MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e. 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


GoProxy


Vendor detections: 11


Intelligence 11 IOCs 1 YARA 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e
SHA3-384 hash: 7c4be456026aa74d758ecafca7fd518dbb86c1b0c4a9bee1f24098377429c3c32fa4b044818bb7cb6be1409306205f55
SHA1 hash: f4d749ce2b60dd65e88b6db5c7a9136ad792e649
MD5 hash: b9e78b2c7e36f86955f56451e76b685e
humanhash: blue-yankee-gee-venus
File name:file
Download: download sample
Signature GoProxy
Create hunting rule
File size:6'680'824 bytes
First seen:2026-02-20 11:08:40 UTC
Last seen:2026-02-20 11:34:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash d42595b695fc008ef2c56aabd8efd68e (157 x Vidar, 92 x Rhadamanthys, 76 x Stealc)
ssdeep 49152:uJVR+3bJeR79mqplEkFSOEwjSVQCLhVp8h/O+ht6sCRNvn6gjoc198574fKiK9Kp:uXR97kNLJ8h2ACNnayyibEPEKS
TLSH T183664B07EC9145E9C0AAE23486639262BB717C891F3523D32F90F7292F76BD06E79750
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe fbf543 GoProxy


Avatar
Bitsight
url: http://130.12.180.43/files/748049926/Ks5Tudg.exe

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://bobrecurwarmumsworms.com:8080/updater?for=1366407C325E73B05F171B2364A70D1B https://threatfox.abuse.ch/ioc/1751214/

Intelligence

File Origin
# of uploads :
14
# of downloads :
127
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2026-02-20 11:10:36 UTC
Tags:
goproxy golang
Link:
https://app.any.run/tasks/d901ba55-aa56-4a66-8af0-05c0fe75b295

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/53909/
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.38765548.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=699840dec950ab5d9aafb76c
Tags:
injection obfusc crypt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Sending an HTTP GET request to an infection source
Creating a file
Restart of the analyzed sample
Сreating synchronization primitives
Searching for synchronization primitives
Query of malicious DNS domain
Connection attempt to an infection source
Sending a TCP request to an infection source
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 crypto expand go golang invalid-signature lolbin signed
Link:
https://www.filescan.io/uploads/699840dc97feb4afd64e8cb5/reports/22fdba5e-aeab-42f9-a2d5-e17b09e39a24/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan.Agent.HTTP.C&C PDM:Trojan.Win32.Generic HEUR:Trojan.Win64.Agent.gen Trojan.Win64.Agent.sba
Link:
https://opentip.kaspersky.com/f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/e40718e8-0b2a-4156-85c9-47fb7a93f712
Score:
20%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e/
Verdict:
Malicious
Threat:
Family.GOPROXY
Link:
https://tip.neiki.dev/file/f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e
Threat name:
Win64.Trojan.Tedy
Create hunting rule
Status:
Malicious
First seen:
2026-02-20 11:10:14 UTC
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6vlp2kd6ejzebctmcdjdulvyor2sz6adct4coozda3l4ef7obqxa._file
Result
Malware family:
goproxy
Create hunting rule
Score:
  10/10
Tags:
family:goproxy backdoor persistence
Link:
https://tria.ge/reports/260220-m88a7aaz7h/
Behaviour
GoLang User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Detects GoProxy payload
GoProxy
Goproxy family
Unpacked files
SH256 hash:
f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e
MD5 hash:
b9e78b2c7e36f86955f56451e76b685e
SHA1 hash:
f4d749ce2b60dd65e88b6db5c7a9136ad792e649
Link:
https://www.unpac.me/results/f2261377-66f0-49e6-83ab-3c7e71437392/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.16
Link:
https://yomi.yoroi.company/submissions/f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
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:golang_duffcopy_amd64
Create hunting rule
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
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: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: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:Suspicious_Golang_Binary
Create hunting rule
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
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.

Web download

GoProxy

Executable exe f556fd287e2272408a6c10d23a2eb874752cf80314f8273b2306d7c217ee0c2e

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3781725/
Cape
Cape
https://www.capesandbox.com/analysis/53909/

Comments