MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 722128dea3f7a05aaa9f30656ab312fede67f07c8786f79d7ed4bbc894feaf2c. 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: 14


Intelligence 14 IOCs YARA 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 722128dea3f7a05aaa9f30656ab312fede67f07c8786f79d7ed4bbc894feaf2c
SHA3-384 hash: c3e6d9c7c29b384491fce930338844132d5ae1670f62eba0579226bab43b2af20f400ddf03f1866e3a99614062d0ecd7
SHA1 hash: 0357a0db816f6ac0d66e4755e125c49505825bf9
MD5 hash: 72eb7f26eee2736cd502288a3be1446c
humanhash: asparagus-golf-hot-december
File name:888.exe
Download: download sample
Signature GOBackdoor
Create hunting rule
File size:17'739'064 bytes
First seen:2025-03-21 19:26:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e1d5a8e6059ba1c410dff9fd5a7c0c57 (1 x GOBackdoor)
ssdeep 393216:dw9ABEgggkP7qIDiKDXh+yqLMdlSsVc2EeJUO9WLpFK:dPa7qIuKbhQMdcsmFK
TLSH T1DF079E26FB0315F6EF4316B78947E3EFAB3891009222AE66D64D0657EC134D84727B1E
TrID 32.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
20.5% (.EXE) Win64 Executable (generic) (10522/11/4)
12.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
9.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 69c8cccccc9671b2 (1 x GOBackdoor)
Reporter skocherhan
Tags:exe GOBackdoor


Avatar
skocherhan
http://195.82.146.34/888.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
470
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5c0bab9f-5522-488f-b4de-098784e79b28
Verdict:
Malicious activity
Analysis date:
2025-03-19 23:19:00 UTC
Tags:
autoit lumma stealer loader autoit-loader golang
Link:
https://app.any.run/tasks/5c0bab9f-5522-488f-b4de-098784e79b28

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67db6263115e7b48b48ee429
Tags:
dropper virus spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Launching a process
Creating a file
Connection attempt
Sending a custom TCP request
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm crypto invalid-signature lolbin overlay packed packed packer_detected remote signed
Link:
https://www.filescan.io/uploads/67ddbd9dc9c620e61824b316/reports/357b8716-f916-4858-8571-ae9bab300f96/overview
Verdict:
Malicious
Labled as:
Fragtor.Generic
Link:
https://www.hybrid-analysis.com/sample/722128dea3f7a05aaa9f30656ab312fede67f07c8786f79d7ed4bbc894feaf2c
Result
Verdict:
MALICIOUS
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/15a3c114-3d75-4fab-b44e-476d7ac3062e
Result
Threat name:
GO Backdoor
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1645484
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious PE digital signature
Connects to many ports of the same IP (likely port scanning)
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)
Yara detected Costura Assembly Loader
Yara detected GO Backdoor
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1645484 Sample: 888.exe Startdate: 21/03/2025 Architecture: WINDOWS Score: 100 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected GO Backdoor 2->49 51 6 other signatures 2->51 8 888.exe 2 2->8         started        11 888.exe 2 2->11         started        13 888.exe 2 2->13         started        process3 signatures4 53 Suspicious powershell command line found 8->53 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->55 57 Injects a PE file into a foreign processes 8->57 15 888.exe 1 8->15         started        19 888.exe 11->19         started        21 888.exe 13->21         started        process5 dnsIp6 35 77.238.237.190, 15094, 49725 TELERU-ASRU Russian Federation 15->35 37 46.8.232.106, 443, 49723, 49726 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 15->37 43 Suspicious powershell command line found 15->43 23 powershell.exe 1 11 15->23         started        39 193.187.172.163, 443, 49728, 49731 ITOS-ASRU Russian Federation 19->39 41 147.45.196.157, 443, 49727, 49730 FREE-NET-ASFREEnetEU Russian Federation 19->41 25 powershell.exe 11 19->25         started        27 powershell.exe 11 21->27         started        signatures7 process8 process9 29 conhost.exe 23->29         started        31 conhost.exe 25->31         started        33 conhost.exe 27->33         started       
Score:
84%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/722128dea3f7a05aaa9f30656ab312fede67f07c8786f79d7ed4bbc894feaf2c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/722128dea3f7a05aaa9f30656ab312fede67f07c8786f79d7ed4bbc894feaf2c/
Threat name:
Win32.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2025-03-20 00:33:40 UTC
File Type:
PE (Exe)
Extracted files:
15
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oiqsrxvd66qfvku7gbswvmys73pgp4d4q6dpphl62s54rfh6v4wa._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution persistence
Link:
https://tria.ge/reports/250321-x5376s1jz2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
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/45a1752b-6bf1-4ef3-9c92-e0c418e118ce
Unpacked files
SH256 hash:
722128dea3f7a05aaa9f30656ab312fede67f07c8786f79d7ed4bbc894feaf2c
MD5 hash:
72eb7f26eee2736cd502288a3be1446c
SHA1 hash:
0357a0db816f6ac0d66e4755e125c49505825bf9
Link:
https://www.unpac.me/results/0b04affc-109d-4e81-93ef-d60747b716d7/
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/722128dea3f7a05aaa9f30656ab312fede67f07c8786f79d7ed4bbc894feaf2c

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
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__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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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:Rooter
Create hunting rule
Author:Seth Hardy
Description:Rooter
Rule name:RooterStrings
Create hunting rule
Author:Seth Hardy
Description:Rooter Identifying Strings
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: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:WHIRLPOOL_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for WhirlPool constants

File information

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

Web download

GOBackdoor

Executable exe 722128dea3f7a05aaa9f30656ab312fede67f07c8786f79d7ed4bbc894feaf2c

(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
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::CreateFiberEx
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::ReadConsoleA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleMode
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::GetSystemDirectoryA
KERNEL32.dll::FindFirstFileW
WIN_CRYPT_APIUses Windows Crypt APICRYPT32.dll::CertEnumCertificatesInStore
CRYPT32.dll::CertFindCertificateInStore
CRYPT32.dll::CertFreeCertificateContext
CRYPT32.dll::CertOpenStore
CRYPT32.dll::CertOpenSystemStoreW
ADVAPI32.dll::CryptAcquireContextA
ADVAPI32.dll::CryptAcquireContextW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_SOCK_APIUses Network to send and receive dataWS2_32.dll::accept
WS2_32.dll::bind
WS2_32.dll::closesocket
WS2_32.dll::connect
WS2_32.dll::freeaddrinfo
WS2_32.dll::getaddrinfo
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ControlService
ADVAPI32.dll::CreateServiceA
ADVAPI32.dll::OpenSCManagerA
ADVAPI32.dll::OpenServiceA
ADVAPI32.dll::RegisterServiceCtrlHandlerA
ADVAPI32.dll::StartServiceA

Comments