MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2665e0ec2ca6060852364ea63a3c0f84683ea787e0f9138910197561e41347e. 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


GOBackdoor


Vendor detections: 13


Intelligence 13 IOCs YARA 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b2665e0ec2ca6060852364ea63a3c0f84683ea787e0f9138910197561e41347e
SHA3-384 hash: 6bf1876f7a03b8fef974b751873630e3c766c9b93bcdf86f39017f23aca35aa4595ba7a1fd4ac2c12f8cfc2a135a3c54
SHA1 hash: b675c04d9fec58941902de0b89e67c543651642b
MD5 hash: 61c7267917673846ee7341faf1bfb333
humanhash: mirror-spaghetti-mobile-fillet
File name:61c7267917673846ee7341faf1bfb333.exe
Download: download sample
Signature GOBackdoor
Create hunting rule
File size:9'900'894 bytes
First seen:2025-03-26 15:11:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 403f4816cd701d581877ef764e9dbf2a (1 x GOBackdoor)
ssdeep 196608:1CC8rY4NmSKQ0a17vnz8YH2kBt/YICF5l7:Nm17/zXH3FYR5R
TLSH T101A67C35AB0003F5CF4356BA4E07E7E5EE6DD9106221145D628F2A4BEA538EC4337E6E
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon d8cc96929692b0cc (1 x GOBackdoor)
Reporter abuse_ch
Tags:exe GOBackdoor

Intelligence

File Origin
# of uploads :
1
# of downloads :
467
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
61c7267917673846ee7341faf1bfb333.exe
Verdict:
Malicious activity
Analysis date:
2025-03-26 15:30:34 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/92cc7411-b810-4910-b92f-837186abc328

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e4194ecb6d38a89f3e65cf
Tags:
smartassembly dropper packed
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Connection attempt
Sending a custom TCP request
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context explorer fingerprint iceid invalid-signature keylogger lolbin microsoft_visual_cc overlay packed packed packer_detected signed update
Link:
https://www.filescan.io/uploads/67e4194e6a150b67eec6f2ed/reports/eb81a41a-5997-4909-ab1e-df998dc68468/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/b2665e0ec2ca6060852364ea63a3c0f84683ea787e0f9138910197561e41347e
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/5ea333bf-92b3-419c-a5f3-70e3c38bd80f
Result
Threat name:
GO Backdoor
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1649275
Signature
.NET source code contains potential unpacker
Connects to many ports of the same IP (likely port scanning)
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected GO Backdoor
Behaviour
Behavior Graph:
Download SVG
Score:
76%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b2665e0ec2ca6060852364ea63a3c0f84683ea787e0f9138910197561e41347e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b2665e0ec2ca6060852364ea63a3c0f84683ea787e0f9138910197561e41347e/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-03-26 01:27:23 UTC
File Type:
PE (Exe)
Extracted files:
45
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wjtf4dwczjqgbbjdmtvghi6a7bdih2typyhzcoeraglvmhsbgr7a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution persistence
Link:
https://tria.ge/reports/250326-sk86gaxtd1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Command and Scripting Interpreter: PowerShell
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5d9ddd1a-67ea-4ce6-af27-bcf3c7076adc
Unpacked files
SH256 hash:
b2665e0ec2ca6060852364ea63a3c0f84683ea787e0f9138910197561e41347e
MD5 hash:
61c7267917673846ee7341faf1bfb333
SHA1 hash:
b675c04d9fec58941902de0b89e67c543651642b
Link:
https://www.unpac.me/results/7114480e-08aa-4ee8-aaec-14af47aaeabb/
SH256 hash:
8c82b8f3be6520d650547dad1ae07294f8d8591fcba262af0c6d0e474881e9a5
MD5 hash:
191eece0490532887e935830a4a4a66a
SHA1 hash:
606549ad61ceec89a5445a728fa7596f7714a2ee
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/7114480e-08aa-4ee8-aaec-14af47aaeabb/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b2665e0ec2ca/report/overview.html
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/b2665e0ec2ca6060852364ea63a3c0f84683ea787e0f9138910197561e41347e

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
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:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Donutloader_f40e3759
Create hunting rule
Author:Elastic Security

File information

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

Web download

GOBackdoor

Executable exe b2665e0ec2ca6060852364ea63a3c0f84683ea787e0f9138910197561e41347e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3481114/
  
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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoFreeUnusedLibraries
ole32.dll::CreateStreamOnHGlobal
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipDeleteGraphics
gdiplus.dll::GdipAlloc
gdiplus.dll::GdipCreateFromHDC
MULTIMEDIA_APICan Play MultimediaWINMM.dll::PlaySoundA
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileA
SHLWAPI.dll::PathRemoveFileSpecW
KERNEL32.dll::GetWindowsDirectoryA
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegCreateKeyA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::CreateMenu
ole32.dll::OleCreateMenuDescriptor
USER32.dll::EmptyClipboard
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA

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