MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef7afaf9efa5ce059b94764ee77a4ba3f83900b9b714edc04a13d7ce63fd2a48. 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


Threat unknown


Vendor detections: 12


Intelligence 12 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef7afaf9efa5ce059b94764ee77a4ba3f83900b9b714edc04a13d7ce63fd2a48
SHA3-384 hash: 52e053f7a0e843fd15e09c518adb100e96c177df7dc7f689a6093232f123bd5d9f37cff76539b58a825be69dfdd4006f
SHA1 hash: de2e10ba79428b35b99e102b7d033cfa869058fb
MD5 hash: 2c80b3eb5740ecb30df11f1bca1d2cea
humanhash: blossom-fanta-winner-romeo
File name:bot.exe
Download: download sample
File size:7'931'904 bytes
First seen:2025-03-29 13:49:35 UTC
Last seen:2025-04-06 07:30:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash d42595b695fc008ef2c56aabd8efd68e (475 x Vidar, 96 x Stealc, 92 x Rhadamanthys)
ssdeep 98304:3NFazCM6aEsEByVLc1BTkA1keIWbgu+MdvB2rwNeH6:34n6a4VPTkA1CWJ9Bw6
TLSH T1EB868C03FCA549E9C1ADD234C9A28253BA71BC494B3523D72B50F7382F76BD4AA79740
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon 9288ce8c2a868f92 (89 x Tinba, 7 x AsyncRAT, 6 x Dridex)
Reporter aachum
Tags:exe


Avatar
iamaachum
https://github.com/legendary99999/skdnfgkvdnskgfdf/releases/download/dfgvsdfbsdfbsfb/bot.exe

C2: gogo.fechrise.fun

Intelligence

File Origin
# of uploads :
3
# of downloads :
344
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bot.exe
Verdict:
Suspicious activity
Analysis date:
2025-03-29 13:52:46 UTC
Tags:
golang
Link:
https://app.any.run/tasks/87616ba1-6f12-4f5c-90d8-e52e0b3b4007

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e7fb6a855e5ec524099c40
Tags:
dropper spawn virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Moving a file to the %AppData% subdirectory
Replacing files
Launching a process
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypto expand golang lolbin packed packed packer_detected redcap
Link:
https://www.filescan.io/uploads/67e7fa97631830704a8af2c9/reports/4266dfbd-45cf-4395-a8c1-f1f502399db9/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/ef7afaf9efa5ce059b94764ee77a4ba3f83900b9b714edc04a13d7ce63fd2a48
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/8b2ddd5c-1f60-4e78-a94d-922fba0b6219
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1651745
Signature
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1651745 Sample: bot.exe Startdate: 29/03/2025 Architecture: WINDOWS Score: 64 82 gogo.fechrise.fun 2->82 84 Multi AV Scanner detection for dropped file 2->84 86 Multi AV Scanner detection for submitted file 2->86 88 Joe Sandbox ML detected suspicious sample 2->88 15 bot.exe 4 2->15         started        18 javaservice.exe 2->18         started        signatures3 process4 file5 78 C:\Users\user\AppData\...\javaruntime.exe, PE32+ 15->78 dropped 20 javaruntime.exe 1 15->20         started        24 javaplugin_service.exe 18->24         started        process6 file7 62 C:\Users\...\javaplatform_update.exe (copy), PE32+ 20->62 dropped 90 Multi AV Scanner detection for dropped file 20->90 26 javaplatform_update.exe 20->26         started        29 javaupdater.exe 24->29         started        signatures8 process9 file10 72 C:\Users\user\...\javaplatform.exe (copy), PE32+ 26->72 dropped 31 javaplatform.exe 26->31         started        34 javaservice_service.exe 29->34         started        process11 file12 80 C:\Users\user\...\javaplugin.exe (copy), PE32+ 31->80 dropped 36 javaplugin.exe 31->36         started        39 javaplugin_platform.exe 34->39         started        process13 file14 64 C:\Users\...\javaservice_service.exe (copy), PE32+ 36->64 dropped 41 javaservice_service.exe 36->41         started        44 javaplatform.exe 39->44         started        process15 file16 70 C:\Users\user\...\javasupport.exe (copy), PE32+ 41->70 dropped 46 javasupport.exe 41->46         started        49 javaservice.exe 44->49         started        process17 file18 74 C:\Users\user\...\javaruntimew.exe (copy), PE32+ 46->74 dropped 51 javaruntimew.exe 46->51         started        76 C:\Users\...\javaservice_update.exe (copy), PE32+ 49->76 dropped 53 javaservice_update.exe 49->53         started        process19 process20 55 javaplugin.exe 51->55         started        58 javaupdater.exe 53->58         started        file21 66 C:\Users\user\...\javaupdater.exe (copy), PE32+ 55->66 dropped 60 javaupdater.exe 55->60         started        68 C:\Users\...\javaruntime_service.exe (copy), PE32+ 58->68 dropped process22
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ef7afaf9efa5ce059b94764ee77a4ba3f83900b9b714edc04a13d7ce63fd2a48
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef7afaf9efa5ce059b94764ee77a4ba3f83900b9b714edc04a13d7ce63fd2a48/
Threat name:
Win64.Trojan.Amadey
Create hunting rule
Status:
Malicious
First seen:
2025-03-28 16:56:24 UTC
File Type:
PE+ (Exe)
Extracted files:
25
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=555pv6ppuxhalg4uozhoo6slup4dsafzw4ko3qckcpl44y75fjea._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery execution
Link:
https://tria.ge/reports/250329-q5bdtswmx2/
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Creates a large amount of network flows
Executes dropped EXE
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9cb0181f-05d4-4b16-a631-e911b7fccdf4
Unpacked files
SH256 hash:
ef7afaf9efa5ce059b94764ee77a4ba3f83900b9b714edc04a13d7ce63fd2a48
MD5 hash:
2c80b3eb5740ecb30df11f1bca1d2cea
SHA1 hash:
de2e10ba79428b35b99e102b7d033cfa869058fb
Link:
https://www.unpac.me/results/02836989-eeb1-45a0-8562-18b869747a49/
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/ef7afaf9efa5ce059b94764ee77a4ba3f83900b9b714edc04a13d7ce63fd2a48

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: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: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: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: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.

Web download

Executable exe ef7afaf9efa5ce059b94764ee77a4ba3f83900b9b714edc04a13d7ce63fd2a48

(this sample)

  
Link
https://tria.ge/250329-q1c2vsvsav/behavioral1
  
Dropped by
Amadey
  
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
Reviews
IDCapabilitiesEvidence
DNS_METHODSPerforms DNS callsvendor/golang.org/x/net/dns/dnsmessage.(*nestedError).Error
vendor/golang.org/x/net/dns/dnsmessage.(*header).pack
vendor/golang.org/x/net/dns/dnsmessage.(*header).unpack
vendor/golang.org/x/net/dns/dnsmessage.(*Parser).Start
vendor/golang.org/x/net/dns/dnsmessage.(*Parser).resourceHeader
vendor/golang.org/x/net/dns/dnsmessage.(*Parser).skipResource
vendor/golang.org/x/net/dns/dnsmessage.(*Parser).Question
vendor/golang.org/x/net/dns/dnsmessage.(*Parser).SkipQuestion
vendor/golang.org/x/net/dns/dnsmessage.(*Parser).CNAMEResource
vendor/golang.org/x/net/dns/dnsmessage.(*Parser).AResource
vendor/golang.org/x/net/dns/dnsmessage.(*Parser).AAAAResource
vendor/golang.org/x/net/dns/dnsmessage.NewBuilder
vendor/golang.org/x/net/dns/dnsmessage.(*Builder).Question
vendor/golang.org/x/net/dns/dnsmessage.(*Builder).OPTResource
vendor/golang.org/x/net/dns/dnsmessage.(*Builder).Finish
vendor/golang.org/x/net/dns/dnsmessage.(*ResourceHeader).pack
vendor/golang.org/x/net/dns/dnsmessage.(*ResourceHeader).unpack
vendor/golang.org/x/net/dns/dnsmessage.skipResource
vendor/golang.org/x/net/dns/dnsmessage.(*Name).pack
vendor/golang.org/x/net/dns/dnsmessage.(*Name).unpack
vendor/golang.org/x/net/dns/dnsmessage.(*Question).pack
vendor/golang.org/x/net/dns/dnsmessage.unpackCNAMEResource
vendor/golang.org/x/net/dns/dnsmessage.init
type:.eq.vendor/golang.org/x/net/dns/dnsmessage.nestedError
vendor/golang.org/x/net/dns/dnsmessage::inittask
vendor/golang.org/x/net/dns/dnsmessage.classNames
vendor/golang.org/x/net/dns/dnsmessage.rCodeNames
vendor/golang.org/x/net/dns/dnsmessage.ErrNotStarted
vendor/golang.org/x/net/dns/dnsmessage.ErrSectionDone
vendor/golang.org/x/net/dns/dnsmessage.errBaseLen
vendor/golang.org/x/net/dns/dnsmessage.errCalcLen
vendor/golang.org/x/net/dns/dnsmessage.errReserved
vendor/golang.org/x/net/dns/dnsmessage.errTooManyPtr
vendor/golang.org/x/net/dns/dnsmessage.errInvalidPtr
vendor/golang.org/x/net/dns/dnsmessage.errInvalidName
vendor/golang.org/x/net/dns/dnsmessage.errResourceLen
vendor/golang.org/x/net/dns/dnsmessage.errSegTooLong
vendor/golang.org/x/net/dns/dnsmessage.errNameTooLong
vendor/golang.org/x/net/dns/dnsmessage.errZeroSegLen
vendor/golang.org/x/net/dns/dnsmessage.errResTooLong
vendor/golang.org/x/net/dns/dnsmessage.errTooManyQuestions
vendor/golang.org/x/net/dns/dnsmessage.errTooManyAnswers
vendor/golang.org/x/net/dns/dnsmessage.errTooManyAuthorities
vendor/golang.org/x/net/dns/dnsmessage.errTooManyAdditionals
vendor/golang.org/x/net/dns/dnsmessage.errNonCanonicalName
vendor/golang.org/x/net/dns/dnsmessage.sectionNames
go:itab.*vendor/golang.org/x/net/dns/dnsmessage.nestedError
error
EXEC_METHODSCan Execute Commandsos.StartProcess
os/exec.Command
os/exec.Command.func1
syscall.StartProcess
syscall.StartProcess.deferwrap3
syscall.StartProcess.deferwrap2
syscall.StartProcess.deferwrap1
FILE_IO_READCan Read Filesio.ReadAll
os.ReadFile
os.ReadFile.deferwrap1
os.OpenFile
os.openFileNolog
os.UserHomeDir
FILE_IO_WRITECan Create and Remove Filesos.Mkdir
os.Mkdir.func1
os.MkdirAll
os.Remove
os.rename
os.WriteFile
HTTP_CLIENT_METHODSInvokes HTTP servicenet/http.doubleCRLF
net/http.Header.sortedKeyValues
net/http.Header.writeSubset
net/http.Header.sortedKeyValues.func1
net/http.headerNewlineToSpace
net/http.headerSorterPool
HTTP_METHODSCan run an HTTP servervendor/golang.org/x/net/http2/hpack.init
vendor/golang.org/x/net/http2/hpack.init.func1
vendor/golang.org/x/net/http2/hpack.NewEncoder
vendor/golang.org/x/net/http2/hpack.(*Encoder).WriteField
vendor/golang.org/x/net/http2/hpack.(*Encoder).searchTable
vendor/golang.org/x/net/http2/hpack.(*Encoder).SetMaxDynamicTableSize
vendor/golang.org/x/net/http2/hpack.appendNewName
vendor/golang.org/x/net/http2/hpack.appendIndexedName
vendor/golang.org/x/net/http2/hpack.appendHpackString
vendor/golang.org/x/net/http2/hpack.DecodingError.Error
vendor/golang.org/x/net/http2/hpack.InvalidIndexError.Error
vendor/golang.org/x/net/http2/hpack.HeaderField.String
vendor/golang.org/x/net/http2/hpack.NewDecoder
vendor/golang.org/x/net/http2/hpack.(*Decoder).SetEmitFunc
vendor/golang.org/x/net/http2/hpack.(*dynamicTable).add
vendor/golang.org/x/net/http2/hpack.(*dynamicTable).evict
vendor/golang.org/x/net/http2/hpack.(*Decoder).Close
vendor/golang.org/x/net/http2/hpack.(*Decoder).Write
vendor/golang.org/x/net/http2/hpack.(*Decoder).parseHeaderFieldRepr
vendor/golang.org/x/net/http2/hpack.(*Decoder).parseFieldIndexed
vendor/golang.org/x/net/http2/hpack.(*Decoder).parseFieldLiteral
vendor/golang.org/x/net/http2/hpack.(*Decoder).callEmit
vendor/golang.org/x/net/http2/hpack.(*Decoder).parseDynamicTableSizeUpdate
vendor/golang.org/x/net/http2/hpack.readVarInt
vendor/golang.org/x/net/http2/hpack.(*Decoder).readString
vendor/golang.org/x/net/http2/hpack.(*Decoder).decodeString
vendor/golang.org/x/net/http2/hpack.huffmanDecode
vendor/golang.org/x/net/http2/hpack.buildRootHuffmanNode
vendor/golang.org/x/net/http2/hpack.AppendHuffmanString
vendor/golang.org/x/net/http2/hpack.(*headerFieldTable).evictOldest
vendor/golang.org/x/net/http2/hpack.(*headerFieldTable).search
vendor/golang.org/x/net/http2/hpack.(*headerFieldTable).idToIndex
vendor/golang.org/x/net/http2/hpack.(*DecodingError).Error
vendor/golang.org/x/net/http2/hpack.(*HeaderField).String
vendor/golang.org/x/net/http2/hpack.(*InvalidIndexError).Error
type:.eq.vendor/golang.org/x/net/http2/hpack.HeaderField
type:.eq.vendor/golang.org/x/net/http2/hpack.pairNameValue
type:.hash.vendor/golang.org/x/net/http2/hpack.pairNameValue
vendor/golang.org/x/net/http2/hpack::inittask
vendor/golang.org/x/net/http2/hpack.ErrStringLength
vendor/golang.org/x/net/http2/hpack.errNeedMore
vendor/golang.org/x/net/http2/hpack.errVarintOverflow
vendor/golang.org/x/net/http2/hpack.bufPool
vendor/golang.org/x/net/http2/hpack.ErrInvalidHuffman
vendor/golang.org/x/net/http2/hpack.buildRootOnce
vendor/golang.org/x/net/http2/hpack.lazyRootHuffmanNode
vendor/golang.org/x/net/http2/hpack.staticTable
vendor/golang.org/x/net/http2/hpack.huffmanCodes
vendor/golang.org/x/net/http2/hpack.huffmanCodeLen
go:itab.vendor/golang.org/x/net/http2/hpack.DecodingError
error
go:itab.vendor/golang.org/x/net/http2/hpack.InvalidIndexError
error
NET_METHODSUses Network to send and receive datasyscall.Bind
net.lookupPortMap
net.lookupPortMapWithNetwork
net.ParseCIDR
net.DialTimeout
net.DialUDP
OS_METHODSCan Execute OS commandsos.Kill
SYSCALL_METHODSCan perform system-level operationssyscall.Listen
syscall.Mkdir
syscall.Open
WEAK_CRYPTOUses Weak Cryptographic Algorithmscrypto/md5.init.0
crypto/md5.(*digest).Reset
crypto/md5.(*digest).MarshalBinary
crypto/md5.(*digest).UnmarshalBinary
crypto/md5.New
crypto/md5.(*digest).Size
crypto/md5.(*digest).BlockSize
crypto/md5.(*digest).Write
crypto/md5.(*digest).Sum
crypto/md5.(*digest).checkSum
crypto/md5.block.abi0
crypto/md5::inittask
go:itab.*crypto/md5.digest
hash.Hash
ZIP_METHODSCan perform Zip archive operationscompress/flate.NewReader

Comments