MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a877c8cab63651290d7fba73619a22157de658f056c708c154bb04bea3ceb7e. 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: 10


Intelligence 10 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7a877c8cab63651290d7fba73619a22157de658f056c708c154bb04bea3ceb7e
SHA3-384 hash: bdd457bd85194c0fad0a12769fd42a2dcbad303fa632a2709e977224968f0b31cd3903866fe74824fc65b03780fbc652
SHA1 hash: 476824befa9db5c437a0a3e322219a42f0326da2
MD5 hash: 9e7b72fc6d4a6b523db31a92955fb0af
humanhash: potato-quiet-winner-undress
File name:YMauSAr.exe
Download: download sample
File size:8'190'464 bytes
First seen:2025-04-06 08:39:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d42595b695fc008ef2c56aabd8efd68e (92 x Rhadamanthys, 60 x Vidar, 41 x LummaStealer)
ssdeep 98304:cRiSskFUXcgIEusiVbUhK/LgVZgOeZ4R:GJUXcwwU+SfeM
TLSH T1C6867C07ECA545A9C4ADD330CAB69253BA717C484B3223D36B60F7786F76BD0AA75700
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
Reporter abuse_ch
Tags:exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
29
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/911/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f23e16e011fe619fab87bc
Tags:
spawn lien hype
Result
Verdict:
Clean
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypto expand fingerprint golang lolbin packed packed packer_detected
Link:
https://www.filescan.io/uploads/67f23df32d430c849e08b674/reports/b0fece9b-7287-458a-8239-b33b346f94b1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/7a877c8cab63651290d7fba73619a22157de658f056c708c154bb04bea3ceb7e
Result
Verdict:
MALICIOUS
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/cbfc20a2-e300-4cb8-b91b-b7e82baf6d01
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad.mine
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1657710
Signature
Contains functionality to registers a callback to get notified when the system is suspended or resumed (often done by Miners)
Installs new ROOT certificates
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potentially malicious time measurement code found
Behaviour
Behavior Graph:
Download SVG
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7a877c8cab63651290d7fba73619a22157de658f056c708c154bb04bea3ceb7e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7a877c8cab63651290d7fba73619a22157de658f056c708c154bb04bea3ceb7e/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pkdxzdflmnsrfegx7ottmgncefl54zmpavwhbdavjoyex2r45n7a._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://tria.ge/reports/250406-kk1kbsxnt3/
Behaviour
GoLang User-Agent
Looks up external IP address via web service
Verdict:
Suspicious
Tags:
external_ip_lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/85ed52b2-dbe0-4044-8b29-98b25df0f0cd
Unpacked files
SH256 hash:
7a877c8cab63651290d7fba73619a22157de658f056c708c154bb04bea3ceb7e
MD5 hash:
9e7b72fc6d4a6b523db31a92955fb0af
SHA1 hash:
476824befa9db5c437a0a3e322219a42f0326da2
Link:
https://www.unpac.me/results/25ac154e-9d4f-4ba9-bcd9-a44d8aaff41c/
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/7a877c8cab63651290d7fba73619a22157de658f056c708c154bb04bea3ceb7e

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 7a877c8cab63651290d7fba73619a22157de658f056c708c154bb04bea3ceb7e

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/911/
  
URLhaus
https://urlhaus.abuse.ch/url/3502584/
  
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.OpenFile
os.openFileNolog
FILE_IO_WRITECan Create and Remove Filesos.Mkdir
os.Mkdir.func1
os.MkdirAll
os.newFile
os.newFileStatFromGetFileInformationByHandle
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

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