MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 854d5ac4352c653dbb566a39de26f260181a666c01dc8f26347585bcd129a99d. 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: 11


Intelligence 11 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 854d5ac4352c653dbb566a39de26f260181a666c01dc8f26347585bcd129a99d
SHA3-384 hash: 6462cee677553532baa485c58894ca75da776619724db6599ef60d5c25be98a1b86e81cdad35f1b2cd72b93daa165933
SHA1 hash: 9114e810bfa5ea52f77bb19ffba394d4ddeb2ea6
MD5 hash: 8ddc00b505740e2be081fcf120a6523a
humanhash: blossom-steak-london-purple
File name:P2UCP0TI2NAT0D97KZDHJX1YG835.exe
Download: download sample
Signature GOBackdoor
Create hunting rule
File size:9'746'432 bytes
First seen:2025-04-12 07:32:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fd6361ba72b748c3b6b9430ee151fe92 (1 x LummaStealer, 1 x GOBackdoor)
ssdeep 196608:newtZn2m0UVg+vQcHRqtTxOGzQJlqIJptgvtks+q97oPJQ6UVZk8D:eoZhl2mhRqtMqQleKq5QJQ6UVZj
TLSH T1D8A622E16A62276BCDC8ED3D84F345CD33815C3D669268FA1181732A2E759C87CEBE05
TrID 49.9% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win32 Executable (generic) (4504/4/1)
9.6% (.EXE) OS/2 Executable (generic) (2029/13)
9.5% (.EXE) Generic Win/DOS Executable (2002/3)
9.4% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
dhash icon d48ae2e8e8e2aadc (1 x GOBackdoor)
Reporter Rony
Tags:exe GhostSocks GOBackdoor

Intelligence

File Origin
# of uploads :
1
# of downloads :
505
Origin country :
IN IN
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Nepomuk.exe
Verdict:
Malicious activity
Analysis date:
2025-04-12 07:26:50 UTC
Tags:
lumma stealer github golang
Link:
https://app.any.run/tasks/c4f1f0fb-41cf-4faa-b452-3c3638d36375

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/1970/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.20958.6924.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67fa1e501dba888a93d163d4
Tags:
obfuscate dropper xtreme
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
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
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/854d5ac4352c653dbb566a39de26f260181a666c01dc8f26347585bcd129a99d
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/77d58061-4393-4b9a-92bd-d2260c65cbe8
Result
Threat name:
GO Backdoor
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1663720
Signature
Contains functionality to detect sleep reduction / modifications
Detected unpacking (creates a PE file in dynamic memory)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
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 GO Backdoor
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1663720 Sample: P2UCP0TI2NAT0D97KZDHJX1YG835.exe Startdate: 12/04/2025 Architecture: WINDOWS Score: 92 40 Multi AV Scanner detection for dropped file 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 Yara detected GO Backdoor 2->44 46 2 other signatures 2->46 7 P2UCP0TI2NAT0D97KZDHJX1YG835.exe 3 2->7         started        12 P2UCP0TI2NAT0D97KZDHJX1YG835.exe 1 2->12         started        14 P2UCP0TI2NAT0D97KZDHJX1YG835.exe 1 2->14         started        process3 dnsIp4 30 185.157.213.253, 30935, 49717 TVHORADADAES Spain 7->30 32 46.8.232.106, 443, 49715, 49723 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 7->32 28 C:\Users\user\AppData\...28rEXDJiACHo.exe, PE32 7->28 dropped 48 Detected unpacking (creates a PE file in dynamic memory) 7->48 50 Suspicious powershell command line found 7->50 52 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 7->52 54 Contains functionality to detect sleep reduction / modifications 7->54 16 powershell.exe 1 11 7->16         started        34 194.28.226.181, 443, 49728, 49735 SYSTEM-LTD-ASRU Russian Federation 12->34 36 91.212.166.19, 443, 49729, 49736 MOBILY-ASEtihadEtisalatCompanyMobilySA United Kingdom 12->36 38 4 other IPs or domains 12->38 18 powershell.exe 12->18         started        20 powershell.exe 14->20         started        file5 signatures6 process7 process8 22 conhost.exe 16->22         started        24 conhost.exe 18->24         started        26 conhost.exe 20->26         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/854d5ac4352c653dbb566a39de26f260181a666c01dc8f26347585bcd129a99d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/854d5ac4352c653dbb566a39de26f260181a666c01dc8f26347585bcd129a99d/
Threat name:
Win32.Infostealer.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-04-11 05:22:10 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qvgvvrbvfrst3o2wni454jxsmambuztmahoi6jruowc3zujjvgoq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution persistence
Link:
https://tria.ge/reports/250412-jc2lzszns5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Adds Run key to start application
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a4756d81-95d4-481b-9eaa-d7e40c5438fc
Unpacked files
SH256 hash:
854d5ac4352c653dbb566a39de26f260181a666c01dc8f26347585bcd129a99d
MD5 hash:
8ddc00b505740e2be081fcf120a6523a
SHA1 hash:
9114e810bfa5ea52f77bb19ffba394d4ddeb2ea6
Link:
https://www.unpac.me/results/33a7f48f-5de5-4a35-ae32-78c97811456a/
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/854d5ac4352c653dbb566a39de26f260181a666c01dc8f26347585bcd129a99d

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: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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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: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

File information

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

LummaStealer

Executable exe 93c71027c0484c7be95f7285b2fe668b60b3bec52b0f57d0deb01fcdfe111a89

GOBackdoor

Executable exe 854d5ac4352c653dbb566a39de26f260181a666c01dc8f26347585bcd129a99d

(this sample)

  
Link
http://185.156.73.98/service
  
Dropped by
SHA256 93c71027c0484c7be95f7285b2fe668b60b3bec52b0f57d0deb01fcdfe111a89
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/1970/
  
Dropped by
MD5 fac9214c35af0181c30099c68920f445

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
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::AllocateLocallyUniqueId
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AccessCheck
ADVAPI32.dll::AccessCheckByType
ADVAPI32.dll::AccessCheckByTypeResultList
ADVAPI32.dll::AddAccessAllowedAce
ADVAPI32.dll::AddAccessDeniedAce
ADVAPI32.dll::AdjustTokenPrivileges
SS_APIUses SS APIADVAPI32.dll::CryptVerifySignatureW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::GetProcessDEPPolicy
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleMode
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::GetSystemDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupAccountNameW
ADVAPI32.dll::LookupAccountSidW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt FilesADVAPI32.dll::EncryptFileW
ADVAPI32.dll::FileEncryptionStatusW
ADVAPI32.dll::DecryptFileW
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextW
ADVAPI32.dll::CryptCreateHash
ADVAPI32.dll::CryptDecrypt
ADVAPI32.dll::CryptDeriveKey
ADVAPI32.dll::CryptEncrypt
ADVAPI32.dll::CryptExportKey
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegLoadAppKeyW
ADVAPI32.dll::RegLoadKeyW
ADVAPI32.dll::RegNotifyChangeKeyValue
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::ControlService
ADVAPI32.dll::EnumDependentServicesW
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW
USER32.dll::LockWorkStation

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