MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 30886b41903e414dc4fe410d9a85bfdc7bbaf96e1ae7130564160a97af8f75fd. 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



AsyncRAT


Vendor detections: 15


Intelligence 15 IOCs YARA 4 File information Comments

SHA256 hash: 30886b41903e414dc4fe410d9a85bfdc7bbaf96e1ae7130564160a97af8f75fd
SHA3-384 hash: 6c86fc6ad67c2c5ed8d03d0962717337e160ed1708ca993f64b54fc0f4597e7fe3cfc900f489c0366231ff824c08265e
SHA1 hash: 29ba2b099a60f88399f7ef3d97e86df79657adf8
MD5 hash: 4dedc0046b064f38c9787d264321b41d
humanhash: december-artist-rugby-five
File name:ubgj.exe
Download: download sample
Signature AsyncRAT
File size:129'536 bytes
First seen:2025-04-25 22:32:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ea98ed386bf0ae14f8c2637a49d11098 (3 x AsyncRAT)
ssdeep 3072:kdqjhEk0Im4XYyiryYBTMVGutdnKWe1eUm/VH9kJS:kg1ELI1XYyirycWhtdKWY2/G
Threatray 48 similar samples on MalwareBazaar
TLSH T1CCC36D5773A530F8E2778239C8915A05E7B2B8350760AFEF07A4465A2F236D0DD3EB61
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter nadimea
Tags:AsyncRAT exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
490
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
ubgj.exe
Verdict:
Malicious activity
Analysis date:
2025-04-25 22:33:17 UTC
Tags:
loader rat asyncrat remote auto-reg

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Connection attempt
Sending an HTTP GET request
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a window
Creating a file in the %temp% subdirectories
Creating a file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm entropy fingerprint microsoft_visual_cc packed
Result
Threat name:
AsyncRAT, DcRat
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Compiles code for process injection (via .Net compiler)
Creates an autostart registry key pointing to binary in C:\Windows
Injects a PE file into a foreign processes
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
Powershell drops PE file
Sample uses string decryption to hide its real strings
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Invoke-WebRequest Execution
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected DcRat
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1674537 Sample: ubgj.exe Startdate: 26/04/2025 Architecture: WINDOWS Score: 100 66 Suricata IDS alerts for network traffic 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 13 other signatures 2->72 10 ubgj.exe 1 2->10         started        13 svchost.exe 1 1 2->13         started        16 explorer.exe 2->16         started        18 3 other processes 2->18 process3 dnsIp4 78 Suspicious powershell command line found 10->78 80 Adds a directory exclusion to Windows Defender 10->80 20 powershell.exe 14 17 10->20         started        24 powershell.exe 22 10->24         started        64 127.0.0.1 unknown unknown 13->64 signatures5 process6 dnsIp7 62 193.176.22.172, 1414, 49713, 49719 M247GB Russian Federation 20->62 52 C:\Windows\Temp\kb0.exe, PE32+ 20->52 dropped 27 kb0.exe 1 12 20->27         started        31 conhost.exe 20->31         started        74 Loading BitLocker PowerShell Module 24->74 76 Powershell drops PE file 24->76 33 WmiPrvSE.exe 24->33         started        35 conhost.exe 24->35         started        file8 signatures9 process10 file11 56 C:\Windows\Temp\xPiglS2\exp.exe, PE32+ 27->56 dropped 58 C:\Users\user\AppData\...\4rp3vnq0.cmdline, Unicode 27->58 dropped 60 C:\Users\user\AppData\Local\...\4rp3vnq0.0.cs, C++ 27->60 dropped 82 Multi AV Scanner detection for dropped file 27->82 84 Creates an autostart registry key pointing to binary in C:\Windows 27->84 86 Writes to foreign memory regions 27->86 88 3 other signatures 27->88 37 csc.exe 3 27->37         started        40 MSBuild.exe 2 27->40         started        42 MSBuild.exe 27->42         started        signatures12 process13 file14 54 C:\Users\user\AppData\Local\...\4rp3vnq0.dll, PE32 37->54 dropped 44 conhost.exe 37->44         started        46 cvtres.exe 1 37->46         started        48 WMIC.exe 40->48         started        process15 process16 50 conhost.exe 48->50         started       
Threat name:
Win64.Trojan.Nekark
Status:
Malicious
First seen:
2025-04-25 22:32:08 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:default discovery execution persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
193.176.22.172:1414
Unpacked files
SH256 hash:
30886b41903e414dc4fe410d9a85bfdc7bbaf96e1ae7130564160a97af8f75fd
MD5 hash:
4dedc0046b064f38c9787d264321b41d
SHA1 hash:
29ba2b099a60f88399f7ef3d97e86df79657adf8
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW

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