSystemDirectoryA
kernel32.dll::GetTempPathA

Comments